From e160bb93c2c1e0367476b9b6afa1323202162c02 Mon Sep 17 00:00:00 2001 From: zjy <731809715@qq.com> Date: Sun, 10 Nov 2024 16:00:36 +0800 Subject: [PATCH] =?UTF-8?q?=E6=B3=A8=E9=87=8A?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../src/net/micode/notes/data/Contact.java | 14 +- .../src/net/micode/notes/data/Notes.java | 186 +++++--- .../notes/data/NotesDatabaseHelper.java | 155 +++---- .../net/micode/notes/data/NotesProvider.java | 93 ++-- .../net/micode/notes/gtask/data/MetaData.java | 80 +++- .../src/net/micode/notes/gtask/data/Node.java | 91 ++-- .../net/micode/notes/gtask/data/SqlData.java | 155 ++++--- .../net/micode/notes/gtask/data/SqlNote.java | 310 ++++++++----- .../src/net/micode/notes/gtask/data/Task.java | 152 +++---- .../net/micode/notes/gtask/data/TaskList.java | 187 +++++--- .../exception/ActionFailureException.java | 25 +- .../exception/NetworkFailureException.java | 26 +- .../notes/gtask/remote/GTaskASyncTask.java | 86 ++-- .../notes/gtask/remote/GTaskClient.java | 357 ++++++++------- .../notes/gtask/remote/GTaskManager.java | 430 ++++++++++-------- .../notes/gtask/remote/GTaskSyncService.java | 88 ++-- .../src/net/micode/notes/model/Note.java | 135 +++--- .../net/micode/notes/model/WorkingNote.java | 200 ++++---- .../net/micode/notes/tool/BackupUtils.java | 159 +++---- .../src/net/micode/notes/tool/DataUtils.java | 120 +++-- .../micode/notes/tool/GTaskStringUtils.java | 102 +++-- .../net/micode/notes/tool/ResourceParser.java | 78 ++-- .../micode/notes/ui/AlarmAlertActivity.java | 100 +++- .../micode/notes/ui/AlarmInitReceiver.java | 25 +- .../net/micode/notes/ui/AlarmReceiver.java | 12 +- .../net/micode/notes/ui/DateTimePicker.java | 164 ++++--- .../micode/notes/ui/DateTimePickerDialog.java | 43 +- .../src/net/micode/notes/ui/DropdownMenu.java | 26 +- .../micode/notes/ui/FoldersListAdapter.java | 47 +- .../net/micode/notes/ui/NoteEditActivity.java | 422 ++++++++++++----- .../src/net/micode/notes/ui/NoteEditText.java | 137 ++++-- .../src/net/micode/notes/ui/NoteItemData.java | 92 ++-- .../micode/notes/ui/NotesListActivity.java | 298 +++++++----- .../net/micode/notes/ui/NotesListAdapter.java | 147 ++++-- .../net/micode/notes/ui/NotesListItem.java | 64 +-- .../notes/ui/NotesPreferenceActivity.java | 254 ++++++++--- 36 files changed, 3098 insertions(+), 1962 deletions(-) diff --git a/src/Notes-master/src/net/micode/notes/data/Contact.java b/src/Notes-master/src/net/micode/notes/data/Contact.java index d97ac5d..27bc8bd 100644 --- a/src/Notes-master/src/net/micode/notes/data/Contact.java +++ b/src/Notes-master/src/net/micode/notes/data/Contact.java @@ -24,11 +24,13 @@ import android.telephony.PhoneNumberUtils; import android.util.Log; import java.util.HashMap; - -public class Contact { +// change +public class Contact { // 联系人 private static HashMap sContactCache; private static final String TAG = "Contact"; + // 定义字符串CALLER_ID_SELECTION + private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL(" + Phone.NUMBER + ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'" + " AND " + Data.RAW_CONTACT_ID + " IN " @@ -36,17 +38,20 @@ public class Contact { + " FROM phone_lookup" + " WHERE min_match = '+')"; + // 获取联系人 public static String getContact(Context context, String phoneNumber) { if(sContactCache == null) { sContactCache = new HashMap(); } + // 查找HashMap中是否已有phoneNumber信息 if(sContactCache.containsKey(phoneNumber)) { return sContactCache.get(phoneNumber); } String selection = CALLER_ID_SELECTION.replace("+", PhoneNumberUtils.toCallerIDMinMatch(phoneNumber)); + // 查找数据库中phoneNumber的信息 Cursor cursor = context.getContentResolver().query( Data.CONTENT_URI, new String [] { Phone.DISPLAY_NAME }, @@ -54,17 +59,22 @@ public class Contact { new String[] { phoneNumber }, null); + // 判定查询结果 + // moveToFirst()返回第一条 if (cursor != null && cursor.moveToFirst()) { try { + // 找到相关信息 String name = cursor.getString(0); sContactCache.put(phoneNumber, name); return name; + // 异常 } catch (IndexOutOfBoundsException e) { Log.e(TAG, " Cursor get string error " + e.toString()); return null; } finally { cursor.close(); } + // 未找到相关信息 } else { Log.d(TAG, "No contact matched with number:" + phoneNumber); return null; diff --git a/src/Notes-master/src/net/micode/notes/data/Notes.java b/src/Notes-master/src/net/micode/notes/data/Notes.java index f240604..1cdfe5e 100644 --- a/src/Notes-master/src/net/micode/notes/data/Notes.java +++ b/src/Notes-master/src/net/micode/notes/data/Notes.java @@ -15,15 +15,19 @@ */ package net.micode.notes.data; - + +import android.content.ContentUris; import android.net.Uri; +// Notes 类中定义了很多常量，这些常量大多是int型和string型 public class Notes { public static final String AUTHORITY = "micode_notes"; public static final String TAG = "Notes"; + + //以下三个常量对NoteColumns.TYPE的值进行设置时会用到 public static final int TYPE_NOTE = 0; public static final int TYPE_FOLDER = 1; public static final int TYPE_SYSTEM = 2; - + /** * Following IDs are system folders' identifiers * {@link Notes#ID_ROOT_FOLDER } is default folder @@ -34,246 +38,282 @@ public class Notes { public static final int ID_TEMPARAY_FOLDER = -1; public static final int ID_CALL_RECORD_FOLDER = -2; public static final int ID_TRASH_FOLER = -3; - - public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date"; - public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id"; - public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id"; - public static final String INTENT_EXTRA_WIDGET_TYPE = "net.micode.notes.widget_type"; - public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id"; - public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date"; - + + public static final String INTENT_EXTRA_ALERT_DATE = + +"net.micode.notes.alert_date"; + public static final String INTENT_EXTRA_BACKGROUND_ID = + +"net.micode.notes.background_color_id"; + public static final String INTENT_EXTRA_WIDGET_ID = + +"net.micode.notes.widget_id"; + public static final String INTENT_EXTRA_WIDGET_TYPE = + +"net.micode.notes.widget_type"; + public static final String INTENT_EXTRA_FOLDER_ID = + +"net.micode.notes.folder_id"; + public static final String INTENT_EXTRA_CALL_DATE = + +"net.micode.notes.call_date"; + public static final int TYPE_WIDGET_INVALIDE = -1; public static final int TYPE_WIDGET_2X = 0; public static final int TYPE_WIDGET_4X = 1; - + public static class DataConstants { public static final String NOTE = TextNote.CONTENT_ITEM_TYPE; public static final String CALL_NOTE = CallNote.CONTENT_ITEM_TYPE; } - + /** * Uri to query all notes and folders */ - public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note"); - + public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + + +AUTHORITY + "/note");//定义查询便签和文件夹的指针。 + +// public static final Uri my_URI = ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI , 10); + /** * Uri to query data */ - public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data"); - + public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + + +AUTHORITY + "/data");//定义查找数据的指针。 + + // 定义NoteColumns的常量,用于后面创建数据库的表头 public interface NoteColumns { /** * The unique ID for a row *

Type: INTEGER (long)

*/ public static final String ID = "_id"; - + /** * The parent's id for note or folder *

Type: INTEGER (long)

*/ - public static final String PARENT_ID = "parent_id"; - + public static final String PARENT_ID = "parent_id";//为什么会有parent_id + /** * Created data for note or folder *

Type: INTEGER (long)

*/ public static final String CREATED_DATE = "created_date"; - + /** * Latest modified date *

Type: INTEGER (long)

*/ public static final String MODIFIED_DATE = "modified_date"; - - + + /** * Alert date *

Type: INTEGER (long)

*/ public static final String ALERTED_DATE = "alert_date"; - + /** * Folder's name or text content of note *

Type: TEXT

*/ public static final String SNIPPET = "snippet"; - + /** * Note's widget id *

Type: INTEGER (long)

*/ public static final String WIDGET_ID = "widget_id"; - + /** * Note's widget type *

Type: INTEGER (long)

*/ public static final String WIDGET_TYPE = "widget_type"; - + /** * Note's background color's id *

Type: INTEGER (long)

*/ public static final String BG_COLOR_ID = "bg_color_id"; - + /** * For text note, it doesn't has attachment, for multi-media * note, it has at least one attachment *

Type: INTEGER

*/ public static final String HAS_ATTACHMENT = "has_attachment"; - + /** * Folder's count of notes *

Type: INTEGER (long)

*/ public static final String NOTES_COUNT = "notes_count"; - + /** * The file type: folder or note *

Type: INTEGER

*/ public static final String TYPE = "type"; - + /** * The last sync id *

Type: INTEGER (long)

*/ - public static final String SYNC_ID = "sync_id"; - + public static final String SYNC_ID = "sync_id";//同步 + /** * Sign to indicate local modified or not *

Type: INTEGER

*/ public static final String LOCAL_MODIFIED = "local_modified"; - + /** * Original parent id before moving into temporary folder *

Type : INTEGER

*/ public static final String ORIGIN_PARENT_ID = "origin_parent_id"; - + /** * The gtask id *

Type : TEXT

*/ public static final String GTASK_ID = "gtask_id"; - + /** * The version code *

Type : INTEGER (long)

*/ public static final String VERSION = "version"; - } - + }//这些常量主要是定义便签的属性的。 + + // 定义DataColumns的常量,用于后面创建数据库的表头 public interface DataColumns { /** * The unique ID for a row *

Type: INTEGER (long)

*/ public static final String ID = "_id"; - + /** * The MIME type of the item represented by this row. *

Type: Text

*/ public static final String MIME_TYPE = "mime_type"; - + /** * The reference id to note that this data belongs to *

Type: INTEGER (long)

*/ public static final String NOTE_ID = "note_id"; - + /** * Created data for note or folder *

Type: INTEGER (long)

*/ public static final String CREATED_DATE = "created_date"; - + /** * Latest modified date *

Type: INTEGER (long)

*/ public static final String MODIFIED_DATE = "modified_date"; - + /** * Data's content *

Type: TEXT

*/ public static final String CONTENT = "content"; - - + + /** - * Generic data column, the meaning is {@link #MIMETYPE} specific, used for + * Generic data column, the meaning is {@link #MIMETYPE} specific, +used for * integer data type *

Type: INTEGER

*/ public static final String DATA1 = "data1"; - + /** - * Generic data column, the meaning is {@link #MIMETYPE} specific, used for + * Generic data column, the meaning is {@link #MIMETYPE} specific, +used for * integer data type *

Type: INTEGER

*/ public static final String DATA2 = "data2"; - + /** - * Generic data column, the meaning is {@link #MIMETYPE} specific, used for + * Generic data column, the meaning is {@link #MIMETYPE} specific, +used for * TEXT data type *

Type: TEXT

*/ public static final String DATA3 = "data3"; - + /** - * Generic data column, the meaning is {@link #MIMETYPE} specific, used for + * Generic data column, the meaning is {@link #MIMETYPE} specific, +used for * TEXT data type *

Type: TEXT

*/ public static final String DATA4 = "data4"; - + /** - * Generic data column, the meaning is {@link #MIMETYPE} specific, used for + * Generic data column, the meaning is {@link #MIMETYPE} specific, +used for * TEXT data type *

Type: TEXT

*/ public static final String DATA5 = "data5"; - } - + }//主要是定义存储便签内容数据的 public static final class TextNote implements DataColumns { /** * Mode to indicate the text in check list mode or not *

Type: Integer 1:check list mode 0: normal mode

*/ public static final String MODE = DATA1; - + public static final int MODE_CHECK_LIST = 1; - - public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note"; - - public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note"; - - public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note"); - } - + + public static final String CONTENT_TYPE = + +"vnd.android.cursor.dir/text_note"; + + public static final String CONTENT_ITEM_TYPE = + +"vnd.android.cursor.item/text_note"; + + public static final Uri CONTENT_URI = Uri.parse("content://" + + +AUTHORITY + "/text_note"); + }//文本内容的数据结构 + public static final class CallNote implements DataColumns { /** * Call date for this record *

Type: INTEGER (long)

*/ public static final String CALL_DATE = DATA1; - + /** * Phone number for this record *

