diff --git a/src/Notes/Notes.txt b/src/Notes/Notes.txt new file mode 100644 index 0000000..f4f5021 --- /dev/null +++ b/src/Notes/Notes.txt @@ -0,0 +1,232 @@ +package net.micode.notes.model; + +import android.content.ContentProviderOperation;//批量的更新、插入、删除数据。 +import android.content.ContentProviderResult;//操作的结果 +import android.content.ContentUris;//用于添加和获取Uri后面的ID +import android.content.ContentValues;//一种用来存储基本数据类型数据的存储机制 +import android.content.Context;//需要用该类来弄清楚调用者的实例 +import android.content.OperationApplicationException;//操作应用程序容错 +import android.net.Uri;//表示待操作的数据 +import android.os.RemoteException;//远程容错 +import android.util.Log;//输出日志，比如说出错、警告等 + +public class Note { + // private ContentValues mNoteDiffValues; + 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);//将数据写入数据库表格 + Uri uri = context.getContentResolver().insert(Notes.CONTENT_NOTE_URI, values); + //ContentResolver()主要是实现外部应用对ContentProvider中的数据 + //进行添加、删除、修改和查询操作 + long noteId = 0; + try { + noteId = Long.valueOf(uri.getPathSegments().get(1)); + } catch (NumberFormatException e) { + Log.e(TAG, "Get note id error :" + e.toString()); + noteId = 0; + }//try-catch异常处理 + if (noteId == -1) { + throw new IllegalStateException("Wrong note id:" + noteId); + } + return noteId; + } + + public Note() { + mNoteDiffValues = new ContentValues(); + mNoteData = new NoteData(); + }//定义两个变量用来存储便签的数据，一个是存储便签属性、一个是存储便签内容 + + public void setNoteValue(String key, String value) { + mNoteDiffValues.put(key, value); + mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); + mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); + }//设置数据库表格的标签属性数据 + + public void setTextData(String key, String value) { + mNoteData.setTextData(key, value); + }//设置数据库表格的标签文本内容的数据 + + public void setTextDataId(long id) { + mNoteData.setTextDataId(id); + }//设置文本数据的ID + + public long getTextDataId() { + return mNoteData.mTextDataId; + }//得到文本数据的ID + + public void setCallDataId(long id) { + mNoteData.setCallDataId(id); + }//设置电话号码数据的ID + + public void setCallData(String key, String value) { + mNoteData.setCallData(key, value); + }//得到电话号码数据的ID + + public boolean isLocalModified() { + return mNoteDiffValues.size() > 0 || mNoteData.isLocalModified(); + }//判断是否是本地修改 + + public boolean syncNote(Context context, long noteId) { + if (noteId <= 0) { + throw new IllegalArgumentException("Wrong note id:" + noteId); + } + + if (!isLocalModified()) { + return true; + } + + /** + * In theory, once data changed, the note should be updated on {@link NoteColumns#LOCAL_MODIFIED} and + * {@link NoteColumns#MODIFIED_DATE}. For data safety, though update note fails, we also update the + * 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; + }//判断数据是否同步 + + private class NoteData {//定义一个基本的便签内容的数据类，主要包含文本数据和电话号码数据 + private long mTextDataId; + + private ContentValues mTextDataValues;//文本数据 + + private long mCallDataId; + + private ContentValues mCallDataValues;//电话号码数据 + + private static final String TAG = "NoteData"; + + public NoteData() { + mTextDataValues = new ContentValues(); + mCallDataValues = new ContentValues(); + mTextDataId = 0; + mCallDataId = 0; + } + //下面是上述几个函数的具体实现 + boolean isLocalModified() { + return mTextDataValues.size() > 0 || mCallDataValues.size() > 0; + } + + void setTextDataId(long id) { + if(id <= 0) { + throw new IllegalArgumentException("Text data id should larger than 0"); + } + mTextDataId = id; + } + + void setCallDataId(long id) { + if (id <= 0) { + throw new IllegalArgumentException("Call data id should larger than 0"); + } + mCallDataId = id; + } + + void setCallData(String key, String value) { + mCallDataValues.put(key, value); + mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); + mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); + } + + void setTextData(String key, String value) { + mTextDataValues.put(key, value); + mNoteDiffValues.put(NoteColumns.LOCAL_MODIFIED, 1); + mNoteDiffValues.put(NoteColumns.MODIFIED_DATE, System.currentTimeMillis()); + } + //下面函数的作用是将新的数据通过Uri的操作存储到数据库 + Uri pushIntoContentResolver(Context context, long noteId) { + /** + * Check for safety + */ + if (noteId <= 0) { + throw new IllegalArgumentException("Wrong note id:" + noteId); + }//判断数据是否合法 + + ArrayList operationList = new ArrayList(); + ContentProviderOperation.Builder builder = null;//数据库的操作列表 + + 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(); + }//把文本数据存入DataColumns + + 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(); + }//把电话号码数据存入DataColumns + + 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; + } + }//存储过程中的异常处理 + return null; + } + } +} \ No newline at end of file diff --git a/src/Notes/Notes精读.doc b/src/Notes/Notes精读.doc new file mode 100644 index 0000000..e0c0c69 Binary files /dev/null and b/src/Notes/Notes精读.doc differ diff --git a/src/Notes/Workingnotes.txt b/src/Notes/Workingnotes.txt new file mode 100644 index 0000000..f67a01f --- /dev/null +++ b/src/Notes/Workingnotes.txt @@ -0,0 +1,374 @@ +package net.micode.notes.model; + +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; + + // 声明 DATA_PROJECTION字符串数组 + public static final String[] DATA_PROJECTION = new String[] { + DataColumns.ID, + DataColumns.CONTENT, + DataColumns.MIME_TYPE, + DataColumns.DATA1, + DataColumns.DATA2, + DataColumns.DATA3, + DataColumns.DATA4, + }; + + // 声明 NOTE_PROJECTION字符串数组 + public static final String[] NOTE_PROJECTION = new String[] { + NoteColumns.PARENT_ID, + NoteColumns.ALERTED_DATE, + 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; + + // New note construct + public 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; + } + + // WorkingNote的构造函数 + // Existing note construct + private WorkingNote(Context context, long noteId, long folderId) { + mContext = context; + mNoteId = noteId; + mFolderId = folderId; + mIsDeleted = false; + mNote = new Note(); + loadNote(); + } + + // 加载Note + // 通过数据库调用query函数找到第一个条目 + private void loadNote() { + Cursor cursor = mContext.getContentResolver().query( + ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null, + null, null); + + // 若存在，储存相应信息 + if (cursor != null) { + if (cursor.moveToFirst()) { + mFolderId = cursor.getLong(NOTE_PARENT_ID_COLUMN); + 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(); + // 若不存在，报错 + } else { + Log.e(TAG, "No note with id:" + mNoteId); + throw new IllegalArgumentException("Unable to find note with id " + mNoteId); + } + loadNoteData(); + } + + // 加载NoteData + private void loadNoteData() { + Cursor cursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, DATA_PROJECTION, + DataColumns.NOTE_ID + "=?", new String[] { + String.valueOf(mNoteId) + }, null); + + if (cursor != null) { + // 查到信息不为空 + if (cursor.moveToFirst()) { // 查看第一项是否存在 + do { + String type = cursor.getString(DATA_MIME_TYPE_COLUMN); + if (DataConstants.NOTE.equals(type)) { + 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());//查阅所有项,直到为空 + } + cursor.close(); + } else { + Log.e(TAG, "No data with id:" + mNoteId); + throw new IllegalArgumentException("Unable to find note's data with id " + mNoteId); + } + } + + // 创建空的Note + // 传参：context，文件夹id，widget，背景颜色 + public static WorkingNote createEmptyNote(Context context, long folderId, int widgetId, + int widgetType, int defaultBgColorId) { + WorkingNote note = new WorkingNote(context, folderId); + // 设定相关属性 + note.setBgColorId(defaultBgColorId); + note.setWidgetId(widgetId); + note.setWidgetType(widgetType); + return note; + } + + public static WorkingNote load(Context context, long id) { + return new WorkingNote(context, id, 0); + } + + // 保存Note + public synchronized boolean saveNote() { + if (isWorthSaving()) { //是否值得保存 + if (!existInDatabase()) { // 是否存在数据库中 + if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) { + Log.e(TAG, "Create new note fail with id:" + mNoteId); + return false; + } + } + + mNote.syncNote(mContext, mNoteId); + + /** + * Update widget content if there exist any widget of this note + */ + if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID + && mWidgetType != Notes.TYPE_WIDGET_INVALIDE + && mNoteSettingStatusListener != null) { + mNoteSettingStatusListener.onWidgetChanged(); + } + return true; + } else { + return false; + } + } + + // 是否在数据库中存在 + public boolean existInDatabase() { + return mNoteId > 0; + } + + // 是否值得保存 + private boolean isWorthSaving() { + // 被删除，或（不在数据库中 内容为空），或 本地已保存过 + if (mIsDeleted || (!existInDatabase() && TextUtils.isEmpty(mContent)) + || (existInDatabase() && !mNote.isLocalModified())) { + return