From eeb31d68454a9f50b68432ace386a1b1abe2891b Mon Sep 17 00:00:00 2001 From: Mccranky83 Date: Thu, 11 May 2023 14:42:21 +0800 Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=E4=BB=A3=E7=A0=81=E7=B2=BE?= =?UTF-8?q?=E8=AF=BB=E3=80=82?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- res/代码精读/data/Contact.java | 70 ++++ res/代码精读/data/Notes.java | 268 ++++++++++++ .../data/NotesDatabaseHelper.java | 347 ++++++++++++++++ res/代码精读/data/NotesProvider.java | 289 +++++++++++++ res/代码精读/model/Note.java | 281 +++++++++++++ res/代码精读/model/WorkingNote.java | 381 ++++++++++++++++++ res/代码精读/res/values-zh-rCN/arrays.xml | 8 + .../res/values-zh-rCN/strings.xml | 112 +++++ res/代码精读/res/values-zh-rTW/arrays.xml | 8 + .../res/values-zh-rTW/strings.xml | 112 +++++ res/代码精读/res/values/arrays.xml | 16 + res/代码精读/res/values/colors.xml | 5 + res/代码精读/res/values/dimens.xml | 9 + res/代码精读/res/values/strings.xml | 135 +++++++ res/代码精读/res/values/styles.xml | 65 +++ res/代码精读/res/xml/preferences.xml | 17 + res/代码精读/res/xml/searchable.xml | 12 + res/代码精读/res/xml/widget_2x_info.xml | 11 + res/代码精读/res/xml/widget_4x_info.xml | 13 + res/代码精读/tool/BackupUtils.java | 372 +++++++++++++++++ res/代码精读/tool/DataUtils.java | 329 +++++++++++++++ res/代码精读/tool/GTaskStringUtils.java | 113 ++++++ res/代码精读/tool/ResourceParser.java | 181 +++++++++ .../widget/NoteWidgetProvider.java | 147 +++++++ .../widget/NoteWidgetProvider_2x.java | 60 +++ .../widget/NoteWidgetProvider_4x.java | 59 +++ 26 files changed, 3420 insertions(+) create mode 100644 res/代码精读/data/Contact.java create mode 100644 res/代码精读/data/Notes.java create mode 100644 res/代码精读/data/NotesDatabaseHelper.java create mode 100644 res/代码精读/data/NotesProvider.java create mode 100644 res/代码精读/model/Note.java create mode 100644 res/代码精读/model/WorkingNote.java create mode 100644 res/代码精读/res/values-zh-rCN/arrays.xml create mode 100644 res/代码精读/res/values-zh-rCN/strings.xml create mode 100644 res/代码精读/res/values-zh-rTW/arrays.xml create mode 100644 res/代码精读/res/values-zh-rTW/strings.xml create mode 100644 res/代码精读/res/values/arrays.xml create mode 100644 res/代码精读/res/values/colors.xml create mode 100644 res/代码精读/res/values/dimens.xml create mode 100644 res/代码精读/res/values/strings.xml create mode 100644 res/代码精读/res/values/styles.xml create mode 100644 res/代码精读/res/xml/preferences.xml create mode 100644 res/代码精读/res/xml/searchable.xml create mode 100755 res/代码精读/res/xml/widget_2x_info.xml create mode 100755 res/代码精读/res/xml/widget_4x_info.xml create mode 100644 res/代码精读/tool/BackupUtils.java create mode 100644 res/代码精读/tool/DataUtils.java create mode 100644 res/代码精读/tool/GTaskStringUtils.java create mode 100644 res/代码精读/tool/ResourceParser.java create mode 100644 res/代码精读/widget/NoteWidgetProvider.java create mode 100644 res/代码精读/widget/NoteWidgetProvider_2x.java create mode 100644 res/代码精读/widget/NoteWidgetProvider_4x.java diff --git a/res/代码精读/data/Contact.java b/res/代码精读/data/Contact.java new file mode 100644 index 00000000..6f51d932 --- /dev/null +++ b/res/代码精读/data/Contact.java @@ -0,0 +1,70 @@ +package net.micode.notes.data; + +import android.content.Context; +import android.database.Cursor; +import android.provider.ContactsContract.CommonDataKinds.Phone; +import android.provider.ContactsContract.Data; +import android.telephony.PhoneNumberUtils; +import android.util.Log; + +import java.util.HashMap; + +public class Contact { + private static HashMap sContactCache; + private static final String TAG = "Contact"; + + 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 " + + "(SELECT raw_contact_id " + + " FROM phone_lookup" + + " WHERE min_match = '+')"; + + /** + * 从通讯录中获取给定电话号码对应的联系人名字 + * @param context 应用程序上下文 + * @param phoneNumber 电话号码 + * @return 联系人名字，如果未找到则返回null + */ + public static String getContact(Context context, String phoneNumber) { + // 如果缓存为空，则初始化一个HashMap对象作为缓存 + if (sContactCache == null) { + sContactCache = new HashMap(); + } + + // 如果缓存中存在该电话号码对应的联系人名字，则直接返回 + if (sContactCache.containsKey(phoneNumber)) { + return sContactCache.get(phoneNumber); + } + + // 构造查询条件，使用给定的电话号码作为参数 + String selection = CALLER_ID_SELECTION.replace("+", + PhoneNumberUtils.toCallerIDMinMatch(phoneNumber)); + // 查询通讯录数据库，查询结果包含指定电话号码的联系人名字 + Cursor cursor = context.getContentResolver().query( + Data.CONTENT_URI, + new String[] { Phone.DISPLAY_NAME }, + selection, + new String[] { phoneNumber }, + null); + + // 如果查询结果非空，则获取第一条结果中的联系人名字，并将其存入缓存 + if (cursor != null && cursor.moveToFirst()) { + try { + String name = cursor.getString(0); + sContactCache.put(phoneNumber, name); // 将联系人名字存入缓存 + return name; + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, " Cursor get string error " + e.toString()); + return null; + } finally { + cursor.close(); + } + } else { + // 如果查询结果为空，则记录日志并返回null + Log.d(TAG, "No contact matched with number:" + phoneNumber); + return null; + } + } + +} diff --git a/res/代码精读/data/Notes.java b/res/代码精读/data/Notes.java new file mode 100644 index 00000000..eac83b34 --- /dev/null +++ b/res/代码精读/data/Notes.java @@ -0,0 +1,268 @@ +// 对便签本身进行操作 + +package net.micode.notes.data; + +import android.net.Uri; +public class Notes { + public static final String AUTHORITY = "micode_notes"; + public static final String TAG = "Notes"; + 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 + * {@link Notes#ID_TEMPARAY_FOLDER } is for notes belonging no folder + * {@link Notes#ID_CALL_RECORD_FOLDER} is to store call records + */ + public static final int ID_ROOT_FOLDER = 0; + 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 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"); + + /** + * Uri to query data + */ + public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data"); + + public interface NoteColumns { + // 建立便签独有id + /** + * The unique ID for a row + *

Type: INTEGER (long)

+ */ + public static final String ID = "_id"; + + // 确立母文件夹位置 + /** + * The parent's id for note or folder + *

Type: INTEGER (long)

+ */ + public static final String PARENT_ID = "parent_id"; + + // 写入便签数据 + /** + * 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"; + + /** + * 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"; + } + + 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 + * integer data type + *

Type: INTEGER

+ */ + public static final String DATA1 = "data1"; + + /** + * 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 + * TEXT data type + *

Type: TEXT

+ */ + public static final String DATA3 = "data3"; + + /** + * 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 + * TEXT data type + *

Type: TEXT

+ */ + public static final String DATA5 = "data5"; + } + + 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 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"); + } +} diff --git a/res/代码精读/data/NotesDatabaseHelper.java b/res/代码精读/data/NotesDatabaseHelper.java new file mode 100644 index 00000000..0166eb1e --- /dev/null +++ b/res/代码精读/data/NotesDatabaseHelper.java @@ -0,0 +1,347 @@ + +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.util.Log; + +import net.micode.notes.data.Notes.DataColumns; +import net.micode.notes.data.Notes.DataConstants; +import net.micode.notes.data.Notes.NoteColumns; + + +public class NotesDatabaseHelper extends SQLiteOpenHelper { + private static final String DB_NAME = "note.db"; + + private static final int DB_VERSION = 4; + + public interface TABLE { + 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," + + NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," + + NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," + + NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," + + NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" + + ")"; + + private static final String CREATE_DATA_TABLE_SQL = + "CREATE TABLE " + TABLE.DATA + "(" + + DataColumns.ID + " INTEGER PRIMARY KEY," + + DataColumns.MIME_TYPE + " TEXT NOT NULL," + + DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," + + NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," + + DataColumns.DATA1 + " INTEGER," + + DataColumns.DATA2 + " INTEGER," + + DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," + + DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," + + DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" + + ")"; + + private static final String CREATE_DATA_NOTE_ID_INDEX_SQL = + "CREATE INDEX IF NOT EXISTS note_id_index ON " + + TABLE.DATA + "(" + DataColumns.NOTE_ID + ");"; + + /** + * 把便签挪动进入数据库，便签数加一 + */ + private static final String NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER = + "CREATE TRIGGER increase_folder_count_on_update "+ + " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE + + " BEGIN " + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" + + " WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" + + " END"; + + /** + * 把便签挪动进出数据库，便签数减一 + */ + private static final String NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER = + "CREATE TRIGGER decrease_folder_count_on_update " + + " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE + + " BEGIN " + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" + + " WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID + + " AND " + NoteColumns.NOTES_COUNT + ">0" + ";" + + " END"; + + /** + * 把便签挪动进入文件夹，便签数加一 + */ + private static final String NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER = + "CREATE TRIGGER increase_folder_count_on_insert " + + " AFTER INSERT ON " + TABLE.NOTE + + " BEGIN " + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" + + " WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" + + " END"; + + /** + * 把便签挪动进出文件夹，便签数减一 + */ + private static final String NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER = + "CREATE TRIGGER decrease_folder_count_on_delete " + + " AFTER DELETE ON " + TABLE.NOTE + + " BEGIN " + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" + + " WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID + + " AND " + NoteColumns.NOTES_COUNT + ">0;" + + " END"; + + /** + * 更新便签数据类型1 {@link DataConstants#NOTE} + */ + private static final String DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER = + "CREATE TRIGGER update_note_content_on_insert " + + " AFTER INSERT ON " + TABLE.DATA + + " WHEN new." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" + + " BEGIN" + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT + + " WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" + + " END"; + + /** + * 更新便签数据类型2 {@link DataConstants#NOTE} + */ + private static final String DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER = + "CREATE TRIGGER update_note_content_on_update " + + " AFTER UPDATE ON " + TABLE.DATA + + " WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" + + " BEGIN" + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT + + " WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" + + " END"; + + /** + * 更新便签数据类型3 {@link DataConstants#NOTE} + */ + private static final String DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER = + "CREATE TRIGGER update_note_content_on_delete " + + " AFTER delete ON " + TABLE.DATA + + " WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" + + " BEGIN" + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.SNIPPET + "=''" + + " WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" + + " END"; + + /** + * Delete datas belong to note which has been deleted + */ + private static final String NOTE_DELETE_DATA_ON_DELETE_TRIGGER = + "CREATE TRIGGER delete_data_on_delete " + + " AFTER DELETE ON " + TABLE.NOTE + + " BEGIN" + + " DELETE FROM " + TABLE.DATA + + " WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" + + " END"; + + /** + * Delete notes belong to folder which has been deleted + */ + private static final String FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER = + "CREATE TRIGGER folder_delete_notes_on_delete " + + " AFTER DELETE ON " + TABLE.NOTE + + " BEGIN" + + " DELETE FROM " + TABLE.NOTE + + " WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" + + " END"; + + /** + * Move notes belong to folder which has been moved to trash folder + */ + private static final String FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER = + "CREATE TRIGGER folder_move_notes_on_trash " + + " AFTER UPDATE ON " + TABLE.NOTE + + " WHEN new." + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER + + " BEGIN" + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER + + " WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" + + " END"; + + public NotesDatabaseHelper(Context context) { + super(context, DB_NAME, null, DB_VERSION); + } + + public void createNoteTable(SQLiteDatabase db) { + db.execSQL(CREATE_NOTE_TABLE_SQL); + reCreateNoteTableTriggers(db); + createSystemFolder(db); + Log.d(TAG, "note table has been created"); + } + + 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"); + db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_delete"); + db.execSQL("DROP TRIGGER IF EXISTS delete_data_on_delete"); + 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); + db.execSQL(NOTE_DELETE_DATA_ON_DELETE_TRIGGER); + 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); + } + + 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 + */ + values.clear(); + 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 + */ + values.clear(); + values.put(NoteColumns.ID, Notes.ID_TEMPARAY_FOLDER); + values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); + db.insert(TABLE.NOTE, null, values); + + /** + * create trash folder + */ + values.clear(); + values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER); + values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); + db.insert(TABLE.NOTE, null, values); + } + + 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"); + } + + 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); + } + + static synchronized NotesDatabaseHelper getInstance(Context context) { + if (mInstance == null) { + mInstance = new NotesDatabaseHelper(context); + } + return mInstance; + } + + @Override + public void onCreate(SQLiteDatabase db) { + createNoteTable(db); + createDataTable(db); + } + + @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"); + } + } + + 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); + } + + private void upgradeToV3(SQLiteDatabase db) { + // drop unused triggers + db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_insert"); + db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_delete"); + db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_update"); + // add a column for gtask id + db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.GTASK_ID + + " TEXT NOT NULL DEFAULT ''"); + // add a trash system folder + ContentValues values = new ContentValues(); + values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER); + values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); + db.insert(TABLE.NOTE, null, values); + } + + private void upgradeToV4(SQLiteDatabase db) { + db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION + + " INTEGER NOT NULL DEFAULT 0"); + } +} diff --git a/res/代码精读/data/NotesProvider.java b/res/代码精读/data/NotesProvider.java new file mode 100644 index 00000000..99eea24f --- /dev/null +++ b/res/代码精读/data/NotesProvider.java @@ -0,0 +1,289 @@ +package net.micode.notes.data; + + +import android.app.SearchManager; +import android.content.ContentProvider; +import android.content.ContentUris; +import android.content.ContentValues; +import android.content.Intent; +import android.content.UriMatcher; +import android.database.Cursor; +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; + + +public class NotesProvider extends ContentProvider { + 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 { + mMatcher = new UriMatcher(UriMatcher.NO_MATCH); + mMatcher.addURI(Notes.AUTHORITY, "note", URI_NOTE); + mMatcher.addURI(Notes.AUTHORITY, "note/#", URI_NOTE_ITEM); + mMatcher.addURI(Notes.AUTHORITY, "data", URI_DATA); + mMatcher.addURI(Notes.AUTHORITY, "data/#", URI_DATA_ITEM); + mMatcher.addURI(Notes.AUTHORITY, "search", URI_SEARCH); + 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. + */ + 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 + "," + + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_2 + "," + + 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; + + 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 + public boolean onCreate() { + mHelper = NotesDatabaseHelper.getInstance(getContext()); + return true; + } + + @Override + public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, + String sortOrder) { + Cursor c = null; + SQLiteDatabase db = mHelper.getReadableDatabase(); + String id = null; + switch (mMatcher.match(uri)) { + case URI_NOTE: + c = db.query(TABLE.NOTE, projection, selection, selectionArgs, null, null, + sortOrder); + break; + case URI_NOTE_ITEM: + id = uri.getPathSegments().get(1); + c = db.query(TABLE.NOTE, projection, NoteColumns.ID + "=" + id + + parseSelection(selection), selectionArgs, null, null, sortOrder); + break; + case URI_DATA: + c = db.query(TABLE.DATA, projection, selection, selectionArgs, null, null, + sortOrder); + break; + case URI_DATA_ITEM: + id = uri.getPathSegments().get(1); + c = db.query(TABLE.DATA, projection, DataColumns.ID + "=" + id + + parseSelection(selection), selectionArgs, null, null, sortOrder); + break; + case URI_SEARCH: + case URI_SEARCH_SUGGEST: + if (sortOrder != null || projection != null) { + 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) { + 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, + new String[] { searchString }); + } catch (IllegalStateException ex) { + Log.e(TAG, "got exception: " + ex.toString()); + } + break; + default: + throw new IllegalArgumentException("Unknown URI " + uri); + } + if (c != null) { + c.setNotificationUri(getContext().getContentResolver(), uri); + } + return c; + } + + @Override + public Uri insert(Uri uri, ContentValues values) { + SQLiteDatabase db = mHelper.getWritableDatabase(); + long dataId = 0, noteId = 0, insertedId = 0; + switch (mMatcher.match(uri)) { + case URI_NOTE: + insertedId = noteId = db.insert(TABLE.NOTE, null, values); + break; + case URI_DATA: + if (values.containsKey(DataColumns.NOTE_ID)) { + noteId = values.getAsLong(DataColumns.NOTE_ID); + } else { + Log.d(TAG, "Wrong data format without note id:" + values.toString()); + } + insertedId = dataId = db.insert(TABLE.DATA, null, values); + break; + default: + throw new IllegalArgumentException("Unknown URI " + uri); + } + // Notify the note uri + 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); + } + + return ContentUris.withAppendedId(uri, insertedId); + } + + @Override + public int delete(Uri uri, String selection, String[] selectionArgs) { + int count = 0; + String id = null; + SQLiteDatabase db = mHelper.getWritableDatabase(); + boolean deleteData = false; + switch (mMatcher.match(uri)) { + case URI_NOTE: + selection = "(" + selection + ") AND " + NoteColumns.ID + ">0 "; + count = db.delete(TABLE.NOTE, selection, selectionArgs); + break; + case URI_NOTE_ITEM: + id = uri.getPathSegments().get(1); + /** + * ID that smaller than 0 is system folder which is not allowed to + * trash + */ + long noteId = Long.valueOf(id); + if (noteId <= 0) { + break; + } + count = db.delete(TABLE.NOTE, + NoteColumns.ID + "=" + id + parseSelection(selection), selectionArgs); + break; + case URI_DATA: + count = db.delete(TABLE.DATA, selection, selectionArgs); + deleteData = true; + break; + case URI_DATA_ITEM: + id = uri.getPathSegments().get(1); + count = db.delete(TABLE.DATA, + DataColumns.ID + "=" + id + parseSelection(selection), selectionArgs); + deleteData = true; + break; + default: + throw new IllegalArgumentException("Unknown URI " + uri); + } + if (count > 0) { + if (deleteData) { + getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null); + } + getContext().getContentResolver().notifyChange(uri, null); + } + return count; + } + + @Override + public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) { + int count = 0; + String id = null; + SQLiteDatabase db = mHelper.getWritableDatabase(); + boolean updateData = false; + switch (mMatcher.match(uri)) { + case URI_NOTE: + increaseNoteVersion(-1, selection, selectionArgs); + count = db.update(TABLE.NOTE, values, selection, selectionArgs); + break; + case URI_NOTE_ITEM: + id = uri.getPathSegments().get(1); + increaseNoteVersion(Long.valueOf(id), selection, selectionArgs); + count = db.update(TABLE.NOTE, values, NoteColumns.ID + "=" + id + + parseSelection(selection), selectionArgs); + break; + case URI_DATA: + count = db.update(TABLE.DATA, values, selection, selectionArgs); + updateData = true; + break; + case URI_DATA_ITEM: + id = uri.getPathSegments().get(1); + count = db.update(TABLE.DATA, values, DataColumns.ID + "=" + id + + parseSelection(selection), selectionArgs); + updateData = true; + break; + default: + throw new IllegalArgumentException("Unknown URI " + uri); + } + + if (count > 0) { + if (updateData) { + getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null); + } + getContext().getContentResolver().notifyChange(uri, null); + } + return count; + } + + private String parseSelection(String selection) { + return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : ""); + } + + private void increaseNoteVersion(long id, String selection, String[] selectionArgs) { + StringBuilder sql = new StringBuilder(120); + sql.append("UPDATE "); + sql.append(TABLE.NOTE); + sql.append(" SET "); + sql.append(NoteColumns.VERSION); + sql.append("=" + NoteColumns.VERSION + "+1 "); + + if (id > 0 || !TextUtils.isEmpty(selection)) { + sql.append(" WHERE "); + } + if (id > 0) { + sql.append(NoteColumns.ID + "=" + String.valueOf(id)); + } + if (!TextUtils.isEmpty(selection)) { + String selectString = id > 0 ? parseSelection(selection) : selection; + for (String args : selectionArgs) { + selectString = selectString.replaceFirst("\\?", args); + } + sql.append(selectString); + } + + mHelper.getWritableDatabase().execSQL(sql.toString()); + } + + @Override + public String getType(Uri uri) { + // TODO Auto-generated method stub + return null; + } + +} diff --git a/res/代码精读/model/Note.java b/res/代码精读/model/Note.java new file mode 100644 index 00000000..bff2a8db --- /dev/null +++ b/res/代码精读/model/Note.java @@ -0,0 +1,281 @@ +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; + + +/* +这是一个Java类`Note`，它包含一个静态方法`getNewNoteId`。 + +`getNewNoteId`方法接受两个参数：一个`Context`对象和一个`long`类型的`folderId`。该方法的作用是为添加一个新笔记到数据库中创建一个新的笔记ID，并返回该ID。 + +具体来说，该方法创建一个`ContentValues`对象，用于指定新笔记的一些属性，例如创建时间、修改时间、类型、本地修改标志和父文件夹ID等。然后，该方法使用`ContentResolver.insert`方法将该笔记插入到数据库中，并返回一个`Uri`对象。 + +最后，该方法从`Uri`对象中提取笔记ID，并将其作为`long`类型返回。如果提取ID失败，则返回0。如果提取的ID为-1，则抛出一个`IllegalStateException`异常。 + +需要注意的是，该类中使用了一些未定义的变量和方法，例如`NoteColumns.CREATED_DATE`、`NoteColumns.MODIFIED_DATE`、`Notes.TYPE_NOTE`、`NoteColumns.LOCAL_MODIFIED`和`Notes.CONTENT_NOTE_URI`等。因此，无法确定该类的完整实现和调用方式。 +*/ + +public class Note { + private ContentValues mNoteDiffValues; + private NoteData mNoteData; + private static final String TAG = "Note"; + /** + * Create a new note id for adding a new note to databases + */ + public static synchronized long getNewNoteId(Context context, long folderId) { + // Create a new note in the database + ContentValues values = new ContentValues(); + long createdTime = System.currentTimeMillis(); + values.put(NoteColumns.CREATED_DATE, createdTime); + 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); + Uri uri = context.getContentResolver().insert(Notes.CONTENT_NOTE_URI, values); + + 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; + } + if (noteId == -1) { + throw new IllegalStateException("Wrong note id:" + noteId); + } + return noteId; + } + + public Note() { + mNoteDiffValues = new ContentValues(); + mNoteData = new NoteData(); + } + + public void setNoteValue(String key, String value) { + mNoteDiffValues.put(key, value); + mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); + mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); + } + + public void setTextData(String key, String value) { + mNoteData.setTextData(key, value); + } + + public void setTextDataId(long id) { + mNoteData.setTextDataId(id); + } + + public long getTextDataId() { + return mNoteData.mTextDataId; + } + + public void setCallDataId(long id) { + mNoteData.setCallDataId(id); + } + + public void setCallData(String key, String value) { + mNoteData.setCallData(key, value); + } + + public boolean isLocalModified() { + return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified(); + } + + 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 + * note data info + */ + if (context.getContentResolver().update( + ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), mNoteDiffValues, null, + null) == 0) { + Log.e(TAG, "Update note error, should not happen"); + // Do not return, fall through + } + mNoteDiffValues.clear(); + + if (mNoteData.isLocalModified() + && (mNoteData.pushIntoContentResolver(context, noteId) == null)) { + return false; + } + + return true; + } + + /* + 这是一个Java类`Note`中的一个内部类`NoteData`，它包含一些成员变量和方法，用于处理笔记的文本数据和通话数据。 + +具体来说，`NoteData`类包含以下成员变量： + +- `mTextDataId`：文本数据的ID。 +- `mTextDataValues`：文本数据的`ContentValues`对象。 +- `mCallDataId`：通话数据的ID。 +- `mCallDataValues`：通话数据的`ContentValues`对象。 + +`NoteData`类包含以下方法： + +- `isLocalModified`：检查笔记的文本数据和通话数据是否已被修改。 +- `setTextDataId`：设置文本数据的ID。 +- `setCallDataId`：设置通话数据的ID。 +- `setCallData`：设置通话数据的键值对。 +- `setTextData`：设置文本数据的键值对。 +- `pushIntoContentResolver`：将笔记的文本数据和通话数据插入到数据库中，并返回插入操作的结果。 + +具体来说，`isLocalModified`方法检查文本数据和通话数据的`ContentValues`对象是否包含任何键值对。如果是，则说明数据已被修改，返回`true`，否则返回`false`。 + +`setTextDataId`和`setCallDataId`方法分别设置文本数据和通话数据的ID。如果指定的ID小于等于0，则抛出`IllegalArgumentException`异常。 + +`setCallData`和`setTextData`方法分别设置通话数据和文本数据的键值对。这些键值对将被添加到对应的`ContentValues`对象中，并将笔记的`LOCAL_MODIFIED`和`MODIFIED_DATE`属性设置为1和当前时间戳。 + +`pushIntoContentResolver`方法将笔记的文本数据和通话数据插入到数据库中，并返回插入操作的结果。该方法首先检查笔记的ID是否大于0，如果不是，则抛出`IllegalArgumentException`异常。 + +然后，该方法创建一个`ArrayList`对象，用于存储插入或更新操作。如果文本数据或通话数据的`ContentValues`对象包含任何键值对，则该方法将其添加到对应的插入或更新操作中。 + +最后，该方法使用`ContentResolver.applyBatch`方法将所有操作应用到数据库中，并返回插入操作的结果。如果操作失败，则返回`null`。 +*/ + + private class NoteData { + private long mTextDataId; + + private ContentValues mTextDataValues; + + private long mCallDataId; + + private ContentValues mCallDataValues; + + private static final String TAG = "NoteData"; + + public NoteData() { + mTextDataValues = new ContentValues(); + mCallDataValues = new ContentValues(); + mTextDataId = 0; + mCallDataId = 0; + } + + 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()); + } + + Uri pushIntoContentResolver(Context context, long noteId) { + /** + * Check for safety + */ + if (noteId <= 0) { + throw new IllegalArgumentException("Wrong note id:" + noteId); + } + + ArrayList operationList = new ArrayList(); + ContentProviderOperation.Builder builder = null; + + if(mTextDataValues.size() > 0) { + mTextDataValues.put(DataColumns.NOTE_ID, noteId); + if (mTextDataId == 0) { + mTextDataValues.put(DataColumns.MIME_TYPE, TextNote.CONTENT_ITEM_TYPE); + Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI, + mTextDataValues); + try { + setTextDataId(Long.valueOf(uri.getPathSegments().get(1))); + } catch (NumberFormatException e) { + Log.e(TAG, "Insert new text data fail with noteId" + noteId); + mTextDataValues.clear(); + return null; + } + } else { + builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId( + Notes.CONTENT_DATA_URI, mTextDataId)); + builder.withValues(mTextDataValues); + operationList.add(builder.build()); + } + mTextDataValues.clear(); + } + + if(mCallDataValues.size() > 0) { + mCallDataValues.put(DataColumns.NOTE_ID, noteId); + if (mCallDataId == 0) { + mCallDataValues.put(DataColumns.MIME_TYPE, CallNote.CONTENT_ITEM_TYPE); + Uri uri = context.getContentResolver().insert(Notes.CONTENT_DATA_URI, + mCallDataValues); + try { + setCallDataId(Long.valueOf(uri.getPathSegments().get(1))); + } catch (NumberFormatException e) { + Log.e(TAG, "Insert new call data fail with noteId" + noteId); + mCallDataValues.clear(); + return null; + } + } else { + builder = ContentProviderOperation.newUpdate(ContentUris.withAppendedId( + Notes.CONTENT_DATA_URI, mCallDataId)); + builder.withValues(mCallDataValues); + operationList.add(builder.build()); + } + mCallDataValues.clear(); + } + + if (operationList.size() > 0) { + try { + ContentProviderResult[] results = context.getContentResolver().applyBatch( + Notes.AUTHORITY, operationList); + return (results == null || results.length == 0 || results[0] == null) ? null + : ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId); + } catch (RemoteException e) { + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + return null; + } catch (OperationApplicationException e) { + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + return null; + } + } + return null; + } + } +} diff --git a/res/代码精读/model/WorkingNote.java b/res/代码精读/model/WorkingNote.java new file mode 100644 index 00000000..d0bc3a53 --- /dev/null +++ b/res/代码精读/model/WorkingNote.java @@ -0,0 +1,381 @@ + +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; + // Note Id + private long mNoteId; + // Note content + 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; + + public static final String[] DATA_PROJECTION = new String[] { + DataColumns.ID, + DataColumns.CONTENT, + DataColumns.MIME_TYPE, + DataColumns.DATA1, + DataColumns.DATA2, + DataColumns.DATA3, + DataColumns.DATA4, + }; + + public static final String[] NOTE_PROJECTION = new String[] { + NoteColumns.PARENT_ID, + NoteColumns.ALERTED_DATE, + NoteColumns.BG_COLOR_ID, + NoteColumns.WIDGET_ID, + 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; +/* +这是一个Java类`Note`中的一个方法`loadNoteData`，它用于从数据库中加载笔记的数据。 + +具体来说，`loadNoteData`方法使用`ContentResolver.query`方法查询笔记的数据，并使用`DataColumns.NOTE_ID`作为查询条件。如果查询结果不为空，则该方法遍历所有结果行，并根据数据的MIME类型分别设置笔记的文本数据或通话数据。 + +如果数据的MIME类型为`DataConstants.NOTE`，则该方法获取数据的内容、模式和ID，并将其分别设置为笔记的文本数据、模式和文本数据的ID。 + +如果数据的MIME类型为`DataConstants.CALL_NOTE`，则该方法获取数据的ID，并将其设置为笔记的通话数据的ID。 + +如果数据的MIME类型不是笔记或通话数据，则该方法记录错误日志。 + +如果查询结果为空，则该方法抛出`IllegalArgumentException`异常。 + +需要注意的是，该类中使用了一些未定义的变量和方法，例如`Notes.CONTENT_DATA_URI`、`DataColumns.NOTE_ID`、`DataConstants.NOTE`、`DataConstants.CALL_NOTE`、`DATA_PROJECTION`、`DATA_MIME_TYPE_COLUMN`、`DATA_CONTENT_COLUMN`、`DATA_MODE_COLUMN`和`DATA_ID_COLUMN`等。因此，无法确定该类的完整实现和调用方式。 +*/ + // New note construct + private WorkingNote(Context context, long folderId) { + mContext = context; + mAlertDate = 0; + mModifiedDate = System.currentTimeMillis(); + mFolderId = folderId; + mNote = new Note(); + mNoteId = 0; + mIsDeleted = false; + mMode = 0; + mWidgetType = Notes.TYPE_WIDGET_INVALIDE; + } + + // Existing note construct + private WorkingNote(Context context, long noteId, long folderId) { + mContext = context; + mNoteId = noteId; + mFolderId = folderId; + mIsDeleted = false; + mNote = new Note(); + loadNote(); + } + + private void loadNote() { + Cursor cursor = mContext.getContentResolver().query( + ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null, + null, null); + + if (cursor != null) { + if (cursor.moveToFirst()) { + mFolderId = cursor.getLong(NOTE_PARENT_ID_COLUMN); + mBgColorId = cursor.getInt(NOTE_BG_COLOR_ID_COLUMN); + mWidgetId = cursor.getInt(NOTE_WIDGET_ID_COLUMN); + mWidgetType = cursor.getInt(NOTE_WIDGET_TYPE_COLUMN); + mAlertDate = cursor.getLong(NOTE_ALERTED_DATE_COLUMN); + mModifiedDate = cursor.getLong(NOTE_MODIFIED_DATE_COLUMN); + } + cursor.close(); + } else { + Log.e(TAG, "No note with id:" + mNoteId); + throw new IllegalArgumentException("Unable to find note with id " + mNoteId); + } + loadNoteData(); + } + +/* +这是一个Java类`Note`中的一个方法`loadNoteData`，它用于从数据库中加载笔记的数据。 + +具体来说，`loadNoteData`方法使用`ContentResolver.query`方法查询笔记的数据，并使用`DataColumns.NOTE_ID`作为查询条件。如果查询结果不为空，则该方法遍历所有结果行，并根据数据的MIME类型分别设置笔记的文本数据或通话数据。 + +如果数据的MIME类型为`DataConstants.NOTE`，则该方法获取数据的内容、模式和ID，并将其分别设置为笔记的文本数据、模式和文本数据的ID。 + +如果数据的MIME类型为`DataConstants.CALL_NOTE`，则该方法获取数据的ID，并将其设置为笔记的通话数据的ID。 + +如果数据的MIME类型不是笔记或通话数据，则该方法记录错误日志。 + +如果查询结果为空，则该方法抛出`IllegalArgumentException`异常。 + +*/ + 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()) { + do { + String type = cursor.getString(DATA_MIME_TYPE_COLUMN); + if (DataConstants.NOTE.equals(type)) { + mContent = cursor.getString(DATA_CONTENT_COLUMN); + mMode = cursor.getInt(DATA_MODE_COLUMN); + mNote.setTextDataId(cursor.getLong(DATA_ID_COLUMN)); + } else if (DataConstants.CALL_NOTE.equals(type)) { + mNote.setCallDataId(cursor.getLong(DATA_ID_COLUMN)); + } else { + Log.d(TAG, "Wrong note type with type:" + type); + } + } while (cursor.moveToNext()); + } + cursor.close(); + } else { + Log.e(TAG, "No data with id:" + mNoteId); + throw new IllegalArgumentException("Unable to find note's data with id " + mNoteId); + } + } + + public static WorkingNote createEmptyNote(Context context, long folderId, int widgetId, + int widgetType, int defaultBgColorId) { + WorkingNote note = new WorkingNote(context, folderId); + 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); + } + + public synchronized boolean saveNote() { + if (isWorthSaving()) { + if (!existInDatabase()) { + 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 + */ + if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID + && mWidgetType != Notes.TYPE_WIDGET_INVALIDE + && mNoteSettingStatusListener != null) { + mNoteSettingStatusListener.onWidgetChanged(); + } + return true; + } else { + return false; + } + } + + public boolean existInDatabase() { + return mNoteId > 0; + } + + private boolean isWorthSaving() { + if (mIsDeleted || (!existInDatabase() && TextUtils.isEmpty(mContent)) + || (existInDatabase() && !mNote.isLocalModified())) { + return false; + } else { + return true; + } + } + + public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) { + mNoteSettingStatusListener = l; + } + + public void setAlertDate(long date, boolean set) { + if (date != mAlertDate) { + mAlertDate = date; + mNote.setNoteValue(NoteColumns.ALERTED_DATE, String.valueOf(mAlertDate)); + } + if (mNoteSettingStatusListener != null) { + mNoteSettingStatusListener.onClockAlertChanged(date, set); + } + } + + public void markDeleted(boolean mark) { + mIsDeleted = mark; + if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID + && mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mNoteSettingStatusListener != null) { + mNoteSettingStatusListener.onWidgetChanged(); + } + } + + public void setBgColorId(int id) { + if (id != mBgColorId) { + mBgColorId = id; + if (mNoteSettingStatusListener != null) { + mNoteSettingStatusListener.onBackgroundColorChanged(); + } + mNote.setNoteValue(NoteColumns.BG_COLOR_ID, String.valueOf(id)); + } + } + + public void setCheckListMode(int mode) { + if (mMode != mode) { + if (mNoteSettingStatusListener != null) { + mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode); + } + mMode = mode; + mNote.setTextData(TextNote.MODE, String.valueOf(mMode)); + } + } + + public void setWidgetType(int type) { + if (type != mWidgetType) { + mWidgetType = type; + mNote.setNoteValue(NoteColumns.WIDGET_TYPE, String.valueOf(mWidgetType)); + } + } + + public void setWidgetId(int id) { + if (id != mWidgetId) { + mWidgetId = id; + mNote.setNoteValue(NoteColumns.WIDGET_ID, String.valueOf(mWidgetId)); + } + } + + public void setWorkingText(String text) { + if (!TextUtils.equals(mContent, text)) { + mContent = text; + mNote.setTextData(DataColumns.CONTENT, mContent); + } + } + + 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)); + } + + public boolean hasClockAlert() { + return (mAlertDate > 0 ? true : false); + } + + public String getContent() { + return mContent; + } + + public long getAlertDate() { + return mAlertDate; + } + + public long getModifiedDate() { + return mModifiedDate; + } + + public int getBgColorResId() { + return NoteBgResources.getNoteBgResource(mBgColorId); + } + + public int getBgColorId() { + return mBgColorId; + } + + public int getTitleBgResId() { + return NoteBgResources.getNoteTitleBgResource(mBgColorId); + } + + public int getCheckListMode() { + return mMode; + } + + public long getNoteId() { + return mNoteId; + } + + public long getFolderId() { + return mFolderId; + } + + public int getWidgetId() { + return mWidgetId; + } + + public int getWidgetType() { + return mWidgetType; + } + + 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 + * @param newMode is new mode + */ + void onCheckListModeChanged(int oldMode, int newMode); + } +} diff --git a/res/代码精读/res/values-zh-rCN/arrays.xml b/res/代码精读/res/values-zh-rCN/arrays.xml new file mode 100644 index 00000000..07bd5463 --- /dev/null +++ b/res/代码精读/res/values-zh-rCN/arrays.xml @@ -0,0 +1,8 @@ + + + + + 短信 + 邮件 + + diff --git a/res/代码精读/res/values-zh-rCN/strings.xml b/res/代码精读/res/values-zh-rCN/strings.xml new file mode 100644 index 00000000..48ea2d35 --- /dev/null +++ b/res/代码精读/res/values-zh-rCN/strings.xml @@ -0,0 +1,112 @@ + + + + + 便签 + 便签2x2 + 便签4x4 + 没有关联内容，点击新建便签。 + 访客模式下，便签内容不可见 + ... + 新建便签 + 成功删除提醒 + 创建提醒 + 已过期 + yyyyMMdd + MM月dd日 kk:mm + 知道了 + 查看 + 呼叫电话 + 发送邮件 + 浏览网页 + 打开地图 + + 新建文件夹 + 导出文本 + 同步 + 取消同步 + 设置 + 搜索 + 删除 + 移动到文件夹 + 选中了 %d 项 + 没有选中项，操作无效 + 全选 + 取消全选 + 文字大小 + 小 + 正常 + 大 + 超大 + 进入清单模式 + 退出清单模式 + 查看文件夹 + 刪除文件夹 + 修改文件夹名称 + 文件夹 %1$s 已存在，请重新命名 + 分享 + 发送到桌面 + 提醒我 + 删除提醒 + 选择文件夹 + 上一级文件夹 + 已添加到桌面 + 删除 + 确认要删除所选的 %d 条便签吗? + 确认要删除该条便签吗? + 确认删除文件夹及所包含的便签吗？ + 已将所选 %1$d 条便签移到 %2$s 文件夹 + + SD卡被占用，不能操作 + 导出文本时发生错误，请检查SD卡 + 要查看的便签不存在 + 不能为空便签设置闹钟提醒 + 不能将空便签发送到桌面 + 导出成功 + 导出失败 + 已将文本文件(%1$s)输出至SD卡(%2$s)目录 + + 同步便签... + 同步成功 + 同步失败 + 同步已取消 + 与%1$s同步成功 + 同步失败，请检查网络和帐号设置 + 同步失败，发生内部错误 + 同步已取消 + 登录%1$s... + 正在获取服务器便签列表... + 正在同步本地便签... + + 设置 + 同步账号 + 与google task同步便签记录 + 上次同步于 %1$s + 添加账号 + 更换账号 + 删除账号 + 取消 + 立即同步 + 取消同步 + 当前帐号 %1$s + 如更换同步帐号，过去的帐号同步信息将被清空，再次切换的同时可能会造成数据重复 + 同步便签 + 请选择google帐号，便签将与该帐号的google task内容同步。 + 正在同步中，不能修改同步帐号 + 同步帐号已设置为%1$s + 新建便签背景颜色随机 + 删除 + 通话便签 + 请输入名称 + 正在搜索便签 + 搜索便签 + 便签中的文字 + 便签 + 设置 + 取消 + + %1$s 条符合“%2$s”的搜索结果 + + + diff --git a/res/代码精读/res/values-zh-rTW/arrays.xml b/res/代码精读/res/values-zh-rTW/arrays.xml new file mode 100644 index 00000000..07bd5463 --- /dev/null +++ b/res/代码精读/res/values-zh-rTW/arrays.xml @@ -0,0 +1,8 @@ + + + + + 短信 + 邮件 + + diff --git a/res/代码精读/res/values-zh-rTW/strings.xml b/res/代码精读/res/values-zh-rTW/strings.xml new file mode 100644 index 00000000..72940e63 --- /dev/null +++ b/res/代码精读/res/values-zh-rTW/strings.xml @@ -0,0 +1,112 @@ + + + + + 便签 + 便签2x2 + 便签4x4 + 没有关联内容，点击新建便签。 + 访客模式下，便签内容不可见 + ... + 新建便签 + 成功删除提醒 + 创建提醒 + 已过期 + yyyyMMdd + MM月dd日 kk:mm + 知道了 + 查看 + 呼叫电话 + 发送邮件 + 浏览网页 + 打开地图 + + 新建文件夹 + 导出文本 + 同步 + 取消同步 + 设置 + 搜索 + 删除 + 移动到文件夹 + 选中了 %d 项 + 没有选中项，操作无效 + 全选 + 取消全选 + 文字大小 + 小 + 正常 + 大 + 超大 + 进入清单模式 + 退出清单模式 + 查看文件夹 + 刪除文件夹 + 修改文件夹名称 + 文件夹 %1$s 已存在，请重新命名 + 分享 + 发送到桌面 + 提醒我 + 删除提醒 + 选择文件夹 + 上一级文件夹 + 已添加到桌面 + 删除 + 确认要删除所选的 %d 条便签吗? + 确认要删除该条便签吗? + 确认删除文件夹及所包含的便签吗？ + 已将所选 %1$d 条便签移到 %2$s 文件夹 + + SD卡被占用，不能操作 + 导出文本时发生错误，请检查SD卡 + 要查看的便签不存在 + 不能为空便签设置闹钟提醒 + 不能将空便签发送到桌面 + 导出成功 + 导出失败 + 已将文本文件(%1$s)输出至SD卡(%2$s)目录 + + 同步便签... + 同步成功 + 同步失败 + 同步已取消 + 与%1$s同步成功 + 同步失败，请检查网络和帐号设置 + 同步失败，发生内部错误 + 同步已取消 + 登录%1$s... + 正在获取服务器便签列表... + 正在同步本地便签... + + 设置 + 同步账号 + 与google task同步便签记录 + 上次同步于 %1$s + 添加账号 + 更换账号 + 删除账号 + 取消 + 立即同步 + 取消同步 + 当前帐号 %1$s + 如更换同步帐号，过去的帐号同步信息将被清空，再次切换的同时可能会造成数据重复 + 同步便签 + 请选择google帐号，便签将与该帐号的google task内容同步。 + 正在同步中，不能修改同步帐号 + 同步帐号已设置为%1$s + 新建便签背景颜色随机 + 删除 + 通话便签 + 请输入名称 + 正在搜索便签 + 搜索便签 + 便签中的文字 + 便签 + 设置 + 取消 + + %1$s 条符合“%2$s”的搜索结果 + + + diff --git a/res/代码精读/res/values/arrays.xml b/res/代码精读/res/values/arrays.xml new file mode 100644 index 00000000..3f6963fa --- /dev/null +++ b/res/代码精读/res/values/arrays.xml @@ -0,0 +1,16 @@ + + + + + -%s + --%s + --%s + --%s + + + + + Messaging + Email + + diff --git a/res/代码精读/res/values/colors.xml b/res/代码精读/res/values/colors.xml new file mode 100644 index 00000000..91d8b8ca --- /dev/null +++ b/res/代码精读/res/values/colors.xml @@ -0,0 +1,5 @@ + + + + #335b5b5b + diff --git a/res/代码精读/res/values/dimens.xml b/res/代码精读/res/values/dimens.xml new file mode 100644 index 00000000..b3b6b1f5 --- /dev/null +++ b/res/代码精读/res/values/dimens.xml @@ -0,0 +1,9 @@ + + + + 33sp + 26sp + 20sp + 17sp + 14sp + \ No newline at end of file diff --git a/res/代码精读/res/values/strings.xml b/res/代码精读/res/values/strings.xml new file mode 100644 index 00000000..ab056029 --- /dev/null +++ b/res/代码精读/res/values/strings.xml @@ -0,0 +1,135 @@ + + + + Notes + + + Notes 2x2 + Notes 4x4 + + + No associated note found, click to create associated note. + Privacy mode，can not see note content + + ... + + + Add note + Delete reminder successfully + Set reminder + Expired + yyyyMMdd + MMMd kk:mm + Got it + Take a look + Call + Send email + Browse web + Open map + + + /MIUI/notes/ + notes_%s.txt + + + (%d) + New Folder + Export text + Sync + Cancel syncing + Settings + Search + Delete + Move to folder + %d selected + Nothing selected, the operation is invalid + Select all + Deselect all + Font size + Small + Medium + Large + Super + Enter check list + Leave check list + View folder + Delete folder + Change folder name + The folder %1$s exist, please rename + Share + Send to home + Remind me + Delete reminder + Select folder + Parent folder + Note added to home + + + Confirm to delete folder and its notes? + Delete selected notes + Confirm to delete the selected %d notes? + Confirm to delete this note? + Have moved selected %1$d notes to %2$s folder + + + SD card busy, not available now + Export failed, please check SD card + The note is not exist + Sorry, can not set clock on empty note + Sorry, can not send and empty note to home + Export successful + Export fail + Export text file (%1$s) to SD (%2$s) directory + + + Syncing notes... + Sync is successful + Sync is failed + Sync is canceled + Sync is successful with account %1$s + Sync failed, please check network and account settings + Sync failed, internal error occurs + Sync is canceled + Logging into %1$s... + Getting remote note list... + Synchronize local notes with Google Task... + + + Settings + Sync account + Sync notes with google task + Last sync time %1$s + yyyy-MM-dd hh:mm:ss + Add account + Change sync account + Remove sync account + Cancel + Sync immediately + Cancel syncing + Current account %1$s + All sync related information will be deleted, which may result in duplicated items sometime + Sync notes + Please select a google account. Local notes will be synced with google task. + Cannot change the account because sync is in progress + %1$s has been set as the sync account + New note background color random + + Delete + Call notes + Input name + + + Searching Notes + Search notes + Text in your notes + Notes + set + cancel + + %1$s result for \"%2$s\" + + %1$s results for \"%2$s\" + + + diff --git a/res/代码精读/res/values/styles.xml b/res/代码精读/res/values/styles.xml new file mode 100644 index 00000000..eb803fa7 --- /dev/null +++ b/res/代码精读/res/values/styles.xml @@ -0,0 +1,65 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/res/代码精读/res/xml/preferences.xml b/res/代码精读/res/xml/preferences.xml new file mode 100644 index 00000000..9940aedc --- /dev/null +++ b/res/代码精读/res/xml/preferences.xml @@ -0,0 +1,17 @@ + + + + + + + + + + + + + + diff --git a/res/代码精读/res/xml/searchable.xml b/res/代码精读/res/xml/searchable.xml new file mode 100644 index 00000000..93a52de5 --- /dev/null +++ b/res/代码精读/res/xml/searchable.xml @@ -0,0 +1,12 @@ + + + + android:hint="@string/search_hint" + android:searchMode="queryRewriteFromText" + + android:searchSuggestAuthority="notes" + android:searchSuggestIntentAction="android.intent.action.VIEW" + android:searchSettingsDescription="@string/search_setting_description" + android:includeInGlobalSearch="true" /> diff --git a/res/代码精读/res/xml/widget_2x_info.xml b/res/代码精读/res/xml/widget_2x_info.xml new file mode 100755 index 00000000..dc02caf5 --- /dev/null +++ b/res/代码精读/res/xml/widget_2x_info.xml @@ -0,0 +1,11 @@ + + + + diff --git a/res/代码精读/res/xml/widget_4x_info.xml b/res/代码精读/res/xml/widget_4x_info.xml new file mode 100755 index 00000000..0bcd7265 --- /dev/null +++ b/res/代码精读/res/xml/widget_4x_info.xml @@ -0,0 +1,13 @@ + + + + + + diff --git a/res/代码精读/tool/BackupUtils.java b/res/代码精读/tool/BackupUtils.java new file mode 100644 index 00000000..eea7d02c --- /dev/null +++ b/res/代码精读/tool/BackupUtils.java @@ -0,0 +1,372 @@ +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; + +/* +这是一个Java类，名为`BackupUtils`，它包含一个静态方法`getInstance`，用于获取该类的单例实例。 + +该方法接受一个`Context`参数，并返回一个`BackupUtils`对象的实例。如果该类的单例实例已经存在，则直接返回该实例，否则创建一个新的实例并返回。 + +该类的作用是为了在应用程序中提供一种备份数据的方法。 +*/ + +public class BackupUtils { + private static final String TAG = "BackupUtils"; + // Singleton stuff + private static BackupUtils sInstance; + + public static synchronized BackupUtils getInstance(Context context) { + if (sInstance == null) { + 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 + public static final int STATE_BACKUP_FILE_NOT_EXIST = 1; + // The data is not well formated, may be changed by other programs + public static final int STATE_DATA_DESTROIED = 2; + // Some run-time exception which causes restore or backup fails + public static final int STATE_SYSTEM_ERROR = 3; + // Backup or restore success + public static final int STATE_SUCCESS = 4; + + private TextExport mTextExport; + + private BackupUtils(Context context) { + mTextExport = new TextExport(context); + } + + private static boolean externalStorageAvailable() { + 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; + } + +/* +这是一个Java类`TextExport`的静态内部类，其中定义了两个静态成员变量`NOTE_PROJECTION`和`DATA_PROJECTION`，它们分别是长度为4和长度为6的字符串数组。 + +`NOTE_PROJECTION`数组定义了用于查询笔记的列名。它包含笔记的ID、修改日期、片段和类型等信息。`DATA_PROJECTION`数组定义了用于查询数据的列名。它包含数据的内容、MIME类型和其他数据信息。 + +此外，该类还定义了4个静态常量`NOTE_COLUMN_ID`、`NOTE_COLUMN_MODIFIED_DATE`、`NOTE_COLUMN_SNIPPET`和`NOTE_COLUMN_TYPE`，它们分别表示`NOTE_PROJECTION`数组的索引位置。这些常量可能用于在查询结果中访问相应的列。 + +这个类用于导出文本数据，并将其保存到某个文件或数据库中。 +*/ + private static class TextExport { + private static final String[] NOTE_PROJECTION = { + NoteColumns.ID, + NoteColumns.MODIFIED_DATE, + 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, + DataColumns.DATA1, + DataColumns.DATA2, + 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 = ""; + mFileDirectory = ""; + } + + private String getFormat(int id) { + return TEXT_FORMAT[id]; + } + + /** + * Export the folder identified by folder id to text + */ + + 这是一个Java类中的一个方法，名为`exportFolderToText`，它接受两个参数：一个字符串类型的`folderId`和一个`PrintStream`类型的`ps`。 + +/* +该方法的作用是将指定文件夹中的笔记导出到文本格式，并将结果输出到`PrintStream`对象中。它首先使用`ContentResolver`对象查询属于该文件夹的笔记，然后遍历查询结果，并为每个笔记输出最后修改日期和笔记内容。 + +具体来说，该方法使用`Notes.CONTENT_NOTE_URI`查询指定文件夹中的笔记，并使用`NOTE_PROJECTION`数组指定要查询的列。然后，它使用`NoteColumns.PARENT_ID`作为查询条件，该条件指定了笔记所属的文件夹。如果查询结果不为空，该方法遍历结果集并为每个笔记调用`exportNoteToText`方法，该方法将笔记的详细信息输出到`PrintStream`对象中。 +*/ + + private void exportFolderToText(String folderId, PrintStream ps) { + // Query notes belong to this folder + Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI, + NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] { + folderId + }, null); + + if (notesCursor != null) { + if (notesCursor.moveToFirst()) { + do { + // Print note's last modified date + 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); + } while (notesCursor.moveToNext()); + } + notesCursor.close(); + } + } + + /** + * Export note identified by id to a print stream + */ + +/* +这是一个Java类中的一个方法，名为`exportNoteToText`，它接受两个参数：一个字符串类型的`noteId`和一个`PrintStream`类型的`ps`。 + +该方法的作用是将指定笔记导出到文本格式，并将结果输出到`PrintStream`对象中。它首先使用`ContentResolver`对象查询属于该笔记的数据，然后遍历查询结果，并为每个数据输出相应的内容。 + +具体来说，该方法使用`Notes.CONTENT_DATA_URI`查询指定笔记的数据，并使用`DATA_PROJECTION`数组指定要查询的列。然后，它使用`DataColumns.NOTE_ID`作为查询条件，该条件指定了数据所属的笔记。如果查询结果不为空，该方法遍历结果集并为每个数据输出相应的内容。 + +该方法支持两种类型的数据：一种是`DataConstants.CALL_NOTE`类型的数据，它包含电话号码、通话日期和通话附件位置等信息；另一种是`DataConstants.NOTE`类型的数据，它仅包含笔记内容。 +*/ + + 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.moveToFirst()) { + do { + String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE); + if (DataConstants.CALL_NOTE.equals(mimeType)) { + // Print phone number + 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)) { + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), + phoneNumber)); + } + // Print call date + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), DateFormat + .format(mContext.getString(R.string.format_datetime_mdhm), + callDate))); + // Print call attachment location + if (!TextUtils.isEmpty(location)) { + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), + location)); + } + } else if (DataConstants.NOTE.equals(mimeType)) { + String content = dataCursor.getString(DATA_COLUMN_CONTENT); + if (!TextUtils.isEmpty(content)) { + ps.println(String.format(getFormat(FORMAT_NOTE_CONTENT), + content)); + } + } + } while (dataCursor.moveToNext()); + } + dataCursor.close(); + } + // print a line separator between note + try { + ps.write(new byte[] { + Character.LINE_SEPARATOR, Character.LETTER_NUMBER + }); + } catch (IOException e) { + Log.e(TAG, e.toString()); + } + } + + /** + * Note will be exported as text which is user readable + */ + public int exportToText() { + 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 + 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 { + // Print folder's name + String folderName = ""; + if(folderCursor.getLong(NOTE_COLUMN_ID) == Notes.ID_CALL_RECORD_FOLDER) { + folderName = mContext.getString(R.string.call_record_folder_name); + } else { + folderName = folderCursor.getString(NOTE_COLUMN_SNIPPET); + } + if (!TextUtils.isEmpty(folderName)) { + ps.println(String.format(getFormat(FORMAT_FOLDER_NAME), folderName)); + } + String folderId = folderCursor.getString(NOTE_COLUMN_ID); + exportFolderToText(folderId, ps); + } while (folderCursor.moveToNext()); + } + folderCursor.close(); + } + + // Export notes in root's folder + 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 { + ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( + mContext.getString(R.string.format_datetime_mdhm), + noteCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); + // Query data belong to this note + String noteId = noteCursor.getString(NOTE_COLUMN_ID); + exportNoteToText(noteId, ps); + } while (noteCursor.moveToNext()); + } + noteCursor.close(); + } + ps.close(); + + return STATE_SUCCESS; + } + + /** + * Get a print stream pointed to the file {@generateExportedTextFile} + */ +/*这是一个Java类中的一个私有方法，名为`getExportToTextPrintStream`，它返回一个`PrintStream`对象。 + +该方法的作用是创建一个用于导出文本数据的文件，并返回一个`PrintStream`对象，以便将导出的数据输出到该文件中。 + +具体来说，该方法首先调用`generateFileMountedOnSDcard`方法创建一个文件对象，该方法使用`Context`对象、文件路径和文件名等参数生成一个文件对象，并将该文件保存在SD卡上。如果文件创建失败，则返回`null`。 + +然后，该方法使用`FileOutputStream`对象创建一个输出流，并将其传递给`PrintStream`对象。最后，该方法返回该`PrintStream`对象，以便将导出的数据输出到该文件中。 +*/ + private PrintStream getExportToTextPrintStream() { + File file = generateFileMountedOnSDcard(mContext, R.string.file_path, + R.string.file_name_txt_format); + if (file == null) { + Log.e(TAG, "create file to exported failed"); + return null; + } + mFileName = file.getName(); + mFileDirectory = mContext.getString(R.string.file_path); + PrintStream ps = null; + try { + FileOutputStream fos = new FileOutputStream(file); + ps = new PrintStream(fos); + } catch (FileNotFoundException e) { + e.printStackTrace(); + return null; + } catch (NullPointerException e) { + e.printStackTrace(); + return null; + } + 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(context.getString( + fileNameFormatResId, + DateFormat.format(context.getString(R.string.format_date_ymd), + System.currentTimeMillis()))); + File file = new File(sb.toString()); + + try { + if (!filedir.exists()) { + filedir.mkdir(); + } + if (!file.exists()) { + file.createNewFile(); + } + return file; + } catch (SecurityException e) { + e.printStackTrace(); + } catch (IOException e) { + e.printStackTrace(); + } + + return null; + } +} + + diff --git a/res/代码精读/tool/DataUtils.java b/res/代码精读/tool/DataUtils.java new file mode 100644 index 00000000..36f1dd3e --- /dev/null +++ b/res/代码精读/tool/DataUtils.java @@ -0,0 +1,329 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +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; + + +/* +这是一个Java类`DataUtils`，它包含两个静态方法`batchDeleteNotes`和`moveNoteToFoler`。 + +`batchDeleteNotes`方法接受两个参数：一个`ContentResolver`对象和一个`HashSet`对象。该方法的作用是批量删除指定ID的笔记，并返回一个布尔值，指示删除操作是否成功。 + +具体来说，该方法首先检查输入参数`ids`是否为空或包含零个元素。如果是，则返回`true`。否则，该方法遍历`ids`集合，并创建一个`ContentProviderOperation`对象，用于删除指定ID的笔记。然后，该方法将该操作添加到`operationList`列表中，并使用`resolver.applyBatch`方法执行所有操作。如果操作成功，则返回`true`，否则返回`false`。 + +`moveNoteToFoler`方法接受三个参数：一个`ContentResolver`对象、一个`long`类型的`id`和两个`long`类型的`srcFolderId`和`desFolderId`。该方法的作用是将指定ID的笔记从一个文件夹移动到另一个文件夹。 + +具体来说，该方法创建一个`ContentValues`对象，用于指定笔记的新父文件夹ID和原始父文件夹ID。然后，该方法使用`resolver.update`方法更新指定ID的笔记，并将其移动到新的文件夹中。 +*/ + +public class DataUtils { + public static final String TAG = "DataUtils"; + public static boolean batchDeleteNotes(ContentResolver resolver, HashSet ids) { + if (ids == null) { + Log.d(TAG, "the ids is null"); + return true; + } + if (ids.size() == 0) { + Log.d(TAG, "no id is in the hashset"); + return true; + } + + ArrayList operationList = new ArrayList(); + for (long id : ids) { + if(id == Notes.ID_ROOT_FOLDER) { + Log.e(TAG, "Don't delete system folder root"); + continue; + } + ContentProviderOperation.Builder builder = ContentProviderOperation + .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); + operationList.add(builder.build()); + } + try { + ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); + if (results == null || results.length == 0 || results[0] == null) { + Log.d(TAG, "delete notes failed, ids:" + ids.toString()); + return false; + } + return true; + } catch (RemoteException e) { + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + } catch (OperationApplicationException e) { + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + } + 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); + } + + 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)); + builder.withValue(NoteColumns.PARENT_ID, folderId); + builder.withValue(NoteColumns.LOCAL_MODIFIED, 1); + operationList.add(builder.build()); + } + + try { + ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); + if (results == null || results.length == 0 || results[0] == null) { + Log.d(TAG, "delete notes failed, ids:" + ids.toString()); + return false; + } + return true; + } catch (RemoteException e) { + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + } catch (OperationApplicationException e) { + Log.e(TAG, String.format("%s: %s", e.toString(), e.getMessage())); + } + return false; + } + + /** + * Get the all folder count except system folders {@link Notes#TYPE_SYSTEM}} + */ + +/* +这是一个Java类`DataUtils`，它包含两个静态方法`getUserFolderCount`和`visibleInNoteDatabase`。 + +`getUserFolderCount`方法接受一个`ContentResolver`对象，用于查询用户创建的文件夹数量。该方法的作用是查询所有类型为`Notes.TYPE_FOLDER`且不属于回收站的笔记数量，并返回查询结果的数量。 + +具体来说，该方法使用`resolver.query`方法查询属于用户创建的文件夹的笔记数量，并使用`NoteColumns.TYPE`和`NoteColumns.PARENT_ID`作为查询条件。如果查询结果不为空，则该方法获取第一个结果行的第一个列的值，并将其作为文件夹数量返回。 + +`visibleInNoteDatabase`方法接受三个参数：一个`ContentResolver`对象、一个`long`类型的`noteId`和一个`int`类型的`type`。该方法的作用是检查指定ID的笔记是否可见，并返回一个布尔值。 + +具体来说，该方法使用`resolver.query`方法查询指定ID的笔记，并使用`NoteColumns.TYPE`和`NoteColumns.PARENT_ID`作为查询条件。如果查询结果不为空且结果行数大于0，则该方法返回`true`，否则返回`false`。 + +*/ + public static int getUserFolderCount(ContentResolver resolver) { + Cursor cursor =resolver.query(Notes.CONTENT_NOTE_URI, + new String[] { "COUNT(*)" }, + NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>?", + new String[] { String.valueOf(Notes.TYPE_FOLDER), String.valueOf(Notes.ID_TRASH_FOLER)}, + null); + + int count = 0; + if(cursor != null) { + if(cursor.moveToFirst()) { + try { + count = cursor.getInt(0); + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, "get folder count failed:" + e.toString()); + } finally { + cursor.close(); + } + } + } + return count; + } + + public static boolean visibleInNoteDatabase(ContentResolver resolver, long noteId, int type) { + Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), + null, + NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER, + new String [] {String.valueOf(type)}, + null); + + boolean exist = false; + if (cursor != null) { + if (cursor.getCount() > 0) { + 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) { + exist = true; + } + cursor.close(); + } + 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) { + exist = true; + } + cursor.close(); + } + 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); + boolean exist = false; + if(cursor != null) { + if(cursor.getCount() > 0) { + exist = true; + } + cursor.close(); + } + 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); + + HashSet set = null; + if (c != null) { + if (c.moveToFirst()) { + set = new HashSet(); + do { + try { + AppWidgetAttribute widget = new AppWidgetAttribute(); + widget.widgetId = c.getInt(0); + widget.widgetType = c.getInt(1); + set.add(widget); + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, e.toString()); + } + } while (c.moveToNext()); + } + c.close(); + } + return set; + } + +/* +这是一个Java类`DataUtils`，它包含两个静态方法`getCallNumberByNoteId`和`getNoteIdByPhoneNumberAndCallDate`。 + +`getCallNumberByNoteId`方法接受两个参数：一个`ContentResolver`对象和一个`long`类型的`noteId`。该方法的作用是查询指定ID的笔记中的电话号码，并返回该电话号码的字符串表示形式。 + +具体来说，该方法使用`resolver.query`方法查询指定ID的笔记，并使用`CallNote.PHONE_NUMBER`作为查询的列名，以及`CallNote.NOTE_ID`和`CallNote.MIME_TYPE`作为查询条件。如果查询结果不为空，则该方法获取第一个结果行的电话号码，并将其作为字符串返回。 + +`getNoteIdByPhoneNumberAndCallDate`方法接受三个参数：一个`ContentResolver`对象、一个`String`类型的`phoneNumber`和一个`long`类型的`callDate`。该方法的作用是查询包含指定电话号码和通话日期的笔记，并返回该笔记的ID。 +*/ + 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); + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, "Get call number fails " + e.toString()); + } finally { + cursor.close(); + } + } + return ""; + } + + public static long getNoteIdByPhoneNumberAndCallDate(ContentResolver resolver, String phoneNumber, long callDate) { + Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, + new String [] { CallNote.NOTE_ID }, + CallNote.CALL_DATE + "=? AND " + CallNote.MIME_TYPE + "=? AND PHONE_NUMBERS_EQUAL(" + + CallNote.PHONE_NUMBER + ",?)", + new String [] { String.valueOf(callDate), CallNote.CONTENT_ITEM_TYPE, phoneNumber }, + null); + + if (cursor != null) { + if (cursor.moveToFirst()) { + try { + return cursor.getLong(0); + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, "Get call note id fails " + e.toString()); + } + } + cursor.close(); + } + 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); + + if (cursor != null) { + String snippet = ""; + if (cursor.moveToFirst()) { + snippet = cursor.getString(0); + } + cursor.close(); + return snippet; + } + throw new IllegalArgumentException("Note is not found with id: " + noteId); + } + + public static String getFormattedSnippet(String snippet) { + if (snippet != null) { + snippet = snippet.trim(); + int index = snippet.indexOf('\n'); + if (index != -1) { + snippet = snippet.substring(0, index); + } + } + return snippet; + } +} diff --git a/res/代码精读/tool/GTaskStringUtils.java b/res/代码精读/tool/GTaskStringUtils.java new file mode 100644 index 00000000..666b7290 --- /dev/null +++ b/res/代码精读/tool/GTaskStringUtils.java @@ -0,0 +1,113 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.tool; + +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"; + +} diff --git a/res/代码精读/tool/ResourceParser.java b/res/代码精读/tool/ResourceParser.java new file mode 100644 index 00000000..1ad3ad60 --- /dev/null +++ b/res/代码精读/tool/ResourceParser.java @@ -0,0 +1,181 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.tool; + +import android.content.Context; +import android.preference.PreferenceManager; + +import net.micode.notes.R; +import net.micode.notes.ui.NotesPreferenceActivity; + +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, + R.drawable.edit_blue, + R.drawable.edit_white, + 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, + R.drawable.edit_title_white, + 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) { + if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean( + NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) { + return (int) (Math.random() * NoteBgResources.BG_EDIT_RESOURCES.length); + } else { + return BG_DEFAULT_COLOR; + } + } + + public static class NoteItemBgResources { + private final static int [] BG_FIRST_RESOURCES = new int [] { + R.drawable.list_yellow_up, + R.drawable.list_blue_up, + R.drawable.list_white_up, + 