Type: TEXT

*/ public static final String PHONE_NUMBER = DATA3; - - public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note"; - - public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note"; - - public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note"); - } -} + + public static final String CONTENT_TYPE = + +"vnd.android.cursor.dir/call_note"; + + public static final String CONTENT_ITEM_TYPE = + +"vnd.android.cursor.item/call_note"; + + public static final Uri CONTENT_URI = Uri.parse("content://" + + +AUTHORITY + "/call_note"); + }//电话内容的数据结构 +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/data/NotesDatabaseHelper.java b/src/Notes-master/src/net/micode/notes/data/NotesDatabaseHelper.java index ffe5d57..66463b2 100644 --- a/src/Notes-master/src/net/micode/notes/data/NotesDatabaseHelper.java +++ b/src/Notes-master/src/net/micode/notes/data/NotesDatabaseHelper.java @@ -15,33 +15,33 @@ */ package net.micode.notes.data; - -import android.content.ContentValues; -import android.content.Context; -import android.database.sqlite.SQLiteDatabase; -import android.database.sqlite.SQLiteOpenHelper; + +import android.content.ContentValues;//就是用于保存一些数据（string boolean byte double float int long short ...）信息，这些信息可以被数据库操作时使用。 +import android.content.Context;//加载和访问资源。（android中主要是这两个功能，但是这里具体不清楚） +import android.database.sqlite.SQLiteDatabase;//主要提供了对应于添加、删除、更新、查询的操作方法： insert()、delete()、update()和query()。配合content.values +import android.database.sqlite.SQLiteOpenHelper;//用来管理数据的创建和版本更新 import android.util.Log; - + import net.micode.notes.data.Notes.DataColumns; import net.micode.notes.data.Notes.DataConstants; import net.micode.notes.data.Notes.NoteColumns; - - +//数据库操作，用SQLOpenhelper,对一些note和文件进行数据库的操作，比如删除文件后，将文件里的note也相应删除 + public class NotesDatabaseHelper extends SQLiteOpenHelper { private static final String DB_NAME = "note.db"; - + private static final int DB_VERSION = 4; - - public interface TABLE { + + public interface TABLE { //接口，分成note和data，在后面的程序里分别使用过 public static final String NOTE = "note"; - + public static final String DATA = "data"; } - + private static final String TAG = "NotesDatabaseHelper"; - + private static NotesDatabaseHelper mInstance; - + private static final String CREATE_NOTE_TABLE_SQL = "CREATE TABLE " + TABLE.NOTE + "(" + NoteColumns.ID + " INTEGER PRIMARY KEY," + @@ -61,8 +61,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," + NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" + - ")"; - + ")";//数据库中需要存储的项目的名称，就相当于创建一个表格的表头的内容。 + private static final String CREATE_DATA_TABLE_SQL = "CREATE TABLE " + TABLE.DATA + "(" + DataColumns.ID + " INTEGER PRIMARY KEY," + @@ -76,12 +76,12 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," + DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," + DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" + - ")"; - + ")";//和上面的功能一样，主要是存储的项目不同 + private static final String CREATE_DATA_NOTE_ID_INDEX_SQL = "CREATE INDEX IF NOT EXISTS note_id_index ON " + - TABLE.DATA + "(" + DataColumns.NOTE_ID + ");"; - + TABLE.DATA + "(" + DataColumns.NOTE_ID + ");";//存储便签编号的一个数据表格 + /** * Increase folder's note count when move note to the folder */ @@ -92,8 +92,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " UPDATE " + TABLE.NOTE + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" + " WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" + - " END"; - + " END";//在文件夹中移入一个Note之后需要更改的数据的表格。 + /** * Decrease folder's note count when move note from folder */ @@ -105,8 +105,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" + " WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID + " AND " + NoteColumns.NOTES_COUNT + ">0" + ";" + - " END"; - + " END";//在文件夹中移出一个Note之后需要更改的数据的表格。 + /** * Increase folder's note count when insert new note to the folder */ @@ -117,8 +117,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " UPDATE " + TABLE.NOTE + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" + " WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" + - " END"; - + " END";//在文件夹中插入一个Note之后需要更改的数据的表格。 + /** * Decrease folder's note count when delete note from the folder */ @@ -130,8 +130,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" + " WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID + " AND " + NoteColumns.NOTES_COUNT + ">0;" + - " END"; - + " END";//在文件夹中删除一个Note之后需要更改的数据的表格。 + /** * Update note's content when insert data with type {@link DataConstants#NOTE} */ @@ -143,8 +143,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " UPDATE " + TABLE.NOTE + " SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT + " WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" + - " END"; - + " END";//在文件夹中对一个Note导入新的数据之后需要更改的数据的表格。 + /** * Update note's content when data with {@link DataConstants#NOTE} type has changed */ @@ -156,8 +156,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " UPDATE " + TABLE.NOTE + " SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT + " WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" + - " END"; - + " END";//Note数据被修改后需要更改的数据的表格。 + /** * Update note's content when data with {@link DataConstants#NOTE} type has deleted */ @@ -169,8 +169,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " UPDATE " + TABLE.NOTE + " SET " + NoteColumns.SNIPPET + "=''" + " WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" + - " END"; - + " END";//Note数据被删除后需要更改的数据的表格。 + /** * Delete datas belong to note which has been deleted */ @@ -180,8 +180,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " BEGIN" + " DELETE FROM " + TABLE.DATA + " WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" + - " END"; - + " END";//删除已删除的便签的数据后需要更改的数据的表格。 + /** * Delete notes belong to folder which has been deleted */ @@ -191,8 +191,8 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " BEGIN" + " DELETE FROM " + TABLE.NOTE + " WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" + - " END"; - + " END";//删除已删除的文件夹的便签后需要更改的数据的表格。 + /** * Move notes belong to folder which has been moved to trash folder */ @@ -204,19 +204,19 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { " UPDATE " + TABLE.NOTE + " SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER + " WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" + - " END"; - + " END";//还原垃圾桶中便签后需要更改的数据的表格。 + public NotesDatabaseHelper(Context context) { super(context, DB_NAME, null, DB_VERSION); - } - + }//构造函数，传入数据库的名称和版本 + public void createNoteTable(SQLiteDatabase db) { db.execSQL(CREATE_NOTE_TABLE_SQL); reCreateNoteTableTriggers(db); createSystemFolder(db); Log.d(TAG, "note table has been created"); - } - + }//创建表格（用来存储标签属性） + private void reCreateNoteTableTriggers(SQLiteDatabase db) { db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_update"); db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_update"); @@ -225,7 +225,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_insert"); db.execSQL("DROP TRIGGER IF EXISTS folder_delete_notes_on_delete"); db.execSQL("DROP TRIGGER IF EXISTS folder_move_notes_on_trash"); - + db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER); db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER); db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER); @@ -233,18 +233,19 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER); db.execSQL(FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER); db.execSQL(FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER); - } - + }//execSQL是数据库操作的API，主要是更改行为的SQL语句。 + //在这里主要是用来重新创建上述定义的表格用的，先删除原来有的数据库的触发器再重新创建新的数据库 + private void createSystemFolder(SQLiteDatabase db) { ContentValues values = new ContentValues(); - + /** * call record foler for call notes */ values.put(NoteColumns.ID, Notes.ID_CALL_RECORD_FOLDER); values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); db.insert(TABLE.NOTE, null, values); - + /** * root folder which is default folder */ @@ -252,7 +253,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER); values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); db.insert(TABLE.NOTE, null, values); - + /** * temporary folder which is used for moving note */ @@ -260,7 +261,7 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { values.put(NoteColumns.ID, Notes.ID_TEMPARAY_FOLDER); values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); db.insert(TABLE.NOTE, null, values); - + /** * create trash folder */ @@ -268,78 +269,80 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER); values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); db.insert(TABLE.NOTE, null, values); - } - + }//创建几个系统文件夹 + public void createDataTable(SQLiteDatabase db) { db.execSQL(CREATE_DATA_TABLE_SQL); reCreateDataTableTriggers(db); db.execSQL(CREATE_DATA_NOTE_ID_INDEX_SQL); Log.d(TAG, "data table has been created"); - } - + }//创建表格（用来存储标签内容） + private void reCreateDataTableTriggers(SQLiteDatabase db) { db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_insert"); db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_update"); db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_delete"); - + db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER); db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER); db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER); - } - + }//同上面的execSQL + static synchronized NotesDatabaseHelper getInstance(Context context) { if (mInstance == null) { mInstance = new NotesDatabaseHelper(context); } return mInstance; - } - + }//上网查是为解决同一时刻只能有一个线程执行. + //在写程序库代码时，有时有一个类需要被所有的其它类使用， + //但又要求这个类只能被实例化一次，是个服务类，定义一次，其它类使用同一个这个类的实例 + @Override public void onCreate(SQLiteDatabase db) { createNoteTable(db); createDataTable(db); - } - + }//实现两个表格（上面创建的两个表格） + @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { boolean reCreateTriggers = false; boolean skipV2 = false; - + if (oldVersion == 1) { upgradeToV2(db); skipV2 = true; // this upgrade including the upgrade from v2 to v3 oldVersion++; } - + if (oldVersion == 2 && !skipV2) { upgradeToV3(db); reCreateTriggers = true; oldVersion++; } - + if (oldVersion == 3) { upgradeToV4(db); oldVersion++; } - + if (reCreateTriggers) { reCreateNoteTableTriggers(db); reCreateDataTableTriggers(db); } - + if (oldVersion != newVersion) { throw new IllegalStateException("Upgrade notes database to version " + newVersion + "fails"); } - } - + }//数据库版本的更新（数据库内容的更改） + private void upgradeToV2(SQLiteDatabase db) { db.execSQL("DROP TABLE IF EXISTS " + TABLE.NOTE); db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA); createNoteTable(db); createDataTable(db); - } - + }//更新到V2版本 + private void upgradeToV3(SQLiteDatabase db) { // drop unused triggers db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_insert"); @@ -353,10 +356,10 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper { values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER); values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); db.insert(TABLE.NOTE, null, values); - } - + }//更新到V3版本 + private void upgradeToV4(SQLiteDatabase db) { db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0"); - } -} + }//更新到V4版本,但是不知道V2、V3、V4是什么意思 +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/data/NotesProvider.java b/src/Notes-master/src/net/micode/notes/data/NotesProvider.java index edb0a60..1ed1bd8 100644 --- a/src/Notes-master/src/net/micode/notes/data/NotesProvider.java +++ b/src/Notes-master/src/net/micode/notes/data/NotesProvider.java @@ -15,8 +15,7 @@ */ package net.micode.notes.data; - - + import android.app.SearchManager; import android.content.ContentProvider; import android.content.ContentUris; @@ -28,30 +27,38 @@ import android.database.sqlite.SQLiteDatabase; import android.net.Uri; import android.text.TextUtils; import android.util.Log; - + import net.micode.notes.R; import net.micode.notes.data.Notes.DataColumns; import net.micode.notes.data.Notes.NoteColumns; import net.micode.notes.data.NotesDatabaseHelper.TABLE; - - +//为存储和获取数据提供接口。可以在不同的应用程序之间共享数据 +//ContentProvider提供的方法 +//query：查询 +//insert：插入 +//update：更新 +//delete：删除 +//getType：得到数据类型 public class NotesProvider extends ContentProvider { + // UriMatcher用于匹配Uri private static final UriMatcher mMatcher; - + private NotesDatabaseHelper mHelper; - + private static final String TAG = "NotesProvider"; - + private static final int URI_NOTE = 1; private static final int URI_NOTE_ITEM = 2; private static final int URI_DATA = 3; private static final int URI_DATA_ITEM = 4; - + private static final int URI_SEARCH = 5; private static final int URI_SEARCH_SUGGEST = 6; - + static { + // 创建UriMatcher时，调用UriMatcher(UriMatcher.NO_MATCH)表示不匹配任何路径的返回码 mMatcher = new UriMatcher(UriMatcher.NO_MATCH); + // 把需要匹配Uri路径全部给注册上 mMatcher.addURI(Notes.AUTHORITY, "note", URI_NOTE); mMatcher.addURI(Notes.AUTHORITY, "note/#", URI_NOTE_ITEM); mMatcher.addURI(Notes.AUTHORITY, "data", URI_DATA); @@ -60,11 +67,12 @@ public class NotesProvider extends ContentProvider { mMatcher.addURI(Notes.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY, URI_SEARCH_SUGGEST); mMatcher.addURI(Notes.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY + "/*", URI_SEARCH_SUGGEST); } - + /** * x'0A' represents the '\n' character in sqlite. For title and content in the search result, * we will trim '\n' and white space in order to show more information. */ + // 声明 NOTES_SEARCH_PROJECTION private static final String NOTES_SEARCH_PROJECTION = NoteColumns.ID + "," + NoteColumns.ID + " AS " + SearchManager.SUGGEST_COLUMN_INTENT_EXTRA_DATA + "," + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_1 + "," @@ -72,26 +80,32 @@ public class NotesProvider extends ContentProvider { + R.drawable.search_result + " AS " + SearchManager.SUGGEST_COLUMN_ICON_1 + "," + "'" + Intent.ACTION_VIEW + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_ACTION + "," + "'" + Notes.TextNote.CONTENT_TYPE + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_DATA; - + // 声明NOTES_SNIPPET_SEARCH_QUERY private static String NOTES_SNIPPET_SEARCH_QUERY = "SELECT " + NOTES_SEARCH_PROJECTION + " FROM " + TABLE.NOTE + " WHERE " + NoteColumns.SNIPPET + " LIKE ?" + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE; - + @Override + // Context只有在onCreate()中才被初始化 + // 对mHelper进行实例化 public boolean onCreate() { mHelper = NotesDatabaseHelper.getInstance(getContext()); return true; } - + @Override + // 查询uri在数据库中对应的位置 public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) { Cursor c = null; + // 获取可读数据库 SQLiteDatabase db = mHelper.getReadableDatabase(); String id = null; + // 匹配查找uri switch (mMatcher.match(uri)) { + // 对于不同的匹配值，在数据库中查找相应的条目 case URI_NOTE: c = db.query(TABLE.NOTE, projection, selection, selectionArgs, null, null, sortOrder); @@ -113,23 +127,26 @@ public class NotesProvider extends ContentProvider { case URI_SEARCH: case URI_SEARCH_SUGGEST: if (sortOrder != null || projection != null) { + // 不合法的参数异常 throw new IllegalArgumentException( "do not specify sortOrder, selection, selectionArgs, or projection" + "with this query"); } - + String searchString = null; if (mMatcher.match(uri) == URI_SEARCH_SUGGEST) { if (uri.getPathSegments().size() > 1) { + // getPathSegments()方法得到一个String的List， + // 在uri.getPathSegments().get(1)为第2个元素 searchString = uri.getPathSegments().get(1); } } else { searchString = uri.getQueryParameter("pattern"); } - + if (TextUtils.isEmpty(searchString)) { return null; } - + try { searchString = String.format("%%%s%%", searchString); c = db.rawQuery(NOTES_SNIPPET_SEARCH_QUERY, @@ -139,6 +156,7 @@ public class NotesProvider extends ContentProvider { } break; default: + // 抛出异常 throw new IllegalArgumentException("Unknown URI " + uri); } if (c != null) { @@ -146,15 +164,19 @@ public class NotesProvider extends ContentProvider { } return c; } - + @Override + // 插入一个uri public Uri insert(Uri uri, ContentValues values) { + // 获得可写的数据库 SQLiteDatabase db = mHelper.getWritableDatabase(); long dataId = 0, noteId = 0, insertedId = 0; switch (mMatcher.match(uri)) { + // 新增一个条目 case URI_NOTE: insertedId = noteId = db.insert(TABLE.NOTE, null, values); break; + // 如果存在，查找NOTE_ID case URI_DATA: if (values.containsKey(DataColumns.NOTE_ID)) { noteId = values.getAsLong(DataColumns.NOTE_ID); @@ -163,28 +185,33 @@ public class NotesProvider extends ContentProvider { } insertedId = dataId = db.insert(TABLE.DATA, null, values); break; - default: + default: throw new IllegalArgumentException("Unknown URI " + uri); } // Notify the note uri + // notifyChange获得一个ContextResolver对象并且更新里面的内容 if (noteId > 0) { getContext().getContentResolver().notifyChange( ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null); } - + // Notify the data uri if (dataId > 0) { getContext().getContentResolver().notifyChange( ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null); } - + + // 返回插入的uri的路径 return ContentUris.withAppendedId(uri, insertedId); } - + @Override + // 删除一个uri public int delete(Uri uri, String selection, String[] selectionArgs) { + //Uri代表要操作的数据，Android上可用的每种资源 -包括 图像、视频片段、音频资源等都可以用Uri来表示。 int count = 0; String id = null; + // 获得可写的数据库 SQLiteDatabase db = mHelper.getWritableDatabase(); boolean deleteData = false; switch (mMatcher.match(uri)) { @@ -226,8 +253,9 @@ public class NotesProvider extends ContentProvider { } return count; } - + @Override + // 更新一个uri public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) { int count = 0; String id = null; @@ -257,7 +285,7 @@ public class NotesProvider extends ContentProvider { default: throw new IllegalArgumentException("Unknown URI " + uri); } - + if (count > 0) { if (updateData) { getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null); @@ -266,11 +294,13 @@ public class NotesProvider extends ContentProvider { } return count; } - + + // 将字符串解析成规定格式 private String parseSelection(String selection) { return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : ""); } - + + //增加一个noteVersion private void increaseNoteVersion(long id, String selection, String[] selectionArgs) { StringBuilder sql = new StringBuilder(120); sql.append("UPDATE "); @@ -278,7 +308,7 @@ public class NotesProvider extends ContentProvider { sql.append(" SET "); sql.append(NoteColumns.VERSION); sql.append("=" + NoteColumns.VERSION + "+1 "); - + if (id > 0 || !TextUtils.isEmpty(selection)) { sql.append(" WHERE "); } @@ -292,14 +322,15 @@ public class NotesProvider extends ContentProvider { } sql.append(selectString); } - + + // execSQL()方法可以执行insert、delete、update和CREATE TABLE之类有更改行为的SQL语句 mHelper.getWritableDatabase().execSQL(sql.toString()); } - + @Override public String getType(Uri uri) { // TODO Auto-generated method stub return null; } - -} + +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/gtask/data/MetaData.java b/src/Notes-master/src/net/micode/notes/gtask/data/MetaData.java index 3a2050b..7955905 100644 --- a/src/Notes-master/src/net/micode/notes/gtask/data/MetaData.java +++ b/src/Notes-master/src/net/micode/notes/gtask/data/MetaData.java @@ -15,40 +15,55 @@ */ package net.micode.notes.gtask.data; - -import android.database.Cursor; -import android.util.Log; - -import net.micode.notes.tool.GTaskStringUtils; - -import org.json.JSONException; -import org.json.JSONObject; - - + public class MetaData extends Task { + /* + * 功能描述：得到类的简写名称存入字符串TAG中 + * 实现过程：调用getSimpleName ()函数 + */ private final static String TAG = MetaData.class.getSimpleName(); - private String mRelatedGid = null; - - public void setMeta(String gid, JSONObject metaInfo) { + /* + * 功能描述：设置数据，即生成元数据库 + * 实现过程：调用JSONObject库函数put ()，Task类中的setNotes ()和setName ()函数 + * 参数注解： + */ + public void setMeta(String gid, JSONObject metaInfo) + { + //对函数块进行注释 try { metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid); + /* + * 将这对键值放入metaInfo这个jsonobject对象中 + */ } catch (JSONException e) { Log.e(TAG, "failed to put related gid"); + /* + * 输出错误信息 + */ } setNotes(metaInfo.toString()); setName(GTaskStringUtils.META_NOTE_NAME); } - + /* + * 功能描述：获取相关联的Gid + */ public String getRelatedGid() { return mRelatedGid; } - + /* + * 功能描述：判断当前数据是否为空，若为空则返回真即值得保存 + * Made By CuiCan + */ @Override public boolean isWorthSaving() { return getNotes() != null; } - + /* + * 功能描述：使用远程json数据对象设置元数据内容 + * 实现过程：调用父类Task中的setContentByRemoteJSON ()函数，并 + * 参数注解： + */ @Override public void setContentByRemoteJSON(JSONObject js) { super.setContentByRemoteJSON(js); @@ -58,25 +73,48 @@ public class MetaData extends Task { mRelatedGid = metaInfo.getString(GTaskStringUtils.META_HEAD_GTASK_ID); } catch (JSONException e) { Log.w(TAG, "failed to get related gid"); + /* + * 输出警告信息 + */ mRelatedGid = null; } } } - + /* + * 功能描述：使用本地json数据对象设置元数据内容，一般不会用到，若用到，则抛出异常 + * Made By CuiCan + */ @Override public void setContentByLocalJSON(JSONObject js) { // this function should not be called throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called"); + /* + * 传递非法参数异常 + */ } - + /* + * 功能描述：从元数据内容中获取本地json对象，一般不会用到，若用到，则抛出异常 + * Made By CuiCan + */ @Override public JSONObject getLocalJSONFromContent() { throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called"); + /* + * 传递非法参数异常 + * Made By Cui Can + */ } - + /* + * 功能描述：获取同步动作状态，一般不会用到，若用到，则抛出异常 + * Made By CuiCan + */ @Override public int getSyncAction(Cursor c) { throw new IllegalAccessError("MetaData:getSyncAction should not be called"); + /* + * 传递非法参数异常 + * Made By Cui Can + */ } - -} + +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/gtask/data/Node.java b/src/Notes-master/src/net/micode/notes/gtask/data/Node.java index 63950e0..ce1fce9 100644 --- a/src/Notes-master/src/net/micode/notes/gtask/data/Node.java +++ b/src/Notes-master/src/net/micode/notes/gtask/data/Node.java @@ -15,87 +15,92 @@ */ package net.micode.notes.gtask.data; - + import android.database.Cursor; - + import org.json.JSONObject; - + +/** + * 应该是同步操作的基础数据类型，定义了相关指示同步操作的常量 + * 关键字：abstract + */ public abstract class Node { - public static final int SYNC_ACTION_NONE = 0; - - public static final int SYNC_ACTION_ADD_REMOTE = 1; - - public static final int SYNC_ACTION_ADD_LOCAL = 2; - - public static final int SYNC_ACTION_DEL_REMOTE = 3; - - public static final int SYNC_ACTION_DEL_LOCAL = 4; - - public static final int SYNC_ACTION_UPDATE_REMOTE = 5; - - public static final int SYNC_ACTION_UPDATE_LOCAL = 6; - - public static final int SYNC_ACTION_UPDATE_CONFLICT = 7; - - public static final int SYNC_ACTION_ERROR = 8; - + //定义了各种用于表征同步状态的常量 + public static final int SYNC_ACTION_NONE = 0;// 本地和云端都无可更新内容（即本地和云端内容一致） + + public static final int SYNC_ACTION_ADD_REMOTE = 1;// 需要在远程云端增加内容 + + public static final int SYNC_ACTION_ADD_LOCAL = 2;// 需要在本地增加内容 + + public static final int SYNC_ACTION_DEL_REMOTE = 3;// 需要在远程云端删除内容 + + public static final int SYNC_ACTION_DEL_LOCAL = 4;// 需要在本地删除内容 + + public static final int SYNC_ACTION_UPDATE_REMOTE = 5;// 需要将本地内容更新到远程云端 + + public static final int SYNC_ACTION_UPDATE_LOCAL = 6;// 需要将远程云端内容更新到本地 + + public static final int SYNC_ACTION_UPDATE_CONFLICT = 7;// 同步出现冲突 + + public static final int SYNC_ACTION_ERROR = 8;// 同步出现错误 + private String mGid; - + private String mName; - - private long mLastModified; - - private boolean mDeleted; - + + private long mLastModified;//记录最后一次修改时间 + + private boolean mDeleted;//表征是否被删除 + public Node() { mGid = null; mName = ""; mLastModified = 0; mDeleted = false; } - + public abstract JSONObject getCreateAction(int actionId); - + public abstract JSONObject getUpdateAction(int actionId); - + public abstract void setContentByRemoteJSON(JSONObject js); - + public abstract void setContentByLocalJSON(JSONObject js); - + public abstract JSONObject getLocalJSONFromContent(); - + public abstract int getSyncAction(Cursor c); - + public void setGid(String gid) { this.mGid = gid; } - + public void setName(String name) { this.mName = name; } - + public void setLastModified(long lastModified) { this.mLastModified = lastModified; } - + public void setDeleted(boolean deleted) { this.mDeleted = deleted; } - + public String getGid() { return this.mGid; } - + public String getName() { return this.mName; } - + public long getLastModified() { return this.mLastModified; } - + public boolean getDeleted() { return this.mDeleted; } - -} + +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/gtask/data/SqlData.java b/src/Notes-master/src/net/micode/notes/gtask/data/SqlData.java index d3ec3be..90cefc7 100644 --- a/src/Notes-master/src/net/micode/notes/gtask/data/SqlData.java +++ b/src/Notes-master/src/net/micode/notes/gtask/data/SqlData.java @@ -14,81 +14,107 @@ * limitations under the License. */ +/* + * Description：用于支持小米便签最底层的数据库相关操作，和sqlnote的关系上是子集关系，即data是note的子集（节点）。 + * SqlData其实就是也就是所谓数据中的数据 + */ + package net.micode.notes.gtask.data; - -import android.content.ContentResolver; -import android.content.ContentUris; -import android.content.ContentValues; -import android.content.Context; -import android.database.Cursor; -import android.net.Uri; -import android.util.Log; - -import net.micode.notes.data.Notes; -import net.micode.notes.data.Notes.DataColumns; -import net.micode.notes.data.Notes.DataConstants; -import net.micode.notes.data.Notes.NoteColumns; -import net.micode.notes.data.NotesDatabaseHelper.TABLE; -import net.micode.notes.gtask.exception.ActionFailureException; - -import org.json.JSONException; -import org.json.JSONObject; - - +/* + * 功能描述： + * 实现过程： + * 参数注解： + * Made By CuiCan + */ + public class SqlData { + /* + * 功能描述：得到类的简写名称存入字符串TAG中 + * 实现过程：调用getSimpleName ()函数 + * Made By CuiCan + */ private static final String TAG = SqlData.class.getSimpleName(); - - private static final int INVALID_ID = -99999; - + + private static final int INVALID_ID = -99999;//为mDataId置初始值-99999 + + + /** + * 来自Notes类中定义的DataColumn中的一些常量 + */ + + // 集合了interface DataColumns中所有SF常量 public static final String[] PROJECTION_DATA = new String[] { DataColumns.ID, DataColumns.MIME_TYPE, DataColumns.CONTENT, DataColumns.DATA1, DataColumns.DATA3 }; - + + /** + * 以下五个变量作为sql表中5列的编号 + */ public static final int DATA_ID_COLUMN = 0; - + public static final int DATA_MIME_TYPE_COLUMN = 1; - + public static final int DATA_CONTENT_COLUMN = 2; - + public static final int DATA_CONTENT_DATA_1_COLUMN = 3; - + public static final int DATA_CONTENT_DATA_3_COLUMN = 4; - + private ContentResolver mContentResolver; - + //判断是否直接用Content生成，是为true，否则为false private boolean mIsCreate; - + private long mDataId; - + private String mDataMimeType; - + private String mDataContent; - + private long mDataContentData1; - + private String mDataContentData3; - + private ContentValues mDiffDataValues; - + + /* + * 功能描述：构造函数，用于初始化数据 + * 参数注解：mContentResolver用于获取ContentProvider提供的数据 + * 参数注解： mIsCreate表征当前数据是用哪种方式创建（两种构造函数的参数不同） + * 参数注解： + * Made By CuiCan + */ public SqlData(Context context) { mContentResolver = context.getContentResolver(); mIsCreate = true; - mDataId = INVALID_ID; + mDataId = INVALID_ID;//mDataId置初始值-99999 mDataMimeType = DataConstants.NOTE; mDataContent = ""; mDataContentData1 = 0; mDataContentData3 = ""; mDiffDataValues = new ContentValues(); } - + + + /* + * 功能描述：构造函数，初始化数据 + * 参数注解：mContentResolver用于获取ContentProvider提供的数据 + * 参数注解： mIsCreate表征当前数据是用哪种方式创建（两种构造函数的参数不同） + * 参数注解： + * Made By CuiCan + */ public SqlData(Context context, Cursor c) { mContentResolver = context.getContentResolver(); mIsCreate = false; loadFromCursor(c); mDiffDataValues = new ContentValues(); } - + + /* + * 功能描述：从光标处加载数据 + * 从当前的光标处将五列的数据加载到该类的对象 + * Made By CuiCan + */ private void loadFromCursor(Cursor c) { mDataId = c.getLong(DATA_ID_COLUMN); mDataMimeType = c.getString(DATA_MIME_TYPE_COLUMN); @@ -96,45 +122,59 @@ public class SqlData { mDataContentData1 = c.getLong(DATA_CONTENT_DATA_1_COLUMN); mDataContentData3 = c.getString(DATA_CONTENT_DATA_3_COLUMN); } - + + + /* + * 功能描述：设置用于共享的数据，并提供异常抛出与处理机制 + * 参数注解： + * Made By CuiCan + */ public void setContent(JSONObject js) throws JSONException { + //如果传入的JSONObject对象中有DataColumns.ID这一项，则设置，否则设为INVALID_ID long dataId = js.has(DataColumns.ID) ? js.getLong(DataColumns.ID) : INVALID_ID; if (mIsCreate || mDataId != dataId) { mDiffDataValues.put(DataColumns.ID, dataId); } mDataId = dataId; - + String dataMimeType = js.has(DataColumns.MIME_TYPE) ? js.getString(DataColumns.MIME_TYPE) : DataConstants.NOTE; if (mIsCreate || !mDataMimeType.equals(dataMimeType)) { mDiffDataValues.put(DataColumns.MIME_TYPE, dataMimeType); } mDataMimeType = dataMimeType; - + String dataContent = js.has(DataColumns.CONTENT) ? js.getString(DataColumns.CONTENT) : ""; if (mIsCreate || !mDataContent.equals(dataContent)) { mDiffDataValues.put(DataColumns.CONTENT, dataContent); } mDataContent = dataContent; - + long dataContentData1 = js.has(DataColumns.DATA1) ? js.getLong(DataColumns.DATA1) : 0; if (mIsCreate || mDataContentData1 != dataContentData1) { mDiffDataValues.put(DataColumns.DATA1, dataContentData1); } mDataContentData1 = dataContentData1; - + String dataContentData3 = js.has(DataColumns.DATA3) ? js.getString(DataColumns.DATA3) : ""; if (mIsCreate || !mDataContentData3.equals(dataContentData3)) { mDiffDataValues.put(DataColumns.DATA3, dataContentData3); } mDataContentData3 = dataContentData3; } - + + + /* + * 功能描述：获取共享的数据内容，并提供异常抛出与处理机制 + * 参数注解： + * Made By CuiCan + */ public JSONObject getContent() throws JSONException { if (mIsCreate) { Log.e(TAG, "it seems that we haven't created this in database yet"); return null; } + //创建JSONObject对象。并将相关数据放入其中，并返回。 JSONObject js = new JSONObject(); js.put(DataColumns.ID, mDataId); js.put(DataColumns.MIME_TYPE, mDataMimeType); @@ -143,14 +183,19 @@ public class SqlData { js.put(DataColumns.DATA3, mDataContentData3); return js; } - + + /* + * 功能描述：commit函数用于把当前造作所做的修改保存到数据库 + * 参数注解： + * Made By CuiCan + */ public void commit(long noteId, boolean validateVersion, long version) { - + if (mIsCreate) { if (mDataId == INVALID_ID && mDiffDataValues.containsKey(DataColumns.ID)) { mDiffDataValues.remove(DataColumns.ID); } - + mDiffDataValues.put(DataColumns.NOTE_ID, noteId); Uri uri = mContentResolver.insert(Notes.CONTENT_DATA_URI, mDiffDataValues); try { @@ -178,12 +223,18 @@ public class SqlData { } } } - + mDiffDataValues.clear(); mIsCreate = false; } - + + /* + * 功能描述：获取当前id + * 实现过程： + * 参数注解： + * Made By CuiCan + */ public long getId() { return mDataId; } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/gtask/data/SqlNote.java b/src/Notes-master/src/net/micode/notes/gtask/data/SqlNote.java index 79a4095..9dc30c5 100644 --- a/src/Notes-master/src/net/micode/notes/gtask/data/SqlNote.java +++ b/src/Notes-master/src/net/micode/notes/gtask/data/SqlNote.java @@ -14,35 +14,29 @@ * limitations under the License. */ +/* + * Description：用于支持小米便签最底层的数据库相关操作，和sqldata的关系上是父集关系，即note是data的子父集。 + * 和SqlData相比，SqlNote算是真正意义上的数据了。 + */ + package net.micode.notes.gtask.data; - -import android.appwidget.AppWidgetManager; -import android.content.ContentResolver; -import android.content.ContentValues; -import android.content.Context; -import android.database.Cursor; -import android.net.Uri; -import android.util.Log; - -import net.micode.notes.data.Notes; -import net.micode.notes.data.Notes.DataColumns; -import net.micode.notes.data.Notes.NoteColumns; -import net.micode.notes.gtask.exception.ActionFailureException; -import net.micode.notes.tool.GTaskStringUtils; -import net.micode.notes.tool.ResourceParser; - -import org.json.JSONArray; -import org.json.JSONException; -import org.json.JSONObject; - -import java.util.ArrayList; - - +/* + * 功能描述： + * 实现过程： + * 参数注解： + * Made By CuiCan + */ + public class SqlNote { + /* + * 功能描述：得到类的简写名称存入字符串TAG中 + * 实现过程：调用getSimpleName ()函数 + * Made By CuiCan + */ private static final String TAG = SqlNote.class.getSimpleName(); - + private static final int INVALID_ID = -99999; - + // 集合了interface NoteColumns中所有SF常量（17个） public static final String[] PROJECTION_NOTE = new String[] { NoteColumns.ID, NoteColumns.ALERTED_DATE, NoteColumns.BG_COLOR_ID, NoteColumns.CREATED_DATE, NoteColumns.HAS_ATTACHMENT, NoteColumns.MODIFIED_DATE, @@ -51,77 +45,86 @@ public class SqlNote { NoteColumns.LOCAL_MODIFIED, NoteColumns.ORIGIN_PARENT_ID, NoteColumns.GTASK_ID, NoteColumns.VERSION }; - + + //以下设置17个列的编号 public static final int ID_COLUMN = 0; - + public static final int ALERTED_DATE_COLUMN = 1; - + public static final int BG_COLOR_ID_COLUMN = 2; - + public static final int CREATED_DATE_COLUMN = 3; - + public static final int HAS_ATTACHMENT_COLUMN = 4; - + public static final int MODIFIED_DATE_COLUMN = 5; - + public static final int NOTES_COUNT_COLUMN = 6; - + public static final int PARENT_ID_COLUMN = 7; - + public static final int SNIPPET_COLUMN = 8; - + public static final int TYPE_COLUMN = 9; - + public static final int WIDGET_ID_COLUMN = 10; - + public static final int WIDGET_TYPE_COLUMN = 11; - + public static final int SYNC_ID_COLUMN = 12; - + public static final int LOCAL_MODIFIED_COLUMN = 13; - + public static final int ORIGIN_PARENT_ID_COLUMN = 14; - + public static final int GTASK_ID_COLUMN = 15; - + public static final int VERSION_COLUMN = 16; - + + //一下定义了17个内部的变量，其中12个可以由content中获得，5个需要初始化为0或者new private Context mContext; - + private ContentResolver mContentResolver; - + private boolean mIsCreate; - + private long mId; - + private long mAlertDate; - + private int mBgColorId; - + private long mCreatedDate; - + private int mHasAttachment; - + private long mModifiedDate; - + private long mParentId; - + private String mSnippet; - + private int mType; - + private int mWidgetId; - + private int mWidgetType; - + private long mOriginParent; - + private long mVersion; - + private ContentValues mDiffNoteValues; - + private ArrayList mDataList; - + + /* + * 功能描述：构造函数 + * 参数注解： mIsCreate用于标示构造方式 + * 参数注解： + * Made By CuiCan + */ + //构造函数只有context，对所有的变量进行初始化 public SqlNote(Context context) { mContext = context; mContentResolver = context.getContentResolver(); @@ -129,9 +132,9 @@ public class SqlNote { mId = INVALID_ID; mAlertDate = 0; mBgColorId = ResourceParser.getDefaultBgId(context); - mCreatedDate = System.currentTimeMillis(); + mCreatedDate = System.currentTimeMillis();//调用系统函数获得创建时间 mHasAttachment = 0; - mModifiedDate = System.currentTimeMillis(); + mModifiedDate = System.currentTimeMillis();//最后一次修改时间初始化为创建时间 mParentId = 0; mSnippet = ""; mType = Notes.TYPE_NOTE; @@ -142,18 +145,34 @@ public class SqlNote { mDiffNoteValues = new ContentValues(); mDataList = new ArrayList(); } - + + + /* + * 功能描述：构造函数 + * 参数注解： mIsCreate用于标示构造方式 + * 参数注解： + * Made By CuiCan + */ + //构造函数有context和一个数据库的cursor，多数变量通过cursor指向的一条记录直接进行初始化 public SqlNote(Context context, Cursor c) { mContext = context; mContentResolver = context.getContentResolver(); mIsCreate = false; loadFromCursor(c); mDataList = new ArrayList(); + // if (mType == Notes.TYPE_NOTE) loadDataContent(); mDiffNoteValues = new ContentValues(); } - + + + /* + * 功能描述：构造函数 + * 参数注解： mIsCreate用于标示构造方式 + * 参数注解： + * Made By CuiCan + */ public SqlNote(Context context, long id) { mContext = context; mContentResolver = context.getContentResolver(); @@ -163,19 +182,24 @@ public class SqlNote { if (mType == Notes.TYPE_NOTE) loadDataContent(); mDiffNoteValues = new ContentValues(); - + } - + + /* + * 功能描述：通过id从光标处加载数据 + * Made By CuiCan + */ private void loadFromCursor(long id) { Cursor c = null; try { c = mContentResolver.query(Notes.CONTENT_NOTE_URI, PROJECTION_NOTE, "(_id=?)", new String[] { String.valueOf(id) - }, null); + }, null);//通过id获得对应的ContentResolver中的cursor if (c != null) { c.moveToNext(); - loadFromCursor(c); + loadFromCursor(c);//然后加载数据进行初始化，这样函数 + //SqlNote(Context context, long id)与SqlNote(Context context, long id)的实现方式基本相同 } else { Log.w(TAG, "loadFromCursor: cursor = null"); } @@ -184,8 +208,13 @@ public class SqlNote { c.close(); } } - + + /* + * 功能描述：通过游标从光标处加载数据 + * Made By CuiCan + */ private void loadFromCursor(Cursor c) { + //直接从一条记录中的获得以下变量的初始值 mId = c.getLong(ID_COLUMN); mAlertDate = c.getLong(ALERTED_DATE_COLUMN); mBgColorId = c.getInt(BG_COLOR_ID_COLUMN); @@ -199,7 +228,12 @@ public class SqlNote { mWidgetType = c.getInt(WIDGET_TYPE_COLUMN); mVersion = c.getLong(VERSION_COLUMN); } - + + /* + * 功能描述：通过content机制获取共享数据并加载到数据库当前游标处 + * 参数注解： + * Made By CuiCan + */ private void loadDataContent() { Cursor c = null; mDataList.clear(); @@ -225,7 +259,12 @@ public class SqlNote { c.close(); } } - + + /* + * 功能描述：设置通过content机制用于共享的数据信息 + * 参数注解： + * Made By CuiCan + */ public boolean setContent(JSONObject js) { try { JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); @@ -239,7 +278,7 @@ public class SqlNote { mDiffNoteValues.put(NoteColumns.SNIPPET, snippet); } mSnippet = snippet; - + int type = note.has(NoteColumns.TYPE) ? note.getInt(NoteColumns.TYPE) : Notes.TYPE_NOTE; if (mIsCreate || mType != type) { @@ -253,84 +292,83 @@ public class SqlNote { mDiffNoteValues.put(NoteColumns.ID, id); } mId = id; - + long alertDate = note.has(NoteColumns.ALERTED_DATE) ? note .getLong(NoteColumns.ALERTED_DATE) : 0; if (mIsCreate || mAlertDate != alertDate) { mDiffNoteValues.put(NoteColumns.ALERTED_DATE, alertDate); } mAlertDate = alertDate; - + int bgColorId = note.has(NoteColumns.BG_COLOR_ID) ? note .getInt(NoteColumns.BG_COLOR_ID) : ResourceParser.getDefaultBgId(mContext); if (mIsCreate || mBgColorId != bgColorId) { mDiffNoteValues.put(NoteColumns.BG_COLOR_ID, bgColorId); } mBgColorId = bgColorId; - long createDate = note.has(NoteColumns.CREATED_DATE) ? note .getLong(NoteColumns.CREATED_DATE) : System.currentTimeMillis(); if (mIsCreate || mCreatedDate != createDate) { mDiffNoteValues.put(NoteColumns.CREATED_DATE, createDate); } mCreatedDate = createDate; - + int hasAttachment = note.has(NoteColumns.HAS_ATTACHMENT) ? note .getInt(NoteColumns.HAS_ATTACHMENT) : 0; if (mIsCreate || mHasAttachment != hasAttachment) { mDiffNoteValues.put(NoteColumns.HAS_ATTACHMENT, hasAttachment); } mHasAttachment = hasAttachment; - + long modifiedDate = note.has(NoteColumns.MODIFIED_DATE) ? note .getLong(NoteColumns.MODIFIED_DATE) : System.currentTimeMillis(); if (mIsCreate || mModifiedDate != modifiedDate) { mDiffNoteValues.put(NoteColumns.MODIFIED_DATE, modifiedDate); } mModifiedDate = modifiedDate; - + long parentId = note.has(NoteColumns.PARENT_ID) ? note .getLong(NoteColumns.PARENT_ID) : 0; if (mIsCreate || mParentId != parentId) { mDiffNoteValues.put(NoteColumns.PARENT_ID, parentId); } mParentId = parentId; - + String snippet = note.has(NoteColumns.SNIPPET) ? note .getString(NoteColumns.SNIPPET) : ""; if (mIsCreate || !mSnippet.equals(snippet)) { mDiffNoteValues.put(NoteColumns.SNIPPET, snippet); } mSnippet = snippet; - + int type = note.has(NoteColumns.TYPE) ? note.getInt(NoteColumns.TYPE) : Notes.TYPE_NOTE; if (mIsCreate || mType != type) { mDiffNoteValues.put(NoteColumns.TYPE, type); } mType = type; - + int widgetId = note.has(NoteColumns.WIDGET_ID) ? note.getInt(NoteColumns.WIDGET_ID) : AppWidgetManager.INVALID_APPWIDGET_ID; if (mIsCreate || mWidgetId != widgetId) { mDiffNoteValues.put(NoteColumns.WIDGET_ID, widgetId); } mWidgetId = widgetId; - + int widgetType = note.has(NoteColumns.WIDGET_TYPE) ? note .getInt(NoteColumns.WIDGET_TYPE) : Notes.TYPE_WIDGET_INVALIDE; if (mIsCreate || mWidgetType != widgetType) { mDiffNoteValues.put(NoteColumns.WIDGET_TYPE, widgetType); } mWidgetType = widgetType; - + long originParent = note.has(NoteColumns.ORIGIN_PARENT_ID) ? note .getLong(NoteColumns.ORIGIN_PARENT_ID) : 0; if (mIsCreate || mOriginParent != originParent) { mDiffNoteValues.put(NoteColumns.ORIGIN_PARENT_ID, originParent); } mOriginParent = originParent; - + for (int i = 0; i < dataArray.length(); i++) { JSONObject data = dataArray.getJSONObject(i); SqlData sqlData = null; @@ -342,12 +380,12 @@ public class SqlNote { } } } - + if (sqlData == null) { sqlData = new SqlData(mContext); mDataList.add(sqlData); } - + sqlData.setContent(data); } } @@ -358,18 +396,23 @@ public class SqlNote { } return true; } - + + /* + * 功能描述：获取content机制提供的数据并加载到note中 + * 参数注解： + * Made By CuiCan + */ public JSONObject getContent() { try { JSONObject js = new JSONObject(); - + if (mIsCreate) { Log.e(TAG, "it seems that we haven't created this in database yet"); return null; } - + JSONObject note = new JSONObject(); - if (mType == Notes.TYPE_NOTE) { + if (mType == Notes.TYPE_NOTE) {//类型为note时 note.put(NoteColumns.ID, mId); note.put(NoteColumns.ALERTED_DATE, mAlertDate); note.put(NoteColumns.BG_COLOR_ID, mBgColorId); @@ -383,7 +426,7 @@ public class SqlNote { note.put(NoteColumns.WIDGET_TYPE, mWidgetType); note.put(NoteColumns.ORIGIN_PARENT_ID, mOriginParent); js.put(GTaskStringUtils.META_HEAD_NOTE, note); - + JSONArray dataArray = new JSONArray(); for (SqlData sqlData : mDataList) { JSONObject data = sqlData.getContent(); @@ -392,13 +435,13 @@ public class SqlNote { } } js.put(GTaskStringUtils.META_HEAD_DATA, dataArray); - } else if (mType == Notes.TYPE_FOLDER || mType == Notes.TYPE_SYSTEM) { + } else if (mType == Notes.TYPE_FOLDER || mType == Notes.TYPE_SYSTEM) {//类型为文件夹或者 note.put(NoteColumns.ID, mId); note.put(NoteColumns.TYPE, mType); note.put(NoteColumns.SNIPPET, mSnippet); js.put(GTaskStringUtils.META_HEAD_NOTE, note); } - + return js; } catch (JSONException e) { Log.e(TAG, e.toString()); @@ -406,46 +449,91 @@ public class SqlNote { } return null; } - + + /* + * 功能描述：给当前id设置父id + * 参数注解： + * Made By CuiCan + */ public void setParentId(long id) { mParentId = id; mDiffNoteValues.put(NoteColumns.PARENT_ID, id); } - + + /* + * 功能描述：给当前id设置Gtaskid + * 参数注解： + * Made By CuiCan + */ public void setGtaskId(String gid) { mDiffNoteValues.put(NoteColumns.GTASK_ID, gid); } - + + /* + * 功能描述：给当前id设置同步id + * 参数注解： + * Made By CuiCan + */ public void setSyncId(long syncId) { mDiffNoteValues.put(NoteColumns.SYNC_ID, syncId); } - + + /* + * 功能描述：初始化本地修改，即撤销所有当前修改 + * 参数注解： + * Made By CuiCan + */ public void resetLocalModified() { mDiffNoteValues.put(NoteColumns.LOCAL_MODIFIED, 0); } - + + /* + * 功能描述：获得当前id + * 参数注解： + * Made By CuiCan + */ public long getId() { return mId; } - + + /* + * 功能描述：获得当前id的父id + * 参数注解： + * Made By CuiCan + */ public long getParentId() { return mParentId; } - + + /* + * 功能描述：获取小片段即用于显示的部分便签内容 + * 参数注解： + * Made By CuiCan + */ public String getSnippet() { return mSnippet; } - + + /* + * 功能描述：判断是否为便签类型 + * 参数注解： + * Made By CuiCan + */ public boolean isNoteType() { return mType == Notes.TYPE_NOTE; } - + + /* + * 功能描述：commit函数用于把当前造作所做的修改保存到数据库 + * 参数注解： + * Made By CuiCan + */ public void commit(boolean validateVersion) { if (mIsCreate) { if (mId == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) { mDiffNoteValues.remove(NoteColumns.ID); } - + Uri uri = mContentResolver.insert(Notes.CONTENT_NOTE_URI, mDiffNoteValues); try { mId = Long.valueOf(uri.getPathSegments().get(1)); @@ -456,9 +544,9 @@ public class SqlNote { if (mId == 0) { throw new IllegalStateException("Create thread id failed"); } - + if (mType == Notes.TYPE_NOTE) { - for (SqlData sqlData : mDataList) { + for (SqlData sqlData : mDataList) {//直接使用sqldata中的实现 sqlData.commit(mId, false, -1); } } @@ -470,7 +558,7 @@ public class SqlNote { if (mDiffNoteValues.size() > 0) { mVersion ++; int result = 0; - if (!validateVersion) { + if (!validateVersion) {//构造字符串 result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "(" + NoteColumns.ID + "=?)", new String[] { String.valueOf(mId) @@ -486,20 +574,20 @@ public class SqlNote { Log.w(TAG, "there is no update. maybe user updates note when syncing"); } } - + if (mType == Notes.TYPE_NOTE) { for (SqlData sqlData : mDataList) { sqlData.commit(mId, validateVersion, mVersion); } } } - + // refresh local info loadFromCursor(mId); if (mType == Notes.TYPE_NOTE) loadDataContent(); - + mDiffNoteValues.clear(); mIsCreate = false; } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/gtask/data/Task.java b/src/Notes-master/src/net/micode/notes/gtask/data/Task.java index 6a19454..76ad5a4 100644 --- a/src/Notes-master/src/net/micode/notes/gtask/data/Task.java +++ b/src/Notes-master/src/net/micode/notes/gtask/data/Task.java @@ -15,59 +15,43 @@ */ package net.micode.notes.gtask.data; - -import android.database.Cursor; -import android.text.TextUtils; -import android.util.Log; - -import net.micode.notes.data.Notes; -import net.micode.notes.data.Notes.DataColumns; -import net.micode.notes.data.Notes.DataConstants; -import net.micode.notes.data.Notes.NoteColumns; -import net.micode.notes.gtask.exception.ActionFailureException; -import net.micode.notes.tool.GTaskStringUtils; - -import org.json.JSONArray; -import org.json.JSONException; -import org.json.JSONObject; - - + public class Task extends Node { private static final String TAG = Task.class.getSimpleName(); - - private boolean mCompleted; - + + private boolean mCompleted;//是否完成 + private String mNotes; - - private JSONObject mMetaInfo; - - private Task mPriorSibling; - - private TaskList mParent; - + + private JSONObject mMetaInfo;//将在实例中存储数据的类型 + + private Task mPriorSibling;//对应的优先兄弟Task的指针（待完善） + + private TaskList mParent;//所在的任务列表的指针 + public Task() { super(); mCompleted = false; mNotes = null; - mPriorSibling = null; - mParent = null; + mPriorSibling = null;//TaskList中当前Task前面的Task的指针 + mParent = null;//当前Task所在的TaskList mMetaInfo = null; } - + public JSONObject getCreateAction(int actionId) { JSONObject js = new JSONObject(); - + try { // action_type js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE); - + // action_id js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); - + // index js.put(GTaskStringUtils.GTASK_JSON_INDEX, mParent.getChildTaskIndex(this)); - + // entity_delta JSONObject entity = new JSONObject(); entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName()); @@ -78,45 +62,49 @@ public class Task extends Node { entity.put(GTaskStringUtils.GTASK_JSON_NOTES, getNotes()); } js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity); - + // parent_id + if (mParent!= null) { js.put(GTaskStringUtils.GTASK_JSON_PARENT_ID, mParent.getGid()); - + } + // dest_parent_type js.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT_TYPE, GTaskStringUtils.GTASK_JSON_TYPE_GROUP); - + // list_id + if (mParent!= null) { js.put(GTaskStringUtils.GTASK_JSON_LIST_ID, mParent.getGid()); - + } + // prior_sibling_id if (mPriorSibling != null) { js.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, mPriorSibling.getGid()); } - + } catch (JSONException e) { Log.e(TAG, e.toString()); e.printStackTrace(); throw new ActionFailureException("fail to generate task-create jsonobject"); } - + return js; } - + public JSONObject getUpdateAction(int actionId) { JSONObject js = new JSONObject(); - + try { // action_type js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE); - + // action_id js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); - + // id js.put(GTaskStringUtils.GTASK_JSON_ID, getGid()); - + // entity_delta JSONObject entity = new JSONObject(); entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName()); @@ -125,16 +113,16 @@ public class Task extends Node { } entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted()); js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity); - + } catch (JSONException e) { Log.e(TAG, e.toString()); e.printStackTrace(); throw new ActionFailureException("fail to generate task-update jsonobject"); } - + return js; } - + public void setContentByRemoteJSON(JSONObject js) { if (js != null) { try { @@ -142,27 +130,27 @@ public class Task extends Node { if (js.has(GTaskStringUtils.GTASK_JSON_ID)) { setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID)); } - + // last_modified if (js.has(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)) { setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)); } - + // name if (js.has(GTaskStringUtils.GTASK_JSON_NAME)) { setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME)); } - + // notes if (js.has(GTaskStringUtils.GTASK_JSON_NOTES)) { setNotes(js.getString(GTaskStringUtils.GTASK_JSON_NOTES)); } - + // deleted if (js.has(GTaskStringUtils.GTASK_JSON_DELETED)) { setDeleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_DELETED)); } - + // completed if (js.has(GTaskStringUtils.GTASK_JSON_COMPLETED)) { setCompleted(js.getBoolean(GTaskStringUtils.GTASK_JSON_COMPLETED)); @@ -174,22 +162,22 @@ public class Task extends Node { } } } - - public void setContentByLocalJSON(JSONObject js) { + + public void setContentByLocalJSON(JSONObject js) { //��metadata����ʵʩ if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE) || !js.has(GTaskStringUtils.META_HEAD_DATA)) { Log.w(TAG, "setContentByLocalJSON: nothing is avaiable"); } - + try { JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA); - + if (note.getInt(NoteColumns.TYPE) != Notes.TYPE_NOTE) { - Log.e(TAG, "invalid type"); + Log.e(TAG, "invalid type"); return; } - + for (int i = 0; i < dataArray.length(); i++) { JSONObject data = dataArray.getJSONObject(i); if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) { @@ -197,13 +185,13 @@ public class Task extends Node { break; } } - + } catch (JSONException e) { Log.e(TAG, e.toString()); e.printStackTrace(); } } - + public JSONObject getLocalJSONFromContent() { String name = getName(); try { @@ -213,7 +201,7 @@ public class Task extends Node { Log.w(TAG, "the note seems to be an empty one"); return null; } - + JSONObject js = new JSONObject(); JSONObject note = new JSONObject(); JSONArray dataArray = new JSONArray(); @@ -228,7 +216,7 @@ public class Task extends Node { // synced task JSONObject note = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); JSONArray dataArray = mMetaInfo.getJSONArray(GTaskStringUtils.META_HEAD_DATA); - + for (int i = 0; i < dataArray.length(); i++) { JSONObject data = dataArray.getJSONObject(i); if (TextUtils.equals(data.getString(DataColumns.MIME_TYPE), DataConstants.NOTE)) { @@ -236,7 +224,7 @@ public class Task extends Node { break; } } - + note.put(NoteColumns.TYPE, Notes.TYPE_NOTE); return mMetaInfo; } @@ -246,7 +234,7 @@ public class Task extends Node { return null; } } - + public void setMetaInfo(MetaData metaData) { if (metaData != null && metaData.getNotes() != null) { try { @@ -257,30 +245,30 @@ public class Task extends Node { } } } - + public int getSyncAction(Cursor c) { try { JSONObject noteInfo = null; if (mMetaInfo != null && mMetaInfo.has(GTaskStringUtils.META_HEAD_NOTE)) { noteInfo = mMetaInfo.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); } - + if (noteInfo == null) { Log.w(TAG, "it seems that note meta has been deleted"); return SYNC_ACTION_UPDATE_REMOTE; } - + if (!noteInfo.has(NoteColumns.ID)) { Log.w(TAG, "remote note id seems to be deleted"); return SYNC_ACTION_UPDATE_LOCAL; } - + // validate the note id now if (c.getLong(SqlNote.ID_COLUMN) != noteInfo.getLong(NoteColumns.ID)) { Log.w(TAG, "note id doesn't match"); return SYNC_ACTION_UPDATE_LOCAL; } - + if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) { // there is no local update if (c.getLong(SqlNote.SYNC_ID_COLUMN) == getLastModified()) { @@ -307,45 +295,45 @@ public class Task extends Node { Log.e(TAG, e.toString()); e.printStackTrace(); } - + return SYNC_ACTION_ERROR; } - + public boolean isWorthSaving() { return mMetaInfo != null || (getName() != null && getName().trim().length() > 0) || (getNotes() != null && getNotes().trim().length() > 0); } - + public void setCompleted(boolean completed) { this.mCompleted = completed; } - + public void setNotes(String notes) { this.mNotes = notes; } - + public void setPriorSibling(Task priorSibling) { this.mPriorSibling = priorSibling; } - + public void setParent(TaskList parent) { this.mParent = parent; } - + public boolean getCompleted() { return this.mCompleted; } - + public String getNotes() { return this.mNotes; } - + public Task getPriorSibling() { return this.mPriorSibling; } - + public TaskList getParent() { return this.mParent; } - -} + +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/gtask/data/TaskList.java b/src/Notes-master/src/net/micode/notes/gtask/data/TaskList.java index 4ea21c5..aa27ff0 100644 --- a/src/Notes-master/src/net/micode/notes/gtask/data/TaskList.java +++ b/src/Notes-master/src/net/micode/notes/gtask/data/TaskList.java @@ -15,94 +15,88 @@ */ package net.micode.notes.gtask.data; - -import android.database.Cursor; -import android.util.Log; - -import net.micode.notes.data.Notes; -import net.micode.notes.data.Notes.NoteColumns; -import net.micode.notes.gtask.exception.ActionFailureException; -import net.micode.notes.tool.GTaskStringUtils; - -import org.json.JSONException; -import org.json.JSONObject; - -import java.util.ArrayList; - - + public class TaskList extends Node { - private static final String TAG = TaskList.class.getSimpleName(); - - private int mIndex; - - private ArrayList mChildren; - + private static final String TAG = TaskList.class.getSimpleName();//tag标记 + + private int mIndex;//当前TaskList的指针 + + private ArrayList mChildren;//类中主要的保存数据的单元，用来实现一个以Task为元素的ArrayList + public TaskList() { super(); mChildren = new ArrayList(); mIndex = 1; } - + + /* (non-Javadoc) + * @see net.micode.notes.gtask.data.Node#getCreateAction(int) + * 生成并返回一个包含了一定数据的JSONObject实体 + */ public JSONObject getCreateAction(int actionId) { JSONObject js = new JSONObject(); - + try { // action_type js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, GTaskStringUtils.GTASK_JSON_ACTION_TYPE_CREATE); - + // action_id js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); - + // index js.put(GTaskStringUtils.GTASK_JSON_INDEX, mIndex); - + // entity_delta - JSONObject entity = new JSONObject(); + JSONObject entity = new JSONObject();//entity实体 entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName()); entity.put(GTaskStringUtils.GTASK_JSON_CREATOR_ID, "null"); entity.put(GTaskStringUtils.GTASK_JSON_ENTITY_TYPE, GTaskStringUtils.GTASK_JSON_TYPE_GROUP); js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity); - + } catch (JSONException e) { Log.e(TAG, e.toString()); e.printStackTrace(); throw new ActionFailureException("fail to generate tasklist-create jsonobject"); } - + return js; } - + + /* (non-Javadoc) + * @see net.micode.notes.gtask.data.Node#getUpdateAction(int) + * 生成并返回一个包含了一定数据的JSONObject实体 + */ public JSONObject getUpdateAction(int actionId) { JSONObject js = new JSONObject(); - + try { // action_type js.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, GTaskStringUtils.GTASK_JSON_ACTION_TYPE_UPDATE); - + // action_id js.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, actionId); - + // id js.put(GTaskStringUtils.GTASK_JSON_ID, getGid()); - + // entity_delta JSONObject entity = new JSONObject(); entity.put(GTaskStringUtils.GTASK_JSON_NAME, getName()); entity.put(GTaskStringUtils.GTASK_JSON_DELETED, getDeleted()); js.put(GTaskStringUtils.GTASK_JSON_ENTITY_DELTA, entity); - + } catch (JSONException e) { Log.e(TAG, e.toString()); e.printStackTrace(); throw new ActionFailureException("fail to generate tasklist-update jsonobject"); } - + return js; } - + public void setContentByRemoteJSON(JSONObject js) { if (js != null) { try { @@ -110,17 +104,17 @@ public class TaskList extends Node { if (js.has(GTaskStringUtils.GTASK_JSON_ID)) { setGid(js.getString(GTaskStringUtils.GTASK_JSON_ID)); } - + // last_modified if (js.has(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)) { setLastModified(js.getLong(GTaskStringUtils.GTASK_JSON_LAST_MODIFIED)); } - + // name if (js.has(GTaskStringUtils.GTASK_JSON_NAME)) { setName(js.getString(GTaskStringUtils.GTASK_JSON_NAME)); } - + } catch (JSONException e) { Log.e(TAG, e.toString()); e.printStackTrace(); @@ -128,15 +122,15 @@ public class TaskList extends Node { } } } - + public void setContentByLocalJSON(JSONObject js) { if (js == null || !js.has(GTaskStringUtils.META_HEAD_NOTE)) { Log.w(TAG, "setContentByLocalJSON: nothing is avaiable"); } - + try { JSONObject folder = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); - + if (folder.getInt(NoteColumns.TYPE) == Notes.TYPE_FOLDER) { String name = folder.getString(NoteColumns.SNIPPET); setName(GTaskStringUtils.MIUI_FOLDER_PREFFIX + name); @@ -156,12 +150,12 @@ public class TaskList extends Node { e.printStackTrace(); } } - + public JSONObject getLocalJSONFromContent() { try { JSONObject js = new JSONObject(); JSONObject folder = new JSONObject(); - + String folderName = getName(); if (getName().startsWith(GTaskStringUtils.MIUI_FOLDER_PREFFIX)) folderName = folderName.substring(GTaskStringUtils.MIUI_FOLDER_PREFFIX.length(), @@ -172,9 +166,9 @@ public class TaskList extends Node { folder.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); else folder.put(NoteColumns.TYPE, Notes.TYPE_FOLDER); - + js.put(GTaskStringUtils.META_HEAD_NOTE, folder); - + return js; } catch (JSONException e) { Log.e(TAG, e.toString()); @@ -182,7 +176,7 @@ public class TaskList extends Node { return null; } } - + public int getSyncAction(Cursor c) { try { if (c.getInt(SqlNote.LOCAL_MODIFIED_COLUMN) == 0) { @@ -212,14 +206,23 @@ public class TaskList extends Node { Log.e(TAG, e.toString()); e.printStackTrace(); } - + return SYNC_ACTION_ERROR; } - + + /** + * @return + * 功能：获得TaskList的大小，即mChildren的大小 + */ public int getChildTaskCount() { return mChildren.size(); } - + + /** + * @param task + * @return 返回值为是否成功添加任务。 + * 功能：在当前任务表末尾添加新的任务。 + */ public boolean addChildTask(Task task) { boolean ret = false; if (task != null && !mChildren.contains(task)) { @@ -229,21 +232,29 @@ public class TaskList extends Node { task.setPriorSibling(mChildren.isEmpty() ? null : mChildren .get(mChildren.size() - 1)); task.setParent(this); + //注意：每一次ArrayList的变化都要紧跟相关Task中PriorSibling的更改 + //，接下来几个函数都有相关操作 } } return ret; } - + + /** + * @param task + * @param index + * @return + * 功能：在当前任务表的指定位置添加新的任务。 + */ public boolean addChildTask(Task task, int index) { if (index < 0 || index > mChildren.size()) { Log.e(TAG, "add child task: invalid index"); return false; } - + int pos = mChildren.indexOf(task); if (task != null && pos == -1) { mChildren.add(index, task); - + // update the task list Task preTask = null; Task afterTask = null; @@ -251,26 +262,31 @@ public class TaskList extends Node { preTask = mChildren.get(index - 1); if (index != mChildren.size() - 1) afterTask = mChildren.get(index + 1); - + task.setPriorSibling(preTask); if (afterTask != null) afterTask.setPriorSibling(task); } - + return true; } - + + /** + * @param task + * @return 返回删除是否成功 + * 功能：删除TaskList中的一个Task + */ public boolean removeChildTask(Task task) { boolean ret = false; int index = mChildren.indexOf(task); if (index != -1) { ret = mChildren.remove(task); - + if (ret) { // reset prior sibling and parent task.setPriorSibling(null); task.setParent(null); - + // update the task list if (index != mChildren.size()) { mChildren.get(index).setPriorSibling( @@ -280,25 +296,37 @@ public class TaskList extends Node { } return ret; } - + + /** + * @param task + * @param index + * @return + * 功能：将当前TaskList中含有的某个Task移到index位置 + */ public boolean moveChildTask(Task task, int index) { - + if (index < 0 || index >= mChildren.size()) { Log.e(TAG, "move child task: invalid index"); return false; } - + int pos = mChildren.indexOf(task); if (pos == -1) { Log.e(TAG, "move child task: the task should in the list"); return false; } - + if (pos == index) return true; return (removeChildTask(task) && addChildTask(task, index)); + //利用已实现好的功能完成当下功能； } - + + /** + * @param gid + * @return返回寻找结果 + * 功能：按gid寻找Task + */ public Task findChildTaskByGid(String gid) { for (int i = 0; i < mChildren.size(); i++) { Task t = mChildren.get(i); @@ -308,11 +336,21 @@ public class TaskList extends Node { } return null; } - + + /** + * @param task + * @return + * 功能：返回指定Task的index + */ public int getChildTaskIndex(Task task) { return mChildren.indexOf(task); } - + + /** + * @param index + * @return + * 功能：返回指定index的Task + */ public Task getChildTaskByIndex(int index) { if (index < 0 || index >= mChildren.size()) { Log.e(TAG, "getTaskByIndex: invalid index"); @@ -320,24 +358,29 @@ public class TaskList extends Node { } return mChildren.get(index); } - + + /** + * @param gid + * @return + * 功能：返回指定gid的Task + */ public Task getChilTaskByGid(String gid) { - for (Task task : mChildren) { + for (Task task : mChildren) {//一种常见的ArrayList的遍历方法（四种，见精读笔记） if (task.getGid().equals(gid)) return task; } return null; } - + public ArrayList getChildTaskList() { return this.mChildren; } - + public void setIndex(int index) { this.mIndex = index; } - + public int getIndex() { return this.mIndex; } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/gtask/exception/ActionFailureException.java b/src/Notes-master/src/net/micode/notes/gtask/exception/ActionFailureException.java index 15504be..47aaba5 100644 --- a/src/Notes-master/src/net/micode/notes/gtask/exception/ActionFailureException.java +++ b/src/Notes-master/src/net/micode/notes/gtask/exception/ActionFailureException.java @@ -14,20 +14,35 @@ * limitations under the License. */ +/* + * Description：支持小米便签运行过程中的运行异常处理。 + */ + package net.micode.notes.gtask.exception; - + public class ActionFailureException extends RuntimeException { private static final long serialVersionUID = 4425249765923293627L; - + /* + * serialVersionUID相当于java类的身份证。主要用于版本控制。 + * serialVersionUID作用是序列化时保持版本的兼容性，即在版本升级时反序列化仍保持对象的唯一性。 + * Made By Cuican + */ + public ActionFailureException() { super(); } - + /* + * 在JAVA类中使用super来引用父类的成分，用this来引用当前对象. + * 如果一个类从另外一个类继承，我们new这个子类的实例对象的时候，这个子类对象里面会有一个父类对象。 + * 怎么去引用里面的父类对象呢？使用super来引用 + * 也就是说，此处super()以及super (paramString)可认为是Exception ()和Exception (paramString) + * Made By Cuican + */ public ActionFailureException(String paramString) { super(paramString); } - + public ActionFailureException(String paramString, Throwable paramThrowable) { super(paramString, paramThrowable); } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/gtask/exception/NetworkFailureException.java b/src/Notes-master/src/net/micode/notes/gtask/exception/NetworkFailureException.java index b08cfb1..91d1ade 100644 --- a/src/Notes-master/src/net/micode/notes/gtask/exception/NetworkFailureException.java +++ b/src/Notes-master/src/net/micode/notes/gtask/exception/NetworkFailureException.java @@ -14,20 +14,36 @@ * limitations under the License. */ +/* + * Description：支持小米便签运行过程中的网络异常处理。 + */ + package net.micode.notes.gtask.exception; - + public class NetworkFailureException extends Exception { private static final long serialVersionUID = 2107610287180234136L; - + /* + * serialVersionUID相当于java类的身份证。主要用于版本控制。 + * serialVersionUID作用是序列化时保持版本的兼容性，即在版本升级时反序列化仍保持对象的唯一性。 + * Made By Cuican + */ + public NetworkFailureException() { super(); } - + + /* + * 在JAVA类中使用super来引用父类的成分，用this来引用当前对象. + * 如果一个类从另外一个类继承，我们new这个子类的实例对象的时候，这个子类对象里面会有一个父类对象。 + * 怎么去引用里面的父类对象呢？使用super来引用 + * 也就是说，此处super()以及super (paramString)可认为是Exception ()和Exception (paramString) + * Made By Cuican + */ public NetworkFailureException(String paramString) { super(paramString); } - + public NetworkFailureException(String paramString, Throwable paramThrowable) { super(paramString, paramThrowable); } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/gtask/remote/GTaskASyncTask.java b/src/Notes-master/src/net/micode/notes/gtask/remote/GTaskASyncTask.java index b3b61e7..681217d 100644 --- a/src/Notes-master/src/net/micode/notes/gtask/remote/GTaskASyncTask.java +++ b/src/Notes-master/src/net/micode/notes/gtask/remote/GTaskASyncTask.java @@ -16,35 +16,31 @@ */ package net.micode.notes.gtask.remote; - -import android.app.Notification; -import android.app.NotificationManager; -import android.app.PendingIntent; -import android.content.Context; -import android.content.Intent; -import android.os.AsyncTask; - -import net.micode.notes.R; -import net.micode.notes.ui.NotesListActivity; -import net.micode.notes.ui.NotesPreferenceActivity; - - + +/*异步操作类，实现GTask的异步操作过程 + * 主要方法： + * private void showNotification(int tickerId, String content) 向用户提示当前同步的状态，是一个用于交互的方法 + * protected Integer doInBackground(Void... unused) 此方法在后台线程执行，完成任务的主要工作，通常需要较长的时间 + * protected void onProgressUpdate(String... progress) 可以使用进度条增加用户体验度。 此方法在主线程执行，用于显示任务执行的进度。 + * protected void onPostExecute(Integer result) 相当于Handler 处理UI的方式，在这里面可以使用在doInBackground 得到的结果处理操作UI + */ public class GTaskASyncTask extends AsyncTask { - + + private static int GTASK_SYNC_NOTIFICATION_ID = 5234235; - + public interface OnCompleteListener { void onComplete(); } - + private Context mContext; - + private NotificationManager mNotifiManager; - + private GTaskManager mTaskManager; - + private OnCompleteListener mOnCompleteListener; - + public GTaskASyncTask(Context context, OnCompleteListener listener) { mContext = context; mOnCompleteListener = listener; @@ -52,57 +48,57 @@ public class GTaskASyncTask extends AsyncTask { .getSystemService(Context.NOTIFICATION_SERVICE); mTaskManager = GTaskManager.getInstance(); } - + public void cancelSync() { mTaskManager.cancelSync(); } - - public void publishProgess(String message) { + + public void publishProgess(String message) { // 发布进度单位，系统将会调用onProgressUpdate()方法更新这些值 publishProgress(new String[] { message }); } - + private void showNotification(int tickerId, String content) { Notification notification = new Notification(R.drawable.notification, mContext .getString(tickerId), System.currentTimeMillis()); - notification.defaults = Notification.DEFAULT_LIGHTS; - notification.flags = Notification.FLAG_AUTO_CANCEL; - PendingIntent pendingIntent; + notification.defaults = Notification.DEFAULT_LIGHTS; // 调用系统自带灯光 + notification.flags = Notification.FLAG_AUTO_CANCEL; // 点击清除按钮或点击通知后会自动消失 + PendingIntent pendingIntent; //一个描述了想要启动一个Activity、Broadcast或是Service的意图 if (tickerId != R.string.ticker_success) { pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext, - NotesPreferenceActivity.class), 0); - + NotesPreferenceActivity.class), 0); //如果同步不成功，那么从系统取得一个用于启动一个NotesPreferenceActivity的PendingIntent对象 + } else { pendingIntent = PendingIntent.getActivity(mContext, 0, new Intent(mContext, - NotesListActivity.class), 0); + NotesListActivity.class), 0); //如果同步成功，那么从系统取得一个用于启动一个NotesListActivity的PendingIntent对象 } notification.setLatestEventInfo(mContext, mContext.getString(R.string.app_name), content, pendingIntent); - mNotifiManager.notify(GTASK_SYNC_NOTIFICATION_ID, notification); + mNotifiManager.notify(GTASK_SYNC_NOTIFICATION_ID, notification);//通过NotificationManager对象的notify（）方法来执行一个notification的消息 } - + @Override protected Integer doInBackground(Void... unused) { publishProgess(mContext.getString(R.string.sync_progress_login, NotesPreferenceActivity - .getSyncAccountName(mContext))); - return mTaskManager.sync(mContext, this); + .getSyncAccountName(mContext))); //利用getString,将把 NotesPreferenceActivity.getSyncAccountName(mContext))的字符串内容传进sync_progress_login中 + return mTaskManager.sync(mContext, this); //进行后台同步具体操作 } - + @Override protected void onProgressUpdate(String... progress) { showNotification(R.string.ticker_syncing, progress[0]); - if (mContext instanceof GTaskSyncService) { + if (mContext instanceof GTaskSyncService) { //instanceof 判断mContext是否是GTaskSyncService的实例 ((GTaskSyncService) mContext).sendBroadcast(progress[0]); } } - + @Override - protected void onPostExecute(Integer result) { + protected void onPostExecute(Integer result) { //用于在执行完后台任务后更新UI,显示结果 if (result == GTaskManager.STATE_SUCCESS) { showNotification(R.string.ticker_success, mContext.getString( R.string.success_sync_account, mTaskManager.getSyncAccount())); - NotesPreferenceActivity.setLastSyncTime(mContext, System.currentTimeMillis()); + NotesPreferenceActivity.setLastSyncTime(mContext, System.currentTimeMillis()); //设置最新同步的时间 } else if (result == GTaskManager.STATE_NETWORK_ERROR) { showNotification(R.string.ticker_fail, mContext.getString(R.string.error_sync_network)); } else if (result == GTaskManager.STATE_INTERNAL_ERROR) { @@ -110,14 +106,14 @@ public class GTaskASyncTask extends AsyncTask { } else if (result == GTaskManager.STATE_SYNC_CANCELLED) { showNotification(R.string.ticker_cancel, mContext .getString(R.string.error_sync_cancelled)); - } + } //几种不同情况下的结果显示 if (mOnCompleteListener != null) { - new Thread(new Runnable() { - - public void run() { - mOnCompleteListener.onComplete(); + new Thread(new Runnable() { //这里好像是方法内的一个线程，但是并不太懂什么意思 + + public void run() { //完成后的操作，使用onComplete()将所有值都重新初始化，相当于完成一次操作 + mOnCompleteListener.onComplete(); } }).start(); } } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/gtask/remote/GTaskClient.java b/src/Notes-master/src/net/micode/notes/gtask/remote/GTaskClient.java index c67dfdf..cd0a8d5 100644 --- a/src/Notes-master/src/net/micode/notes/gtask/remote/GTaskClient.java +++ b/src/Notes-master/src/net/micode/notes/gtask/remote/GTaskClient.java @@ -15,81 +15,40 @@ */ package net.micode.notes.gtask.remote; - -import android.accounts.Account; -import android.accounts.AccountManager; -import android.accounts.AccountManagerFuture; -import android.app.Activity; -import android.os.Bundle; -import android.text.TextUtils; -import android.util.Log; - -import net.micode.notes.gtask.data.Node; -import net.micode.notes.gtask.data.Task; -import net.micode.notes.gtask.data.TaskList; -import net.micode.notes.gtask.exception.ActionFailureException; -import net.micode.notes.gtask.exception.NetworkFailureException; -import net.micode.notes.tool.GTaskStringUtils; -import net.micode.notes.ui.NotesPreferenceActivity; - -import org.apache.http.HttpEntity; -import org.apache.http.HttpResponse; -import org.apache.http.client.ClientProtocolException; -import org.apache.http.client.entity.UrlEncodedFormEntity; -import org.apache.http.client.methods.HttpGet; -import org.apache.http.client.methods.HttpPost; -import org.apache.http.cookie.Cookie; -import org.apache.http.impl.client.BasicCookieStore; -import org.apache.http.impl.client.DefaultHttpClient; -import org.apache.http.message.BasicNameValuePair; -import org.apache.http.params.BasicHttpParams; -import org.apache.http.params.HttpConnectionParams; -import org.apache.http.params.HttpParams; -import org.apache.http.params.HttpProtocolParams; -import org.json.JSONArray; -import org.json.JSONException; -import org.json.JSONObject; - -import java.io.BufferedReader; -import java.io.IOException; -import java.io.InputStream; -import java.io.InputStreamReader; -import java.util.LinkedList; -import java.util.List; -import java.util.zip.GZIPInputStream; -import java.util.zip.Inflater; -import java.util.zip.InflaterInputStream; - - + +/* + * 主要功能：实现GTASK的登录操作，进行GTASK任务的创建，创建任务列表，从网络上获取任务和任务列表的内容 + * 主要使用类或技术：accountManager JSONObject HttpParams authToken Gid + */ public class GTaskClient { private static final String TAG = GTaskClient.class.getSimpleName(); - - private static final String GTASK_URL = "https://mail.google.com/tasks/"; - + + private static final String GTASK_URL = "https://mail.google.com/tasks/"; //这个是指定的URL + private static final String GTASK_GET_URL = "https://mail.google.com/tasks/ig"; - + private static final String GTASK_POST_URL = "https://mail.google.com/tasks/r/ig"; - + private static GTaskClient mInstance = null; - + private DefaultHttpClient mHttpClient; - + private String mGetUrl; - + private String mPostUrl; - + private long mClientVersion; - + private boolean mLoggedin; - + private long mLastLoginTime; - + private int mActionId; - + private Account mAccount; - + private JSONArray mUpdateArray; - + private GTaskClient() { mHttpClient = null; mGetUrl = GTASK_GET_URL; @@ -101,81 +60,100 @@ public class GTaskClient { mAccount = null; mUpdateArray = null; } - + + /*用来获取的实例化对象 + * 使用 getInstance() + * 返回mInstance这个实例化对象 + */ public static synchronized GTaskClient getInstance() { if (mInstance == null) { mInstance = new GTaskClient(); } return mInstance; } - + + /*用来实现登录操作的函数，传入的参数是一个Activity + * 设置登录操作限制时间，如果超时则需要重新登录 + * 有两种登录方式，使用用户自己的URL登录或者使用谷歌官方的URL登录 + * 返回true或者false，即最后是否登陆成功 + */ public boolean login(Activity activity) { // we suppose that the cookie would expire after 5 minutes // then we need to re-login + //判断距离最后一次登录操作是否超过5分钟 final long interval = 1000 * 60 * 5; if (mLastLoginTime + interval < System.currentTimeMillis()) { mLoggedin = false; } - - // need to re-login after account switch + + // need to re-login after account switch 重新登录操作 if (mLoggedin && !TextUtils.equals(getSyncAccount().name, NotesPreferenceActivity .getSyncAccountName(activity))) { mLoggedin = false; } - + + //如果没超过时间，则不需要重新登录 if (mLoggedin) { Log.d(TAG, "already logged in"); return true; } - - mLastLoginTime = System.currentTimeMillis(); - String authToken = loginGoogleAccount(activity, false); + + mLastLoginTime = System.currentTimeMillis();//更新最后登录时间，改为系统当前的时间 + String authToken = loginGoogleAccount(activity, false);//判断是否登录到谷歌账户 if (authToken == null) { Log.e(TAG, "login google account failed"); return false; } - + // login with custom domain if necessary - if (!(mAccount.name.toLowerCase().endsWith("gmail.com") || mAccount.name.toLowerCase() + //尝试使用用户自己的域名登录 + if (!