false; + } else { + return true; + } + } + + + // 设置mNoteSettingStatusListener + public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) { + mNoteSettingStatusListener = l; + } + + // 设置AlertDate + // 若 mAlertDate与data不同，则更改mAlertDate并设定NoteValue + public void setAlertDate(long date, boolean set) { + if (date != mAlertDate) { + mAlertDate = date; + mNote.setNoteValue(NoteColumns.ALERTED_DATE, String.valueOf(mAlertDate)); + } + if (mNoteSettingStatusListener != null) { + mNoteSettingStatusListener.onClockAlertChanged(date, set); + } + } + + // 设定删除标记 + public void markDeleted(boolean mark) { + // 设定标记 + mIsDeleted = mark; + if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID + && mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mNoteSettingStatusListener != null) { + mNoteSettingStatusListener.onWidgetChanged(); + // 调用mNoteSettingStatusListener的 onWidgetChanged方法 + } + } + + // 设定背景颜色 + public void setBgColorId(int id) { + if (id != mBgColorId) { //设定条件 id != mBgColorId + mBgColorId = id; + if (mNoteSettingStatusListener != null) { + mNoteSettingStatusListener.onBackgroundColorChanged(); + } + mNote.setNoteValue(NoteColumns.BG_COLOR_ID, String.valueOf(id)); + } + } + + // 设定检查列表模式 + // 参数：mode + public void setCheckListMode(int mode) { + if (mMode != mode) { //设定条件 mMode != mode + if (mNoteSettingStatusListener != null) { + mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode); + } + mMode = mode; + mNote.setTextData(TextNote.MODE, String.valueOf(mMode)); + } + } + + + // 设定WidgetType + // 参数：type + public void setWidgetType(int type) { + if (type != mWidgetType) {//设定条件 type != mWidgetType + mWidgetType = type; + mNote.setNoteValue(NoteColumns.WIDGET_TYPE, String.valueOf(mWidgetType)); + // 调用Note的setNoteValue方法更改WidgetType + } + } + + // 设定WidgetId + // 参数：id + public void setWidgetId(int id) { + if (id != mWidgetId) {//设定条件 id != mWidgetId + mWidgetId = id; + mNote.setNoteValue(NoteColumns.WIDGET_ID, String.valueOf(mWidgetId)); + // 调用Note的setNoteValue方法更改WidgetId + } + } + + // 设定WorkingTex + // 参数：更改的text + public void setWorkingText(String text) { + if (!TextUtils.equals(mContent, text)) {//设定条件 mContent, text内容不同 + mContent = text; + mNote.setTextData(DataColumns.CONTENT, mContent); + // 调用Note的setTextData方法更改WorkingText + } + } + + // 转变mNote的CallData及CallNote信息 + // 参数：String phoneNumber, long callDate + public void convertToCallNote(String phoneNumber, long callDate) { + mNote.setCallData(CallNote.CALL_DATE, String.valueOf(callDate)); + mNote.setCallData(CallNote.PHONE_NUMBER, phoneNumber); + mNote.setNoteValue(NoteColumns.PARENT_ID, String.valueOf(Notes.ID_CALL_RECORD_FOLDER)); + } + + // 判断是否有时钟题型 + public boolean hasClockAlert() { + return (mAlertDate > 0 ? true : false); + } + + // 获取Content + public String getContent() { + return mContent; + } + + // 获取AlertDate + public long getAlertDate() { + return mAlertDate; + } + + // 获取ModifiedDate + public long getModifiedDate() { + return mModifiedDate; + } + + // 获取背景颜色来源id + public int getBgColorResId() { + return NoteBgResources.getNoteBgResource(mBgColorId); + } + + // 获取背景颜色id + public int getBgColorId() { + return mBgColorId; + } + + // 获取标题背景颜色id + public int getTitleBgResId() { + return NoteBgResources.getNoteTitleBgResource(mBgColorId); + } + + // 获取CheckListMode + public int getCheckListMode() { + return mMode; + } + + // 获取便签id + public long getNoteId() { + return mNoteId; + } + + // 获取文件夹id + public long getFolderId() { + return mFolderId; + } + + // 获取WidgetId + public int getWidgetId() { + return mWidgetId; + } + + // 获取WidgetType + public int getWidgetType() { + return mWidgetType; + } + + // 创建接口 NoteSettingChangedListener,便签更新监视 + // 为NoteEditActivity提供接口 + // 提供函数有 + public interface NoteSettingChangedListener { + /** + * Called when the background color of current note has just changed + */ + void onBackgroundColorChanged(); + + /** + * Called when user set clock + */ + void onClockAlertChanged(long date, boolean set); + + /** + * Call when user create note from widget + */ + void onWidgetChanged(); + + /** + * Call when switch between check list mode and normal mode + * @param oldMode is