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, + R.drawable.list_white_middle, + 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, + R.drawable.list_white_down, + 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, + R.drawable.list_white_single, + 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, + R.drawable.widget_2x_blue, + R.drawable.widget_2x_white, + 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, + R.drawable.widget_4x_white, + 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, + R.style.TextAppearanceMedium, + R.style.TextAppearanceLarge, + R.style.TextAppearanceSuper + }; + + public static int getTexAppearanceResource(int id) { + /** + * HACKME: Fix bug of store the resource id in shared preference. + * The id may larger than the length of resources, in this case, + * return the {@link ResourceParser#BG_DEFAULT_FONT_SIZE} + */ + if (id >= TEXTAPPEARANCE_RESOURCES.length) { + return BG_DEFAULT_FONT_SIZE; + } + return TEXTAPPEARANCE_RESOURCES[id]; + } + + public static int getResourcesSize() { + return TEXTAPPEARANCE_RESOURCES.length; + } + } +} diff --git a/res/代码精读/widget/NoteWidgetProvider.java b/res/代码精读/widget/NoteWidgetProvider.java new file mode 100644 index 00000000..43e36036 --- /dev/null +++ b/res/代码精读/widget/NoteWidgetProvider.java @@ -0,0 +1,147 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.widget; +import android.app.PendingIntent; +import android.appwidget.AppWidgetManager; +import android.appwidget.AppWidgetProvider; +import android.content.ContentValues; +import android.content.Context; +import android.content.Intent; +import android.database.Cursor; +import android.util.Log; +import android.widget.RemoteViews; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.NoteColumns; +import net.micode.notes.tool.ResourceParser; +import net.micode.notes.ui.NoteEditActivity; +import net.micode.notes.ui.NotesListActivity; + +public abstract class NoteWidgetProvider extends AppWidgetProvider { + public static final String [] PROJECTION = new String [] { + NoteColumns.ID, + NoteColumns.BG_COLOR_ID, + NoteColumns.SNIPPET + }; + + public static final int COLUMN_ID = 0; + public static final int COLUMN_BG_COLOR_ID = 1; + public static final int COLUMN_SNIPPET = 2; + + private static final String TAG = "NoteWidgetProvider"; + + @Override + public void onDeleted(Context context, int[] appWidgetIds) { + ContentValues values = new ContentValues(); + values.put(NoteColumns.WIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID); + for (int i = 0; i < appWidgetIds.length; i++) { + context.getContentResolver().update(Notes.CONTENT_NOTE_URI, + values, + NoteColumns.WIDGET_ID + "=?", + new String[] { String.valueOf(appWidgetIds[i])}); + } + } + +/* +这是一个Java类`NoteWidgetProvider`中的一个方法`update`，它用于更新小部件的内容和外观。 + +具体来说，`update`方法有两个重载版本：一个公共版本和一个私有版本。公共版本调用私有版本，并将`privacyMode`参数设置为`false`。 + +私有版本的`update`方法遍历所有小部件ID，并为每个小部件更新内容和外观。具体来说，该方法执行以下步骤： + +- 获取小部件的背景ID和内容片段。 +- 创建一个启动笔记编辑或查看活动的意图，并将小部件的ID和类型作为额外参数传递。 +- 如果数据库中存在与小部件ID相对应的笔记，则将意图的操作设置为`Intent.ACTION_VIEW`，并将笔记的ID作为额外参数传递。否则，将操作设置为`Intent.ACTION_INSERT_OR_EDIT`。 +- 根据小部件的背景ID和内容片段，创建一个`RemoteViews`对象，并设置小部件的背景图像和文本。 +- 为小部件的文本视图设置一个单击操作，该操作将启动上述意图。如果`privacyMode`为`true`，则文本视图将显示“正在访问模式”。 +- 使用`AppWidgetManager.updateAppWidget`方法更新小部件的内容和外观。 + +*/ + private Cursor getNoteWidgetInfo(Context context, int widgetId) { + return context.getContentResolver().query(Notes.CONTENT_NOTE_URI, + PROJECTION, + NoteColumns.WIDGET_ID + "=? AND " + NoteColumns.PARENT_ID + "<>?", + new String[] { String.valueOf(widgetId), String.valueOf(Notes.ID_TRASH_FOLER) }, + null); + } + + protected void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { + update(context, appWidgetManager, appWidgetIds, false); + } + + private void update(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds, + boolean privacyMode) { + for (int i = 0; i < appWidgetIds.length; i++) { + if (appWidgetIds[i] != AppWidgetManager.INVALID_APPWIDGET_ID) { + int bgId = ResourceParser.getDefaultBgId(context); + String snippet = ""; + Intent intent = new Intent(context, NoteEditActivity.class); + intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP); + intent.putExtra(Notes.INTENT_EXTRA_WIDGET_ID, appWidgetIds[i]); + intent.putExtra(Notes.INTENT_EXTRA_WIDGET_TYPE, getWidgetType()); + + Cursor c = getNoteWidgetInfo(context, appWidgetIds[i]); + if (c != null && c.moveToFirst()) { + if (c.getCount() > 1) { + Log.e(TAG, "Multiple message with same widget id:" + appWidgetIds[i]); + c.close(); + return; + } + snippet = c.getString(COLUMN_SNIPPET); + bgId = c.getInt(COLUMN_BG_COLOR_ID); + intent.putExtra(Intent.EXTRA_UID, c.getLong(COLUMN_ID)); + intent.setAction(Intent.ACTION_VIEW); + } else { + snippet = context.getResources().getString(R.string.widget_havenot_content); + intent.setAction(Intent.ACTION_INSERT_OR_EDIT); + } + + if (c != null) { + c.close(); + } + + RemoteViews rv = new RemoteViews(context.getPackageName(), getLayoutId()); + rv.setImageViewResource(R.id.widget_bg_image, getBgResourceId(bgId)); + intent.putExtra(Notes.INTENT_EXTRA_BACKGROUND_ID, bgId); + /** + * Generate the pending intent to start host for the widget + */ + PendingIntent pendingIntent = null; + if (privacyMode) { + rv.setTextViewText(R.id.widget_text, + context.getString(R.string.widget_under_visit_mode)); + pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], new Intent( + context, NotesListActivity.class), PendingIntent.FLAG_UPDATE_CURRENT); + } else { + rv.setTextViewText(R.id.widget_text, snippet); + pendingIntent = PendingIntent.getActivity(context, appWidgetIds[i], intent, + PendingIntent.FLAG_UPDATE_CURRENT); + } + + rv.setOnClickPendingIntent(R.id.widget_text, pendingIntent); + appWidgetManager.updateAppWidget(appWidgetIds[i], rv); + } + } + } + + protected abstract int getBgResourceId(int bgId); + + protected abstract int getLayoutId(); + + protected abstract int getWidgetType(); +} diff --git a/res/代码精读/widget/NoteWidgetProvider_2x.java b/res/代码精读/widget/NoteWidgetProvider_2x.java new file mode 100644 index 00000000..4c8dbee0 --- /dev/null +++ b/res/代码精读/widget/NoteWidgetProvider_2x.java @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.widget; + +import android.appwidget.AppWidgetManager; +import android.content.Context; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.tool.ResourceParser; + +/* +这是一个Java类`NoteWidgetProvider_2x`，它继承自`NoteWidgetProvider`类。 + +`NoteWidgetProvider_2x`类覆盖了`NoteWidgetProvider`类的三个方法：`onUpdate`、`getLayoutId`和`getBgResourceId`。 + +`onUpdate`方法调用了`NoteWidgetProvider`类的`update`方法，并传递了相同的参数。 + +`getLayoutId`方法返回小部件布局的资源ID，该布局用于在小部件上显示笔记的内容。 + +`getBgResourceId`方法返回小部件背景的资源ID，该背景用于在小部件上显示笔记的背景。 + +`getWidgetType`方法返回小部件的类型，该类型为`Notes.TYPE_WIDGET_2X`，表示这是一个2x2大小的小部件。 +*/ + +public class NoteWidgetProvider_2x extends NoteWidgetProvider { + @Override + public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { + super.update(context, appWidgetManager, appWidgetIds); + } + + @Override + protected int getLayoutId() { + return R.layout.widget_2x; + } + + @Override + protected int getBgResourceId(int bgId) { + return ResourceParser.WidgetBgResources.getWidget2xBgResource(bgId); + } + + @Override + protected int getWidgetType() { + return Notes.TYPE_WIDGET_2X; + } +} diff --git a/res/代码精读/widget/NoteWidgetProvider_4x.java b/res/代码精读/widget/NoteWidgetProvider_4x.java new file mode 100644 index 00000000..4e2f8641 --- /dev/null +++ b/res/代码精读/widget/NoteWidgetProvider_4x.java @@ -0,0 +1,59 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package net.micode.notes.widget; + +import android.appwidget.AppWidgetManager; +import android.content.Context; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.tool.ResourceParser; + +/* +这是一个Java类`NoteWidgetProvider_2x`，它继承自`NoteWidgetProvider`类。 + +`NoteWidgetProvider_2x`类覆盖了`NoteWidgetProvider`类的三个方法：`onUpdate`、`getLayoutId`和`getBgResourceId`。 + +`onUpdate`方法调用了`NoteWidgetProvider`类的`update`方法，并传递了相同的参数。 + +`getLayoutId`方法返回小部件布局的资源ID，该布局用于在小部件上显示笔记的内容。 + +`getBgResourceId`方法返回小部件背景的资源ID，该背景用于在小部件上显示笔记的背景。 + +`getWidgetType`方法返回小部件的类型，该类型为`Notes.TYPE_WIDGET_2X`，表示这是一个2x2大小的小部件。 +*/ + +public class NoteWidgetProvider_4x extends NoteWidgetProvider { + @Override + public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) { + super.update(context, appWidgetManager, appWidgetIds); + } + + protected int getLayoutId() { + return R.layout.widget_4x; + } + + @Override + protected int getBgResourceId(int bgId) { + return ResourceParser.WidgetBgResources.getWidget4xBgResource(bgId); + } + + @Override + protected int getWidgetType() { + return Notes.TYPE_WIDGET_4X; + } +}