(mAccount.name.toLowerCase().endsWith("gmail.com") || mAccount.name.toLowerCase() //将用户账号名改为统一格式（小写）后判断是否为一个谷歌账号地址 .endsWith("googlemail.com"))) { StringBuilder url = new StringBuilder(GTASK_URL).append("a/"); int index = mAccount.name.indexOf('@') + 1; String suffix = mAccount.name.substring(index); url.append(suffix + "/"); - mGetUrl = url.toString() + "ig"; - mPostUrl = url.toString() + "r/ig"; - + mGetUrl = url.toString() + "ig"; //设置用户对应的getUrl + mPostUrl = url.toString() + "r/ig"; //设置用户对应的postUrl + if (tryToLoginGtask(activity, authToken)) { mLoggedin = true; } } - + // try to login with google official url + //如果用户账户无法登录，则使用谷歌官方的URI进行登录 if (!mLoggedin) { - mGetUrl = GTASK_GET_URL; + mGetUrl = GTASK_GET_URL; mPostUrl = GTASK_POST_URL; if (!tryToLoginGtask(activity, authToken)) { return false; } } - + mLoggedin = true; return true; } - + + /*具体实现登录谷歌账户的方法 + * 使用令牌机制 + * 使用AccountManager来管理注册账号 + * 返回值是账号的令牌 + */ private String loginGoogleAccount(Activity activity, boolean invalidateToken) { - String authToken; - AccountManager accountManager = AccountManager.get(activity); - Account[] accounts = accountManager.getAccountsByType("com.google"); - + String authToken; //令牌，是登录操作保证安全性的一个方法 + AccountManager accountManager = AccountManager.get(activity);//AccountManager这个类给用户提供了集中注册账号的接口 + Account[] accounts = accountManager.getAccountsByType("com.google");//获取全部以com.google结尾的account + if (accounts.length == 0) { Log.e(TAG, "there is no available google account"); return null; } - + String accountName = NotesPreferenceActivity.getSyncAccountName(activity); Account account = null; + //遍历获得的accounts信息，寻找已经记录过的账户信息 for (Account a : accounts) { if (a.name.equals(accountName)) { account = a; @@ -188,13 +166,15 @@ public class GTaskClient { Log.e(TAG, "unable to get an account with the same name in the settings"); return null; } - + // get the token now + //获取选中账号的令牌 AccountManagerFuture accountManagerFuture = accountManager.getAuthToken(account, "goanna_mobile", null, activity, null, null); try { Bundle authTokenBundle = accountManagerFuture.getResult(); authToken = authTokenBundle.getString(AccountManager.KEY_AUTHTOKEN); + //如果是invalidateToken，那么需要调用invalidateAuthToken(String, String)方法废除这个无效token if (invalidateToken) { accountManager.invalidateAuthToken("com.google", authToken); loginGoogleAccount(activity, false); @@ -203,20 +183,22 @@ public class GTaskClient { Log.e(TAG, "get auth token failed"); authToken = null; } - + return authToken; } - + + //尝试登陆Gtask，这只是一个预先判断令牌是否是有效以及是否能登上GTask的方法,而不是具体实现登陆的方法 private boolean tryToLoginGtask(Activity activity, String authToken) { - if (!loginGtask(authToken)) { - // maybe the auth token is out of date, now let's invalidate the + if (!loginGtask(authToken)) { + // maybe the auth token is out of authTokedate, now let's invalidate the // token and try again + //删除过一个无效的authToken，申请一个新的后再次尝试登陆 authToken = loginGoogleAccount(activity, true); if (authToken == null) { Log.e(TAG, "login google account failed"); return false; } - + if (!loginGtask(authToken)) { Log.e(TAG, "login gtask failed"); return false; @@ -224,26 +206,28 @@ public class GTaskClient { } return true; } - + + //实现登录GTask的具体操作 private boolean loginGtask(String authToken) { int timeoutConnection = 10000; - int timeoutSocket = 15000; - HttpParams httpParameters = new BasicHttpParams(); - HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection); - HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket); + int timeoutSocket = 15000; //socket是一种通信连接实现数据的交换的端口 + HttpParams httpParameters = new BasicHttpParams(); //实例化一个新的HTTP参数类 + HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);//设置连接超时时间 + HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);//设置设置端口超时时间 mHttpClient = new DefaultHttpClient(httpParameters); - BasicCookieStore localBasicCookieStore = new BasicCookieStore(); + BasicCookieStore localBasicCookieStore = new BasicCookieStore(); //设置本地cookie mHttpClient.setCookieStore(localBasicCookieStore); HttpProtocolParams.setUseExpectContinue(mHttpClient.getParams(), false); - + // login gtask try { - String loginUrl = mGetUrl + "?auth=" + authToken; - HttpGet httpGet = new HttpGet(loginUrl); + String loginUrl = mGetUrl + "?auth=" + authToken; //设置登录的url + HttpGet httpGet = new HttpGet(loginUrl); //通过登录的uri实例化网页上资源的查找 HttpResponse response = null; response = mHttpClient.execute(httpGet); - + // get the cookie now + //获取CookieStore里存放的cookie,看如果存有“GTL(不知道什么意思)”，则说明有验证成功的有效的cookie List cookies = mHttpClient.getCookieStore().getCookies(); boolean hasAuthCookie = false; for (Cookie cookie : cookies) { @@ -254,8 +238,9 @@ public class GTaskClient { if (!hasAuthCookie) { Log.w(TAG, "it seems that there is no auth cookie"); } - + // get the client version + //获取client的内容，具体操作是在返回的Content中截取从_setup(开始到)}中间的字符串内容，也就是gtask_url的内容 String resString = getResponseContent(response.getEntity()); String jsBegin = "_setup("; String jsEnd = ")}"; @@ -276,41 +261,49 @@ public class GTaskClient { Log.e(TAG, "httpget gtask_url failed"); return false; } - + return true; } - + private int getActionId() { return mActionId++; } - + + /*实例化创建一个用于向网络传输数据的对象 + * 使用HttpPost类 + * 返回一个httpPost实例化对象，但里面还没有内容 + */ private HttpPost createHttpPost() { HttpPost httpPost = new HttpPost(mPostUrl); httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8"); httpPost.setHeader("AT", "1"); return httpPost; } - + + /*通过URL获取响应后返回的数据，也就是网络上的数据和资源 + * 使用getContentEncoding()获取网络上的资源和数据 + * 返回值就是获取到的资源 + */ private String getResponseContent(HttpEntity entity) throws IOException { String contentEncoding = null; - if (entity.getContentEncoding() != null) { + if (entity.getContentEncoding() != null) {//通过URL得到HttpEntity对象，如果不为空则使用getContent（）方法创建一个流将数据从网络都过来 contentEncoding = entity.getContentEncoding().getValue(); Log.d(TAG, "encoding: " + contentEncoding); } - + InputStream input = entity.getContent(); - if (contentEncoding != null && contentEncoding.equalsIgnoreCase("gzip")) { + if (contentEncoding != null && contentEncoding.equalsIgnoreCase("gzip")) {//GZIP是使用DEFLATE进行压缩数据的另一个压缩库 input = new GZIPInputStream(entity.getContent()); - } else if (contentEncoding != null && contentEncoding.equalsIgnoreCase("deflate")) { + } else if (contentEncoding != null && contentEncoding.equalsIgnoreCase("deflate")) {//DEFLATE是一个无专利的压缩算法，它可以实现无损数据压缩 Inflater inflater = new Inflater(true); input = new InflaterInputStream(entity.getContent(), inflater); } - + try { InputStreamReader isr = new InputStreamReader(input); - BufferedReader br = new BufferedReader(isr); + BufferedReader br = new BufferedReader(isr);//是一个包装类，它可以包装字符流，将字符流放入缓存里，先把字符读到缓存里，到缓存满了时候，再读入内存，是为了提供读的效率而设计的 StringBuilder sb = new StringBuilder(); - + while (true) { String buff = br.readLine(); if (buff == null) { @@ -322,25 +315,33 @@ public class GTaskClient { input.close(); } } - + + /*通过JSON发送请求 + * 请求的具体内容在json的实例化对象js中然后传入 + * 利用UrlEncodedFormEntity entity和httpPost.setEntity(entity)方法把js中的内容放置到httpPost中 + * 执行请求后使用getResponseContent方法得到返回的数据和资源 + * 将资源再次放入json后返回 + */ private JSONObject postRequest(JSONObject js) throws NetworkFailureException { - if (!mLoggedin) { + if (!mLoggedin) {//未登录 Log.e(TAG, "please login first"); throw new ActionFailureException("not logged in"); } - + + //实例化一个httpPost的对象用来向服务器传输数据，在这里就是发送请求，而请求的内容在js里 HttpPost httpPost = createHttpPost(); try { LinkedList list = new LinkedList(); list.add(new BasicNameValuePair("r", js.toString())); - UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, "UTF-8"); + UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, "UTF-8"); //UrlEncodedFormEntity()的形式比较单一，是普通的键值对 httpPost.setEntity(entity); - + // execute the post + //执行这个请求 HttpResponse response = mHttpClient.execute(httpPost); String jsString = getResponseContent(response.getEntity()); return new JSONObject(jsString); - + } catch (ClientProtocolException e) { Log.e(TAG, e.toString()); e.printStackTrace(); @@ -359,70 +360,84 @@ public class GTaskClient { throw new ActionFailureException("error occurs when posting request"); } } - + + /*创建单个任务 + * 传入参数是一个.gtask.data.Task包里Task类的对象 + * 利用json获取Task里的内容,并且创建相应的jsPost + * 利用postRequest得到任务的返回信息 + * 使用task.setGid设置task的new_ID + */ public void createTask(Task task) throws NetworkFailureException { commitUpdate(); try { JSONObject jsPost = new JSONObject(); JSONArray actionList = new JSONArray(); - + // action_list actionList.put(task.getCreateAction(getActionId())); jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); - + // client_version jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); - + // post JSONObject jsResponse = postRequest(jsPost); JSONObject jsResult = (JSONObject) jsResponse.getJSONArray( GTaskStringUtils.GTASK_JSON_RESULTS).get(0); task.setGid(jsResult.getString(GTaskStringUtils.GTASK_JSON_NEW_ID)); - + } catch (JSONException e) { Log.e(TAG, e.toString()); e.printStackTrace(); throw new ActionFailureException("create task: handing jsonobject failed"); } } - + + /* + * 创建一个任务列表，与createTask几乎一样，区别就是最后设置的是tasklist的gid + */ public void createTaskList(TaskList tasklist) throws NetworkFailureException { commitUpdate(); try { JSONObject jsPost = new JSONObject(); JSONArray actionList = new JSONArray(); - + // action_list actionList.put(tasklist.getCreateAction(getActionId())); jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); - + // client version jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); - + // post JSONObject jsResponse = postRequest(jsPost); JSONObject jsResult = (JSONObject) jsResponse.getJSONArray( GTaskStringUtils.GTASK_JSON_RESULTS).get(0); tasklist.setGid(jsResult.getString(GTaskStringUtils.GTASK_JSON_NEW_ID)); - + } catch (JSONException e) { Log.e(TAG, e.toString()); e.printStackTrace(); throw new ActionFailureException("create tasklist: handing jsonobject failed"); } } - + + /* + * 同步更新操作 + * 使用JSONObject进行数据存储，使用jsPost.put，Put的信息包括UpdateArray和ClientVersion + * 使用postRequest发送这个jspost,进行处理 + */ public void commitUpdate() throws NetworkFailureException { if (mUpdateArray != null) { try { JSONObject jsPost = new JSONObject(); - + // action_list jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, mUpdateArray); - + // client_version jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); - + postRequest(jsPost); mUpdateArray = null; } catch (JSONException e) { @@ -432,7 +447,11 @@ public class GTaskClient { } } } - + + /* + * 添加更新的事项 + * 调用commitUpdate()实现 + */ public void addUpdateNode(Node node) throws NetworkFailureException { if (node != null) { // too many update items may result in an error @@ -440,13 +459,19 @@ public class GTaskClient { if (mUpdateArray != null && mUpdateArray.length() > 10) { commitUpdate(); } - + if (mUpdateArray == null) mUpdateArray = new JSONArray(); mUpdateArray.put(node.getUpdateAction(getActionId())); } } - + + /* + * 移动task,比如讲task移动到不同的task列表中去 + * 通过getGid获取task所属列表的gid + * 通过JSONObject.put(String name, Object value)函数设置移动后的task的相关属性值，从而达到移动的目的 + * 最后还是通过postRequest进行更新后的发送 + */ public void moveTask(Task task, TaskList preParent, TaskList curParent) throws NetworkFailureException { commitUpdate(); @@ -454,7 +479,7 @@ public class GTaskClient { JSONObject jsPost = new JSONObject(); JSONArray actionList = new JSONArray(); JSONObject action = new JSONObject(); - + // action_list action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, GTaskStringUtils.GTASK_JSON_ACTION_TYPE_MOVE); @@ -463,43 +488,50 @@ public class GTaskClient { if (preParent == curParent && task.getPriorSibling() != null) { // put prioring_sibing_id only if moving within the tasklist and // it is not the first one + //设置优先级ID，只有当移动是发生在文件中 action.put(GTaskStringUtils.GTASK_JSON_PRIOR_SIBLING_ID, task.getPriorSibling()); } - action.put(GTaskStringUtils.GTASK_JSON_SOURCE_LIST, preParent.getGid()); - action.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT, curParent.getGid()); + action.put(GTaskStringUtils.GTASK_JSON_SOURCE_LIST, preParent.getGid()); //设置移动前所属列表 + action.put(GTaskStringUtils.GTASK_JSON_DEST_PARENT, curParent.getGid()); //设置当前所属列表 if (preParent != curParent) { // put the dest_list only if moving between tasklists action.put(GTaskStringUtils.GTASK_JSON_DEST_LIST, curParent.getGid()); } actionList.put(action); + //最后将ACTION_LIST加入到jsPost中 jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); - + // client_version jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); - + postRequest(jsPost); - + } catch (JSONException e) { Log.e(TAG, e.toString()); e.printStackTrace(); throw new ActionFailureException("move task: handing jsonobject failed"); } } - + + /* + * 删除操作节点 + * 还是利用JSON + * 删除过后使用postRequest发送删除后的结果 + */ public void deleteNode(Node node) throws NetworkFailureException { commitUpdate(); try { JSONObject jsPost = new JSONObject(); JSONArray actionList = new JSONArray(); - + // action_list node.setDeleted(true); - actionList.put(node.getUpdateAction(getActionId())); + actionList.put(node.getUpdateAction(getActionId())); //这里会获取到删除操作的ID，加入到actionLiast中 jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); - + // client_version jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); - + postRequest(jsPost); mUpdateArray = null; } catch (JSONException e) { @@ -508,19 +540,25 @@ public class GTaskClient { throw new ActionFailureException("delete node: handing jsonobject failed"); } } - + + /* + * 获取任务列表 + * 首先通过GetURI使用getResponseContent从网上获取数据 + * 然后筛选出"_setup("到)}的部分，并且从中获取GTASK_JSON_LISTS的内容返回 + */ public JSONArray getTaskLists() throws NetworkFailureException { if (!mLoggedin) { Log.e(TAG, "please login first"); throw new ActionFailureException("not logged in"); } - + try { HttpGet httpGet = new HttpGet(mGetUrl); HttpResponse response = null; response = mHttpClient.execute(httpGet); - + // get the task list + //筛选工作，把筛选出的字符串放入jsString String resString = getResponseContent(response.getEntity()); String jsBegin = "_setup("; String jsEnd = ")}"; @@ -531,6 +569,7 @@ public class GTaskClient { jsString = resString.substring(begin + jsBegin.length(), end); } JSONObject js = new JSONObject(jsString); + //获取GTASK_JSON_LISTS return js.getJSONObject("t").getJSONArray(GTaskStringUtils.GTASK_JSON_LISTS); } catch (ClientProtocolException e) { Log.e(TAG, e.toString()); @@ -546,26 +585,29 @@ public class GTaskClient { throw new ActionFailureException("get task lists: handing jasonobject failed"); } } - + + /* + * 通过传入的TASKList的gid,从网络上获取相应属于这个任务列表的任务 + */ public JSONArray getTaskList(String listGid) throws NetworkFailureException { commitUpdate(); try { JSONObject jsPost = new JSONObject(); JSONArray actionList = new JSONArray(); JSONObject action = new JSONObject(); - + // action_list action.put(GTaskStringUtils.GTASK_JSON_ACTION_TYPE, GTaskStringUtils.GTASK_JSON_ACTION_TYPE_GETALL); - action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId()); - action.put(GTaskStringUtils.GTASK_JSON_LIST_ID, listGid); + action.put(GTaskStringUtils.GTASK_JSON_ACTION_ID, getActionId()); + action.put(GTaskStringUtils.GTASK_JSON_LIST_ID, listGid); //这里设置为传入的listGid action.put(GTaskStringUtils.GTASK_JSON_GET_DELETED, false); actionList.put(action); jsPost.put(GTaskStringUtils.GTASK_JSON_ACTION_LIST, actionList); - + // client_version jsPost.put(GTaskStringUtils.GTASK_JSON_CLIENT_VERSION, mClientVersion); - + JSONObject jsResponse = postRequest(jsPost); return jsResponse.getJSONArray(GTaskStringUtils.GTASK_JSON_TASKS); } catch (JSONException e) { @@ -574,12 +616,13 @@ public class GTaskClient { throw new ActionFailureException("get task list: handing jsonobject failed"); } } - + public Account getSyncAccount() { return mAccount; } - + + //重置更新的内容 public void resetUpdateArray() { mUpdateArray = null; } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/gtask/remote/GTaskManager.java b/src/Notes-master/src/net/micode/notes/gtask/remote/GTaskManager.java index d2b4082..b76b370 100644 --- a/src/Notes-master/src/net/micode/notes/gtask/remote/GTaskManager.java +++ b/src/Notes-master/src/net/micode/notes/gtask/remote/GTaskManager.java @@ -15,105 +15,75 @@ */ package net.micode.notes.gtask.remote; - -import android.app.Activity; -import android.content.ContentResolver; -import android.content.ContentUris; -import android.content.ContentValues; -import android.content.Context; -import android.database.Cursor; -import android.util.Log; - -import net.micode.notes.R; -import net.micode.notes.data.Notes; -import net.micode.notes.data.Notes.DataColumns; -import net.micode.notes.data.Notes.NoteColumns; -import net.micode.notes.gtask.data.MetaData; -import net.micode.notes.gtask.data.Node; -import net.micode.notes.gtask.data.SqlNote; -import net.micode.notes.gtask.data.Task; -import net.micode.notes.gtask.data.TaskList; -import net.micode.notes.gtask.exception.ActionFailureException; -import net.micode.notes.gtask.exception.NetworkFailureException; -import net.micode.notes.tool.DataUtils; -import net.micode.notes.tool.GTaskStringUtils; - -import org.json.JSONArray; -import org.json.JSONException; -import org.json.JSONObject; - -import java.util.HashMap; -import java.util.HashSet; -import java.util.Iterator; -import java.util.Map; - - + public class GTaskManager { private static final String TAG = GTaskManager.class.getSimpleName(); - public static final int STATE_SUCCESS = 0; - public static final int STATE_NETWORK_ERROR = 1; - public static final int STATE_INTERNAL_ERROR = 2; - public static final int STATE_SYNC_IN_PROGRESS = 3; - - public static final int STATE_SYNC_CANCELLED = 4; - + public static final int STATE_SYNC_CANCELLED = 4; private static GTaskManager mInstance = null; - + private Activity mActivity; - private Context mContext; - private ContentResolver mContentResolver; - private boolean mSyncing; - private boolean mCancelled; - private HashMap mGTaskListHashMap; - private HashMap mGTaskHashMap; - private HashMap mMetaHashMap; - private TaskList mMetaList; - - private HashSet mLocalDeleteIdMap; - + private HashSet mLocalDeleteIdMap; private HashMap mGidToNid; - private HashMap mNidToGid; - - private GTaskManager() { - mSyncing = false; - mCancelled = false; - mGTaskListHashMap = new HashMap(); + + private GTaskManager() { //对象初始化函数 + mSyncing = false; //正在同步,flase代表未执行 + mCancelled = false; //全局标识，flase代表可以执行 + mGTaskListHashMap = new HashMap(); //<>代表Java的泛型,就是创建一个用类型作为参数的类。 mGTaskHashMap = new HashMap(); mMetaHashMap = new HashMap(); mMetaList = null; mLocalDeleteIdMap = new HashSet(); - mGidToNid = new HashMap(); - mNidToGid = new HashMap(); + mGidToNid = new HashMap(); //GoogleID to NodeID?? + mNidToGid = new HashMap(); //NodeID to GoogleID???通过hashmap散列表建立映射 } - - public static synchronized GTaskManager getInstance() { + + /** + * 包含关键字synchronized，语言级同步，指明该函数可能运行在多线程的环境下。 + * 功能：类初始化函数 + * @author TTS + * @return GtaskManger + */ + public static synchronized GTaskManager getInstance() { //可能运行在多线程环境下，使用语言级同步--synchronized if (mInstance == null) { mInstance = new GTaskManager(); } return mInstance; } - + + /** + * 包含关键字synchronized，语言级同步，指明该函数可能运行在多线程的环境下。 + * @author TTS + * @param activity + */ public synchronized void setActivityContext(Activity activity) { - // used for getting authtoken + // used for getting auth token mActivity = activity; } - - public int sync(Context context, GTaskASyncTask asyncTask) { + + /** + * 核心函数 + * 功能：实现了本地同步操作和远端同步操作 + * @author TTS + * @param context-----获取上下文 + * @param asyncTask-------用于同步的异步操作类 + * @return int + */ + public int sync(Context context, GTaskASyncTask asyncTask) { //核心函数 if (mSyncing) { - Log.d(TAG, "Sync is in progress"); + Log.d(TAG, "Sync is in progress"); //创建日志文件（调试信息），debug return STATE_SYNC_IN_PROGRESS; } mContext = context; @@ -126,29 +96,29 @@ public class GTaskManager { mLocalDeleteIdMap.clear(); mGidToNid.clear(); mNidToGid.clear(); - + try { - GTaskClient client = GTaskClient.getInstance(); - client.resetUpdateArray(); - + GTaskClient client = GTaskClient.getInstance(); //getInstance即为创建一个实例,client--客户机 + client.resetUpdateArray(); //JSONArray类型，reset即置为NULL + // login google task if (!mCancelled) { if (!client.login(mActivity)) { throw new NetworkFailureException("login google task failed"); } } - + // get the task list from google asyncTask.publishProgess(mContext.getString(R.string.sync_progress_init_list)); - initGTaskList(); - + initGTaskList(); //获取Google上的JSONtasklist转为本地TaskList + // do content sync work asyncTask.publishProgess(mContext.getString(R.string.sync_progress_syncing)); syncContent(); - } catch (NetworkFailureException e) { - Log.e(TAG, e.toString()); + } catch (NetworkFailureException e) { //分为两种异常，此类异常为网络异常 + Log.e(TAG, e.toString()); //创建日志文件（调试信息），error return STATE_NETWORK_ERROR; - } catch (ActionFailureException e) { + } catch (ActionFailureException e) { //此类异常为操作异常 Log.e(TAG, e.toString()); return STATE_INTERNAL_ERROR; } catch (Exception e) { @@ -164,36 +134,45 @@ public class GTaskManager { mNidToGid.clear(); mSyncing = false; } - + return mCancelled ? STATE_SYNC_CANCELLED : STATE_SUCCESS; } - + + /** + *功能：初始化GtaskList，获取Google上的JSONtasklist转为本地TaskList。 + *获得的数据存储在mMetaList，mGTaskListHashMap，mGTaskHashMap + *@author TTS + *@exception NetworkFailureException + *@return void + */ private void initGTaskList() throws NetworkFailureException { if (mCancelled) return; - GTaskClient client = GTaskClient.getInstance(); + GTaskClient client = GTaskClient.getInstance(); //getInstance即为创建一个实例，client应指远端客户机 try { - JSONArray jsTaskLists = client.getTaskLists(); - + //Json对象是Name Value对(即子元素)的无序集合，相当于一个Map对象。JsonObject类是bantouyan-json库对Json对象的抽象，提供操纵Json对象的各种方法。 + //其格式为{"key1":value1,"key2",value2....};key 必须是字符串。 + //因为ajax请求不刷新页面，但配合js可以实现局部刷新，因此json常常被用来作为异步请求的返回对象使用。 + JSONArray jsTaskLists = client.getTaskLists(); //原注释为get task list------lists？？？ + // init meta list first - mMetaList = null; + mMetaList = null; //TaskList类型 for (int i = 0; i < jsTaskLists.length(); i++) { - JSONObject object = jsTaskLists.getJSONObject(i); + JSONObject object = jsTaskLists.getJSONObject(i); //JSONObject与JSONArray一个为对象，一个为数组。此处取出单个JASONObject String gid = object.getString(GTaskStringUtils.GTASK_JSON_ID); String name = object.getString(GTaskStringUtils.GTASK_JSON_NAME); - - if (name - .equals(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_META)) { - mMetaList = new TaskList(); - mMetaList.setContentByRemoteJSON(object); - + + if (name.equals(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_META)) { + mMetaList = new TaskList(); //MetaList意为元表,Tasklist类型，此处为初始化 + mMetaList.setContentByRemoteJSON(object); //将JSON中部分数据复制到自己定义的对象中相对应的数据：name->mname... + // load meta data - JSONArray jsMetas = client.getTaskList(gid); + JSONArray jsMetas = client.getTaskList(gid); //原注释为get action_list------list？？？ for (int j = 0; j < jsMetas.length(); j++) { object = (JSONObject) jsMetas.getJSONObject(j); - MetaData metaData = new MetaData(); + MetaData metaData = new MetaData(); //继承自Node metaData.setContentByRemoteJSON(object); - if (metaData.isWorthSaving()) { + if (metaData.isWorthSaving()) { //if not worth to save，metadata将不加入mMetaList mMetaList.addChildTask(metaData); if (metaData.getGid() != null) { mMetaHashMap.put(metaData.getRelatedGid(), metaData); @@ -202,7 +181,7 @@ public class GTaskManager { } } } - + // create meta list if not existed if (mMetaList == null) { mMetaList = new TaskList(); @@ -210,21 +189,21 @@ public class GTaskManager { + GTaskStringUtils.FOLDER_META); GTaskClient.getInstance().createTaskList(mMetaList); } - + // init task list for (int i = 0; i < jsTaskLists.length(); i++) { JSONObject object = jsTaskLists.getJSONObject(i); - String gid = object.getString(GTaskStringUtils.GTASK_JSON_ID); + String gid = object.getString(GTaskStringUtils.GTASK_JSON_ID); //通过getString函数传入本地某个标志数据的名称，获取其在远端的名称。 String name = object.getString(GTaskStringUtils.GTASK_JSON_NAME); - + if (name.startsWith(GTaskStringUtils.MIUI_FOLDER_PREFFIX) && !name.equals(GTaskStringUtils.MIUI_FOLDER_PREFFIX + GTaskStringUtils.FOLDER_META)) { - TaskList tasklist = new TaskList(); + TaskList tasklist = new TaskList(); //继承自Node tasklist.setContentByRemoteJSON(object); - mGTaskListHashMap.put(gid, tasklist); - mGTaskHashMap.put(gid, tasklist); - + mGTaskListHashMap.put(gid, tasklist); + mGTaskHashMap.put(gid, tasklist); //为什么加两遍？？？ + // load tasks JSONArray jsTasks = client.getTaskList(gid); for (int j = 0; j < jsTasks.length(); j++) { @@ -246,19 +225,24 @@ public class GTaskManager { throw new ActionFailureException("initGTaskList: handing JSONObject failed"); } } - - private void syncContent() throws NetworkFailureException { + + /** + * 功能：本地内容同步操作 + * @throws NetworkFailureException + * @return 无返回值 + */ + private void syncContent() throws NetworkFailureException { //本地内容同步操作 int syncType; - Cursor c = null; - String gid; - Node node; - - mLocalDeleteIdMap.clear(); - + Cursor c = null; //数据库指针 + String gid; //GoogleID?? + Node node; //Node包含Sync_Action的不同类型 + + mLocalDeleteIdMap.clear(); //HashSet类型 + if (mCancelled) { return; } - + // for local deleted note try { c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE, @@ -273,7 +257,7 @@ public class GTaskManager { mGTaskHashMap.remove(gid); doContentSync(Node.SYNC_ACTION_DEL_REMOTE, node, c); } - + mLocalDeleteIdMap.add(c.getLong(SqlNote.ID_COLUMN)); } } else { @@ -285,10 +269,10 @@ public class GTaskManager { c = null; } } - + // sync folder first syncFolder(); - + // for note existing in database try { c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE, @@ -301,8 +285,8 @@ public class GTaskManager { node = mGTaskHashMap.get(gid); if (node != null) { mGTaskHashMap.remove(gid); - mGidToNid.put(gid, c.getLong(SqlNote.ID_COLUMN)); - mNidToGid.put(c.getLong(SqlNote.ID_COLUMN), gid); + mGidToNid.put(gid, c.getLong(SqlNote.ID_COLUMN)); //通过hashmap建立联系 + mNidToGid.put(c.getLong(SqlNote.ID_COLUMN), gid); //通过hashmap建立联系 syncType = node.getSyncAction(c); } else { if (c.getString(SqlNote.GTASK_ID_COLUMN).trim().length() == 0) { @@ -318,23 +302,23 @@ public class GTaskManager { } else { Log.w(TAG, "failed to query existing note in database"); } - + } finally { if (c != null) { c.close(); c = null; } } - + // go through remaining items - Iterator> iter = mGTaskHashMap.entrySet().iterator(); + Iterator> iter = mGTaskHashMap.entrySet().iterator(); //Iterator迭代器 while (iter.hasNext()) { Map.Entry entry = iter.next(); node = entry.getValue(); doContentSync(Node.SYNC_ACTION_ADD_LOCAL, node, null); } - - // mCancelled can be set by another thread, so we neet to check one by + + // mCancelled can be set by another thread, so we neet to check one by //thread----线程 // one // clear local delete table if (!mCancelled) { @@ -342,25 +326,30 @@ public class GTaskManager { throw new ActionFailureException("failed to batch-delete local deleted notes"); } } - + // refresh local sync id if (!mCancelled) { GTaskClient.getInstance().commitUpdate(); refreshLocalSyncId(); } - + } - + + /** + * 功能： + * @author TTS + * @throws NetworkFailureException + */ private void syncFolder() throws NetworkFailureException { Cursor c = null; String gid; Node node; int syncType; - + if (mCancelled) { return; } - + // for root folder try { c = mContentResolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, @@ -389,7 +378,7 @@ public class GTaskManager { c = null; } } - + // for call-note folder try { c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE, "(_id=?)", @@ -423,7 +412,7 @@ public class GTaskManager { c = null; } } - + // for local existing folders try { c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE, @@ -459,7 +448,7 @@ public class GTaskManager { c = null; } } - + // for remote add folders Iterator> iter = mGTaskListHashMap.entrySet().iterator(); while (iter.hasNext()) { @@ -471,16 +460,24 @@ public class GTaskManager { doContentSync(Node.SYNC_ACTION_ADD_LOCAL, node, null); } } - + if (!mCancelled) GTaskClient.getInstance().commitUpdate(); } - + + /** + * 功能：syncType分类，addLocalNode，addRemoteNode，deleteNode，updateLocalNode，updateRemoteNode + * @author TTS + * @param syncType + * @param node + * @param c + * @throws NetworkFailureException + */ private void doContentSync(int syncType, Node node, Cursor c) throws NetworkFailureException { if (mCancelled) { return; } - + MetaData meta; switch (syncType) { case Node.SYNC_ACTION_ADD_LOCAL: @@ -521,12 +518,18 @@ public class GTaskManager { throw new ActionFailureException("unkown sync action type"); } } - + + /** + * 功能：本地增加Node + * @author TTS + * @param node + * @throws NetworkFailureException + */ private void addLocalNode(Node node) throws NetworkFailureException { if (mCancelled) { return; } - + SqlNote sqlNote; if (node instanceof TaskList) { if (node.getName().equals( @@ -554,7 +557,7 @@ public class GTaskManager { } } } - + if (js.has(GTaskStringUtils.META_HEAD_DATA)) { JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA); for (int i = 0; i < dataArray.length(); i++) { @@ -568,14 +571,14 @@ public class GTaskManager { } } } - + } } catch (JSONException e) { Log.w(TAG, e.toString()); e.printStackTrace(); } sqlNote.setContent(js); - + Long parentId = mGidToNid.get(((Task) node).getParent().getGid()); if (parentId == null) { Log.e(TAG, "cannot find task's parent id locally"); @@ -583,29 +586,38 @@ public class GTaskManager { } sqlNote.setParentId(parentId.longValue()); } - + // create the local node sqlNote.setGtaskId(node.getGid()); sqlNote.commit(false); - + // update gid-nid mapping mGidToNid.put(node.getGid(), sqlNote.getId()); mNidToGid.put(sqlNote.getId(), node.getGid()); - + // update meta updateRemoteMeta(node.getGid(), sqlNote); } - + + /** + * 功能：update本地node + * @author TTS + * @param node + * ----同步操作的基础数据类型 + * @param c + * ----Cursor + * @throws NetworkFailureException + */ private void updateLocalNode(Node node, Cursor c) throws NetworkFailureException { if (mCancelled) { return; } - + SqlNote sqlNote; // update the note locally sqlNote = new SqlNote(mContext, c); sqlNote.setContent(node.getLocalJSONFromContent()); - + Long parentId = (node instanceof Task) ? mGidToNid.get(((Task) node).getParent().getGid()) : new Long(Notes.ID_ROOT_FOLDER); if (parentId == null) { @@ -614,39 +626,50 @@ public class GTaskManager { } sqlNote.setParentId(parentId.longValue()); sqlNote.commit(true); - + // update meta info updateRemoteMeta(node.getGid(), sqlNote); } - + + /** + * 功能：远程增加Node + * 需要updateRemoteMeta + * @author TTS + * @param node + * ----同步操作的基础数据类型 + * @param c + * --Cursor + * @throws NetworkFailureException + */ private void addRemoteNode(Node node, Cursor c) throws NetworkFailureException { if (mCancelled) { return; } - - SqlNote sqlNote = new SqlNote(mContext, c); + + SqlNote sqlNote = new SqlNote(mContext, c); //从本地mContext中获取内容 Node n; - + // update remotely if (sqlNote.isNoteType()) { Task task = new Task(); task.setContentByLocalJSON(sqlNote.getContent()); - + String parentGid = mNidToGid.get(sqlNote.getParentId()); if (parentGid == null) { - Log.e(TAG, "cannot find task's parent tasklist"); + Log.e(TAG, "cannot find task's parent tasklist"); //调试信息 throw new ActionFailureException("cannot add remote task"); } - mGTaskListHashMap.get(parentGid).addChildTask(task); - - GTaskClient.getInstance().createTask(task); + mGTaskListHashMap.get(parentGid).addChildTask(task); //在本地生成的GTaskList中增加子结点 + + //登录远程服务器，创建Task + GTaskClient.getInstance().createTask(task); n = (Node) task; - + // add meta updateRemoteMeta(task.getGid(), sqlNote); } else { TaskList tasklist = null; - + // we need to skip folder if it has already existed String folderName = GTaskStringUtils.MIUI_FOLDER_PREFFIX; if (sqlNote.getId() == Notes.ID_ROOT_FOLDER) @@ -655,13 +678,14 @@ public class GTaskManager { folderName += GTaskStringUtils.FOLDER_CALL_NOTE; else folderName += sqlNote.getSnippet(); - - Iterator> iter = mGTaskListHashMap.entrySet().iterator(); + + //iterator迭代器，通过统一的接口迭代所有的map元素 + Iterator> iter = mGTaskListHashMap.entrySet().iterator(); while (iter.hasNext()) { Map.Entry entry = iter.next(); String gid = entry.getKey(); TaskList list = entry.getValue(); - + if (list.getName().equals(folderName)) { tasklist = list; if (mGTaskHashMap.containsKey(gid)) { @@ -670,7 +694,7 @@ public class GTaskManager { break; } } - + // no match we can add now if (tasklist == null) { tasklist = new TaskList(); @@ -680,56 +704,79 @@ public class GTaskManager { } n = (Node) tasklist; } - + // update local note sqlNote.setGtaskId(n.getGid()); sqlNote.commit(false); sqlNote.resetLocalModified(); sqlNote.commit(true); - - // gid-id mapping + + // gid-id mapping //创建id间的映射 mGidToNid.put(n.getGid(), sqlNote.getId()); mNidToGid.put(sqlNote.getId(), n.getGid()); } - + + /** + * 功能：更新远端的Node，包含meta更新(updateRemoteMeta) + * @author TTS + * @param node + * ----同步操作的基础数据类型 + * @param c + * --Cursor + * @throws NetworkFailureException + */ private void updateRemoteNode(Node node, Cursor c) throws NetworkFailureException { if (mCancelled) { return; } - + SqlNote sqlNote = new SqlNote(mContext, c); - + // update remotely node.setContentByLocalJSON(sqlNote.getContent()); - GTaskClient.getInstance().addUpdateNode(node); - + GTaskClient.getInstance().addUpdateNode(node); //GTaskClient用途为从本地登陆远端服务器 + // update meta updateRemoteMeta(node.getGid(), sqlNote); - + // move task if necessary if (sqlNote.isNoteType()) { Task task = (Task) node; - TaskList preParentList = task.getParent(); - + TaskList preParentList = task.getParent(); + //preParentList为通过node获取的父节点列表 + String curParentGid = mNidToGid.get(sqlNote.getParentId()); + //curParentGid为通过光标在数据库中找到sqlNote的mParentId，再通过mNidToGid由long类型转为String类型的Gid + if (curParentGid == null) { Log.e(TAG, "cannot find task's parent tasklist"); throw new ActionFailureException("cannot update remote task"); } TaskList curParentList = mGTaskListHashMap.get(curParentGid); - - if (preParentList != curParentList) { + //通过HashMap找到对应Gid的TaskList + + if (preParentList != curParentList) { //????????????? preParentList.removeChildTask(task); curParentList.addChildTask(task); GTaskClient.getInstance().moveTask(task, preParentList, curParentList); } } - + // clear local modified flag sqlNote.resetLocalModified(); - sqlNote.commit(true); + //commit到本地数据库 + sqlNote.commit(true); } - + + /** + * 功能：升级远程meta。 meta---元数据----计算机文件系统管理数据---管理数据的数据。 + * @author TTS + * @param gid + * ---GoogleID为String类型 + * @param sqlNote + * ---同步前的数据库操作，故使用类SqlNote + * @throws NetworkFailureException + */ private void updateRemoteMeta(String gid, SqlNote sqlNote) throws NetworkFailureException { if (sqlNote != null && sqlNote.isNoteType()) { MetaData metaData = mMetaHashMap.get(gid); @@ -745,33 +792,39 @@ public class GTaskManager { } } } - + + /** + * 功能：刷新本地，给sync的ID对应上最后更改过的对象 + * @author TTS + * @return void + * @throws NetworkFailureException + */ private void refreshLocalSyncId() throws NetworkFailureException { if (mCancelled) { return; } - - // get the latest gtask list + + // get the latest gtask list //获取最近的（最晚的）gtask list mGTaskHashMap.clear(); mGTaskListHashMap.clear(); mMetaHashMap.clear(); initGTaskList(); - + Cursor c = null; try { c = mContentResolver.query(Notes.CONTENT_NOTE_URI, SqlNote.PROJECTION_NOTE, "(type<>? AND parent_id<>?)", new String[] { String.valueOf(Notes.TYPE_SYSTEM), String.valueOf(Notes.ID_TRASH_FOLER) - }, NoteColumns.TYPE + " DESC"); + }, NoteColumns.TYPE + " DESC"); //query语句：五个参数，NoteColumns.TYPE + " DESC"-----为按类型递减顺序返回查询结果。new String[] {String.valueOf(Notes.TYPE_SYSTEM), String.valueOf(Notes.ID_TRASH_FOLER)}------为选择参数。"(type<>? AND parent_id<>?)"-------指明返回行过滤器。SqlNote.PROJECTION_NOTE--------应返回的数据列的名字。Notes.CONTENT_NOTE_URI--------contentProvider包含所有数据集所对应的uri if (c != null) { while (c.moveToNext()) { String gid = c.getString(SqlNote.GTASK_ID_COLUMN); Node node = mGTaskHashMap.get(gid); if (node != null) { mGTaskHashMap.remove(gid); - ContentValues values = new ContentValues(); + ContentValues values = new ContentValues(); //在ContentValues中创建键值对。准备通过contentResolver写入数据 values.put(NoteColumns.SYNC_ID, node.getLastModified()); - mContentResolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, + mContentResolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, //进行批量更改，选择参数为NULL，应该可以用insert替换，参数分别为表名和需要更新的value对象。 c.getLong(SqlNote.ID_COLUMN)), values, null, null); } else { Log.e(TAG, "something is missed"); @@ -789,12 +842,21 @@ public class GTaskManager { } } } - + + /** + * 功能：获取同步账号,mAccount.name + * @author TTS + * @return String + */ public String getSyncAccount() { return GTaskClient.getInstance().getSyncAccount().name; } - + + /** + * 功能：取消同步，置mCancelled为true + * @author TTS + */ public void cancelSync() { mCancelled = true; } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/gtask/remote/GTaskSyncService.java b/src/Notes-master/src/net/micode/notes/gtask/remote/GTaskSyncService.java index cca36f7..3e3005d 100644 --- a/src/Notes-master/src/net/micode/notes/gtask/remote/GTaskSyncService.java +++ b/src/Notes-master/src/net/micode/notes/gtask/remote/GTaskSyncService.java @@ -15,63 +15,75 @@ */ package net.micode.notes.gtask.remote; - -import android.app.Activity; -import android.app.Service; -import android.content.Context; -import android.content.Intent; -import android.os.Bundle; -import android.os.IBinder; - + +/* + * Service是在一段不定的时间运行在后台，不和用户交互的应用组件 + * 主要方法： + * private void startSync() 启动一个同步工作 + * private void cancelSync() 取消同步 + * public void onCreate() + * public int onStartCommand(Intent intent, int flags, int startId) service生命周期的组成部分，相当于重启service（比如在被暂停之后），而不是创建一个新的service + * public void onLowMemory() 在没有内存的情况下如果存在service则结束掉这的service + * public IBinder onBind() + * public void sendBroadcast(String msg) 发送同步的相关通知 + * public static void startSync(Activity activity) + * public static void cancelSync(Context context) + * public static boolean isSyncing() 判读是否在进行同步 + * public static String getProgressString() 获取当前进度的信息 + */ + public class GTaskSyncService extends Service { public final static String ACTION_STRING_NAME = "sync_action_type"; - + public final static int ACTION_START_SYNC = 0; - + public final static int ACTION_CANCEL_SYNC = 1; - + public final static int ACTION_INVALID = 2; - + public final static String GTASK_SERVICE_BROADCAST_NAME = "net.micode.notes.gtask.remote.gtask_sync_service"; - + public final static String GTASK_SERVICE_BROADCAST_IS_SYNCING = "isSyncing"; - + public final static String GTASK_SERVICE_BROADCAST_PROGRESS_MSG = "progressMsg"; - + private static GTaskASyncTask mSyncTask = null; - + private static String mSyncProgress = ""; - + + //开始一个同步的工作 private void startSync() { if (mSyncTask == null) { mSyncTask = new GTaskASyncTask(this, new GTaskASyncTask.OnCompleteListener() { public void onComplete() { mSyncTask = null; sendBroadcast(""); - stopSelf(); + stopSelf(); } }); sendBroadcast(""); - mSyncTask.execute(); + mSyncTask.execute(); //这个函数让任务是以单线程队列方式或线程池队列方式运行 } } - + + private void cancelSync() { if (mSyncTask != null) { mSyncTask.cancelSync(); } } - + @Override - public void onCreate() { + public void onCreate() { //初始化一个service mSyncTask = null; } - + @Override public int onStartCommand(Intent intent, int flags, int startId) { Bundle bundle = intent.getExtras(); if (bundle != null && bundle.containsKey(ACTION_STRING_NAME)) { switch (bundle.getInt(ACTION_STRING_NAME, ACTION_INVALID)) { + //两种情况，开始同步或者取消同步 case ACTION_START_SYNC: startSync(); break; @@ -81,48 +93,48 @@ public class GTaskSyncService extends Service { default: break; } - return START_STICKY; + return START_STICKY; //等待新的intent来是这个service继续运行 } return super.onStartCommand(intent, flags, startId); } - + @Override public void onLowMemory() { if (mSyncTask != null) { mSyncTask.cancelSync(); } } - - public IBinder onBind(Intent intent) { + + public IBinder onBind(Intent intent) { //不知道干吗用的 return null; } - + public void sendBroadcast(String msg) { mSyncProgress = msg; - Intent intent = new Intent(GTASK_SERVICE_BROADCAST_NAME); - intent.putExtra(GTASK_SERVICE_BROADCAST_IS_SYNCING, mSyncTask != null); + Intent intent = new Intent(GTASK_SERVICE_BROADCAST_NAME); //创建一个新的Intent + intent.putExtra(GTASK_SERVICE_BROADCAST_IS_SYNCING, mSyncTask != null); //附加INTENT中的相应参数的值 intent.putExtra(GTASK_SERVICE_BROADCAST_PROGRESS_MSG, msg); - sendBroadcast(intent); + sendBroadcast(intent); //发送这个通知 } - - public static void startSync(Activity activity) { + + public static void startSync(Activity activity) {//执行一个service，service的内容里的同步动作就是开始同步 GTaskManager.getInstance().setActivityContext(activity); Intent intent = new Intent(activity, GTaskSyncService.class); intent.putExtra(GTaskSyncService.ACTION_STRING_NAME, GTaskSyncService.ACTION_START_SYNC); activity.startService(intent); } - - public static void cancelSync(Context context) { + + public static void cancelSync(Context context) {//执行一个service，service的内容里的同步动作就是取消同步 Intent intent = new Intent(context, GTaskSyncService.class); intent.putExtra(GTaskSyncService.ACTION_STRING_NAME, GTaskSyncService.ACTION_CANCEL_SYNC); context.startService(intent); } - + public static boolean isSyncing() { return mSyncTask != null; } - + public static String getProgressString() { return mSyncProgress; } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/model/Note.java b/src/Notes-master/src/net/micode/notes/model/Note.java index 6706cf6..9e541d8 100644 --- a/src/Notes-master/src/net/micode/notes/model/Note.java +++ b/src/Notes-master/src/net/micode/notes/model/Note.java @@ -15,29 +15,23 @@ */ package net.micode.notes.model; -import android.content.ContentProviderOperation; -import android.content.ContentProviderResult; -import android.content.ContentUris; -import android.content.ContentValues; -import android.content.Context; -import android.content.OperationApplicationException; -import android.net.Uri; -import android.os.RemoteException; -import android.util.Log; - -import net.micode.notes.data.Notes; -import net.micode.notes.data.Notes.CallNote; -import net.micode.notes.data.Notes.DataColumns; -import net.micode.notes.data.Notes.NoteColumns; -import net.micode.notes.data.Notes.TextNote; - -import java.util.ArrayList; - - + +import android.content.ContentProviderOperation;//批量的更新、插入、删除数据。 +import android.content.ContentProviderResult;//操作的结果 +import android.content.ContentUris;//用于添加和获取Uri后面的ID +import android.content.ContentValues;//一种用来存储基本数据类型数据的存储机制 +import android.content.Context;//需要用该类来弄清楚调用者的实例 +import android.content.OperationApplicationException;//操作应用程序容错 +import android.net.Uri;//表示待操作的数据 +import android.os.RemoteException;//远程容错 +import android.util.Log;//输出日志，比如说出错、警告等 + public class Note { - private ContentValues mNoteDiffValues; + // private ContentValues mNoteDiffValues; + ContentValues mNoteDiffValues;// private NoteData mNoteData; private static final String TAG = "Note"; + /** * Create a new note id for adding a new note to databases */ @@ -49,66 +43,67 @@ public class Note { values.put(NoteColumns.MODIFIED_DATE, createdTime); values.put(NoteColumns.TYPE, Notes.TYPE_NOTE); values.put(NoteColumns.LOCAL_MODIFIED, 1); - values.put(NoteColumns.PARENT_ID, folderId); + values.put(NoteColumns.PARENT_ID, folderId);//将数据写入数据库表格 Uri uri = context.getContentResolver().insert(Notes.CONTENT_NOTE_URI, values); - + //ContentResolver()主要是实现外部应用对ContentProvider中的数据 + //进行添加、删除、修改和查询操作 long noteId = 0; try { noteId = Long.valueOf(uri.getPathSegments().get(1)); } catch (NumberFormatException e) { Log.e(TAG, "Get note id error :" + e.toString()); noteId = 0; - } + }//try-catch异常处理 if (noteId == -1) { throw new IllegalStateException("Wrong note id:" + noteId); } return noteId; } - + public Note() { mNoteDiffValues = new ContentValues(); mNoteData = new NoteData(); - } - + }//定义两个变量用来存储便签的数据，一个是存储便签属性、一个是存储便签内容 + public void setNoteValue(String key, String value) { mNoteDiffValues.put(key, value); mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); - } - + }//设置数据库表格的标签属性数据 + public void setTextData(String key, String value) { mNoteData.setTextData(key, value); - } - + }//设置数据库表格的标签文本内容的数据 + public void setTextDataId(long id) { mNoteData.setTextDataId(id); - } - + }//设置文本数据的ID + public long getTextDataId() { return mNoteData.mTextDataId; - } - + }//得到文本数据的ID + public void setCallDataId(long id) { mNoteData.setCallDataId(id); - } - + }//设置电话号码数据的ID + public void setCallData(String key, String value) { mNoteData.setCallData(key, value); - } - + }//得到电话号码数据的ID + public boolean isLocalModified() { return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified(); - } - + }//判断是否是本地修改 + public boolean syncNote(Context context, long noteId) { if (noteId <= 0) { throw new IllegalArgumentException("Wrong note id:" + noteId); } - + if (!isLocalModified()) { return true; } - + /** * In theory, once data changed, the note should be updated on {@link NoteColumns#LOCAL_MODIFIED} and * {@link NoteColumns#MODIFIED_DATE}. For data safety, though update note fails, we also update the @@ -121,74 +116,74 @@ public class Note { // Do not return, fall through } mNoteDiffValues.clear(); - + if (mNoteData.isLocalModified() && (mNoteData.pushIntoContentResolver(context, noteId) == null)) { return false; } - + return true; - } - - private class NoteData { + }//判断数据是否同步 + + private class NoteData {//定义一个基本的便签内容的数据类，主要包含文本数据和电话号码数据 private long mTextDataId; - - private ContentValues mTextDataValues; - + + private ContentValues mTextDataValues;//文本数据 + private long mCallDataId; - - private ContentValues mCallDataValues; - + + private ContentValues mCallDataValues;//电话号码数据 + private static final String TAG = "NoteData"; - + public NoteData() { mTextDataValues = new ContentValues(); mCallDataValues = new ContentValues(); mTextDataId = 0; mCallDataId = 0; } - + //下面是上述几个函数的具体实现 boolean isLocalModified() { return mTextDataValues.size() > 0 || mCallDataValues.size() > 0; } - + void setTextDataId(long id) { if(id <= 0) { throw new IllegalArgumentException("Text data id should larger than 0"); } mTextDataId = id; } - + void setCallDataId(long id) { if (id <= 0) { throw new IllegalArgumentException("Call data id should larger than 0"); } mCallDataId = id; } - + void setCallData(String key, String value) { mCallDataValues.put(key, value); mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); } - + void setTextData(String key, String value) { mTextDataValues.put(key, value); mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); } - + //下面函数的作用是将新的数据通过Uri的操作存储到数据库 Uri pushIntoContentResolver(Context context, long noteId) { /** * Check for safety */ if (noteId <= 0) { throw new IllegalArgumentException("Wrong note id:" + noteId); - } - + }//判断数据是否合法 + ArrayList operationList = new ArrayList(); - ContentProviderOperation.Builder builder = null; - + ContentProviderOperation.Builder builder = null;//数据库的操作列表 + if(mTextDataValues.size() > 0) { mTextDataValues.put(DataColumns.NOTE_ID, noteId); if (mTextDataId == 0) { @@ -209,8 +204,8 @@ public class Note { operationList.add(builder.build()); } mTextDataValues.clear(); - } - + }//把文本数据存入DataColumns + if(mCallDataValues.size() > 0) { mCallDataValues.put(DataColumns.NOTE_ID, noteId); if (mCallDataId == 0) { @@ -231,8 +226,8 @@ public class Note { operationList.add(builder.build()); } mCallDataValues.clear(); - } - + }//把电话号码数据存入DataColumns + if (operationList.size() > 0) { try { ContentProviderResult[] results = context.getContentResolver().applyBatch( @@ -246,8 +241,8 @@ public class Note { Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); return null; } - } + }//存储过程中的异常处理 return null; } } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/model/WorkingNote.java b/src/Notes-master/src/net/micode/notes/model/WorkingNote.java index be081e4..9c02710 100644 --- a/src/Notes-master/src/net/micode/notes/model/WorkingNote.java +++ b/src/Notes-master/src/net/micode/notes/model/WorkingNote.java @@ -15,23 +15,7 @@ */ package net.micode.notes.model; - -import android.appwidget.AppWidgetManager; -import android.content.ContentUris; -import android.content.Context; -import android.database.Cursor; -import android.text.TextUtils; -import android.util.Log; - -import net.micode.notes.data.Notes; -import net.micode.notes.data.Notes.CallNote; -import net.micode.notes.data.Notes.DataColumns; -import net.micode.notes.data.Notes.DataConstants; -import net.micode.notes.data.Notes.NoteColumns; -import net.micode.notes.data.Notes.TextNote; -import net.micode.notes.tool.ResourceParser.NoteBgResources; - - + public class WorkingNote { // Note for the working note private Note mNote; @@ -41,27 +25,22 @@ public class WorkingNote { private String mContent; // Note mode private int mMode; - + private long mAlertDate; - private long mModifiedDate; - private int mBgColorId; - private int mWidgetId; - private int mWidgetType; - private long mFolderId; - private Context mContext; - + private static final String TAG = "WorkingNote"; - + private boolean mIsDeleted; - + private NoteSettingChangedListener mNoteSettingStatusListener; - + + // 声明 DATA_PROJECTION字符串数组 public static final String[] DATA_PROJECTION = new String[] { DataColumns.ID, DataColumns.CONTENT, @@ -71,7 +50,8 @@ public class WorkingNote { DataColumns.DATA3, DataColumns.DATA4, }; - + + // 声明 NOTE_PROJECTION字符串数组 public static final String[] NOTE_PROJECTION = new String[] { NoteColumns.PARENT_ID, NoteColumns.ALERTED_DATE, @@ -80,29 +60,20 @@ public class WorkingNote { NoteColumns.WIDGET_TYPE, NoteColumns.MODIFIED_DATE }; - + private static final int DATA_ID_COLUMN = 0; - private static final int DATA_CONTENT_COLUMN = 1; - private static final int DATA_MIME_TYPE_COLUMN = 2; - private static final int DATA_MODE_COLUMN = 3; - private static final int NOTE_PARENT_ID_COLUMN = 0; - private static final int NOTE_ALERTED_DATE_COLUMN = 1; - private static final int NOTE_BG_COLOR_ID_COLUMN = 2; - private static final int NOTE_WIDGET_ID_COLUMN = 3; - private static final int NOTE_WIDGET_TYPE_COLUMN = 4; - private static final int NOTE_MODIFIED_DATE_COLUMN = 5; - + // New note construct - private WorkingNote(Context context, long folderId) { + public WorkingNote(Context context, long folderId) { mContext = context; mAlertDate = 0; mModifiedDate = System.currentTimeMillis(); @@ -113,7 +84,8 @@ public class WorkingNote { mMode = 0; mWidgetType = Notes.TYPE_WIDGET_INVALIDE; } - + + // WorkingNote的构造函数 // Existing note construct private WorkingNote(Context context, long noteId, long folderId) { mContext = context; @@ -123,12 +95,15 @@ public class WorkingNote { mNote = new Note(); loadNote(); } - + + // 加载Note + // 通过数据库调用query函数找到第一个条目 private void loadNote() { Cursor cursor = mContext.getContentResolver().query( ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null, null, null); - + + // 若存在，储存相应信息 if (cursor != null) { if (cursor.moveToFirst()) { mFolderId = cursor.getLong(NOTE_PARENT_ID_COLUMN); @@ -139,21 +114,24 @@ public class WorkingNote { mModifiedDate = cursor.getLong(NOTE_MODIFIED_DATE_COLUMN); } cursor.close(); + // 若不存在，报错 } else { Log.e(TAG, "No note with id:" + mNoteId); throw new IllegalArgumentException("Unable to find note with id " + mNoteId); } loadNoteData(); } - + + // 加载NoteData private void loadNoteData() { Cursor cursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] { String.valueOf(mNoteId) }, null); - + if (cursor != null) { - if (cursor.moveToFirst()) { + // 查到信息不为空 + if (cursor.moveToFirst()) { // 查看第一项是否存在 do { String type = cursor.getString(DATA_MIME_TYPE_COLUMN); if (DataConstants.NOTE.equals(type)) { @@ -165,7 +143,7 @@ public class WorkingNote { } else { Log.d(TAG, "Wrong note type with type:" + type); } - } while (cursor.moveToNext()); + } while (cursor.moveToNext());//查阅所有项,直到为空 } cursor.close(); } else { @@ -173,31 +151,35 @@ public class WorkingNote { throw new IllegalArgumentException("Unable to find note's data with id " + mNoteId); } } - + + // 创建空的Note + // 传参：context，文件夹id，widget，背景颜色 public static WorkingNote createEmptyNote(Context context, long folderId, int widgetId, int widgetType, int defaultBgColorId) { WorkingNote note = new WorkingNote(context, folderId); + // 设定相关属性 note.setBgColorId(defaultBgColorId); note.setWidgetId(widgetId); note.setWidgetType(widgetType); return note; } - + public static WorkingNote load(Context context, long id) { return new WorkingNote(context, id, 0); } - + + // 保存Note public synchronized boolean saveNote() { - if (isWorthSaving()) { - if (!existInDatabase()) { + if (isWorthSaving()) { //是否值得保存 + if (!existInDatabase()) { // 是否存在数据库中 if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) { Log.e(TAG, "Create new note fail with id:" + mNoteId); return false; } } - + mNote.syncNote(mContext, mNoteId); - + /** * Update widget content if there exist any widget of this note */ @@ -211,12 +193,15 @@ public class WorkingNote { return false; } } - + + // 是否在数据库中存在 public boolean existInDatabase() { return mNoteId > 0; } - + + // 是否值得保存 private boolean isWorthSaving() { + // 被删除，或（不在数据库中 内容为空），或 本地已保存过 if (mIsDeleted || (!existInDatabase() && TextUtils.isEmpty(mContent)) || (existInDatabase() && !mNote.isLocalModified())) { return false; @@ -224,11 +209,15 @@ public class WorkingNote { return true; } } - + + + // 设置mNoteSettingStatusListener public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) { mNoteSettingStatusListener = l; } - + + // 设置AlertDate + // 若 mAlertDate与data不同，则更改mAlertDate并设定NoteValue public void setAlertDate(long date, boolean set) { if (date != mAlertDate) { mAlertDate = date; @@ -238,17 +227,21 @@ public class WorkingNote { mNoteSettingStatusListener.onClockAlertChanged(date, set); } } - + + // 设定删除标记 public void markDeleted(boolean mark) { + // 设定标记 mIsDeleted = mark; if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID && mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mNoteSettingStatusListener != null) { mNoteSettingStatusListener.onWidgetChanged(); + // 调用mNoteSettingStatusListener的 onWidgetChanged方法 } } - + + // 设定背景颜色 public void setBgColorId(int id) { - if (id != mBgColorId) { + if (id != mBgColorId) { //设定条件 id != mBgColorId mBgColorId = id; if (mNoteSettingStatusListener != null) { mNoteSettingStatusListener.onBackgroundColorChanged(); @@ -256,9 +249,11 @@ public class WorkingNote { mNote.setNoteValue(NoteColumns.BG_COLOR_ID, String.valueOf(id)); } } - + + // 设定检查列表模式 + // 参数：mode public void setCheckListMode(int mode) { - if (mMode != mode) { + if (mMode != mode) { //设定条件 mMode != mode if (mNoteSettingStatusListener != null) { mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode); } @@ -266,98 +261,125 @@ public class WorkingNote { mNote.setTextData(TextNote.MODE, String.valueOf(mMode)); } } - + + + // 设定WidgetType + // 参数：type public void setWidgetType(int type) { - if (type != mWidgetType) { + if (type != mWidgetType) {//设定条件 type != mWidgetType mWidgetType = type; mNote.setNoteValue(NoteColumns.WIDGET_TYPE, String.valueOf(mWidgetType)); + // 调用Note的setNoteValue方法更改WidgetType } } - + + // 设定WidgetId + // 参数：id public void setWidgetId(int id) { - if (id != mWidgetId) { + if (id != mWidgetId) {//设定条件 id != mWidgetId mWidgetId = id; mNote.setNoteValue(NoteColumns.WIDGET_ID, String.valueOf(mWidgetId)); + // 调用Note的setNoteValue方法更改WidgetId } } - + + // 设定WorkingTex + // 参数：更改的text public void setWorkingText(String text) { - if (!TextUtils.equals(mContent, text)) { + if (!TextUtils.equals(mContent, text)) {//设定条件 mContent, text内容不同 mContent = text; mNote.setTextData(DataColumns.CONTENT, mContent); + // 调用Note的setTextData方法更改WorkingText } } - + + // 转变mNote的CallData及CallNote信息 + // 参数：String phoneNumber, long callDate public void convertToCallNote(String phoneNumber, long callDate) { mNote.setCallData(CallNote.CALL_DATE, String.valueOf(callDate)); mNote.setCallData(CallNote.PHONE_NUMBER, phoneNumber); mNote.setNoteValue(NoteColumns.PARENT_ID, String.valueOf(Notes.ID_CALL_RECORD_FOLDER)); } - + + // 判断是否有时钟题型 public boolean hasClockAlert() { return (mAlertDate > 0 ? true : false); } - + + // 获取Content public String getContent() { return mContent; } - + + // 获取AlertDate public long getAlertDate() { return mAlertDate; } - + + // 获取ModifiedDate public long getModifiedDate() { return mModifiedDate; } - + + // 获取背景颜色来源id public int getBgColorResId() { return NoteBgResources.getNoteBgResource(mBgColorId); } - + + // 获取背景颜色id public int getBgColorId() { return mBgColorId; } - + + // 获取标题背景颜色id public int getTitleBgResId() { return NoteBgResources.getNoteTitleBgResource(mBgColorId); } - + + // 获取CheckListMode public int getCheckListMode() { return mMode; } - + + // 获取便签id public long getNoteId() { return mNoteId; } - + + // 获取文件夹id public long getFolderId() { return mFolderId; } - + + // 获取WidgetId public int getWidgetId() { return mWidgetId; } - + + // 获取WidgetType public int getWidgetType() { return mWidgetType; } - - public interface NoteSettingChangedListener { + + // 创建接口 NoteSettingChangedListener,便签更新监视 + // 为NoteEditActivity提供接口 + // 提供函数有 + public interface NoteSettingChangedListener { /** * Called when the background color of current note has just changed */ void onBackgroundColorChanged(); - + /** * Called when user set clock */ void onClockAlertChanged(long date, boolean set); - + /** * Call when user create note from widget */ void onWidgetChanged(); - + /** * Call when switch between check list mode and normal mode * @param oldMode is previous mode before change @@ -365,4 +387,4 @@ public class WorkingNote { */ void onCheckListModeChanged(int oldMode, int newMode); } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/tool/BackupUtils.java b/src/Notes-master/src/net/micode/notes/tool/BackupUtils.java index 39f6ec4..f97e027 100644 --- a/src/Notes-master/src/net/micode/notes/tool/BackupUtils.java +++ b/src/Notes-master/src/net/micode/notes/tool/BackupUtils.java @@ -15,76 +15,60 @@ */ package net.micode.notes.tool; - -import android.content.Context; -import android.database.Cursor; -import android.os.Environment; -import android.text.TextUtils; -import android.text.format.DateFormat; -import android.util.Log; - -import net.micode.notes.R; -import net.micode.notes.data.Notes; -import net.micode.notes.data.Notes.DataColumns; -import net.micode.notes.data.Notes.DataConstants; -import net.micode.notes.data.Notes.NoteColumns; - -import java.io.File; -import java.io.FileNotFoundException; -import java.io.FileOutputStream; -import java.io.IOException; -import java.io.PrintStream; - - + public class BackupUtils { - private static final String TAG = "BackupUtils"; + private static final String TAG = "BackupUtils"; // Singleton stuff - private static BackupUtils sInstance; - + private static BackupUtils sInstance; //类里面为什么可以定义自身类的对象？ + public static synchronized BackupUtils getInstance(Context context) { + //ynchronized 关键字，代表这个方法加锁,相当于不管哪一个线程（例如线程A） + //运行到这个方法时,都要检查有没有其它线程B（或者C、 D等）正在用这个方法(或者该类的其他同步方法)，有的话要等正在使用synchronized方法的线程B（或者C 、D）运行完这个方法后再运行此线程A,没有的话,锁定调用者,然后直接运行。 + //它包括两种用法：synchronized 方法和 synchronized 块。 if (sInstance == null) { + //如果当前备份不存在，则新声明一个 sInstance = new BackupUtils(context); } return sInstance; } - + /** * Following states are signs to represents backup or restore * status */ - // Currently, the sdcard is not mounted - public static final int STATE_SD_CARD_UNMOUONTED = 0; - // The backup file not exist + // Currently, the sdcard is not mounted SD卡没有被装入手机 + public static final int STATE_SD_CARD_UNMOUONTED = 0; + // The backup file not exist 备份文件夹不存在 public static final int STATE_BACKUP_FILE_NOT_EXIST = 1; - // The data is not well formated, may be changed by other programs + // The data is not well formated, may be changed by other programs 数据已被破坏，可能被修改 public static final int STATE_DATA_DESTROIED = 2; - // Some run-time exception which causes restore or backup fails + // Some run-time exception which causes restore or backup fails 超时异常 public static final int STATE_SYSTEM_ERROR = 3; - // Backup or restore success + // Backup or restore success 成功存储 public static final int STATE_SUCCESS = 4; - + private TextExport mTextExport; - - private BackupUtils(Context context) { + + private BackupUtils(Context context) { //初始化函数 mTextExport = new TextExport(context); } - - private static boolean externalStorageAvailable() { + + private static boolean externalStorageAvailable() { //外部存储功能是否可用 return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState()); } - + public int exportToText() { return mTextExport.exportToText(); } - + public String getExportedTextFileName() { return mTextExport.mFileName; } - + public String getExportedTextFileDir() { return mTextExport.mFileDirectory; } - + private static class TextExport { private static final String[] NOTE_PROJECTION = { NoteColumns.ID, @@ -92,13 +76,13 @@ public class BackupUtils { NoteColumns.SNIPPET, NoteColumns.TYPE }; - + private static final int NOTE_COLUMN_ID = 0; - + private static final int NOTE_COLUMN_MODIFIED_DATE = 1; - + private static final int NOTE_COLUMN_SNIPPET = 2; - + private static final String[] DATA_PROJECTION = { DataColumns.CONTENT, DataColumns.MIME_TYPE, @@ -107,71 +91,71 @@ public class BackupUtils { DataColumns.DATA3, DataColumns.DATA4, }; - + private static final int DATA_COLUMN_CONTENT = 0; - + private static final int DATA_COLUMN_MIME_TYPE = 1; - + private static final int DATA_COLUMN_CALL_DATE = 2; - + private static final int DATA_COLUMN_PHONE_NUMBER = 4; - + private final String [] TEXT_FORMAT; private static final int FORMAT_FOLDER_NAME = 0; private static final int FORMAT_NOTE_DATE = 1; private static final int FORMAT_NOTE_CONTENT = 2; - + private Context mContext; private String mFileName; private String mFileDirectory; - + public TextExport(Context context) { TEXT_FORMAT = context.getResources().getStringArray(R.array.format_for_exported_note); mContext = context; - mFileName = ""; + mFileName = ""; //为什么为空? mFileDirectory = ""; } - - private String getFormat(int id) { + + private String getFormat(int id) { //获取文本的组成部分 return TEXT_FORMAT[id]; } - + /** * Export the folder identified by folder id to text */ - private void exportFolderToText(String folderId, PrintStream ps) { - // Query notes belong to this folder + private void exportFolderToText(String folderId, PrintStream ps) { + // Query notes belong to this folder 通过查询parent id是文件夹id的note来选出制定ID文件夹下的Note Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI, NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] { folderId }, null); - - if (notesCursor != null) { + + if (notesCursor != null) { if (notesCursor.moveToFirst()) { do { - // Print note's last modified date + // Print note's last modified date ps里面保存有这份note的日期 ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( mContext.getString(R.string.format_datetime_mdhm), notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); // Query data belong to this note String noteId = notesCursor.getString(NOTE_COLUMN_ID); - exportNoteToText(noteId, ps); + exportNoteToText(noteId, ps); //将文件导出到text } while (notesCursor.moveToNext()); } notesCursor.close(); } } - + /** * Export note identified by id to a print stream */ - private void exportNoteToText(String noteId, PrintStream ps) { + private void exportNoteToText(String noteId, PrintStream ps) { Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] { noteId }, null); - - if (dataCursor != null) { + + if (dataCursor != null) { //利用光标来扫描内容，区别为callnote和note两种，靠ps.printline输出 if (dataCursor.moveToFirst()) { do { String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE); @@ -180,8 +164,8 @@ public class BackupUtils { String phoneNumber = dataCursor.getString(DATA_COLUMN_PHONE_NUMBER); long callDate = dataCursor.getLong(DATA_COLUMN_CALL_DATE); String location = dataCursor.getString(DATA_COLUMN_CONTENT); - - if (!TextUtils.isEmpty(phoneNumber)) { + + if (!TextUtils.isEmpty(phoneNumber)) { //判断是否为空字符 ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), phoneNumber)); } @@ -214,29 +198,29 @@ public class BackupUtils { Log.e(TAG, e.toString()); } } - + /** * Note will be exported as text which is user readable */ - public int exportToText() { + public int exportToText() { //总函数，调用上面的exportFolder和exportNote if (!externalStorageAvailable()) { Log.d(TAG, "Media was not mounted"); return STATE_SD_CARD_UNMOUONTED; } - + PrintStream ps = getExportToTextPrintStream(); if (ps == null) { Log.e(TAG, "get print stream error"); return STATE_SYSTEM_ERROR; } - // First export folder and its notes + // First export folder and its notes 导出文件夹，就是导出里面包含的便签 Cursor folderCursor = mContext.getContentResolver().query( Notes.CONTENT_NOTE_URI, NOTE_PROJECTION, "(" + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + ") OR " + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER, null, null); - + if (folderCursor != null) { if (folderCursor.moveToFirst()) { do { @@ -256,14 +240,14 @@ public class BackupUtils { } folderCursor.close(); } - - // Export notes in root's folder + + // Export notes in root's folder 将根目录里的便签导出（由于不属于任何文件夹，因此无法通过文件夹导出来实现这一部分便签的导出） Cursor noteCursor = mContext.getContentResolver().query( Notes.CONTENT_NOTE_URI, NOTE_PROJECTION, NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID + "=0", null, null); - + if (noteCursor != null) { if (noteCursor.moveToFirst()) { do { @@ -278,14 +262,14 @@ public class BackupUtils { noteCursor.close(); } ps.close(); - + return STATE_SUCCESS; } - + /** * Get a print stream pointed to the file {@generateExportedTextFile} */ - private PrintStream getExportToTextPrintStream() { + private PrintStream getExportToTextPrintStream() { File file = generateFileMountedOnSDcard(mContext, R.string.file_path, R.string.file_name_txt_format); if (file == null) { @@ -297,7 +281,7 @@ public class BackupUtils { PrintStream ps = null; try { FileOutputStream fos = new FileOutputStream(file); - ps = new PrintStream(fos); + ps = new PrintStream(fos); //将ps输出流输出到特定的文件，目的就是导出到文件，而不是直接输出 } catch (FileNotFoundException e) { e.printStackTrace(); return null; @@ -308,22 +292,22 @@ public class BackupUtils { return ps; } } - + /** * Generate the text file to store imported data */ private static File generateFileMountedOnSDcard(Context context, int filePathResId, int fileNameFormatResId) { StringBuilder sb = new StringBuilder(); - sb.append(Environment.getExternalStorageDirectory()); - sb.append(context.getString(filePathResId)); - File filedir = new File(sb.toString()); + sb.append(Environment.getExternalStorageDirectory()); //外部（SD卡）的存储路径 + sb.append(context.getString(filePathResId)); //文件的存储路径 + File filedir = new File(sb.toString()); //filedir应该就是用来存储路径信息 sb.append(context.getString( fileNameFormatResId, DateFormat.format(context.getString(R.string.format_date_ymd), System.currentTimeMillis()))); File file = new File(sb.toString()); - - try { + + try { //如果这些文件不存在，则新建 if (!filedir.exists()) { filedir.mkdir(); } @@ -336,9 +320,8 @@ public class BackupUtils { } catch (IOException e) { e.printStackTrace(); } - +// try catch 异常处理 return null; } } - - + \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/tool/DataUtils.java b/src/Notes-master/src/net/micode/notes/tool/DataUtils.java index 2a14982..efdf24e 100644 --- a/src/Notes-master/src/net/micode/notes/tool/DataUtils.java +++ b/src/Notes-master/src/net/micode/notes/tool/DataUtils.java @@ -15,29 +15,10 @@ */ package net.micode.notes.tool; - -import android.content.ContentProviderOperation; -import android.content.ContentProviderResult; -import android.content.ContentResolver; -import android.content.ContentUris; -import android.content.ContentValues; -import android.content.OperationApplicationException; -import android.database.Cursor; -import android.os.RemoteException; -import android.util.Log; - -import net.micode.notes.data.Notes; -import net.micode.notes.data.Notes.CallNote; -import net.micode.notes.data.Notes.NoteColumns; -import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute; - -import java.util.ArrayList; -import java.util.HashSet; - - + public class DataUtils { public static final String TAG = "DataUtils"; - public static boolean batchDeleteNotes(ContentResolver resolver, HashSet ids) { + public static boolean batchDeleteNotes(ContentResolver resolver, HashSet ids) { //直接删除多个笔记 if (ids == null) { Log.d(TAG, "the ids is null"); return true; @@ -46,19 +27,20 @@ public class DataUtils { Log.d(TAG, "no id is in the hashset"); return true; } - - ArrayList operationList = new ArrayList(); + + ArrayList operationList = new ArrayList(); //提供一个任务列表 for (long id : ids) { if(id == Notes.ID_ROOT_FOLDER) { Log.e(TAG, "Don't delete system folder root"); continue; - } + } //如果发现是根文件夹，则不删除 ContentProviderOperation.Builder builder = ContentProviderOperation - .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); - operationList.add(builder.build()); + .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); //用newDelete实现删除功能 + operationList.add(builder.build()); // } try { - ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); + ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);//主机名（或叫Authority）用于唯一标识这个ContentProvider，外部调用者可以根据这个标识来找到它。 + //数据库事务，数据库事务是由一组数据库操作序列组成，事务作为一个整体被执行 if (results == null || results.length == 0 || results[0] == null) { Log.d(TAG, "delete notes failed, ids:" + ids.toString()); return false; @@ -71,33 +53,33 @@ public class DataUtils { } return false; } - + public static void moveNoteToFoler(ContentResolver resolver, long id, long srcFolderId, long desFolderId) { ContentValues values = new ContentValues(); values.put(NoteColumns.PARENT_ID, desFolderId); values.put(NoteColumns.ORIGIN_PARENT_ID, srcFolderId); values.put(NoteColumns.LOCAL_MODIFIED, 1); - resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null); + resolver.update(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id), values, null, null); //对需要移动的便签进行数据更新，然后用update实现 } - + public static boolean batchMoveToFolder(ContentResolver resolver, HashSet ids, long folderId) { if (ids == null) { Log.d(TAG, "the ids is null"); return true; } - + ArrayList operationList = new ArrayList(); for (long id : ids) { ContentProviderOperation.Builder builder = ContentProviderOperation - .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); + .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); //通过withAppendedId方法，为该Uri加上ID builder.withValue(NoteColumns.PARENT_ID, folderId); builder.withValue(NoteColumns.LOCAL_MODIFIED, 1); operationList.add(builder.build()); - } - + }//将ids里包含的每一列的数据逐次加入到operationList中，等待最后的批量处理 + try { - ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); + ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); //applyBatch一次性处理一个操作列表 if (results == null || results.length == 0 || results[0] == null) { Log.d(TAG, "delete notes failed, ids:" + ids.toString()); return false; @@ -110,7 +92,7 @@ public class DataUtils { } return false; } - + /** * Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}} */ @@ -119,13 +101,13 @@ public class DataUtils { new String[] { "COUNT(*)" }, NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?", new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)}, - null); - + null); //筛选条件：源文件不为trash folder + int count = 0; if(cursor != null) { if(cursor.moveToFirst()) { try { - count = cursor.getInt(0); + count = cursor.getInt(0); } catch (IndexOutOfBoundsException e) { Log.e(TAG, "get folder count failed:" + e.toString()); } finally { @@ -134,29 +116,29 @@ public class DataUtils { } } return count; - } - + } + public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) { - Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), + Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), //通过withAppendedId方法，为该Uri加上ID null, NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER, - new String [] {String.valueOf(type)}, - null); - + new String [] {String.valueOf(type)}, + null); //查询条件：type符合，且不属于垃圾文件夹 + boolean exist = false; if (cursor != null) { - if (cursor.getCount() > 0) { + if (cursor.getCount() > 0) {//用getcount函数判断cursor是否为空 exist = true; } cursor.close(); } return exist; } - + public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) { Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null, null, null, null); - + boolean exist = false; if (cursor != null) { if (cursor.getCount() > 0) { @@ -166,11 +148,11 @@ public class DataUtils { } return exist; } - + public static boolean existInDataDatabase(ContentResolver resolver, long dataId) { Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null, null, null, null); - + boolean exist = false; if (cursor != null) { if (cursor.getCount() > 0) { @@ -180,13 +162,14 @@ public class DataUtils { } return exist; } - + public static boolean checkVisibleFolderName(ContentResolver resolver, String name) { Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, null, NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + " AND " + NoteColumns.SNIPPET + "=?", new String[] { name }, null); + //通过名字查询文件是否存在 boolean exist = false; if(cursor != null) { if(cursor.getCount() > 0) { @@ -196,14 +179,14 @@ public class DataUtils { } return exist; } - + public static HashSet getFolderNoteWidget(ContentResolver resolver, long folderId) { Cursor c = resolver.query(Notes.CONTENT_NOTE_URI, new String[] { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE }, NoteColumns.PARENT_ID + "=?", new String[] { String.valueOf(folderId) }, - null); - + null); //查询条件：父ID是传入的folderId; + HashSet set = null; if (c != null) { if (c.moveToFirst()) { @@ -211,26 +194,26 @@ public class DataUtils { do { try { AppWidgetAttribute widget = new AppWidgetAttribute(); - widget.widgetId = c.getInt(0); - widget.widgetType = c.getInt(1); + widget.widgetId = c.getInt(0); //0对应的NoteColumns.WIDGET_ID + widget.widgetType = c.getInt(1); //1对应的NoteColumns.WIDGET_TYPE set.add(widget); } catch (IndexOutOfBoundsException e) { Log.e(TAG, e.toString()); } - } while (c.moveToNext()); + } while (c.moveToNext()); //查询下一条 } c.close(); } return set; } - + public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) { Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, new String [] { CallNote.PHONE_NUMBER }, CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?", new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE }, null); - + if (cursor != null && cursor.moveToFirst()) { try { return cursor.getString(0); @@ -242,7 +225,7 @@ public class DataUtils { } return ""; } - + public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) { Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, new String [] { CallNote.NOTE_ID }, @@ -250,11 +233,12 @@ public class DataUtils { + CallNote.PHONE_NUMBER + ",?)", new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber }, null); - + //通过数据库操作，查询条件是（callDate和phoneNumber匹配传入参数的值） + if (cursor != null) { if (cursor.moveToFirst()) { try { - return cursor.getLong(0); + return cursor.getLong(0); //0对应的CallNote.NOTE_ID } catch (IndexOutOfBoundsException e) { Log.e(TAG, "Get call note id fails " + e.toString()); } @@ -263,14 +247,14 @@ public class DataUtils { } return 0; } - + public static String getSnippetById(ContentResolver resolver, long noteId) { Cursor cursor = resolver.query(Notes.CONTENT_NOTE_URI, new String [] { NoteColumns.SNIPPET }, NoteColumns.ID + "=?", new String [] { String.valueOf(noteId)}, - null); - + null);//查询条件：noteId + if (cursor != null) { String snippet = ""; if (cursor.moveToFirst()) { @@ -281,8 +265,7 @@ public class DataUtils { } throw new IllegalArgumentException("Note is not found with id: " + noteId); } - - public static String getFormattedSnippet(String snippet) { + public static String getFormattedSnippet(String snippet) { //对字符串进行格式处理，将字符串两头的空格去掉，同时将换行符去掉 if (snippet != null) { snippet = snippet.trim(); int index = snippet.indexOf('\n'); @@ -292,4 +275,5 @@ public class DataUtils { } return snippet; } -} + +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/tool/GTaskStringUtils.java b/src/Notes-master/src/net/micode/notes/tool/GTaskStringUtils.java index 666b729..ffbfa07 100644 --- a/src/Notes-master/src/net/micode/notes/tool/GTaskStringUtils.java +++ b/src/Notes-master/src/net/micode/notes/tool/GTaskStringUtils.java @@ -14,100 +14,102 @@ * limitations under the License. */ +//简介：定义了很多的静态字符串，目的就是为了提供jsonObject中相应字符串的"key"。把这些静态的定义单独写到了一个类里面，这是非常好的编程规范 package net.micode.notes.tool; - -public class GTaskStringUtils { - + +//这个类就是定义了一堆static string，实际就是为jsonObject提供Key，把这些定义全部写到一个类里，方便查看管理，是一个非常好的编程习惯 +public class GTaskStringUtils { + public final static String GTASK_JSON_ACTION_ID = "action_id"; - + public final static String GTASK_JSON_ACTION_LIST = "action_list"; - + public final static String GTASK_JSON_ACTION_TYPE = "action_type"; - + public final static String GTASK_JSON_ACTION_TYPE_CREATE = "create"; - + public final static String GTASK_JSON_ACTION_TYPE_GETALL = "get_all"; - + public final static String GTASK_JSON_ACTION_TYPE_MOVE = "move"; - + public final static String GTASK_JSON_ACTION_TYPE_UPDATE = "update"; - + public final static String GTASK_JSON_CREATOR_ID = "creator_id"; - + public final static String GTASK_JSON_CHILD_ENTITY = "child_entity"; - + public final static String GTASK_JSON_CLIENT_VERSION = "client_version"; - + public final static String GTASK_JSON_COMPLETED = "completed"; - + public final static String GTASK_JSON_CURRENT_LIST_ID = "current_list_id"; - + public final static String GTASK_JSON_DEFAULT_LIST_ID = "default_list_id"; - + public final static String GTASK_JSON_DELETED = "deleted"; - + public final static String GTASK_JSON_DEST_LIST = "dest_list"; - + public final static String GTASK_JSON_DEST_PARENT = "dest_parent"; - + public final static String GTASK_JSON_DEST_PARENT_TYPE = "dest_parent_type"; - + public final static String GTASK_JSON_ENTITY_DELTA = "entity_delta"; - + public final static String GTASK_JSON_ENTITY_TYPE = "entity_type"; - + public final static String GTASK_JSON_GET_DELETED = "get_deleted"; - + public final static String GTASK_JSON_ID = "id"; - + public final static String GTASK_JSON_INDEX = "index"; - + public final static String GTASK_JSON_LAST_MODIFIED = "last_modified"; - + public final static String GTASK_JSON_LATEST_SYNC_POINT = "latest_sync_point"; - + public final static String GTASK_JSON_LIST_ID = "list_id"; - + public final static String GTASK_JSON_LISTS = "lists"; - + public final static String GTASK_JSON_NAME = "name"; - + public final static String GTASK_JSON_NEW_ID = "new_id"; - + public final static String GTASK_JSON_NOTES = "notes"; - + public final static String GTASK_JSON_PARENT_ID = "parent_id"; - + public final static String GTASK_JSON_PRIOR_SIBLING_ID = "prior_sibling_id"; - + public final static String GTASK_JSON_RESULTS = "results"; - + public final static String GTASK_JSON_SOURCE_LIST = "source_list"; - + public final static String GTASK_JSON_TASKS = "tasks"; - + public final static String GTASK_JSON_TYPE = "type"; - + public final static String GTASK_JSON_TYPE_GROUP = "GROUP"; - + public final static String GTASK_JSON_TYPE_TASK = "TASK"; - + public final static String GTASK_JSON_USER = "user"; - + public final static String MIUI_FOLDER_PREFFIX = "[MIUI_Notes]"; - + public final static String FOLDER_DEFAULT = "Default"; - + public final static String FOLDER_CALL_NOTE = "Call_Note"; - + public final static String FOLDER_META = "METADATA"; - + public final static String META_HEAD_GTASK_ID = "meta_gid"; - + public final static String META_HEAD_NOTE = "meta_note"; - + public final static String META_HEAD_DATA = "meta_data"; - + public final static String META_NOTE_NAME = "[META INFO] DON'T UPDATE AND DELETE"; - -} + +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/tool/ResourceParser.java b/src/Notes-master/src/net/micode/notes/tool/ResourceParser.java index 1ad3ad6..145497e 100644 --- a/src/Notes-master/src/net/micode/notes/tool/ResourceParser.java +++ b/src/Notes-master/src/net/micode/notes/tool/ResourceParser.java @@ -15,30 +15,39 @@ */ package net.micode.notes.tool; - -import android.content.Context; -import android.preference.PreferenceManager; - -import net.micode.notes.R; -import net.micode.notes.ui.NotesPreferenceActivity; - + +/*简介：字面意义是资源分析器，实际上就是获取资源并且在程序中使用，比如颜色图片等 + * 实现方法：主要利用R.java这个类，其中包括 + * R.id 组件资源引用 + * R.drawable 图片资源 （被使用） + * R.layout 布局资源 + * R.menu 菜单资源 + * R.String 文字资源 + * R.style 主题资源 （被使用） + * 在按顺序设置好相应的id后，就可以编写简单的getXXX函数获取需要的资源 + * + * 特殊的变量 ： + * @BG_DEFAULT_COLOR 默认背景颜色（黄） + * BG_DEFAULT_FONT_SIZE 默认文本大小（中） + */ + public class ResourceParser { - + public static final int YELLOW = 0; public static final int BLUE = 1; public static final int WHITE = 2; public static final int GREEN = 3; public static final int RED = 4; - + public static final int BG_DEFAULT_COLOR = YELLOW; - + public static final int TEXT_SMALL = 0; public static final int TEXT_MEDIUM = 1; public static final int TEXT_LARGE = 2; public static final int TEXT_SUPER = 3; - + public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM; - + public static class NoteBgResources { private final static int [] BG_EDIT_RESOURCES = new int [] { R.drawable.edit_yellow, @@ -47,7 +56,7 @@ public class ResourceParser { R.drawable.edit_green, R.drawable.edit_red }; - + private final static int [] BG_EDIT_TITLE_RESOURCES = new int [] { R.drawable.edit_title_yellow, R.drawable.edit_title_blue, @@ -55,17 +64,17 @@ public class ResourceParser { R.drawable.edit_title_green, R.drawable.edit_title_red }; - + public static int getNoteBgResource(int id) { return BG_EDIT_RESOURCES[id]; } - + public static int getNoteTitleBgResource(int id) { return BG_EDIT_TITLE_RESOURCES[id]; } } - - public static int getDefaultBgId(Context context) { + //直接获取默认的背景颜色。看不太懂，这个PREFERENCE_SET_BG_COLOR_KEY是个final string,也就是说getBoolean肯定执行else，为什么要这么写 + public static int getDefaultBgId(Context context) { if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean( NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) { return (int) (Math.random() * NoteBgResources.BG_EDIT_RESOURCES.length); @@ -73,7 +82,7 @@ public class ResourceParser { return BG_DEFAULT_COLOR; } } - + public static class NoteItemBgResources { private final static int [] BG_FIRST_RESOURCES = new int [] { R.drawable.list_yellow_up, @@ -82,7 +91,7 @@ public class ResourceParser { R.drawable.list_green_up, R.drawable.list_red_up }; - + private final static int [] BG_NORMAL_RESOURCES = new int [] { R.drawable.list_yellow_middle, R.drawable.list_blue_middle, @@ -90,7 +99,7 @@ public class ResourceParser { R.drawable.list_green_middle, R.drawable.list_red_middle }; - + private final static int [] BG_LAST_RESOURCES = new int [] { R.drawable.list_yellow_down, R.drawable.list_blue_down, @@ -98,7 +107,7 @@ public class ResourceParser { R.drawable.list_green_down, R.drawable.list_red_down, }; - + private final static int [] BG_SINGLE_RESOURCES = new int [] { R.drawable.list_yellow_single, R.drawable.list_blue_single, @@ -106,28 +115,28 @@ public class ResourceParser { R.drawable.list_green_single, R.drawable.list_red_single }; - + public static int getNoteBgFirstRes(int id) { return BG_FIRST_RESOURCES[id]; } - + public static int getNoteBgLastRes(int id) { return BG_LAST_RESOURCES[id]; } - + public static int getNoteBgSingleRes(int id) { return BG_SINGLE_RESOURCES[id]; } - + public static int getNoteBgNormalRes(int id) { return BG_NORMAL_RESOURCES[id]; } - + public static int getFolderBgRes() { return R.drawable.list_folder; } } - + public static class WidgetBgResources { private final static int [] BG_2X_RESOURCES = new int [] { R.drawable.widget_2x_yellow, @@ -136,11 +145,11 @@ public class ResourceParser { R.drawable.widget_2x_green, R.drawable.widget_2x_red, }; - + public static int getWidget2xBgResource(int id) { return BG_2X_RESOURCES[id]; } - + private final static int [] BG_4X_RESOURCES = new int [] { R.drawable.widget_4x_yellow, R.drawable.widget_4x_blue, @@ -148,12 +157,12 @@ public class ResourceParser { R.drawable.widget_4x_green, R.drawable.widget_4x_red }; - + public static int getWidget4xBgResource(int id) { return BG_4X_RESOURCES[id]; } } - + public static class TextAppearanceResources { private final static int [] TEXTAPPEARANCE_RESOURCES = new int [] { R.style.TextAppearanceNormal, @@ -161,7 +170,8 @@ public class ResourceParser { R.style.TextAppearanceLarge, R.style.TextAppearanceSuper }; - + + //这里有一个容错的函数，防止输入的id大于资源总量，若如此，则自动返回默认的设置结果 public static int getTexAppearanceResource(int id) { /** * HACKME: Fix bug of store the resource id in shared preference. @@ -173,9 +183,9 @@ public class ResourceParser { } return TEXTAPPEARANCE_RESOURCES[id]; } - + public static int getResourcesSize() { return TEXTAPPEARANCE_RESOURCES.length; } } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/AlarmAlertActivity.java b/src/Notes-master/src/net/micode/notes/ui/AlarmAlertActivity.java index 85723be..af5df76 100644 --- a/src/Notes-master/src/net/micode/notes/ui/AlarmAlertActivity.java +++ b/src/Notes-master/src/net/micode/notes/ui/AlarmAlertActivity.java @@ -15,7 +15,7 @@ */ package net.micode.notes.ui; - + import android.app.Activity; import android.app.AlertDialog; import android.content.Context; @@ -32,68 +32,91 @@ import android.os.PowerManager; import android.provider.Settings; import android.view.Window; import android.view.WindowManager; - + import net.micode.notes.R; import net.micode.notes.data.Notes; import net.micode.notes.tool.DataUtils; - + import java.io.IOException; - - + public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener { - private long mNoteId; - private String mSnippet; + private long mNoteId; //文本在数据库存储中的ID号 + private String mSnippet; //闹钟提示时出现的文本片段 private static final int SNIPPET_PREW_MAX_LEN = 60; MediaPlayer mPlayer; - + @Override - protected void onCreate(Bundle savedInstanceState) { + protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); + //Bundle类型的数据与Map类型的数据相似，都是以key-value的形式存储数据的 + //onsaveInstanceState方法是用来保存Activity的状态的 + //能从onCreate的参数savedInsanceState中获得状态数据 requestWindowFeature(Window.FEATURE_NO_TITLE); - + //界面显示——无标题 + final Window win = getWindow(); win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED); - + if (!isScreenOn()) { win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON + //保持窗体点亮 | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON + //将窗体点亮 | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON + //允许窗体点亮时锁屏 | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR); - } - + }//在手机锁屏后如果到了闹钟提示时间，点亮屏幕 + Intent intent = getIntent(); - + try { mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1)); mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId); + //根据ID从数据库中获取标签的内容； + //getContentResolver（）是实现数据共享，实例存储。 mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0, SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info) : mSnippet; + //判断标签片段是否达到符合长度 } catch (IllegalArgumentException e) { e.printStackTrace(); return; } - + /* + try + { + // 代码区 + } + catch(Exception e) + { + // 异常处理 + } + 代码区如果有错误，就会返回所写异常的处理。*/ mPlayer = new MediaPlayer(); if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) { showActionDialog(); + //弹出对话框 playAlarmSound(); + //闹钟提示音激发 } else { finish(); + //完成闹钟动作 } } - + private boolean isScreenOn() { + //判断屏幕是否锁屏，调用系统函数判断，最后返回值是布尔类型 PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); return pm.isScreenOn(); } - + private void playAlarmSound() { + //闹钟提示音激发 Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM); - + //调用系统的铃声管理URI，得到闹钟提示音 int silentModeStreams = Settings.System.getInt(getContentResolver(), Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0); - + if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) { mPlayer.setAudioStreamType(silentModeStreams); } else { @@ -101,12 +124,19 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD } try { mPlayer.setDataSource(this, url); + //方法：setDataSource(Context context, Uri uri) + //解释：无返回值，设置多媒体数据来源【根据 Uri】 mPlayer.prepare(); + //准备同步 mPlayer.setLooping(true); + //设置是否循环播放 mPlayer.start(); + //开始播放 } catch (IllegalArgumentException e) { // TODO Auto-generated catch block e.printStackTrace(); + //e.printStackTrace()函数功能是抛出异常， 还将显示出更深的调用信息 + //System.out.println(e)，这个方法打印出异常，并且输出在哪里出现的异常 } catch (SecurityException e) { // TODO Auto-generated catch block e.printStackTrace(); @@ -118,41 +148,61 @@ public class AlarmAlertActivity extends Activity implements OnClickListener, OnD e.printStackTrace(); } } - + private void showActionDialog() { AlertDialog.Builder dialog = new AlertDialog.Builder(this); + //AlertDialog的构造方法全部是Protected的 + //所以不能直接通过new一个AlertDialog来创建出一个AlertDialog。 + //要创建一个AlertDialog，就要用到AlertDialog.Builder中的create()方法 + //如这里的dialog就是新建了一个AlertDialog dialog.setTitle(R.string.app_name); + //为对话框设置标题 dialog.setMessage(mSnippet); + //为对话框设置内容 dialog.setPositiveButton(R.string.notealert_ok, this); + //给对话框添加"Yes"按钮 if (isScreenOn()) { dialog.setNegativeButton(R.string.notealert_enter, this); - } + }//对话框添加"No"按钮 dialog.show().setOnDismissListener(this); } - + public void onClick(DialogInterface dialog, int which) { switch (which) { + //用which来选择click后下一步的操作 case DialogInterface.BUTTON_NEGATIVE: + //这是取消操作 Intent intent = new Intent(this, NoteEditActivity.class); + //实现两个类间的数据传输 intent.setAction(Intent.ACTION_VIEW); + //设置动作属性 intent.putExtra(Intent.EXTRA_UID, mNoteId); + //实现key-value对 + //EXTRA_UID为key；mNoteId为键 startActivity(intent); + //开始动作 break; default: + //这是确定操作 break; } } - + public void onDismiss(DialogInterface dialog) { + //忽略 stopAlarmSound(); + //停止闹钟声音 finish(); + //完成该动作 } - + private void stopAlarmSound() { if (mPlayer != null) { mPlayer.stop(); + //停止播放 mPlayer.release(); + //释放MediaPlayer对象 mPlayer = null; } } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/AlarmInitReceiver.java b/src/Notes-master/src/net/micode/notes/ui/AlarmInitReceiver.java index f221202..fa75f11 100644 --- a/src/Notes-master/src/net/micode/notes/ui/AlarmInitReceiver.java +++ b/src/Notes-master/src/net/micode/notes/ui/AlarmInitReceiver.java @@ -15,7 +15,7 @@ */ package net.micode.notes.ui; - + import android.app.AlarmManager; import android.app.PendingIntent; import android.content.BroadcastReceiver; @@ -23,30 +23,34 @@ import android.content.ContentUris; import android.content.Context; import android.content.Intent; import android.database.Cursor; - + import net.micode.notes.data.Notes; import net.micode.notes.data.Notes.NoteColumns; - - + + public class AlarmInitReceiver extends BroadcastReceiver { - + private static final String [] PROJECTION = new String [] { NoteColumns.ID, NoteColumns.ALERTED_DATE }; - + //对数据库的操作，调用标签ID和闹钟时间 private static final int COLUMN_ID = 0; private static final int COLUMN_ALERTED_DATE = 1; - + @Override public void onReceive(Context context, Intent intent) { long currentDate = System.currentTimeMillis(); + //System.currentTimeMillis()产生一个当前的毫秒 + //这个毫秒其实就是自1970年1月1日0时起的毫秒数 Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI, PROJECTION, NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE, new String[] { String.valueOf(currentDate) }, + //将long变量currentDate转化为字符串 null); - + //Cursor在这里的作用是通过查找数据库中的标签内容，找到和当前系统时间相等的标签 + if (c != null) { if (c.moveToFirst()) { do { @@ -61,5 +65,8 @@ public class AlarmInitReceiver extends BroadcastReceiver { } c.close(); } + //然而通过网上查找资料发现，对于闹钟机制的启动，通常需要上面的几个步骤 + //如新建Intent、PendingIntent以及AlarmManager等 + //这里就是根据数据库里的闹钟时间创建一个闹钟机制 } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/AlarmReceiver.java b/src/Notes-master/src/net/micode/notes/ui/AlarmReceiver.java index 54e503b..59f1eb3 100644 --- a/src/Notes-master/src/net/micode/notes/ui/AlarmReceiver.java +++ b/src/Notes-master/src/net/micode/notes/ui/AlarmReceiver.java @@ -15,16 +15,22 @@ */ package net.micode.notes.ui; - + import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; - + public class AlarmReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { - intent.setClass(context, AlarmAlertActivity.class); + intent.setClass(context, AlarmAlertActivity.class); + //启动AlarmAlertActivity intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); + //activity要存在于activity的栈中，而非activity的途径启动activity时必然不存在一个activity的栈 + //所以要新起一个栈装入启动的activity context.startActivity(intent); } } +//这是实现alarm这个功能最接近用户层的包，基于上面的两个包， +//作用还需要深究但是对于setClass和addFlags的 + \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/DateTimePicker.java b/src/Notes-master/src/net/micode/notes/ui/DateTimePicker.java index 496b0cd..4def445 100644 --- a/src/Notes-master/src/net/micode/notes/ui/DateTimePicker.java +++ b/src/Notes-master/src/net/micode/notes/ui/DateTimePicker.java @@ -15,23 +15,24 @@ */ package net.micode.notes.ui; - + import java.text.DateFormatSymbols; import java.util.Calendar; - + import net.micode.notes.R; - - + + import android.content.Context; import android.text.format.DateFormat; import android.view.View; import android.widget.FrameLayout; import android.widget.NumberPicker; - + public class DateTimePicker extends FrameLayout { - + //FrameLayout是布局模板之一 + //所有的子元素全部在屏幕的右上方 private static final boolean DEFAULT_ENABLE_STATE = true; - + private static final int HOURS_IN_HALF_DAY = 12; private static final int HOURS_IN_ALL_DAY = 24; private static final int DAYS_IN_ALL_WEEK = 7; @@ -45,25 +46,27 @@ public class DateTimePicker extends FrameLayout { private static final int MINUT_SPINNER_MAX_VAL = 59; private static final int AMPM_SPINNER_MIN_VAL = 0; private static final int AMPM_SPINNER_MAX_VAL = 1; - + //初始化控件 private final NumberPicker mDateSpinner; private final NumberPicker mHourSpinner; private final NumberPicker mMinuteSpinner; private final NumberPicker mAmPmSpinner; + //NumberPicker是数字选择器 + //这里定义的四个变量全部是在设置闹钟时需要选择的变量（如日期、时、分、上午或者下午） private Calendar mDate; - + //定义了Calendar类型的变量mDate，用于操作时间 private String[] mDateDisplayValues = new String[DAYS_IN_ALL_WEEK]; - + private boolean mIsAm; - + private boolean mIs24HourView; - + private boolean mIsEnabled = DEFAULT_ENABLE_STATE; - + private boolean mInitialising; - + private OnDateTimeChangedListener mOnDateTimeChangedListener; - + private NumberPicker.OnValueChangeListener mOnDateChangedListener = new NumberPicker.OnValueChangeListener() { @Override public void onValueChange(NumberPicker picker, int oldVal, int newVal) { @@ -71,41 +74,49 @@ public class DateTimePicker extends FrameLayout { updateDateControl(); onDateTimeChanged(); } - }; - + };//OnValueChangeListener，这是时间改变监听器，这里主要是对日期的监听 + //将现在日期的值传递给mDate；updateDateControl是同步操作 + private NumberPicker.OnValueChangeListener mOnHourChangedListener = new NumberPicker.OnValueChangeListener() { - @Override + //这里是对 小时（Hour） 的监听 + @Override public void onValueChange(NumberPicker picker, int oldVal, int newVal) { boolean isDateChanged = false; Calendar cal = Calendar.getInstance(); + //声明一个Calendar的变量cal，便于后续的操作 if (!mIs24HourView) { if (!mIsAm && oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY) { cal.setTimeInMillis(mDate.getTimeInMillis()); cal.add(Calendar.DAY_OF_YEAR, 1); isDateChanged = true; + //这里是对于12小时制时，晚上11点和12点交替时对日期的更改 } else if (mIsAm && oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) { cal.setTimeInMillis(mDate.getTimeInMillis()); cal.add(Calendar.DAY_OF_YEAR, -1); isDateChanged = true; - } + } + //这里是对于12小时制时，凌晨11点和12点交替时对日期的更改 if (oldVal == HOURS_IN_HALF_DAY - 1 && newVal == HOURS_IN_HALF_DAY || oldVal == HOURS_IN_HALF_DAY && newVal == HOURS_IN_HALF_DAY - 1) { mIsAm = !mIsAm; updateAmPmControl(); - } + }//这里是对于12小时制时，中午11点和12点交替时对AM和PM的更改 } else { if (oldVal == HOURS_IN_ALL_DAY - 1 && newVal == 0) { cal.setTimeInMillis(mDate.getTimeInMillis()); cal.add(Calendar.DAY_OF_YEAR, 1); isDateChanged = true; + //这里是对于24小时制时，晚上11点和12点交替时对日期的更改 } else if (oldVal == 0 && newVal == HOURS_IN_ALL_DAY - 1) { cal.setTimeInMillis(mDate.getTimeInMillis()); cal.add(Calendar.DAY_OF_YEAR, -1); isDateChanged = true; } - } + } //这里是对于12小时制时，凌晨11点和12点交替时对日期的更改 int newHour = mHourSpinner.getValue() % HOURS_IN_HALF_DAY + (mIsAm ? 0 : HOURS_IN_HALF_DAY); + //通过数字选择器对newHour的赋值 mDate.set(Calendar.HOUR_OF_DAY, newHour); + //通过set函数将新的Hour值传给mDate onDateTimeChanged(); if (isDateChanged) { setCurrentYear(cal.get(Calendar.YEAR)); @@ -114,18 +125,22 @@ public class DateTimePicker extends FrameLayout { } } }; - + private NumberPicker.OnValueChangeListener mOnMinuteChangedListener = new NumberPicker.OnValueChangeListener() { @Override + //这里是对 分钟（Minute）改变的监听 public void onValueChange(NumberPicker picker, int oldVal, int newVal) { int minValue = mMinuteSpinner.getMinValue(); int maxValue = mMinuteSpinner.getMaxValue(); int offset = 0; + //设置offset，作为小时改变的一个记录数据 if (oldVal == maxValue && newVal == minValue) { offset += 1; } else if (oldVal == minValue && newVal == maxValue) { offset -= 1; } + //如果原值为59，新值为0，则offset加1 + //如果原值为0，新值为59，则offset减1 if (offset != 0) { mDate.add(Calendar.HOUR_OF_DAY, offset); mHourSpinner.setValue(getCurrentHour()); @@ -143,9 +158,10 @@ public class DateTimePicker extends FrameLayout { onDateTimeChanged(); } }; - + private NumberPicker.OnValueChangeListener mOnAmPmChangedListener = new NumberPicker.OnValueChangeListener() { - @Override + //对AM和PM的监听 + @Override public void onValueChange(NumberPicker picker, int oldVal, int newVal) { mIsAm = !mIsAm; if (mIsAm) { @@ -157,63 +173,66 @@ public class DateTimePicker extends FrameLayout { onDateTimeChanged(); } }; - + public interface OnDateTimeChangedListener { void onDateTimeChanged(DateTimePicker view, int year, int month, int dayOfMonth, int hourOfDay, int minute); } - + public DateTimePicker(Context context) { this(context, System.currentTimeMillis()); - } - + }//通过对数据库的访问，获取当前的系统时间 + public DateTimePicker(Context context, long date) { this(context, date, DateFormat.is24HourFormat(context)); - } - + }//上面函数的得到的是一个天文数字（1970至今的秒数），需要DateFormat将其变得有意义 + public DateTimePicker(Context context, long date, boolean is24HourView) { super(context); + //获取系统时间 mDate = Calendar.getInstance(); mInitialising = true; mIsAm = getCurrentHourOfDay() >= HOURS_IN_HALF_DAY; inflate(context, R.layout.datetime_picker, this); - + //如果当前Activity里用到别的layout，比如对话框layout + //还要设置这个layout上的其他组件的内容，就必须用inflate()方法先将对话框的layout找出来 + //然后再用findViewById()找到它上面的其它组件 mDateSpinner = (NumberPicker) findViewById(R.id.date); mDateSpinner.setMinValue(DATE_SPINNER_MIN_VAL); mDateSpinner.setMaxValue(DATE_SPINNER_MAX_VAL); mDateSpinner.setOnValueChangedListener(mOnDateChangedListener); - + mHourSpinner = (NumberPicker) findViewById(R.id.hour); mHourSpinner.setOnValueChangedListener(mOnHourChangedListener); - mMinuteSpinner = (NumberPicker) findViewById(R.id.minute); - mMinuteSpinner.setMinValue(MINUT_SPINNER_MIN_VAL); + mMinuteSpinner = (NumberPicker) findViewById(R.id.minute); + mMinuteSpinner.setMinValue(MINUT_SPINNER_MIN_VAL); mMinuteSpinner.setMaxValue(MINUT_SPINNER_MAX_VAL); mMinuteSpinner.setOnLongPressUpdateInterval(100); mMinuteSpinner.setOnValueChangedListener(mOnMinuteChangedListener); - + String[] stringsForAmPm = new DateFormatSymbols().getAmPmStrings(); mAmPmSpinner = (NumberPicker) findViewById(R.id.amPm); mAmPmSpinner.setMinValue(AMPM_SPINNER_MIN_VAL); mAmPmSpinner.setMaxValue(AMPM_SPINNER_MAX_VAL); mAmPmSpinner.setDisplayedValues(stringsForAmPm); mAmPmSpinner.setOnValueChangedListener(mOnAmPmChangedListener); - + // update controls to initial state updateDateControl(); updateHourControl(); updateAmPmControl(); - + set24HourView(is24HourView); - + // set to current time setCurrentDate(date); - + setEnabled(isEnabled()); - + // set the content descriptions mInitialising = false; } - + @Override public void setEnabled(boolean enabled) { if (mIsEnabled == enabled) { @@ -226,12 +245,14 @@ public class DateTimePicker extends FrameLayout { mAmPmSpinner.setEnabled(enabled); mIsEnabled = enabled; } - + //存在疑问！！！！！！！！！！！！！setEnabled的作用 + //下面的代码通过原程序的注释已经比较清晰，另外可以通过函数名来判断 + //下面的各函数主要是对上面代码引用到的各函数功能的实现 @Override public boolean isEnabled() { return mIsEnabled; } - + /** * Get the current date in millis * @@ -239,8 +260,8 @@ public class DateTimePicker extends FrameLayout { */ public long getCurrentDateInTimeMillis() { return mDate.getTimeInMillis(); - } - + }//实现函数——得到当前的秒数 + /** * Set the current date * @@ -251,8 +272,8 @@ public class DateTimePicker extends FrameLayout { cal.setTimeInMillis(date); setCurrentDate(cal.get(Calendar.YEAR), cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH), cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE)); - } - + }//实现函数功能——设置当前的时间，参数是date + /** * Set the current date * @@ -269,17 +290,18 @@ public class DateTimePicker extends FrameLayout { setCurrentDay(dayOfMonth); setCurrentHour(hourOfDay); setCurrentMinute(minute); - } - + }//实现函数功能——设置当前的时间，参数是各详细的变量 + /** * Get current year * * @return The current year */ + //下面是得到year、month、day等值 public int getCurrentYear() { return mDate.get(Calendar.YEAR); } - + /** * Set current year * @@ -293,7 +315,7 @@ public class DateTimePicker extends FrameLayout { updateDateControl(); onDateTimeChanged(); } - + /** * Get current month in the year * @@ -302,7 +324,7 @@ public class DateTimePicker extends FrameLayout { public int getCurrentMonth() { return mDate.get(Calendar.MONTH); } - + /** * Set current month in the year * @@ -316,7 +338,7 @@ public class DateTimePicker extends FrameLayout { updateDateControl(); onDateTimeChanged(); } - + /** * Get current day of the month * @@ -325,7 +347,7 @@ public class DateTimePicker extends FrameLayout { public int getCurrentDay() { return mDate.get(Calendar.DAY_OF_MONTH); } - + /** * Set current day of the month * @@ -339,7 +361,7 @@ public class DateTimePicker extends FrameLayout { updateDateControl(); onDateTimeChanged(); } - + /** * Get current hour in 24 hour mode, in the range (0~23) * @return The current hour in 24 hour mode @@ -347,7 +369,7 @@ public class DateTimePicker extends FrameLayout { public int getCurrentHourOfDay() { return mDate.get(Calendar.HOUR_OF_DAY); } - + private int getCurrentHour() { if (mIs24HourView){ return getCurrentHourOfDay(); @@ -360,7 +382,7 @@ public class DateTimePicker extends FrameLayout { } } } - + /** * Set current hour in 24 hour mode, in the range (0~23) * @@ -388,7 +410,7 @@ public class DateTimePicker extends FrameLayout { mHourSpinner.setValue(hourOfDay); onDateTimeChanged(); } - + /** * Get currentMinute * @@ -397,7 +419,7 @@ public class DateTimePicker extends FrameLayout { public int getCurrentMinute() { return mDate.get(Calendar.MINUTE); } - + /** * Set current minute */ @@ -409,14 +431,14 @@ public class DateTimePicker extends FrameLayout { mDate.set(Calendar.MINUTE, minute); onDateTimeChanged(); } - + /** * @return true if this is in 24 hour view else false. */ public boolean is24HourView () { return mIs24HourView; } - + /** * Set whether in 24 hour or AM/PM mode. * @@ -433,7 +455,7 @@ public class DateTimePicker extends FrameLayout { setCurrentHour(hour); updateAmPmControl(); } - + private void updateDateControl() { Calendar cal = Calendar.getInstance(); cal.setTimeInMillis(mDate.getTimeInMillis()); @@ -446,8 +468,8 @@ public class DateTimePicker extends FrameLayout { mDateSpinner.setDisplayedValues(mDateDisplayValues); mDateSpinner.setValue(DAYS_IN_ALL_WEEK / 2); mDateSpinner.invalidate(); - } - + }// 对于星期几的算法 + private void updateAmPmControl() { if (mIs24HourView) { mAmPmSpinner.setVisibility(View.GONE); @@ -455,9 +477,9 @@ public class DateTimePicker extends FrameLayout { int index = mIsAm ? Calendar.AM : Calendar.PM; mAmPmSpinner.setValue(index); mAmPmSpinner.setVisibility(View.VISIBLE); - } + }// 对于上下午操作的算法 } - + private void updateHourControl() { if (mIs24HourView) { mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_24_HOUR_VIEW); @@ -465,9 +487,9 @@ public class DateTimePicker extends FrameLayout { } else { mHourSpinner.setMinValue(HOUR_SPINNER_MIN_VAL_12_HOUR_VIEW); mHourSpinner.setMaxValue(HOUR_SPINNER_MAX_VAL_12_HOUR_VIEW); - } + }// 对与小时的算法 } - + /** * Set the callback that indicates the 'Set' button has been pressed. * @param callback the callback, if null will do nothing @@ -475,11 +497,11 @@ public class DateTimePicker extends FrameLayout { public void setOnDateTimeChangedListener(OnDateTimeChangedListener callback) { mOnDateTimeChangedListener = callback; } - + private void onDateTimeChanged() { if (mOnDateTimeChangedListener != null) { mOnDateTimeChangedListener.onDateTimeChanged(this, getCurrentYear(), getCurrentMonth(), getCurrentDay(), getCurrentHourOfDay(), getCurrentMinute()); - } + } } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/DateTimePickerDialog.java b/src/Notes-master/src/net/micode/notes/ui/DateTimePickerDialog.java index 2c47ba4..00a2409 100644 --- a/src/Notes-master/src/net/micode/notes/ui/DateTimePickerDialog.java +++ b/src/Notes-master/src/net/micode/notes/ui/DateTimePickerDialog.java @@ -15,35 +15,42 @@ */ package net.micode.notes.ui; - + import java.util.Calendar; - + import net.micode.notes.R; import net.micode.notes.ui.DateTimePicker; import net.micode.notes.ui.DateTimePicker.OnDateTimeChangedListener; - + import android.app.AlertDialog; import android.content.Context; import android.content.DialogInterface; import android.content.DialogInterface.OnClickListener; import android.text.format.DateFormat; import android.text.format.DateUtils; - + public class DateTimePickerDialog extends AlertDialog implements OnClickListener { - + private Calendar mDate = Calendar.getInstance(); + //创建一个Calendar类型的变量 mDate，方便时间的操作 private boolean mIs24HourView; private OnDateTimeSetListener mOnDateTimeSetListener; + //声明一个时间日期滚动选择控件 mOnDateTimeSetListener private DateTimePicker mDateTimePicker; - + //DateTimePicker控件，控件一般用于让用户可以从日期列表中选择单个值。 + //运行时，单击控件边上的下拉箭头，会显示为两个部分：一个下拉列表，一个用于选择日期的 + public interface OnDateTimeSetListener { void OnDateTimeSet(AlertDialog dialog, long date); } - + public DateTimePickerDialog(Context context, long date) { + //对该界面对话框的实例化 super(context); + //对数据库的操作 mDateTimePicker = new DateTimePicker(context); setView(mDateTimePicker); + //添加一个子视图 mDateTimePicker.setOnDateTimeChangedListener(new OnDateTimeChangedListener() { public void onDateTimeChanged(DateTimePicker view, int year, int month, int dayOfMonth, int hourOfDay, int minute) { @@ -52,26 +59,31 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener mDate.set(Calendar.DAY_OF_MONTH, dayOfMonth); mDate.set(Calendar.HOUR_OF_DAY, hourOfDay); mDate.set(Calendar.MINUTE, minute); + //将视图中的各选项设置为系统当前时间 updateTitle(mDate.getTimeInMillis()); } }); mDate.setTimeInMillis(date); + //得到系统时间 mDate.set(Calendar.SECOND, 0); + //将秒数设置为0 mDateTimePicker.setCurrentDate(mDate.getTimeInMillis()); setButton(context.getString(R.string.datetime_dialog_ok), this); setButton2(context.getString(R.string.datetime_dialog_cancel), (OnClickListener)null); + //设置按钮 set24HourView(DateFormat.is24HourFormat(this.getContext())); + //时间标准化打印 updateTitle(mDate.getTimeInMillis()); } - + public void set24HourView(boolean is24HourView) { mIs24HourView = is24HourView; } - + public void setOnDateTimeSetListener(OnDateTimeSetListener callBack) { mOnDateTimeSetListener = callBack; - } - + }//将时间日期滚动选择控件实例化 + private void updateTitle(long date) { int flag = DateUtils.FORMAT_SHOW_YEAR | @@ -79,12 +91,13 @@ public class DateTimePickerDialog extends AlertDialog implements OnClickListener DateUtils.FORMAT_SHOW_TIME; flag |= mIs24HourView ? DateUtils.FORMAT_24HOUR : DateUtils.FORMAT_24HOUR; setTitle(DateUtils.formatDateTime(this.getContext(), date, flag)); - } - + }//android开发中常见日期管理工具类（API）——DateUtils：按照上下午显示时间 + public void onClick(DialogInterface arg0, int arg1) { if (mOnDateTimeSetListener != null) { mOnDateTimeSetListener.OnDateTimeSet(this, mDate.getTimeInMillis()); } - } - + }//第一个参数arg0是接收到点击事件的对话框 + //第二个参数arg1是该对话框上的按钮 + } \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/DropdownMenu.java b/src/Notes-master/src/net/micode/notes/ui/DropdownMenu.java index 613dc74..a5520b2 100644 --- a/src/Notes-master/src/net/micode/notes/ui/DropdownMenu.java +++ b/src/Notes-master/src/net/micode/notes/ui/DropdownMenu.java @@ -15,7 +15,7 @@ */ package net.micode.notes.ui; - + import android.content.Context; import android.view.Menu; import android.view.MenuItem; @@ -24,38 +24,42 @@ import android.view.View.OnClickListener; import android.widget.Button; import android.widget.PopupMenu; import android.widget.PopupMenu.OnMenuItemClickListener; - + import net.micode.notes.R; - + public class DropdownMenu { private Button mButton; private PopupMenu mPopupMenu; + //声明一个下拉菜单 private Menu mMenu; - + public DropdownMenu(Context context, Button button, int menuId) { mButton = button; mButton.setBackgroundResource(R.drawable.dropdown_icon); + //设置这个view的背景 mPopupMenu = new PopupMenu(context, mButton); mMenu = mPopupMenu.getMenu(); mPopupMenu.getMenuInflater().inflate(menuId, mMenu); + //MenuInflater是用来实例化Menu目录下的Menu布局文件 + //根据ID来确认menu的内容选项 mButton.setOnClickListener(new OnClickListener() { public void onClick(View v) { mPopupMenu.show(); } }); } - + public void setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener) { if (mPopupMenu != null) { mPopupMenu.setOnMenuItemClickListener(listener); - } + }//设置菜单的监听 } - + public MenuItem findItem(int id) { return mMenu.findItem(id); - } - + }//对于菜单选项的初始化，根据索引搜索菜单需要的选项 + public void setTitle(CharSequence title) { mButton.setText(title); - } -} + }//布局文件，设置标题 +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/FoldersListAdapter.java b/src/Notes-master/src/net/micode/notes/ui/FoldersListAdapter.java index 96b77da..2c35db4 100644 --- a/src/Notes-master/src/net/micode/notes/ui/FoldersListAdapter.java +++ b/src/Notes-master/src/net/micode/notes/ui/FoldersListAdapter.java @@ -15,7 +15,7 @@ */ package net.micode.notes.ui; - + import android.content.Context; import android.database.Cursor; import android.view.View; @@ -23,31 +23,36 @@ import android.view.ViewGroup; import android.widget.CursorAdapter; import android.widget.LinearLayout; import android.widget.TextView; - + import net.micode.notes.R; import net.micode.notes.data.Notes; import net.micode.notes.data.Notes.NoteColumns; - - + + public class FoldersListAdapter extends CursorAdapter { + //CursorAdapter是Cursor和ListView的接口 + //FoldersListAdapter继承了CursorAdapter的类 + //主要作用是便签数据库和用户的交互 + //这里就是用folder（文件夹）的形式展现给用户 public static final String [] PROJECTION = { NoteColumns.ID, NoteColumns.SNIPPET - }; - + };//调用数据库中便签的ID和片段 + public static final int ID_COLUMN = 0; public static final int NAME_COLUMN = 1; - + public FoldersListAdapter(Context context, Cursor c) { super(context, c); // TODO Auto-generated constructor stub - } - + }//数据库操作 + @Override public View newView(Context context, Cursor cursor, ViewGroup parent) { - return new FolderListItem(context); - } - + //ViewGroup是容器 + return new FolderListItem(context); + }//创建一个文件夹，对于各文件夹中子标签的初始化 + @Override public void bindView(View view, Context context, Cursor cursor) { if (view instanceof FolderListItem) { @@ -55,26 +60,28 @@ public class FoldersListAdapter extends CursorAdapter { .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN); ((FolderListItem) view).bind(folderName); } - } - + }//将各个布局文件绑定起来 + public String getFolderName(Context context, int position) { Cursor cursor = (Cursor) getItem(position); return (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN); - } - + }//根据数据库中标签的ID得到标签的各项内容 + private class FolderListItem extends LinearLayout { private TextView mName; - + public FolderListItem(Context context) { super(context); + //操作数据库 inflate(context, R.layout.folder_list_item, this); + //根据布局文件的名字等信息将其找出来 mName = (TextView) findViewById(R.id.tv_folder_name); } - + public void bind(String name) { mName.setText(name); } } - -} + +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/NoteEditActivity.java b/src/Notes-master/src/net/micode/notes/ui/NoteEditActivity.java index 96a9ff8..3426c8a 100644 --- a/src/Notes-master/src/net/micode/notes/ui/NoteEditActivity.java +++ b/src/Notes-master/src/net/micode/notes/ui/NoteEditActivity.java @@ -15,7 +15,7 @@ */ package net.micode.notes.ui; - + import android.app.Activity; import android.app.AlarmManager; import android.app.AlertDialog; @@ -51,7 +51,7 @@ import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.TextView; import android.widget.Toast; - + import net.micode.notes.R; import net.micode.notes.data.Notes; import net.micode.notes.data.Notes.TextNote; @@ -64,26 +64,28 @@ import net.micode.notes.ui.DateTimePickerDialog.OnDateTimeSetListener; import net.micode.notes.ui.NoteEditText.OnTextViewChangeListener; import net.micode.notes.widget.NoteWidgetProvider_2x; import net.micode.notes.widget.NoteWidgetProvider_4x; - + import java.util.HashMap; import java.util.HashSet; import java.util.Map; import java.util.regex.Matcher; import java.util.regex.Pattern; - - + + public class NoteEditActivity extends Activity implements OnClickListener, NoteSettingChangedListener, OnTextViewChangeListener { + //该类主要是针对标签的编辑 + //继承了系统内部许多和监听有关的类 private class HeadViewHolder { public TextView tvModified; - + public ImageView ivAlertIcon; - + public TextView tvAlertDate; - + public ImageView ibSetBgColor; } - + //使用Map实现数据存储 private static final Map sBgSelectorBtnsMap = new HashMap(); static { sBgSelectorBtnsMap.put(R.id.iv_bg_yellow, ResourceParser.YELLOW); @@ -91,8 +93,9 @@ public class NoteEditActivity extends Activity implements OnClickListener, sBgSelectorBtnsMap.put(R.id.iv_bg_blue, ResourceParser.BLUE); sBgSelectorBtnsMap.put(R.id.iv_bg_green, ResourceParser.GREEN); sBgSelectorBtnsMap.put(R.id.iv_bg_white, ResourceParser.WHITE); + //put函数是将指定值和指定键相连 } - + private static final Map sBgSelectorSelectionMap = new HashMap(); static { sBgSelectorSelectionMap.put(ResourceParser.YELLOW, R.id.iv_bg_yellow_select); @@ -100,67 +103,73 @@ public class NoteEditActivity extends Activity implements OnClickListener, sBgSelectorSelectionMap.put(ResourceParser.BLUE, R.id.iv_bg_blue_select); sBgSelectorSelectionMap.put(ResourceParser.GREEN, R.id.iv_bg_green_select); sBgSelectorSelectionMap.put(ResourceParser.WHITE, R.id.iv_bg_white_select); + //put函数是将指定值和指定键相连 } - + private static final Map sFontSizeBtnsMap = new HashMap(); static { sFontSizeBtnsMap.put(R.id.ll_font_large, ResourceParser.TEXT_LARGE); sFontSizeBtnsMap.put(R.id.ll_font_small, ResourceParser.TEXT_SMALL); sFontSizeBtnsMap.put(R.id.ll_font_normal, ResourceParser.TEXT_MEDIUM); sFontSizeBtnsMap.put(R.id.ll_font_super, ResourceParser.TEXT_SUPER); + //put函数是将指定值和指定键相连 } - + private static final Map sFontSelectorSelectionMap = new HashMap(); static { sFontSelectorSelectionMap.put(ResourceParser.TEXT_LARGE, R.id.iv_large_select); sFontSelectorSelectionMap.put(ResourceParser.TEXT_SMALL, R.id.iv_small_select); sFontSelectorSelectionMap.put(ResourceParser.TEXT_MEDIUM, R.id.iv_medium_select); sFontSelectorSelectionMap.put(ResourceParser.TEXT_SUPER, R.id.iv_super_select); + //put函数是将指定值和指定键相连 } - + private static final String TAG = "NoteEditActivity"; - + private HeadViewHolder mNoteHeaderHolder; - + private View mHeadViewPanel; - + //私有化一个界面操作mHeadViewPanel，对表头的操作 private View mNoteBgColorSelector; - + //私有化一个界面操作mNoteBgColorSelector，对背景颜色的操作 private View mFontSizeSelector; - + //私有化一个界面操作mFontSizeSelector，对标签字体的操作 private EditText mNoteEditor; - + //声明编辑控件，对文本操作 private View mNoteEditorPanel; - - private WorkingNote mWorkingNote; - + //私有化一个界面操作mNoteEditorPanel，文本编辑的控制板 + //private WorkingNote mWorkingNote; + public WorkingNote mWorkingNote; + //对模板WorkingNote的初始化 private SharedPreferences mSharedPrefs; + //私有化SharedPreferences的数据存储方式 + //它的本质是基于XML文件存储key-value键值对数据 private int mFontSizeId; - + //用于操作字体的大小 private static final String PREFERENCE_FONT_SIZE = "pref_font_size"; - + private static final int SHORTCUT_ICON_TITLE_MAX_LEN = 10; - + public static final String TAG_CHECKED = String.valueOf('\u221A'); public static final String TAG_UNCHECKED = String.valueOf('\u25A1'); - + private LinearLayout mEditTextList; - + //线性布局 private String mUserQuery; private Pattern mPattern; - + @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.setContentView(R.layout.note_edit); - + //对数据库的访问操作 if (savedInstanceState == null && !initActivityState(getIntent())) { finish(); return; } initResources(); } - + /** * Current activity may be killed when the memory is low. Once it is killed, for another time * user load this activity, we should restore the former state @@ -176,9 +185,9 @@ public class NoteEditActivity extends Activity implements OnClickListener, return; } Log.d(TAG, "Restoring from killed activity"); - } + }//为防止内存不足时程序的终止，在这里有一个保存现场的函数 } - + private boolean initActivityState(Intent intent) { /** * If the user specified the {@link Intent#ACTION_VIEW} but not provided with id, @@ -188,34 +197,42 @@ public class NoteEditActivity extends Activity implements OnClickListener, if (TextUtils.equals(Intent.ACTION_VIEW, intent.getAction())) { long noteId = intent.getLongExtra(Intent.EXTRA_UID, 0); mUserQuery = ""; - + //如果用户实例化标签时，系统并未给出标签ID /** * Starting from the searched result */ + //根据键值查找ID if (intent.hasExtra(SearchManager.EXTRA_DATA_KEY)) { noteId = Long.parseLong(intent.getStringExtra(SearchManager.EXTRA_DATA_KEY)); mUserQuery = intent.getStringExtra(SearchManager.USER_QUERY); } - + //如果ID在数据库中未找到 if (!DataUtils.visibleInNoteDatabase(getContentResolver(), noteId, Notes.TYPE_NOTE)) { Intent jump = new Intent(this, NotesListActivity.class); startActivity(jump); + //程序将跳转到上面声明的intent——jump showToast(R.string.error_note_not_exist); finish(); return false; - } else { + } + //ID在数据库中找到 + else { mWorkingNote = WorkingNote.load(this, noteId); if (mWorkingNote == null) { Log.e(TAG, "load note failed with note id" + noteId); + //打印出红色的错误信息 finish(); return false; } } + //setSoftInputMode——软键盘输入模式 getWindow().setSoftInputMode( WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN | WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE); } else if(TextUtils.equals(Intent.ACTION_INSERT_OR_EDIT, intent.getAction())) { - // New note + // intent.getAction() + // 大多用于broadcast发送广播时给机制（intent）设置一个action，就是一个字符串 + // 用户可以通过receive（接受）intent，通过 getAction得到的字符串，来决定做什么 long folderId = intent.getLongExtra(Notes.INTENT_EXTRA_FOLDER_ID, 0); int widgetId = intent.getIntExtra(Notes.INTENT_EXTRA_WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID); @@ -223,7 +240,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, Notes.TYPE_WIDGET_INVALIDE); int bgResId = intent.getIntExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, ResourceParser.getDefaultBgId(this)); - + // intent.getInt（Long、String）Extra是对各变量的语法分析 // Parse call-record note String phoneNumber = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER); long callDate = intent.getLongExtra(Notes.INTENT_EXTRA_CALL_DATE, 0); @@ -240,16 +257,18 @@ public class NoteEditActivity extends Activity implements OnClickListener, finish(); return false; } + //将电话号码与手机的号码簿相关 } else { mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType, bgResId); mWorkingNote.convertToCallNote(phoneNumber, callDate); + // } } else { mWorkingNote = WorkingNote.createEmptyNote(this, folderId, widgetId, widgetType, bgResId); - } - + }//创建一个新的WorkingNote + getWindow().setSoftInputMode( WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE | WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE); @@ -261,16 +280,18 @@ public class NoteEditActivity extends Activity implements OnClickListener, mWorkingNote.setOnSettingStatusChangedListener(this); return true; } - + @Override protected void onResume() { super.onResume(); initNoteScreen(); } - + private void initNoteScreen() { + //对界面的初始化操作 mNoteEditor.setTextAppearance(this, TextAppearanceResources .getTexAppearanceResource(mFontSizeId)); + //设置外观 if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { switchToListMode(mWorkingNote.getContent()); } else { @@ -282,42 +303,45 @@ public class NoteEditActivity extends Activity implements OnClickListener, } mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId()); mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId()); - + mNoteHeaderHolder.tvModified.setText(DateUtils.formatDateTime(this, mWorkingNote.getModifiedDate(), DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_NUMERIC_DATE | DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_SHOW_YEAR)); - + /** * TODO: Add the menu for setting alert. Currently disable it because the DateTimePicker * is not ready */ showAlertHeader(); } - + //设置闹钟的显示 private void showAlertHeader() { if (mWorkingNote.hasClockAlert()) { long time = System.currentTimeMillis(); if (time > mWorkingNote.getAlertDate()) { mNoteHeaderHolder.tvAlertDate.setText(R.string.note_alert_expired); - } else { + } + //如果系统时间大于了闹钟设置的时间，那么闹钟失效 + else { mNoteHeaderHolder.tvAlertDate.setText(DateUtils.getRelativeTimeSpanString( mWorkingNote.getAlertDate(), time, DateUtils.MINUTE_IN_MILLIS)); } mNoteHeaderHolder.tvAlertDate.setVisibility(View.VISIBLE); mNoteHeaderHolder.ivAlertIcon.setVisibility(View.VISIBLE); + //显示闹钟开启的图标 } else { mNoteHeaderHolder.tvAlertDate.setVisibility(View.GONE); mNoteHeaderHolder.ivAlertIcon.setVisibility(View.GONE); }; } - + @Override protected void onNewIntent(Intent intent) { super.onNewIntent(intent); initActivityState(intent); } - + @Override protected void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); @@ -329,26 +353,29 @@ public class NoteEditActivity extends Activity implements OnClickListener, if (!mWorkingNote.existInDatabase()) { saveNote(); } + //在创建一个新的标签时，先在数据库中匹配 + //如果不存在，那么先在数据库中存储 outState.putLong(Intent.EXTRA_UID, mWorkingNote.getNoteId()); Log.d(TAG, "Save working note id: " + mWorkingNote.getNoteId() + " onSaveInstanceState"); } - + @Override + //MotionEvent是对屏幕触控的传递机制 public boolean dispatchTouchEvent(MotionEvent ev) { if (mNoteBgColorSelector.getVisibility() == View.VISIBLE && !inRangeOfView(mNoteBgColorSelector, ev)) { mNoteBgColorSelector.setVisibility(View.GONE); return true; - } - + }//颜色选择器在屏幕上可见 + if (mFontSizeSelector.getVisibility() == View.VISIBLE && !inRangeOfView(mFontSizeSelector, ev)) { mFontSizeSelector.setVisibility(View.GONE); return true; - } + }//字体大小选择器在屏幕上可见 return super.dispatchTouchEvent(ev); } - + //对屏幕触控的坐标进行操作 private boolean inRangeOfView(View view, MotionEvent ev) { int []location = new int[2]; view.getLocationOnScreen(location); @@ -357,12 +384,14 @@ public class NoteEditActivity extends Activity implements OnClickListener, if (ev.getX() < x || ev.getX() > (x + view.getWidth()) || ev.getY() < y - || ev.getY() > (y + view.getHeight())) { + || ev.getY() > (y + view.getHeight())) + //如果触控的位置超出了给定的范围，返回false + { return false; } return true; } - + private void initResources() { mHeadViewPanel = findViewById(R.id.note_title); mNoteHeaderHolder = new HeadViewHolder(); @@ -377,13 +406,13 @@ public class NoteEditActivity extends Activity implements OnClickListener, for (int id : sBgSelectorBtnsMap.keySet()) { ImageView iv = (ImageView) findViewById(id); iv.setOnClickListener(this); - } - + }//对标签各项属性内容的初始化 + mFontSizeSelector = findViewById(R.id.font_size_selector); for (int id : sFontSizeBtnsMap.keySet()) { View view = findViewById(id); view.setOnClickListener(this); - }; + };//对字体大小的选择 mSharedPrefs = PreferenceManager.getDefaultSharedPreferences(this); mFontSizeId = mSharedPrefs.getInt(PREFERENCE_FONT_SIZE, ResourceParser.BG_DEFAULT_FONT_SIZE); /** @@ -396,7 +425,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, } mEditTextList = (LinearLayout) findViewById(R.id.note_edit_list); } - + @Override protected void onPause() { super.onPause(); @@ -405,7 +434,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, } clearSettingState(); } - + //和桌面小工具的同步 private void updateWidget() { Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); if (mWorkingNote.getWidgetType() == Notes.TYPE_WIDGET_2X) { @@ -416,15 +445,15 @@ public class NoteEditActivity extends Activity implements OnClickListener, Log.e(TAG, "Unspported widget type"); return; } - + intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] { mWorkingNote.getWidgetId() }); - + sendBroadcast(intent); setResult(RESULT_OK, intent); } - + public void onClick(View v) { int id = v.getId(); if (id == R.id.btn_set_bg_color) { @@ -450,18 +479,18 @@ public class NoteEditActivity extends Activity implements OnClickListener, } mFontSizeSelector.setVisibility(View.GONE); } - } - + }//************************存在问题 + @Override public void onBackPressed() { if(clearSettingState()) { return; } - + saveNote(); super.onBackPressed(); } - + private boolean clearSettingState() { if (mNoteBgColorSelector.getVisibility() == View.VISIBLE) { mNoteBgColorSelector.setVisibility(View.GONE); @@ -472,15 +501,16 @@ public class NoteEditActivity extends Activity implements OnClickListener, } return false; } - + public void onBackgroundColorChanged() { findViewById(sBgSelectorSelectionMap.get(mWorkingNote.getBgColorId())).setVisibility( View.VISIBLE); mNoteEditorPanel.setBackgroundResource(mWorkingNote.getBgColorResId()); mHeadViewPanel.setBackgroundResource(mWorkingNote.getTitleBgResId()); } - + @Override + //对选择菜单的准备 public boolean onPrepareOptionsMenu(Menu menu) { if (isFinishing()) { return true; @@ -489,6 +519,7 @@ public class NoteEditActivity extends Activity implements OnClickListener, menu.clear(); if (mWorkingNote.getFolderId() == Notes.ID_CALL_RECORD_FOLDER) { getMenuInflater().inflate(R.menu.call_note_edit, menu); + // MenuInflater是用来实例化Menu目录下的Menu布局文件的 } else { getMenuInflater().inflate(R.menu.note_edit, menu); } @@ -504,47 +535,73 @@ public class NoteEditActivity extends Activity implements OnClickListener, } return true; } - + @Override + /* + * 函数功能：动态改变菜单选项内容 + * 函数实现：如下注释 + */ public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { + //根据菜单的id来编剧相关项目 case R.id.menu_new_note: + //创建一个新的便签 createNewNote(); break; case R.id.menu_delete: + //删除便签 AlertDialog.Builder builder = new AlertDialog.Builder(this); + //创建关于删除操作的对话框 builder.setTitle(getString(R.string.alert_title_delete)); + // 设置标签的标题为alert_title_delete builder.setIcon(android.R.drawable.ic_dialog_alert); + //设置对话框图标 builder.setMessage(getString(R.string.alert_message_delete_note)); + //设置对话框内容 builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { + //建立按键监听器 public void onClick(DialogInterface dialog, int which) { + //点击所触发事件 deleteCurrentNote(); + // 删除单签便签 finish(); } }); + //添加“YES”按钮 builder.setNegativeButton(android.R.string.cancel, null); + //添加“NO”的按钮 builder.show(); + //显示对话框 break; case R.id.menu_font_size: + //字体大小的编辑 mFontSizeSelector.setVisibility(View.VISIBLE); + // 将字体选择器置为可见 findViewById(sFontSelectorSelectionMap.get(mFontSizeId)).setVisibility(View.VISIBLE); + // 通过id找到相应的大小 break; case R.id.menu_list_mode: + //选择列表模式 mWorkingNote.setCheckListMode(mWorkingNote.getCheckListMode() == 0 ? TextNote.MODE_CHECK_LIST : 0); break; case R.id.menu_share: + //菜单共享 getWorkingText(); sendTo(this, mWorkingNote.getContent()); + // 用sendto函数将运行文本发送到遍历的本文内 break; case R.id.menu_send_to_desktop: + //发送到桌面 sendToDesktop(); break; case R.id.menu_alert: + //创建提醒器 setReminder(); break; case R.id.menu_delete_remind: + //删除日期提醒 mWorkingNote.setAlertDate(0, false); break; default: @@ -552,112 +609,171 @@ public class NoteEditActivity extends Activity implements OnClickListener, } return true; } - + + /* + * 函数功能：建立事件提醒器 + * 函数实现：如下注释 + */ private void setReminder() { DateTimePickerDialog d = new DateTimePickerDialog(this, System.currentTimeMillis()); + // 建立修改时间日期的对话框 d.setOnDateTimeSetListener(new OnDateTimeSetListener() { public void OnDateTimeSet(AlertDialog dialog, long date) { mWorkingNote.setAlertDate(date , true); + //选择提醒的日期 } - }); + }); + //建立时间日期的监听器 d.show(); + //显示对话框 } - + /** * Share note to apps that support {@link Intent#ACTION_SEND} action * and {@text/plain} type */ + /* + * 函数功能：共享便签 + * 函数实现：如下注释 + */ private void sendTo(Context context, String info) { Intent intent = new Intent(Intent.ACTION_SEND); + //建立intent链接选项 intent.putExtra(Intent.EXTRA_TEXT, info); + //将需要传递的便签信息放入text文件中 intent.setType("text/plain"); + //编辑连接器的类型 context.startActivity(intent); + //在acti中进行链接 } - + + /* + * 函数功能：创建一个新的便签 + * 函数实现：如下注释 + */ private void createNewNote() { // Firstly, save current editing notes + //保存当前便签 saveNote(); - + // For safety, start a new NoteEditActivity finish(); Intent intent = new Intent(this, NoteEditActivity.class); + //设置链接器 intent.setAction(Intent.ACTION_INSERT_OR_EDIT); + //该活动定义为创建或编辑 intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mWorkingNote.getFolderId()); + //将运行便签的id添加到INTENT_EXTRA_FOLDER_ID标记中 startActivity(intent); + //开始activity并链接 } - + + /* + * 函数功能：删除当前便签 + * 函数实现：如下注释 + */ private void deleteCurrentNote() { if (mWorkingNote.existInDatabase()) { + //假如当前运行的便签内存有数据 HashSet ids = new HashSet(); long id = mWorkingNote.getNoteId(); if (id != Notes.ID_ROOT_FOLDER) { ids.add(id); + //如果不是头文件夹建立一个hash表把便签id存起来 } else { Log.d(TAG, "Wrong note id, should not happen"); + //否则报错 } if (!isSyncMode()) { + //在非同步模式情况下 + //删除操作 if (!DataUtils.batchDeleteNotes(getContentResolver(), ids)) { Log.e(TAG, "Delete Note error"); } } else { + //同步模式 + //移动至垃圾文件夹的操作 if (!DataUtils.batchMoveToFolder(getContentResolver(), ids, Notes.ID_TRASH_FOLER)) { Log.e(TAG, "Move notes to trash folder error, should not happens"); } } } mWorkingNote.markDeleted(true); + //将这些标签的删除标记置为true } - + + /* + * 函数功能：判断是否为同步模式 + * 函数实现：直接看NotesPreferenceActivity中同步名称是否为空 + */ private boolean isSyncMode() { return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0; } - + + /* + * 函数功能：设置提醒时间 + * 函数实现：如下注释 + */ public void onClockAlertChanged(long date, boolean set) { /** * User could set clock to an unsaved note, so before setting the * alert clock, we should save the note first */ if (!mWorkingNote.existInDatabase()) { + //首先保存已有的便签 saveNote(); } if (mWorkingNote.getNoteId() > 0) { Intent intent = new Intent(this, AlarmReceiver.class); intent.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mWorkingNote.getNoteId())); + //若有有运行的便签就是建立一个链接器将标签id都存在uri中 PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0); AlarmManager alarmManager = ((AlarmManager) getSystemService(ALARM_SERVICE)); + //设置提醒管理器 showAlertHeader(); if(!set) { alarmManager.cancel(pendingIntent); } else { alarmManager.set(AlarmManager.RTC_WAKEUP, date, pendingIntent); } + //如果用户设置了时间，就通过提醒管理器设置一个监听事项 } else { /** * There is the condition that user has input nothing (the note is * not worthy saving), we have no note id, remind the user that he * should input something - */ + */ + //没有运行的便签就报错 Log.e(TAG, "Clock alert setting error"); showToast(R.string.error_note_empty_for_clock); } } - + + /* + * 函数功能：Widget发生改变的所触发的事件 + */ public void onWidgetChanged() { - updateWidget(); + updateWidget();//更新Widget } - + + /* + * 函数功能： 删除编辑文本框所触发的事件 + * 函数实现：如下注释 + */ public void onEditTextDelete(int index, String text) { int childCount = mEditTextList.getChildCount(); if (childCount == 1) { return; } - + //没有编辑框的话直接返回 for (int i = index + 1; i < childCount; i++) { ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text)) .setIndex(i - 1); + //通过id把编辑框存在便签编辑框中 } - + mEditTextList.removeViewAt(index); + //删除特定位置的视图 NoteEditText edit = null; if(index == 0) { edit = (NoteEditText) mEditTextList.getChildAt(0).findViewById( @@ -666,69 +782,101 @@ public class NoteEditActivity extends Activity implements OnClickListener, edit = (NoteEditText) mEditTextList.getChildAt(index - 1).findViewById( R.id.et_edit_text); } + //通过id把编辑框存在空的NoteEditText中 int length = edit.length(); edit.append(text); - edit.requestFocus(); - edit.setSelection(length); + edit.requestFocus();//请求优先完成该此 编辑 + edit.setSelection(length);//定位到length位置处的条目 } - + + /* + * 函数功能：进入编辑文本框所触发的事件 + * 函数实现：如下注释 + */ public void onEditTextEnter(int index, String text) { /** * Should not happen, check for debug */ if(index > mEditTextList.getChildCount()) { Log.e(TAG, "Index out of mEditTextList boundrary, should not happen"); + //越界把偶偶 } - + View view = getListItem(text, index); mEditTextList.addView(view, index); + //建立一个新的视图并添加到编辑文本框内 NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); - edit.requestFocus(); - edit.setSelection(0); + edit.requestFocus();//请求优先操作 + edit.setSelection(0);//定位到起始位置 for (int i = index + 1; i < mEditTextList.getChildCount(); i++) { ((NoteEditText) mEditTextList.getChildAt(i).findViewById(R.id.et_edit_text)) .setIndex(i); + //遍历子文本框并设置对应对下标 } } - + + /* + * 函数功能：切换至列表模式 + * 函数实现：如下注释 + */ private void switchToListMode(String text) { mEditTextList.removeAllViews(); String[] items = text.split("\n"); int index = 0; + //清空所有视图，初始化下标 for (String item : items) { if(!TextUtils.isEmpty(item)) { mEditTextList.addView(getListItem(item, index)); index++; + //遍历所有文本单元并添加到文本框中 } } mEditTextList.addView(getListItem("", index)); mEditTextList.getChildAt(index).findViewById(R.id.et_edit_text).requestFocus(); - + //优先请求此操作 + mNoteEditor.setVisibility(View.GONE); + //便签编辑器不可见 mEditTextList.setVisibility(View.VISIBLE); + //将文本编辑框置为可见 } - + + /* + * 函数功能：获取高亮效果的反馈情况 + * 函数实现：如下注释 + */ private Spannable getHighlightQueryResult(String fullText, String userQuery) { SpannableString spannable = new SpannableString(fullText == null ? "" : fullText); + //新建一个效果选项 if (!TextUtils.isEmpty(userQuery)) { mPattern = Pattern.compile(userQuery); + //将用户的询问进行解析 Matcher m = mPattern.matcher(fullText); + //建立一个状态机检查Pattern并进行匹配 int start = 0; while (m.find(start)) { spannable.setSpan( new BackgroundColorSpan(this.getResources().getColor( R.color.user_query_highlight)), m.start(), m.end(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE); + //设置背景颜色 start = m.end(); + //跟新起始位置 } } return spannable; } - + + /* + * 函数功能：获取列表项 + * 函数实现：如下注释 + */ private View getListItem(String item, int index) { View view = LayoutInflater.from(this).inflate(R.layout.note_edit_list_item, null); + //创建一个视图 final NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); edit.setTextAppearance(this, TextAppearanceResources.getTexAppearanceResource(mFontSizeId)); + //创建一个文本编辑框并设置可见性 CheckBox cb = ((CheckBox) view.findViewById(R.id.cb_edit_item)); cb.setOnCheckedChangeListener(new OnCheckedChangeListener() { public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { @@ -739,75 +887,111 @@ public class NoteEditActivity extends Activity implements OnClickListener, } } }); - + //建立一个打钩框并设置监听器 + if (item.startsWith(TAG_CHECKED)) { + //选择勾选 cb.setChecked(true); edit.setPaintFlags(edit.getPaintFlags() | Paint.STRIKE_THRU_TEXT_FLAG); item = item.substring(TAG_CHECKED.length(), item.length()).trim(); } else if (item.startsWith(TAG_UNCHECKED)) { + //选择不勾选 cb.setChecked(false); edit.setPaintFlags(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG); item = item.substring(TAG_UNCHECKED.length(), item.length()).trim(); } - + edit.setOnTextViewChangeListener(this); edit.setIndex(index); edit.setText(getHighlightQueryResult(item, mUserQuery)); + //运行编辑框的监听器对该行为作出反应，并设置下标及文本内容 return view; } - + + /* + * 函数功能：便签内容发生改变所 触发的事件 + * 函数实现：如下注释 + */ public void onTextChange(int index, boolean hasText) { if (index >= mEditTextList.getChildCount()) { Log.e(TAG, "Wrong index, should not happen"); return; + //越界报错 } if(hasText) { mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.VISIBLE); } else { mEditTextList.getChildAt(index).findViewById(R.id.cb_edit_item).setVisibility(View.GONE); } + //如果内容不为空则将其子编辑框可见性置为可见，否则不可见 } - + + /* + * 函数功能：检查模式和列表模式的切换 + * 函数实现：如下注释 + */ public void onCheckListModeChanged(int oldMode, int newMode) { if (newMode == TextNote.MODE_CHECK_LIST) { switchToListMode(mNoteEditor.getText().toString()); + //检查模式切换到列表模式 } else { if (!getWorkingText()) { mWorkingNote.setWorkingText(mWorkingNote.getContent().replace(TAG_UNCHECKED + " ", "")); } + //若是获取到文本就改变其检查标记 mNoteEditor.setText(getHighlightQueryResult(mWorkingNote.getContent(), mUserQuery)); mEditTextList.setVisibility(View.GONE); mNoteEditor.setVisibility(View.VISIBLE); + //修改文本编辑器的内容和可见性 } } - + + /* + * 函数功能：设置勾选选项表并返回是否勾选的标记 + * 函数实现：如下注释 + */ private boolean getWorkingText() { boolean hasChecked = false; + //初始化check标记 if (mWorkingNote.getCheckListMode() == TextNote.MODE_CHECK_LIST) { + // 若模式为CHECK_LIST StringBuilder sb = new StringBuilder(); + //创建可变字符串 for (int i = 0; i < mEditTextList.getChildCount(); i++) { View view = mEditTextList.getChildAt(i); + //遍历所有子编辑框的视图 NoteEditText edit = (NoteEditText) view.findViewById(R.id.et_edit_text); if (!TextUtils.isEmpty(edit.getText())) { + //若文本不为空 if (((CheckBox) view.findViewById(R.id.cb_edit_item)).isChecked()) { + //该选项框已打钩 sb.append(TAG_CHECKED).append(" ").append(edit.getText()).append("\n"); hasChecked = true; + //扩展字符串为已打钩并把标记置true } else { sb.append(TAG_UNCHECKED).append(" ").append(edit.getText()).append("\n"); + //扩展字符串添加未打钩 } } } mWorkingNote.setWorkingText(sb.toString()); + //利用编辑好的字符串设置运行便签的内容 } else { mWorkingNote.setWorkingText(mNoteEditor.getText().toString()); + // 若不是该模式直接用编辑器中的内容设置运行中标签的内容 } return hasChecked; } - + + /* + * 函数功能：保存便签 + * 函数实现：如下注释 + */ private boolean saveNote() { getWorkingText(); boolean saved = mWorkingNote.saveNote(); + //运行 getWorkingText()之后保存 if (saved) { /** * There are two modes from List view to edit view, open one note, @@ -816,11 +1000,16 @@ public class NoteEditActivity extends Activity implements OnClickListener, * new node requires to the top of the list. This code * {@link #RESULT_OK} is used to identify the create/edit state */ + //如英文注释所说链接RESULT_OK是为了识别保存的2种情况，一是创建后保存，二是修改后保存 setResult(RESULT_OK); } return saved; } - + + /* + * 函数功能：将便签发送至桌面 + * 函数实现：如下注释 + */ private void sendToDesktop() { /** * Before send message to home, we should make sure that current @@ -829,12 +1018,16 @@ public class NoteEditActivity extends Activity implements OnClickListener, */ if (!mWorkingNote.existInDatabase()) { saveNote(); + //若不存在数据也就是新的标签就保存起来先 } - + if (mWorkingNote.getNoteId() > 0) { + //若是有内容 Intent sender = new Intent(); Intent shortcutIntent = new Intent(this, NoteEditActivity.class); + //建立发送到桌面的连接器 shortcutIntent.setAction(Intent.ACTION_VIEW); + //链接为一个视图 shortcutIntent.putExtra(Intent.EXTRA_UID, mWorkingNote.getNoteId()); sender.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent); sender.putExtra(Intent.EXTRA_SHORTCUT_NAME, @@ -842,9 +1035,12 @@ public class NoteEditActivity extends Activity implements OnClickListener, sender.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE, Intent.ShortcutIconResource.fromContext(this, R.drawable.icon_app)); sender.putExtra("duplicate", true); + //将便签的相关信息都添加到要发送的文件里 sender.setAction("com.android.launcher.action.INSTALL_SHORTCUT"); + //设置sneder的行为是发送 showToast(R.string.info_note_enter_desktop); sendBroadcast(sender); + //显示到桌面 } else { /** * There is the condition that user has input nothing (the note is @@ -853,21 +1049,35 @@ public class NoteEditActivity extends Activity implements OnClickListener, */ Log.e(TAG, "Send to desktop error"); showToast(R.string.error_note_empty_for_send_to_desktop); + //空便签直接报错 } } - + + /* + * 函数功能：编辑小图标的标题 + * 函数实现：如下注释 + */ private String makeShortcutIconTitle(String content) { content = content.replace(TAG_CHECKED, ""); content = content.replace(TAG_UNCHECKED, ""); return content.length() > SHORTCUT_ICON_TITLE_MAX_LEN ? content.substring(0, SHORTCUT_ICON_TITLE_MAX_LEN) : content; - } - + //直接设置为content中的内容并返回，有勾选和未勾选2种 + } + + /* + * 函数功能：显示提示的视图 + * 函数实现：根据下标显示对应的提示 + */ private void showToast(int resId) { showToast(resId, Toast.LENGTH_SHORT); } - + + /* + * 函数功能：持续显示提示的视图 + * 函数实现：根据下标和持续的时间（duration）编辑提示视图并显示 + */ private void showToast(int resId, int duration) { Toast.makeText(this, resId, duration).show(); } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/NoteEditText.java b/src/Notes-master/src/net/micode/notes/ui/NoteEditText.java index 2afe2a8..ca9c209 100644 --- a/src/Notes-master/src/net/micode/notes/ui/NoteEditText.java +++ b/src/Notes-master/src/net/micode/notes/ui/NoteEditText.java @@ -15,7 +15,7 @@ */ package net.micode.notes.ui; - + import android.content.Context; import android.graphics.Rect; import android.text.Layout; @@ -31,187 +31,256 @@ import android.view.MenuItem; import android.view.MenuItem.OnMenuItemClickListener; import android.view.MotionEvent; import android.widget.EditText; - + import net.micode.notes.R; - + import java.util.HashMap; import java.util.Map; - -public class NoteEditText extends EditText { + +//继承edittext，设置便签设置文本框 +public class NoteEditText extends EditText { private static final String TAG = "NoteEditText"; private int mIndex; private int mSelectionStartBeforeDelete; - + private static final String SCHEME_TEL = "tel:" ; private static final String SCHEME_HTTP = "http:" ; private static final String SCHEME_EMAIL = "mailto:" ; - + + ///建立一个字符和整数的hash表，用于链接电话，网站，还有邮箱 private static final Map sSchemaActionResMap = new HashMap(); static { sSchemaActionResMap.put(SCHEME_TEL, R.string.note_link_tel); sSchemaActionResMap.put(SCHEME_HTTP, R.string.note_link_web); sSchemaActionResMap.put(SCHEME_EMAIL, R.string.note_link_email); } - + /** * Call by the {@link NoteEditActivity} to delete or add edit text */ + //在NoteEditActivity中删除或添加文本的操作，可以看做是一个文本是否被变的标记，英文注释已说明的很清楚 public interface OnTextViewChangeListener { /** * Delete current edit text when {@link KeyEvent#KEYCODE_DEL} happens * and the text is null */ + //处理删除按键时的操作 void onEditTextDelete(int index, String text); - + /** * Add edit text after current edit text when {@link KeyEvent#KEYCODE_ENTER} * happen */ + //处理进入按键时的操作 void onEditTextEnter(int index, String text); - + /** * Hide or show item option when text change */ void onTextChange(int index, boolean hasText); } - + private OnTextViewChangeListener mOnTextViewChangeListener; - + + //根据context设置文本 public NoteEditText(Context context) { - super(context, null); + super(context, null);//用super引用父类变量 mIndex = 0; } - + + //设置当前光标 public void setIndex(int index) { mIndex = index; } - + + //初始化文本修改标记 public void setOnTextViewChangeListener(OnTextViewChangeListener listener) { mOnTextViewChangeListener = listener; } - - public NoteEditText(Context context, AttributeSet attrs) { + + //AttributeSet 百度了一下是自定义空控件属性，用于维护便签动态变化的属性 + //初始化便签 + public NoteEditText(Context context, AttributeSet attrs) { super(context, attrs, android.R.attr.editTextStyle); } - + + // 根据defstyle自动初始化 public NoteEditText(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); - // TODO Auto-generated constructor stub - } - + // TODO Auto-generated construct or stub + } + @Override + //view里的函数，处理手机屏幕的所有事件 + /*参数event为手机屏幕触摸事件封装类的对象，其中封装了该事件的所有信息， + 例如触摸的位置、触摸的类型以及触摸的时间等。该对象会在用户触摸手机屏幕时被创建。*/ public boolean onTouchEvent(MotionEvent event) { switch (event.getAction()) { + //重写了需要处理屏幕被按下的事件 case MotionEvent.ACTION_DOWN: - + //跟新当前坐标值 int x = (int) event.getX(); int y = (int) event.getY(); x -= getTotalPaddingLeft(); y -= getTotalPaddingTop(); x += getScrollX(); y += getScrollY(); - + + //用布局控件layout根据x,y的新值设置新的位置 Layout layout = getLayout(); int line = layout.getLineForVertical(y); int off = layout.getOffsetForHorizontal(line, x); + + //更新光标新的位置 Selection.setSelection(getText(), off); break; } - + return super.onTouchEvent(event); } - + @Override + /* + * 函数功能：处理用户按下一个键盘按键时会触发 的事件 + * 实现过程：如下注释 + */ public boolean onKeyDown(int keyCode, KeyEvent event) { switch (keyCode) { + //根据按键的 Unicode 编码值来处理 case KeyEvent.KEYCODE_ENTER: + //“进入”按键 if (mOnTextViewChangeListener != null) { return false; } break; case KeyEvent.KEYCODE_DEL: + //“删除”按键 mSelectionStartBeforeDelete = getSelectionStart(); break; default: break; } + //继续执行父类的其他点击事件 return super.onKeyDown(keyCode, event); } - + @Override + /* + * 函数功能：处理用户松开一个键盘按键时会触发 的事件 + * 实现方式：如下注释 + */ public boolean onKeyUp(int keyCode, KeyEvent event) { switch(keyCode) { + //根据按键的 Unicode 编码值来处理，有删除和进入2种操作 case KeyEvent.KEYCODE_DEL: if (mOnTextViewChangeListener != null) { + //若是被修改过 if (0 == mSelectionStartBeforeDelete && mIndex != 0) { + //若之前有被修改并且文档不为空 mOnTextViewChangeListener.onEditTextDelete(mIndex, getText().toString()); + //利用上文OnTextViewChangeListener对KEYCODE_DEL按键情况的删除函数进行删除 return true; } } else { Log.d(TAG, "OnTextViewChangeListener was not seted"); + //其他情况报错，文档的改动监听器并没有建立 } break; case KeyEvent.KEYCODE_ENTER: + //同上也是分为监听器是否建立2种情况 if (mOnTextViewChangeListener != null) { int selectionStart = getSelectionStart(); + //获取当前位置 String text = getText().subSequence(selectionStart, length()).toString(); + //获取当前文本 setText(getText().subSequence(0, selectionStart)); + //根据获取的文本设置当前文本 mOnTextViewChangeListener.onEditTextEnter(mIndex + 1, text); + //当{@link KeyEvent#KEYCODE_ENTER}添加新文本 } else { Log.d(TAG, "OnTextViewChangeListener was not seted"); + //其他情况报错，文档的改动监听器并没有建立 } break; default: break; } + //继续执行父类的其他按键弹起的事件 return super.onKeyUp(keyCode, event); } - + @Override + /* + * 函数功能：当焦点发生变化时，会自动调用该方法来处理焦点改变的事件 + * 实现方式：如下注释 + * 参数：focused表示触发该事件的View是否获得了焦点，当该控件获得焦点时，Focused等于true，否则等于false。 + direction表示焦点移动的方向，用数值表示 + Rect：表示在触发事件的View的坐标系中，前一个获得焦点的矩形区域，即表示焦点是从哪里来的。如果不可用则为null + */ protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) { - if (mOnTextViewChangeListener != null) { + if (mOnTextViewChangeListener != null) { + //若监听器已经建立 if (!focused && TextUtils.isEmpty(getText())) { + //获取到焦点并且文本不为空 mOnTextViewChangeListener.onTextChange(mIndex, false); + //mOnTextViewChangeListener子函数，置false隐藏事件选项 } else { mOnTextViewChangeListener.onTextChange(mIndex, true); + //mOnTextViewChangeListener子函数，置true显示事件选项 } } + //继续执行父类的其他焦点变化的事件 super.onFocusChanged(focused, direction, previouslyFocusedRect); } - + @Override + /* + * 函数功能：生成上下文菜单 + * 函数实现：如下注释 + */ protected void onCreateContextMenu(ContextMenu menu) { if (getText() instanceof Spanned) { + //有文本存在 int selStart = getSelectionStart(); int selEnd = getSelectionEnd(); - + //获取文本开始和结尾位置 + int min = Math.min(selStart, selEnd); int max = Math.max(selStart, selEnd); - + //获取开始到结尾的最大值和最小值 + final URLSpan[] urls = ((Spanned) getText()).getSpans(min, max, URLSpan.class); + //设置url的信息的范围值 if (urls.length == 1) { int defaultResId = 0; for(String schema: sSchemaActionResMap.keySet()) { + //获取计划表中所有的key值 if(urls[0].getURL().indexOf(schema) >= 0) { + //若url可以添加则在添加后将defaultResId置为key所映射的值 defaultResId = sSchemaActionResMap.get(schema); break; } } - + if (defaultResId == 0) { + //defaultResId == 0则说明url并没有添加任何东西，所以置为连接其他SchemaActionResMap的值 defaultResId = R.string.note_link_other; } - + + //建立菜单 menu.add(0, 0, 0, defaultResId).setOnMenuItemClickListener( new OnMenuItemClickListener() { + //新建按键监听器 public boolean onMenuItemClick(MenuItem item) { // goto a new intent urls[0].onClick(NoteEditText.this); + //根据相应的文本设置菜单的按键 return true; } }); } } + //继续执行父类的其他菜单创建的事件 super.onCreateContextMenu(menu); } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/NoteItemData.java b/src/Notes-master/src/net/micode/notes/ui/NoteItemData.java index 0f5a878..36653a3 100644 --- a/src/Notes-master/src/net/micode/notes/ui/NoteItemData.java +++ b/src/Notes-master/src/net/micode/notes/ui/NoteItemData.java @@ -15,17 +15,17 @@ */ package net.micode.notes.ui; - + import android.content.Context; import android.database.Cursor; import android.text.TextUtils; - + import net.micode.notes.data.Contact; import net.micode.notes.data.Notes; import net.micode.notes.data.Notes.NoteColumns; import net.micode.notes.tool.DataUtils; - - + + public class NoteItemData { static final String [] PROJECTION = new String [] { NoteColumns.ID, @@ -41,7 +41,7 @@ public class NoteItemData { NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE, }; - + //常量标记和数据就不一一标记了，意义翻译基本就知道 private static final int ID_COLUMN = 0; private static final int ALERTED_DATE_COLUMN = 1; private static final int BG_COLOR_ID_COLUMN = 2; @@ -54,7 +54,7 @@ public class NoteItemData { private static final int TYPE_COLUMN = 9; private static final int WIDGET_ID_COLUMN = 10; private static final int WIDGET_TYPE_COLUMN = 11; - + private long mId; private long mAlertDate; private int mBgColorId; @@ -69,14 +69,15 @@ public class NoteItemData { private int mWidgetType; private String mName; private String mPhoneNumber; - + private boolean mIsLastItem; private boolean mIsFirstItem; private boolean mIsOnlyOneItem; private boolean mIsOneNoteFollowingFolder; private boolean mIsMultiNotesFollowingFolder; - - public NoteItemData(Context context, Cursor cursor) { + //初始化NoteItemData，主要利用光标cursor获取的东西 + public NoteItemData(Context context, Cursor cursor) { + //getxxx为转换格式 mId = cursor.getLong(ID_COLUMN); mAlertDate = cursor.getLong(ALERTED_DATE_COLUMN); mBgColorId = cursor.getInt(BG_COLOR_ID_COLUMN); @@ -91,134 +92,139 @@ public class NoteItemData { mType = cursor.getInt(TYPE_COLUMN); mWidgetId = cursor.getInt(WIDGET_ID_COLUMN); mWidgetType = cursor.getInt(WIDGET_TYPE_COLUMN); - + + //初始化电话号码的信息 mPhoneNumber = ""; if (mParentId == Notes.ID_CALL_RECORD_FOLDER) { mPhoneNumber = DataUtils.getCallNumberByNoteId(context.getContentResolver(), mId); - if (!TextUtils.isEmpty(mPhoneNumber)) { + if (!TextUtils.isEmpty(mPhoneNumber)) {//mphonenumber里有符合字符串，则用contart功能连接 mName = Contact.getContact(context, mPhoneNumber); if (mName == null) { mName = mPhoneNumber; } } } - + if (mName == null) { mName = ""; } checkPostion(cursor); } - + ///根据鼠标的位置设置标记，和位置 private void checkPostion(Cursor cursor) { + //初始化几个标记，cursor具体功能笔记中已提到，不一一叙述 mIsLastItem = cursor.isLast() ? true : false; mIsFirstItem = cursor.isFirst() ? true : false; mIsOnlyOneItem = (cursor.getCount() == 1); + //初始化“多重子文件”“单一子文件”2个标记 mIsMultiNotesFollowingFolder = false; mIsOneNoteFollowingFolder = false; - - if (mType == Notes.TYPE_NOTE && !mIsFirstItem) { + + //主要是设置上诉2标记 + if (mType == Notes.TYPE_NOTE && !mIsFirstItem) {//若是note格式并且不是第一个元素 int position = cursor.getPosition(); - if (cursor.moveToPrevious()) { + if (cursor.moveToPrevious()) {//获取光标位置后看上一行 if (cursor.getInt(TYPE_COLUMN) == Notes.TYPE_FOLDER - || cursor.getInt(TYPE_COLUMN) == Notes.TYPE_SYSTEM) { + || cursor.getInt(TYPE_COLUMN) == Notes.TYPE_SYSTEM) {//若光标满足系统或note格式 if (cursor.getCount() > (position + 1)) { - mIsMultiNotesFollowingFolder = true; + mIsMultiNotesFollowingFolder = true;//若是数据行数大于但前位置+1则设置成正确 } else { - mIsOneNoteFollowingFolder = true; + mIsOneNoteFollowingFolder = true;//否则单一文件夹标记为true } } - if (!cursor.moveToNext()) { + if (!cursor.moveToNext()) {//若不能再往下走则报错 throw new IllegalStateException("cursor move to previous but can't move back"); } } } } - +///以下都是获取标记没什么好说的，不过倒数第二个需要说明下，很具体看下面 public boolean isOneFollowingFolder() { return mIsOneNoteFollowingFolder; } - + public boolean isMultiFollowingFolder() { return mIsMultiNotesFollowingFolder; } - + public boolean isLast() { return mIsLastItem; } - + public String getCallName() { return mName; } - + public boolean isFirst() { return mIsFirstItem; } - + public boolean isSingle() { return mIsOnlyOneItem; } - + public long getId() { return mId; } - + public long getAlertDate() { return mAlertDate; } - + public long getCreatedDate() { return mCreatedDate; } - + public boolean hasAttachment() { return mHasAttachment; } - + public long getModifiedDate() { return mModifiedDate; } - + public int getBgColorId() { return mBgColorId; } - + public long getParentId() { return mParentId; } - + public int getNotesCount() { return mNotesCount; } - + public long getFolderId () { return mParentId; } - + public int getType() { return mType; } - + public int getWidgetType() { return mWidgetType; } - + public int getWidgetId() { return mWidgetId; } - + public String getSnippet() { return mSnippet; } - + public boolean hasAlert() { return (mAlertDate > 0); } - + + //若数据父id为保存至文件夹模式的id且满足电话号码单元不为空，则isCallRecord为true public boolean isCallRecord() { return (mParentId == Notes.ID_CALL_RECORD_FOLDER && !TextUtils.isEmpty(mPhoneNumber)); } - + public static int getNoteType(Cursor cursor) { return cursor.getInt(TYPE_COLUMN); } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/NotesListActivity.java b/src/Notes-master/src/net/micode/notes/ui/NotesListActivity.java index e843aec..8228541 100644 --- a/src/Notes-master/src/net/micode/notes/ui/NotesListActivity.java +++ b/src/Notes-master/src/net/micode/notes/ui/NotesListActivity.java @@ -15,7 +15,7 @@ */ package net.micode.notes.ui; - + import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; @@ -59,7 +59,7 @@ import android.widget.ListView; import android.widget.PopupMenu; import android.widget.TextView; import android.widget.Toast; - + import net.micode.notes.R; import net.micode.notes.data.Notes; import net.micode.notes.data.Notes.NoteColumns; @@ -71,103 +71,118 @@ import net.micode.notes.tool.ResourceParser; import net.micode.notes.ui.NotesListAdapter.AppWidgetAttribute; import net.micode.notes.widget.NoteWidgetProvider_2x; import net.micode.notes.widget.NoteWidgetProvider_4x; - + import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.util.HashSet; - -public class NotesListActivity extends Activity implements OnClickListener, OnItemLongClickListener { +//主界面，一进入就是这个界面 +/** + * @author k + * + */ +public class NotesListActivity extends Activity implements OnClickListener, OnItemLongClickListener { //没有用特定的标签加注释。。。感觉没有什么用 private static final int FOLDER_NOTE_LIST_QUERY_TOKEN = 0; - + private static final int FOLDER_LIST_QUERY_TOKEN = 1; - + private static final int MENU_FOLDER_DELETE = 0; - + private static final int MENU_FOLDER_VIEW = 1; - + private static final int MENU_FOLDER_CHANGE_NAME = 2; - - private static final String PREFERENCE_ADD_INTRODUCTION = "net.micode.notes.introduction"; - + + private static final String PREFERENCE_ADD_INTRODUCTION = "net.micode.notes.introduction"; //单行超过80个字符 + private enum ListEditState { NOTE_LIST, SUB_FOLDER, CALL_RECORD_FOLDER }; - + private ListEditState mState; - + private BackgroundQueryHandler mBackgroundQueryHandler; - + private NotesListAdapter mNotesListAdapter; - + private ListView mNotesListView; - + private Button mAddNewNote; - + private boolean mDispatch; - + private int mOriginY; - + private int mDispatchY; - + private TextView mTitleBar; - + private long mCurrentFolderId; - + private ContentResolver mContentResolver; - + private ModeCallback mModeCallBack; - + private static final String TAG = "NotesListActivity"; - + public static final int NOTES_LISTVIEW_SCROLL_RATE = 30; - + private NoteItemData mFocusNoteDataItem; - + private static final String NORMAL_SELECTION = NoteColumns.PARENT_ID + "=?"; - + private static final String ROOT_FOLDER_SELECTION = "(" + NoteColumns.TYPE + "<>" + Notes.TYPE_SYSTEM + " AND " + NoteColumns.PARENT_ID + "=?)" + " OR (" + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER + " AND " + NoteColumns.NOTES_COUNT + ">0)"; - + private final static int REQUEST_CODE_OPEN_NODE = 102; private final static int REQUEST_CODE_NEW_NODE = 103; - + @Override - protected void onCreate(Bundle savedInstanceState) { - super.onCreate(savedInstanceState); + // 创建类 + protected void onCreate(final Bundle savedInstanceState) { //需要是final类型 根据程序上下文环境，Java关键字final有“这是无法改变的”或者“终态的”含义，它可以修饰非抽象类、非抽象类成员方法和变量。你可能出于两种理解而需要阻止改变：设计或效率。 + // final类不能被继承，没有子类，final类中的方法默认是final的。 + //final方法不能被子类的方法覆盖，但可以被继承。 + //final成员变量表示常量，只能被赋值一次，赋值后值不再改变。 + //final不能用于修饰构造方法。 + super.onCreate(savedInstanceState); // 调用父类的onCreate函数 setContentView(R.layout.note_list); initResources(); - + /** * Insert an introduction when user firstly use this application */ setAppInfoFromRawRes(); } - + @Override + // 返回一些子模块完成的数据交给主Activity处理 protected void onActivityResult(int requestCode, int resultCode, Intent data) { - if (resultCode == RESULT_OK + // 结果值 和 要求值 符合要求 + if (resultCode == RESULT_OK && (requestCode == REQUEST_CODE_OPEN_NODE || requestCode == REQUEST_CODE_NEW_NODE)) { mNotesListAdapter.changeCursor(null); } else { super.onActivityResult(requestCode, resultCode, data); + // 调用 Activity 的onActivityResult（） } } - + private void setAppInfoFromRawRes() { + // Android平台给我们提供了一个SharedPreferences类，它是一个轻量级的存储类，特别适合用于保存软件配置参数。 SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this); if (!sp.getBoolean(PREFERENCE_ADD_INTRODUCTION, false)) { StringBuilder sb = new StringBuilder(); InputStream in = null; try { - in = getResources().openRawResource(R.raw.introduction); + // 把资源文件放到应用程序的/raw/raw下，那么就可以在应用中使用getResources获取资源后, + // 以openRawResource方法（不带后缀的资源文件名）打开这个文件。 + in = getResources().openRawResource(R.raw.introduction); if (in != null) { InputStreamReader isr = new InputStreamReader(in); BufferedReader br = new BufferedReader(isr); - char [] buf = new char[1024]; + char [] buf = new char[1024]; // 自行定义的数值，使用者不知道有什么意义 int len = 0; while ((len = br.read(buf)) > 0) { sb.append(buf, 0, len); @@ -180,7 +195,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt e.printStackTrace(); return; } finally { - if(in != null) { + if (in != null) { try { in.close(); } catch (IOException e) { @@ -189,12 +204,14 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } } } - + + // 创建空的WorkingNote WorkingNote note = WorkingNote.createEmptyNote(this, Notes.ID_ROOT_FOLDER, AppWidgetManager.INVALID_APPWIDGET_ID, Notes.TYPE_WIDGET_INVALIDE, ResourceParser.RED); note.setWorkingText(sb.toString()); if (note.saveNote()) { + // 更新保存note的信息 sp.edit().putBoolean(PREFERENCE_ADD_INTRODUCTION, true).commit(); } else { Log.e(TAG, "Save introduction note error"); @@ -202,25 +219,28 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } } } - + @Override protected void onStart() { super.onStart(); startAsyncNotesListQuery(); } - + + // 初始化资源 private void initResources() { - mContentResolver = this.getContentResolver(); + mContentResolver = this.getContentResolver(); // 获取应用程序的数据，得到类似数据表的东西 mBackgroundQueryHandler = new BackgroundQueryHandler(this.getContentResolver()); mCurrentFolderId = Notes.ID_ROOT_FOLDER; - mNotesListView = (ListView) findViewById(R.id.notes_list); + + // findViewById 是安卓编程的定位函数，主要是引用.R文件里的引用名 + mNotesListView = (ListView) findViewById(R.id.notes_list); // 绑定XML中的ListView，作为Item的容器 mNotesListView.addFooterView(LayoutInflater.from(this).inflate(R.layout.note_list_footer, null), null, false); mNotesListView.setOnItemClickListener(new OnListItemClickListener()); mNotesListView.setOnItemLongClickListener(this); mNotesListAdapter = new NotesListAdapter(this); mNotesListView.setAdapter(mNotesListAdapter); - mAddNewNote = (Button) findViewById(R.id.btn_new_note); + mAddNewNote = (Button) findViewById(R.id.btn_new_note);// 在activity中要获取该按钮 mAddNewNote.setOnClickListener(this); mAddNewNote.setOnTouchListener(new NewNoteOnTouchListener()); mDispatch = false; @@ -230,12 +250,13 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt mState = ListEditState.NOTE_LIST; mModeCallBack = new ModeCallback(); } - + + // 继承自ListView.MultiChoiceModeListener 和 OnMenuItemClickListener private class ModeCallback implements ListView.MultiChoiceModeListener, OnMenuItemClickListener { private DropdownMenu mDropDownMenu; private ActionMode mActionMode; private MenuItem mMoveMenu; - + public boolean onCreateActionMode(ActionMode mode, Menu menu) { getMenuInflater().inflate(R.menu.note_list_options, menu); menu.findItem(R.id.delete).setOnMenuItemClickListener(this); @@ -251,7 +272,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt mNotesListAdapter.setChoiceMode(true); mNotesListView.setLongClickable(false); mAddNewNote.setVisibility(View.GONE); - + View customView = LayoutInflater.from(NotesListActivity.this).inflate( R.layout.note_list_dropdown_menu, null); mode.setCustomView(customView); @@ -259,21 +280,22 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt (Button) customView.findViewById(R.id.selection_menu), R.menu.note_list_dropdown); mDropDownMenu.setOnDropdownMenuItemClickListener(new PopupMenu.OnMenuItemClickListener(){ - public boolean onMenuItemClick(MenuItem item) { + public boolean onMenuItemClick(final MenuItem item) { mNotesListAdapter.selectAll(!mNotesListAdapter.isAllSelected()); updateMenu(); return true; } - + }); return true; } - + + // 更新菜单 private void updateMenu() { int selectedCount = mNotesListAdapter.getSelectedCount(); // Update dropdown menu String format = getResources().getString(R.string.menu_select_title, selectedCount); - mDropDownMenu.setTitle(format); + mDropDownMenu.setTitle(format); // 更改标题 MenuItem item = mDropDownMenu.findItem(R.id.action_select_all); if (item != null) { if (mNotesListAdapter.isAllSelected()) { @@ -285,40 +307,40 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } } } - + public boolean onPrepareActionMode(ActionMode mode, Menu menu) { // TODO Auto-generated method stub return false; } - + public boolean onActionItemClicked(ActionMode mode, MenuItem item) { // TODO Auto-generated method stub return false; } - + public void onDestroyActionMode(ActionMode mode) { mNotesListAdapter.setChoiceMode(false); mNotesListView.setLongClickable(true); mAddNewNote.setVisibility(View.VISIBLE); } - + public void finishActionMode() { mActionMode.finish(); } - + public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) { mNotesListAdapter.setCheckedItem(position, checked); updateMenu(); } - + public boolean onMenuItemClick(MenuItem item) { if (mNotesListAdapter.getSelectedCount() == 0) { Toast.makeText(NotesListActivity.this, getString(R.string.menu_select_none), Toast.LENGTH_SHORT).show(); return true; } - + switch (item.getItemId()) { case R.id.delete: AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); @@ -345,9 +367,9 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt return true; } } - + private class NewNoteOnTouchListener implements OnTouchListener { - + public boolean onTouch(View v, MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN: { @@ -366,7 +388,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt /** * HACKME:When click the transparent part of "New Note" button, dispatch * the event to the list view behind this button. The transparent part of - * "New Note" button could be expressed by formula y=-0.12x+94（Unit:pixel） + * "New Note" button could be expressed by formula y=-0.12x+94锛圲nit:pixel锛� * and the line top of the button. The coordinate based on left of the "New * Note" button. The 94 represents maximum height of the transparent part. * Notice that, if the background of the button changes, the formula should @@ -405,9 +427,9 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } return false; } - + }; - + private void startAsyncNotesListQuery() { String selection = (mCurrentFolderId == Notes.ID_ROOT_FOLDER) ? ROOT_FOLDER_SELECTION : NORMAL_SELECTION; @@ -416,12 +438,12 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt String.valueOf(mCurrentFolderId) }, NoteColumns.TYPE + " DESC," + NoteColumns.MODIFIED_DATE + " DESC"); } - + private final class BackgroundQueryHandler extends AsyncQueryHandler { public BackgroundQueryHandler(ContentResolver contentResolver) { super(contentResolver); } - + @Override protected void onQueryComplete(int token, Object cookie, Cursor cursor) { switch (token) { @@ -440,13 +462,13 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } } } - + private void showFolderListMenu(Cursor cursor) { AlertDialog.Builder builder = new AlertDialog.Builder(NotesListActivity.this); builder.setTitle(R.string.menu_title_select_folder); final FoldersListAdapter adapter = new FoldersListAdapter(this, cursor); builder.setAdapter(adapter, new DialogInterface.OnClickListener() { - + public void onClick(DialogInterface dialog, int which) { DataUtils.batchMoveToFolder(mContentResolver, mNotesListAdapter.getSelectedItemIds(), adapter.getItemId(which)); @@ -461,14 +483,14 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt }); builder.show(); } - + private void createNewNote() { Intent intent = new Intent(this, NoteEditActivity.class); intent.setAction(Intent.ACTION_INSERT_OR_EDIT); intent.putExtra(Notes.INTENT_EXTRA_FOLDER_ID, mCurrentFolderId); this.startActivityForResult(intent, REQUEST_CODE_NEW_NODE); } - + private void batchDelete() { new AsyncTask>() { protected HashSet doInBackground(Void... unused) { @@ -490,7 +512,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } return widgets; } - + @Override protected void onPostExecute(HashSet widgets) { if (widgets != null) { @@ -505,13 +527,13 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } }.execute(); } - + private void deleteFolder(long folderId) { if (folderId == Notes.ID_ROOT_FOLDER) { Log.e(TAG, "Wrong folder id, should not happen " + folderId); return; } - + HashSet ids = new HashSet(); ids.add(folderId); HashSet widgets = DataUtils.getFolderNoteWidget(mContentResolver, @@ -532,14 +554,14 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } } } - + private void openNode(NoteItemData data) { Intent intent = new Intent(this, NoteEditActivity.class); intent.setAction(Intent.ACTION_VIEW); intent.putExtra(Intent.EXTRA_UID, data.getId()); this.startActivityForResult(intent, REQUEST_CODE_OPEN_NODE); } - + private void openFolder(NoteItemData data) { mCurrentFolderId = data.getId(); startAsyncNotesListQuery(); @@ -556,7 +578,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } mTitleBar.setVisibility(View.VISIBLE); } - + public void onClick(View v) { switch (v.getId()) { case R.id.btn_new_note: @@ -566,19 +588,19 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt break; } } - + private void showSoftInput() { InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); if (inputMethodManager != null) { inputMethodManager.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0); } } - + private void hideSoftInput(View view) { InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); inputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0); } - + private void showCreateOrModifyFolderDialog(final boolean create) { final AlertDialog.Builder builder = new AlertDialog.Builder(this); View view = LayoutInflater.from(this).inflate(R.layout.dialog_edit_text, null); @@ -596,14 +618,14 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt etName.setText(""); builder.setTitle(this.getString(R.string.menu_create_folder)); } - + builder.setPositiveButton(android.R.string.ok, null); builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { hideSoftInput(etName); } }); - + final Dialog dialog = builder.setView(view).show(); final Button positive = (Button)dialog.findViewById(android.R.id.button1); positive.setOnClickListener(new OnClickListener() { @@ -636,7 +658,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt dialog.dismiss(); } }); - + if (TextUtils.isEmpty(etName.getText())) { positive.setEnabled(false); } @@ -646,9 +668,9 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt etName.addTextChangedListener(new TextWatcher() { public void beforeTextChanged(CharSequence s, int start, int count, int after) { // TODO Auto-generated method stub - + } - + public void onTextChanged(CharSequence s, int start, int before, int count) { if (TextUtils.isEmpty(etName.getText())) { positive.setEnabled(false); @@ -656,17 +678,20 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt positive.setEnabled(true); } } - + public void afterTextChanged(Editable s) { // TODO Auto-generated method stub - + } }); } - + + /* (non-Javadoc) + * @see android.app.Activity#onBackPressed() + * 按返回键时根据情况更改类中的数据 + */ @Override - public void onBackPressed() { - switch (mState) { + public void onBackPressed() { switch (mState) { case SUB_FOLDER: mCurrentFolderId = Notes.ID_ROOT_FOLDER; mState = ListEditState.NOTE_LIST; @@ -687,7 +712,12 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt break; } } - + + /** + * @param appWidgetId + * @param appWidgetType + * 根据不同类型的widget更新插件，通过intent传送数据 + */ private void updateWidget(int appWidgetId, int appWidgetType) { Intent intent = new Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE); if (appWidgetType == Notes.TYPE_WIDGET_2X) { @@ -698,15 +728,18 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt Log.e(TAG, "Unspported widget type"); return; } - + intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, new int[] { appWidgetId }); - + sendBroadcast(intent); setResult(RESULT_OK, intent); } - + + /** + * 声明监听器，建立菜单，包括名称，视图，删除操作，更改名称操作； + */ private final OnCreateContextMenuListener mFolderOnCreateContextMenuListener = new OnCreateContextMenuListener() { public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { if (mFocusNoteDataItem != null) { @@ -717,7 +750,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } } }; - + @Override public void onContextMenuClosed(Menu menu) { if (mNotesListView != null) { @@ -725,7 +758,11 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } super.onContextMenuClosed(menu); } - + + /* (non-Javadoc) + * @see android.app.Activity#onContextItemSelected(android.view.MenuItem) + * 针对menu中不同的选择进行不同的处理，里面详细注释 + */ @Override public boolean onContextItemSelected(MenuItem item) { if (mFocusNoteDataItem == null) { @@ -734,10 +771,10 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } switch (item.getItemId()) { case MENU_FOLDER_VIEW: - openFolder(mFocusNoteDataItem); + openFolder(mFocusNoteDataItem);//打开对应文件 break; case MENU_FOLDER_DELETE: - AlertDialog.Builder builder = new AlertDialog.Builder(this); + AlertDialog.Builder builder = new AlertDialog.Builder(this);//设置确认是否删除的对话框 builder.setTitle(getString(R.string.alert_title_delete)); builder.setIcon(android.R.drawable.ic_dialog_alert); builder.setMessage(getString(R.string.alert_message_delete_folder)); @@ -748,7 +785,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } }); builder.setNegativeButton(android.R.string.cancel, null); - builder.show(); + builder.show();//显示对话框 break; case MENU_FOLDER_CHANGE_NAME: showCreateOrModifyFolderDialog(false); @@ -756,10 +793,10 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt default: break; } - + return true; } - + @Override public boolean onPrepareOptionsMenu(Menu menu) { menu.clear(); @@ -777,7 +814,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } return true; } - + @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { @@ -817,22 +854,29 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } return true; } - + + /* (non-Javadoc) + * @see android.app.Activity#onSearchRequested() + * 直接调用startSearch函数 + */ @Override public boolean onSearchRequested() { startSearch(null, false, null /* appData */, false); return true; } - + + /** + * 函数功能：实现将便签导出到文本功能 + */ private void exportNoteToText() { final BackupUtils backup = BackupUtils.getInstance(NotesListActivity.this); new AsyncTask() { - + @Override protected Integer doInBackground(Void... unused) { return backup.exportToText(); } - + @Override protected void onPostExecute(Integer result) { if (result == BackupUtils.STATE_SD_CARD_UNMOUONTED) { @@ -862,22 +906,33 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt builder.show(); } } - + }.execute(); } - + + /** + * @return + * 功能：判断是否正在同步 + */ private boolean isSyncMode() { return NotesPreferenceActivity.getSyncAccountName(this).trim().length() > 0; } - + + /** + * 功能：跳转到PreferenceActivity界面 + */ private void startPreferenceActivity() { Activity from = getParent() != null ? getParent() : this; Intent intent = new Intent(from, NotesPreferenceActivity.class); from.startActivityIfNeeded(intent, -1); } - + + /** + * @author k + * 函数功能：实现对便签列表项的点击事件（短按） + */ private class OnListItemClickListener implements OnItemClickListener { - + public void onItemClick(AdapterView parent, View view, int position, long id) { if (view instanceof NotesListItem) { NoteItemData item = ((NotesListItem) view).getItemData(); @@ -889,7 +944,7 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } return; } - + switch (mState) { case NOTE_LIST: if (item.getType() == Notes.TYPE_FOLDER @@ -914,14 +969,17 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } } } - + } - + + /** + * 查询目标文件 + */ private void startQueryDestinationFolders() { String selection = NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>? AND " + NoteColumns.ID + "<>?"; selection = (mState == ListEditState.NOTE_LIST) ? selection: "(" + selection + ") OR (" + NoteColumns.ID + "=" + Notes.ID_ROOT_FOLDER + ")"; - + mBackgroundQueryHandler.startQuery(FOLDER_LIST_QUERY_TOKEN, null, Notes.CONTENT_NOTE_URI, @@ -934,7 +992,13 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt }, NoteColumns.MODIFIED_DATE + " DESC"); } - + + /* (non-Javadoc) + * @see android.widget.AdapterView.OnItemLongClickListener#onItemLongClick(android.widget.AdapterView, android.view.View, int, long) + * 长按某一项时进行的操作 + * 如果长按的是便签，则通过ActionMode菜单实现；如果长按的是文件夹，则通过ContextMenu菜单实现； + * 具体ActionMOde菜单和ContextMenu菜单的详细见精度笔记 + */ public boolean onItemLongClick(AdapterView parent, View view, int position, long id) { if (view instanceof NotesListItem) { mFocusNoteDataItem = ((NotesListItem) view).getItemData(); @@ -951,4 +1015,4 @@ public class NotesListActivity extends Activity implements OnClickListener, OnIt } return false; } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/NotesListAdapter.java b/src/Notes-master/src/net/micode/notes/ui/NotesListAdapter.java index 51c9cb9..b79c464 100644 --- a/src/Notes-master/src/net/micode/notes/ui/NotesListAdapter.java +++ b/src/Notes-master/src/net/micode/notes/ui/NotesListAdapter.java @@ -15,71 +15,111 @@ */ package net.micode.notes.ui; - + import android.content.Context; import android.database.Cursor; import android.util.Log; -import android.view.View; +import android.view.View; import android.view.ViewGroup; import android.widget.CursorAdapter; - + + import net.micode.notes.data.Notes; - + import java.util.Collection; import java.util.HashMap; import java.util.HashSet; import java.util.Iterator; - - + + +/* + * 功能：直译为便签表连接器，继承了CursorAdapter，它为cursor和ListView提供了连接的桥梁。 + * 所以NotesListAdapter实现的是鼠标和编辑便签链接的桥梁 + */ public class NotesListAdapter extends CursorAdapter { private static final String TAG = "NotesListAdapter"; private Context mContext; private HashMap mSelectedIndex; - private int mNotesCount; - private boolean mChoiceMode; - + private int mNotesCount; //便签数 + private boolean mChoiceMode; //选择模式标记 + + /* + * 桌面widget的属性，包括编号和类型 + */ public static class AppWidgetAttribute { public int widgetId; public int widgetType; }; - + + /* + * 函数功能：初始化便签链接器 + * 函数实现：根据传进来的内容设置相关变量 + */ public NotesListAdapter(Context context) { - super(context, null); - mSelectedIndex = new HashMap(); + super(context, null); //父类对象置空 + mSelectedIndex = new HashMap(); //新建选项下标的hash表 mContext = context; mNotesCount = 0; } - + @Override + /* + * 函数功能：新建一个视图来存储光标所指向的数据 + * 函数实现：使用兄弟类NotesListItem新建一个项目选项 + */ public View newView(Context context, Cursor cursor, ViewGroup parent) { return new NotesListItem(context); } - + + /* + * 函数功能：将已经存在的视图和鼠标指向的数据进行捆绑 + * 函数实现：如下注释 + */ @Override public void bindView(View view, Context context, Cursor cursor) { if (view instanceof NotesListItem) { + //若view是NotesListItem的一个实例 NoteItemData itemData = new NoteItemData(context, cursor); ((NotesListItem) view).bind(context, itemData, mChoiceMode, isSelectedItem(cursor.getPosition())); + //则新建一个项目选项并且用bind跟将view和鼠标，内容，便签数据捆绑在一起 } } - + + /* + * 函数功能：设置勾选框 + * 函数实现：如下注释 + */ public void setCheckedItem(final int position, final boolean checked) { mSelectedIndex.put(position, checked); + //根据定位和是否勾选设置下标 notifyDataSetChanged(); + //在修改后刷新activity } - + + /* + * 函数功能：判断单选按钮是否勾选 + */ public boolean isInChoiceMode() { return mChoiceMode; } - + + /* + * 函数功能：设置单项选项框 + * 函数实现：重置下标并且根据参数mode设置选项 + */ public void setChoiceMode(boolean mode) { mSelectedIndex.clear(); mChoiceMode = mode; } - + + /* + * 函数功能：选择全部选项 + * 函数实现：如下注释 + */ public void selectAll(boolean checked) { Cursor cursor = getCursor(); + //获取光标位置 for (int i = 0; i < getCount(); i++) { if (cursor.moveToPosition(i)) { if (NoteItemData.getNoteType(cursor) == Notes.TYPE_NOTE) { @@ -87,30 +127,47 @@ public class NotesListAdapter extends CursorAdapter { } } } + //遍历所有光标可用的位置在判断为便签类型之后勾选单项框 } - + + /* + * 函数功能：建立选择项的下标列表 + * 函数实现：如下注释 + */ public HashSet getSelectedItemIds() { HashSet itemSet = new HashSet(); + //建立hash表 for (Integer position : mSelectedIndex.keySet()) { + //遍历所有的关键 if (mSelectedIndex.get(position) == true) { + //若光标位置可用 Long id = getItemId(position); if (id == Notes.ID_ROOT_FOLDER) { + //原文件不需要添加 Log.d(TAG, "Wrong item id, should not happen"); } else { itemSet.add(id); } + //则将id该下标假如选项集合中 + } } - + return itemSet; } - + + /* + * 函数功能：建立桌面Widget的选项表 + * 函数实现：如下注释 + */ public HashSet getSelectedWidget() { HashSet itemSet = new HashSet(); for (Integer position : mSelectedIndex.keySet()) { if (mSelectedIndex.get(position) == true) { Cursor c = (Cursor) getItem(position); + //以上4句和getSelectedItemIds一样，不再重复 if (c != null) { + //光标位置可用的话就建立新的Widget属性并编辑下标和类型，最后添加到选项集中 AppWidgetAttribute widget = new AppWidgetAttribute(); NoteItemData item = new NoteItemData(mContext, c); widget.widgetId = item.getWidgetId(); @@ -127,58 +184,90 @@ public class NotesListAdapter extends CursorAdapter { } return itemSet; } - + + /* + * 函数功能：获取选项个数 + * 函数实现：如下注释 + */ public int getSelectedCount() { Collection values = mSelectedIndex.values(); + //首先获取选项下标的值 if (null == values) { return 0; } Iterator iter = values.iterator(); + //初始化叠加器 int count = 0; while (iter.hasNext()) { if (true == iter.next()) { + //若value值为真计数+1 count++; } } return count; } - + + /* + * 函数功能：判断是否全部选中 + * 函数实现：如下注释 + */ public boolean isAllSelected() { int checkedCount = getSelectedCount(); return (checkedCount != 0 && checkedCount == mNotesCount); + //获取选项数看是否等于便签的个数 } - + + /* + * 函数功能：判断是否为选项表 + * 函数实现：通过传递的下标来确定 + */ public boolean isSelectedItem(final int position) { if (null == mSelectedIndex.get(position)) { return false; } return mSelectedIndex.get(position); } - + @Override + /* + * 函数功能：在activity内容发生局部变动的时候回调该函数计算便签的数量 + * 函数实现：如下注释 + */ protected void onContentChanged() { super.onContentChanged(); + //执行基类函数 calcNotesCount(); } - + @Override + /* + * 函数功能：在activity光标发生局部变动的时候回调该函数计算便签的数量 + */ public void changeCursor(Cursor cursor) { super.changeCursor(cursor); + //执行基类函数 calcNotesCount(); } - + + /* + * 函数功能：计算便签数量 + * + */ private void calcNotesCount() { mNotesCount = 0; for (int i = 0; i < getCount(); i++) { + //获取总数同时遍历 Cursor c = (Cursor) getItem(i); if (c != null) { if (NoteItemData.getNoteType(c) == Notes.TYPE_NOTE) { mNotesCount++; + //若该位置不为空并且文本类型为便签就+1 } } else { Log.e(TAG, "Invalid cursor"); return; } + //否则报错 } - } -} + } +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/NotesListItem.java b/src/Notes-master/src/net/micode/notes/ui/NotesListItem.java index 1221e80..3ce0614 100644 --- a/src/Notes-master/src/net/micode/notes/ui/NotesListItem.java +++ b/src/Notes-master/src/net/micode/notes/ui/NotesListItem.java @@ -15,7 +15,7 @@ */ package net.micode.notes.ui; - + import android.content.Context; import android.text.format.DateUtils; import android.view.View; @@ -23,44 +23,50 @@ import android.widget.CheckBox; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.TextView; - + import net.micode.notes.R; import net.micode.notes.data.Notes; import net.micode.notes.tool.DataUtils; import net.micode.notes.tool.ResourceParser.NoteItemBgResources; - - + + +//创建便签列表项目选项 public class NotesListItem extends LinearLayout { - private ImageView mAlert; - private TextView mTitle; - private TextView mTime; - private TextView mCallName; - private NoteItemData mItemData; - private CheckBox mCheckBox; - + private ImageView mAlert;//闹钟图片 + private TextView mTitle; //标题 + private TextView mTime; //时间 + private TextView mCallName; // + private NoteItemData mItemData; //标签数据 + private CheckBox mCheckBox; //打钩框 + + /*初始化基本信息*/ public NotesListItem(Context context) { - super(context); - inflate(context, R.layout.note_item, this); + super(context); //super()它的主要作用是调整调用父类构造函数的顺序 + inflate(context, R.layout.note_item, this);//Inflate可用于将一个xml中定义的布局控件找出来,这里的xml是r。layout + //findViewById用于从contentView中查找指定ID的View，转换出来的形式根据需要而定; mAlert = (ImageView) findViewById(R.id.iv_alert_icon); mTitle = (TextView) findViewById(R.id.tv_title); mTime = (TextView) findViewById(R.id.tv_time); mCallName = (TextView) findViewById(R.id.tv_name); mCheckBox = (CheckBox) findViewById(android.R.id.checkbox); } - + ///根据data的属性对各个控件的属性的控制，主要是可见性Visibility，内容setText，格式setTextAppearance public void bind(Context context, NoteItemData data, boolean choiceMode, boolean checked) { if (choiceMode && data.getType() == Notes.TYPE_NOTE) { - mCheckBox.setVisibility(View.VISIBLE); - mCheckBox.setChecked(checked); + mCheckBox.setVisibility(View.VISIBLE); ///设置可见行为可见 + mCheckBox.setChecked(checked); ///格子打钩 } else { mCheckBox.setVisibility(View.GONE); } - + mItemData = data; + ///设置控件属性，一共三种情况，由data的id和父id是否与保存到文件夹的id一致来决定 if (data.getId() == Notes.ID_CALL_RECORD_FOLDER) { mCallName.setVisibility(View.GONE); mAlert.setVisibility(View.VISIBLE); + //设置该textview的style mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem); + //settext为设置内容 mTitle.setText(context.getString(R.string.call_record_folder_name) + context.getString(R.string.format_folder_files_count, data.getNotesCount())); mAlert.setImageResource(R.drawable.call_record); @@ -69,8 +75,9 @@ public class NotesListItem extends LinearLayout { mCallName.setText(data.getCallName()); mTitle.setTextAppearance(context,R.style.TextAppearanceSecondaryItem); mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet())); + ///关于闹钟的设置 if (data.hasAlert()) { - mAlert.setImageResource(R.drawable.clock); + mAlert.setImageResource(R.drawable.clock);//图片来源的设置 mAlert.setVisibility(View.VISIBLE); } else { mAlert.setVisibility(View.GONE); @@ -78,7 +85,7 @@ public class NotesListItem extends LinearLayout { } else { mCallName.setVisibility(View.GONE); mTitle.setTextAppearance(context, R.style.TextAppearancePrimaryItem); - + ///设置title格式 if (data.getType() == Notes.TYPE_FOLDER) { mTitle.setText(data.getSnippet() + context.getString(R.string.format_folder_files_count, @@ -87,36 +94,39 @@ public class NotesListItem extends LinearLayout { } else { mTitle.setText(DataUtils.getFormattedSnippet(data.getSnippet())); if (data.hasAlert()) { - mAlert.setImageResource(R.drawable.clock); + mAlert.setImageResource(R.drawable.clock);///设置图片来源 mAlert.setVisibility(View.VISIBLE); } else { mAlert.setVisibility(View.GONE); } } } - mTime.setText(DateUtils.getRelativeTimeSpanString(data.getModifiedDate())); - + ///设置内容，获取相关时间，从data里编辑的日期中获取 + mTime. setText(DateUtils.getRelativeTimeSpanString(data.getModifiedDate())); + setBackground(data); } - + //根据data的文件属性来设置背景 private void setBackground(NoteItemData data) { int id = data.getBgColorId(); + //，若是note型文件，则4种情况，对于4种不同情况的背景来源 if (data.getType() == Notes.TYPE_NOTE) { + //单个数据并且只有一个子文件夹 if (data.isSingle() || data.isOneFollowingFolder()) { setBackgroundResource(NoteItemBgResources.getNoteBgSingleRes(id)); - } else if (data.isLast()) { + } else if (data.isLast()) {//是最后一个数据 setBackgroundResource(NoteItemBgResources.getNoteBgLastRes(id)); - } else if (data.isFirst() || data.isMultiFollowingFolder()) { + } else if (data.isFirst() || data.isMultiFollowingFolder()) {//是一个数据并有多个子文件夹 setBackgroundResource(NoteItemBgResources.getNoteBgFirstRes(id)); } else { setBackgroundResource(NoteItemBgResources.getNoteBgNormalRes(id)); } } else { + //若不是note直接调用文件夹的背景来源 setBackgroundResource(NoteItemBgResources.getFolderBgRes()); } } - public NoteItemData getItemData() { return mItemData; } -} +} \ No newline at end of file diff --git a/src/Notes-master/src/net/micode/notes/ui/NotesPreferenceActivity.java b/src/Notes-master/src/net/micode/notes/ui/NotesPreferenceActivity.java index 07c5f7e..34a1ebc 100644 --- a/src/Notes-master/src/net/micode/notes/ui/NotesPreferenceActivity.java +++ b/src/Notes-master/src/net/micode/notes/ui/NotesPreferenceActivity.java @@ -15,7 +15,7 @@ */ package net.micode.notes.ui; - + import android.accounts.Account; import android.accounts.AccountManager; import android.app.ActionBar; @@ -41,108 +41,151 @@ import android.view.View; import android.widget.Button; import android.widget.TextView; import android.widget.Toast; - + import net.micode.notes.R; import net.micode.notes.data.Notes; import net.micode.notes.data.Notes.NoteColumns; import net.micode.notes.gtask.remote.GTaskSyncService; - - + +/* + *该类功能：NotesPreferenceActivity，在小米便签中主要实现的是对背景颜色和字体大小的数据储存。 + * 继承了PreferenceActivity主要功能为对系统信息和配置进行自动保存的Activity + */ public class NotesPreferenceActivity extends PreferenceActivity { public static final String PREFERENCE_NAME = "notes_preferences"; - + //优先名 public static final String PREFERENCE_SYNC_ACCOUNT_NAME = "pref_key_account_name"; - + //同步账号 public static final String PREFERENCE_LAST_SYNC_TIME = "pref_last_sync_time"; - + //同步时间 public static final String PREFERENCE_SET_BG_COLOR_KEY = "pref_key_bg_random_appear"; - + private static final String PREFERENCE_SYNC_ACCOUNT_KEY = "pref_sync_account_key"; - + //同步密码 private static final String AUTHORITIES_FILTER_KEY = "authorities"; - + //本地密码 private PreferenceCategory mAccountCategory; - + //账户分组 private GTaskReceiver mReceiver; - + //同步任务接收器 private Account[] mOriAccounts; - + //账户 private boolean mHasAddedAccount; - + //账户的hash标记 + @Override + /* + *函数功能：创建一个activity，在函数里要完成所有的正常静态设置 + *参数：Bundle icicle：存放了 activity 当前的状态 + *函数实现：如下注释 + */ protected void onCreate(Bundle icicle) { + //先执行父类的创建函数 super.onCreate(icicle); - + /* using the app icon for navigation */ getActionBar().setDisplayHomeAsUpEnabled(true); - + //给左上角图标的左边加上一个返回的图标 + addPreferencesFromResource(R.xml.preferences); + //添加xml来源并显示 xml mAccountCategory = (PreferenceCategory) findPreference(PREFERENCE_SYNC_ACCOUNT_KEY); + //根据同步账户关键码来初始化分组 mReceiver = new GTaskReceiver(); IntentFilter filter = new IntentFilter(); filter.addAction(GTaskSyncService.GTASK_SERVICE_BROADCAST_NAME); registerReceiver(mReceiver, filter); - + //初始化同步组件 + mOriAccounts = null; View header = LayoutInflater.from(this).inflate(R.layout.settings_header, null); + //获取listvivew，ListView的作用:用于列出所有选择 getListView().addHeaderView(header, null, true); + //在listview组件上方添加其他组件 } - + @Override + /* + * 函数功能：activity交互功能的实现，用于接受用户的输入 + * 函数实现：如下注释 + */ protected void onResume() { + //先执行父类 的交互实现 super.onResume(); - + // need to set sync account automatically if user has added a new // account if (mHasAddedAccount) { + //若用户新加了账户则自动设置同步账户 Account[] accounts = getGoogleAccounts(); + //获取google同步账户 if (mOriAccounts != null && accounts.length > mOriAccounts.length) { - for (Account accountNew : accounts) { + //若原账户不为空且当前账户有增加 + for (Account accountNew : accounts) { boolean found = false; for (Account accountOld : mOriAccounts) { if (TextUtils.equals(accountOld.name, accountNew.name)) { + //更新账户 found = true; break; } } if (!found) { setSyncAccount(accountNew.name); + //若是没有找到旧的账户，那么同步账号中就只添加新账户 break; } } } } - + refreshUI(); + //刷新标签界面 } - + @Override + /* + * 函数功能：销毁一个activity + * 函数实现：如下注释 + */ protected void onDestroy() { if (mReceiver != null) { unregisterReceiver(mReceiver); + //注销接收器 } super.onDestroy(); + //执行父类的销毁动作 } - + + /* + * 函数功能：重新设置账户信息 + * 函数实现：如下注释 + */ private void loadAccountPreference() { mAccountCategory.removeAll(); - + //销毁所有的分组 Preference accountPref = new Preference(this); + //建立首选项 final String defaultAccount = getSyncAccountName(this); accountPref.setTitle(getString(R.string.preferences_account_title)); accountPref.setSummary(getString(R.string.preferences_account_summary)); + //设置首选项的大标题和小标题 accountPref.setOnPreferenceClickListener(new OnPreferenceClickListener() { public boolean onPreferenceClick(Preference preference) { + //建立监听器 if (!GTaskSyncService.isSyncing()) { if (TextUtils.isEmpty(defaultAccount)) { // the first time to set account + //若是第一次建立账户显示选择账户提示对话框 showSelectAccountAlertDialog(); } else { // if the account has already been set, we need to promp // user about the risk + //若是已经建立则显示修改对话框并进行修改操作 showChangeAccountConfirmAlertDialog(); } } else { + //若在没有同步的情况下，则在toast中显示不能修改 Toast.makeText(NotesPreferenceActivity.this, R.string.preferences_toast_cannot_change_account, Toast.LENGTH_SHORT) .show(); @@ -150,22 +193,30 @@ public class NotesPreferenceActivity extends PreferenceActivity { return true; } }); - + + //根据新建首选项编辑新的账户分组 mAccountCategory.addPreference(accountPref); } - + + /* + *函数功能：设置按键的状态和最后同步的时间 + *函数实现：如下注释 + */ private void loadSyncButton() { Button syncButton = (Button) findViewById(R.id.preference_sync_button); TextView lastSyncTimeView = (TextView) findViewById(R.id.prefenerece_sync_status_textview); - + //获取同步按钮控件和最终同步时间的的窗口 // set button state + //设置按钮的状态 if (GTaskSyncService.isSyncing()) { + //若是在同步状态下 syncButton.setText(getString(R.string.preferences_button_sync_cancel)); syncButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { GTaskSyncService.cancelSync(NotesPreferenceActivity.this); } }); + //设置按钮显示的文本为“取消同步”以及监听器 } else { syncButton.setText(getString(R.string.preferences_button_sync_immediately)); syncButton.setOnClickListener(new View.OnClickListener() { @@ -173,50 +224,67 @@ public class NotesPreferenceActivity extends PreferenceActivity { GTaskSyncService.startSync(NotesPreferenceActivity.this); } }); + //若是不同步则设置按钮显示的文本为“立即同步”以及对应监听器 } syncButton.setEnabled(!TextUtils.isEmpty(getSyncAccountName(this))); - + //设置按键可用还是不可用 + // set last sync time + // 设置最终同步时间 if (GTaskSyncService.isSyncing()) { + //若是在同步的情况下 lastSyncTimeView.setText(GTaskSyncService.getProgressString()); lastSyncTimeView.setVisibility(View.VISIBLE); + // 根据当前同步服务器设置时间显示框的文本以及可见性 } else { + //若是非同步情况 long lastSyncTime = getLastSyncTime(this); if (lastSyncTime != 0) { lastSyncTimeView.setText(getString(R.string.preferences_last_sync_time, DateFormat.format(getString(R.string.preferences_last_sync_time_format), lastSyncTime))); lastSyncTimeView.setVisibility(View.VISIBLE); + //则根据最后同步时间的信息来编辑时间显示框的文本内容和可见性 } else { + //若时间为空直接设置为不可见状态 lastSyncTimeView.setVisibility(View.GONE); } } } - + /* + *函数功能：刷新标签界面 + *函数实现：调用上文设置账号和设置按键两个函数来实现 + */ private void refreshUI() { loadAccountPreference(); loadSyncButton(); } - + + /* + * 函数功能：显示账户选择的对话框并进行账户的设置 + * 函数实现：如下注释 + */ private void showSelectAccountAlertDialog() { AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this); - + //创建一个新的对话框 + View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null); TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title); titleTextView.setText(getString(R.string.preferences_dialog_select_account_title)); TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle); subtitleTextView.setText(getString(R.string.preferences_dialog_select_account_tips)); - + //设置标题以及子标题的内容 dialogBuilder.setCustomTitle(titleView); dialogBuilder.setPositiveButton(null, null); - + //设置对话框的自定义标题，建立一个YES的按钮 Account[] accounts = getGoogleAccounts(); String defAccount = getSyncAccountName(this); - + //获取同步账户信息 mOriAccounts = accounts; mHasAddedAccount = false; - + if (accounts.length > 0) { + //若账户不为空 CharSequence[] items = new CharSequence[accounts.length]; final CharSequence[] itemMapping = items; int checkedItem = -1; @@ -224,84 +292,120 @@ public class NotesPreferenceActivity extends PreferenceActivity { for (Account account : accounts) { if (TextUtils.equals(account.name, defAccount)) { checkedItem = index; + //在账户列表中查询到所需账户 } items[index++] = account.name; } dialogBuilder.setSingleChoiceItems(items, checkedItem, + //在对话框建立一个单选的复选框 new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { setSyncAccount(itemMapping[which].toString()); dialog.dismiss(); + //取消对话框 refreshUI(); } + //设置点击后执行的事件，包括检录新同步账户和刷新标签界面 }); + //建立对话框网络版的监听器 } - + View addAccountView = LayoutInflater.from(this).inflate(R.layout.add_account_text, null); dialogBuilder.setView(addAccountView); - + //给新加账户对话框设置自定义样式 + final AlertDialog dialog = dialogBuilder.show(); + //显示对话框 addAccountView.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { mHasAddedAccount = true; + //将新加账户的hash置true Intent intent = new Intent("android.settings.ADD_ACCOUNT_SETTINGS"); + //建立网络建立组件 intent.putExtra(AUTHORITIES_FILTER_KEY, new String[] { "gmail-ls" }); startActivityForResult(intent, -1); + //跳回上一个选项 dialog.dismiss(); } }); + //建立新加账户对话框的监听器 } - + + /* + * 函数功能：显示账户选择对话框和相关账户操作 + * 函数实现：如下注释 + */ private void showChangeAccountConfirmAlertDialog() { AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this); - + //创建一个新的对话框 View titleView = LayoutInflater.from(this).inflate(R.layout.account_dialog_title, null); TextView titleTextView = (TextView) titleView.findViewById(R.id.account_dialog_title); titleTextView.setText(getString(R.string.preferences_dialog_change_account_title, getSyncAccountName(this))); TextView subtitleTextView = (TextView) titleView.findViewById(R.id.account_dialog_subtitle); subtitleTextView.setText(getString(R.string.preferences_dialog_change_account_warn_msg)); + //根据同步修改的账户信息设置标题以及子标题的内容 dialogBuilder.setCustomTitle(titleView); - + //设置对话框的自定义标题 CharSequence[] menuItemArray = new CharSequence[] { getString(R.string.preferences_menu_change_account), getString(R.string.preferences_menu_remove_account), getString(R.string.preferences_menu_cancel) }; + //定义一些标记字符串 dialogBuilder.setItems(menuItemArray, new DialogInterface.OnClickListener() { + //设置对话框要显示的一个list，用于显示几个命令时,即change，remove，cancel public void onClick(DialogInterface dialog, int which) { + //按键功能，由which来决定 if (which == 0) { + //进入账户选择对话框 showSelectAccountAlertDialog(); } else if (which == 1) { + //删除账户并且跟新便签界面 removeSyncAccount(); refreshUI(); } } }); dialogBuilder.show(); + //显示对话框 } - + + /* + *函数功能：获取谷歌账户 + *函数实现：通过账户管理器直接获取 + */ private Account[] getGoogleAccounts() { AccountManager accountManager = AccountManager.get(this); return accountManager.getAccountsByType("com.google"); } - + + /* + * 函数功能：设置同步账户 + * 函数实现：如下注释： + */ private void setSyncAccount(String account) { if (!getSyncAccountName(this).equals(account)) { + //假如该账号不在同步账号列表中 SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); SharedPreferences.Editor editor = settings.edit(); + //编辑共享的首选项 if (account != null) { editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, account); } else { editor.putString(PREFERENCE_SYNC_ACCOUNT_NAME, ""); } + //将该账号加入到首选项中 + editor.commit(); - - // clean up last sync time + //提交修改的数据 + + setLastSyncTime(this, 0); - + //将最后同步时间清零 + // clean up local gtask related info new Thread(new Runnable() { public void run() { @@ -311,24 +415,34 @@ public class NotesPreferenceActivity extends PreferenceActivity { getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null); } }).start(); - + //重置当地同步任务的信息 + Toast.makeText(NotesPreferenceActivity.this, getString(R.string.preferences_toast_success_set_accout, account), Toast.LENGTH_SHORT).show(); + //将toast的文本信息置为“设置账户成功”并显示出来 } } - + /* + * 函数功能：删除同步账户 + * 函数实现：如下注释： + */ private void removeSyncAccount() { SharedPreferences settings = getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); SharedPreferences.Editor editor = settings.edit(); + //设置共享首选项 + if (settings.contains(PREFERENCE_SYNC_ACCOUNT_NAME)) { editor.remove(PREFERENCE_SYNC_ACCOUNT_NAME); + //假如当前首选项中有账户就删除 } if (settings.contains(PREFERENCE_LAST_SYNC_TIME)) { editor.remove(PREFERENCE_LAST_SYNC_TIME); + //删除当前首选项中有账户时间 } editor.commit(); - + //提交更新后的数据 + // clean up local gtask related info new Thread(new Runnable() { public void run() { @@ -338,51 +452,79 @@ public class NotesPreferenceActivity extends PreferenceActivity { getContentResolver().update(Notes.CONTENT_NOTE_URI, values, null, null); } }).start(); + //重置当地同步任务的信息 } - + + /* + * 函数功能：获取同步账户名称 + * 函数实现：通过共享的首选项里的信息直接获取 + */ public static String getSyncAccountName(Context context) { SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); return settings.getString(PREFERENCE_SYNC_ACCOUNT_NAME, ""); } - + + /* + * 函数功能：设置最终同步的时间 + * 函数实现：如下注释 + */ public static void setLastSyncTime(Context context, long time) { SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); SharedPreferences.Editor editor = settings.edit(); + // 从共享首选项中找到相关账户并获取其编辑器 editor.putLong(PREFERENCE_LAST_SYNC_TIME, time); editor.commit(); + //编辑最终同步时间并提交更新 } - + /* + * 函数功能：获取最终同步时间 + * 函数实现：通过共享的首选项里的信息直接获取 + */ public static long getLastSyncTime(Context context) { SharedPreferences settings = context.getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE); return settings.getLong(PREFERENCE_LAST_SYNC_TIME, 0); } - + + /* + * 函数功能：接受同步信息 + * 函数实现：继承BroadcastReceiver + */ private class GTaskReceiver extends BroadcastReceiver { - + @Override public void onReceive(Context context, Intent intent) { refreshUI(); if (intent.getBooleanExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_IS_SYNCING, false)) { - TextView syncStatus = (TextView) findViewById(R.id.prefenerece_sync_status_textview); + //获取随广播而来的Intent中的同步服务的数据 + TextView syncStatus = (TextView) findViewById(R.id.prefenerece_sync_status_textview); syncStatus.setText(intent .getStringExtra(GTaskSyncService.GTASK_SERVICE_BROADCAST_PROGRESS_MSG)); + //通过获取的数据在设置系统的状态 } - + } } - + + /* + * 函数功能：处理菜单的选项 + * 函数实现：如下注释 + * 参数:MenuItem菜单选项 + */ public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { + //根据选项的id选择，这里只有一个主页 case android.R.id.home: Intent intent = new Intent(this, NotesListActivity.class); intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); startActivity(intent); return true; + //在主页情况下在创建连接组件intent，发出清空的信号并开始一个相应的activity default: return false; } } } + \ No newline at end of file