previous mode before change + * @param newMode is new mode + */ + void onCheckListModeChanged(int oldMode, int newMode); + } +} \ No newline at end of file diff --git a/src/Notes/Workingnotes精读.doc b/src/Notes/Workingnotes精读.doc new file mode 100644 index 0000000..4991845 Binary files /dev/null and b/src/Notes/Workingnotes精读.doc differ diff --git a/src/NotesDatabaseHelper.txt b/src/NotesDatabaseHelper.txt new file mode 100644 index 0000000..1179875 --- /dev/null +++ b/src/NotesDatabaseHelper.txt @@ -0,0 +1,349 @@ +package net.micode.notes.data; + +import android.content.ContentValues;//就是用于保存一些数据（string boolean byte double float int long short ...）信息，这些信息可以被数据库操作时使用。 +import android.content.Context;//加载和访问资源。（android中主要是这两个功能，但是这里具体不清楚） +import android.database.sqlite.SQLiteDatabase;//主要提供了对应于添加、删除、更新、查询的操作方法： insert()、delete()、update()和query()。配合content.values +import android.database.sqlite.SQLiteOpenHelper;//用来管理数据的创建和版本更新 +import android.util.Log; + +import net.micode.notes.data.Notes.DataColumns; +import net.micode.notes.data.Notes.DataConstants; +import net.micode.notes.data.Notes.NoteColumns; +//数据库操作，用SQLOpenhelper,对一些note和文件进行数据库的操作，比如删除文件后，将文件里的note也相应删除 + +public class NotesDatabaseHelper extends SQLiteOpenHelper { + private static final String DB_NAME = "note.db"; + + private static final int DB_VERSION = 4; + + public interface TABLE { //接口，分成note和data，在后面的程序里分别使用过 + public static final String NOTE = "note"; + + public static final String DATA = "data"; + } + + private static final String TAG = "NotesDatabaseHelper"; + + private static NotesDatabaseHelper mInstance; + + private static final String CREATE_NOTE_TABLE_SQL = + "CREATE TABLE " + TABLE.NOTE + "(" + + NoteColumns.ID + " INTEGER PRIMARY KEY," + + 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" + + ")";//数据库中需要存储的项目的名称，就相当于创建一个表格的表头的内容。 + + private static final String CREATE_DATA_TABLE_SQL = + "CREATE TABLE " + TABLE.DATA + "(" + + DataColumns.ID + " INTEGER PRIMARY KEY," + + 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 ''" + + ")";//和上面的功能一样，主要是存储的项目不同 + + private static final String CREATE_DATA_NOTE_ID_INDEX_SQL = + "CREATE INDEX IF NOT EXISTS note_id_index ON " + + TABLE.DATA + "(" + DataColumns.NOTE_ID + ");";//存储便签编号的一个数据表格 + + /** + * Increase folder's note count when move note to the folder + */ + 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";//在文件夹中移入一个Note之后需要更改的数据的表格。 + + /** + * Decrease folder's note count when move note from folder + */ + 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";//在文件夹中移出一个Note之后需要更改的数据的表格。 + + /** + * Increase folder's note count when insert new note to the folder + */ + 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";//在文件夹中插入一个Note之后需要更改的数据的表格。 + + /** + * Decrease folder's note count when delete note from the folder + */ + 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";//在文件夹中删除一个Note之后需要更改的数据的表格。 + + /** + * Update note's content when insert data with type {@link DataConstants#NOTE} + */ + 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";//在文件夹中对一个Note导入新的数据之后需要更改的数据的表格。 + + /** + * Update note's content when data with {@link DataConstants#NOTE} type has changed + */ + 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";//Note数据被修改后需要更改的数据的表格。 + + /** + * Update note's content when data with {@link DataConstants#NOTE} type has deleted + */ + 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";//Note数据被删除后需要更改的数据的表格。 + + /** + * Delete datas belong to note which has been deleted + */ + 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";//删除已删除的便签的数据后需要更改的数据的表格。 + + /** + * Delete notes belong to folder which has been deleted + */ + 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";//删除已删除的文件夹的便签后需要更改的数据的表格。 + + /** + * Move notes belong to folder which has been moved to trash folder + */ + 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";//还原垃圾桶中便签后需要更改的数据的表格。 + + public NotesDatabaseHelper(Context context) { + super(context, DB_NAME, null, DB_VERSION); + }//构造函数，传入数据库的名称和版本 + + public void createNoteTable(SQLiteDatabase db) { + db.execSQL(CREATE_NOTE_TABLE_SQL); + reCreateNoteTableTriggers(db); + createSystemFolder(db); + Log.d(TAG, "note table has been created"); + }//创建表格（用来存储标签属性） + + private void reCreateNoteTableTriggers(SQLiteDatabase db) { + db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_update"); + db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_update"); + 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); + }//execSQL是数据库操作的API，主要是更改行为的SQL语句。 + //在这里主要是用来重新创建上述定义的表格用的，先删除原来有的数据库的触发器再重新创建新的数据库 + + private void createSystemFolder(SQLiteDatabase db) { + ContentValues values = new ContentValues(); + + /** + * call record foler for call notes + */ + values.put(NoteColumns.ID, Notes.ID_CALL_RECORD_FOLDER); + values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); + db.insert(TABLE.NOTE, null, values); + + /** + * root folder which is default folder + */ + 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); + }//创建几个系统文件夹 + + public void createDataTable(SQLiteDatabase db) { + db.execSQL(CREATE_DATA_TABLE_SQL); + reCreateDataTableTriggers(db); + db.execSQL(CREATE_DATA_NOTE_ID_INDEX_SQL); + Log.d(TAG, "data table has been created"); + }//创建表格（用来存储标签内容） + + private void reCreateDataTableTriggers(SQLiteDatabase db) { + db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_insert"); + db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_update"); + db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_delete"); + + db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER); + db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER); + db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER); + }//同上面的execSQL + + static synchronized NotesDatabaseHelper getInstance(Context context) { + if (mInstance == null) { + mInstance = new NotesDatabaseHelper(context); + } + return mInstance; + }//上网查是为解决同一时刻只能有一个线程执行. + //在写程序库代码时，有时有一个类需要被所有的其它类使用， + //但又要求这个类只能被实例化一次，是个服务类，定义一次，其它类使用同一个这个类的实例 + + @Override + public void onCreate(SQLiteDatabase db) { + createNoteTable(db); + createDataTable(db); + }//实现两个表格（上面创建的两个表格） + + @Override + public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { + boolean reCreateTriggers = false; + boolean skipV2 = false; + + if (oldVersion == 1) { + upgradeToV2(db); + skipV2 = true; // this upgrade including the upgrade from v2 to v3 + oldVersion++; + } + + if (oldVersion == 2 && !skipV2) { + upgradeToV3(db); + reCreateTriggers = true; + oldVersion++; + } + + if (oldVersion == 3) { + upgradeToV4(db); + oldVersion++; + } + + if (reCreateTriggers) { + reCreateNoteTableTriggers(db); + reCreateDataTableTriggers(db); + } + + if (oldVersion != newVersion) { + throw new IllegalStateException("Upgrade notes database to version " + newVersion + + "fails"); + } + }//数据库版本的更新（数据库内容的更改） + + private void upgradeToV2(SQLiteDatabase db) { + db.execSQL("DROP TABLE IF EXISTS " + TABLE.NOTE); + db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA); + createNoteTable(db); + createDataTable(db); + }//更新到V2版本 + + private void upgradeToV3(SQLiteDatabase db) { + // drop unused triggers + db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_insert"); + 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); + }//更新到V3版本 + + private void upgradeToV4(SQLiteDatabase db) { + db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION + + " INTEGER NOT NULL DEFAULT 0"); + }//更新到V4版本,但是不知道V2、V3、V4是什么意思 +} \ No newline at end of file diff --git a/src/NotesProvider.txt b/src/NotesProvider.txt new file mode 100644 index 0000000..8764365 --- /dev/null +++ b/src/NotesProvider.txt @@ -0,0 +1,320 @@ +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; +//为存储和获取数据提供接口。可以在不同的应用程序之间共享数据 +//ContentProvider提供的方法 +//query：查询 +//insert：插入 +//update：更新 +//delete：删除 +//getType：得到数据类型 +public class NotesProvider extends ContentProvider { + // UriMatcher用于匹配Uri + private static final UriMatcher mMatcher; + + private NotesDatabaseHelper mHelper; + + private static final String TAG = "NotesProvider"; + + private static final int URI_NOTE = 1; + private static final int URI_NOTE_ITEM = 2; + private static final int URI_DATA = 3; + private static final int URI_DATA_ITEM = 4; + + private static final int URI_SEARCH = 5; + private static final int URI_SEARCH_SUGGEST = 6; + + static { + // 创建UriMatcher时，调用UriMatcher(UriMatcher.NO_MATCH)表示不匹配任何路径的返回码 + mMatcher = new UriMatcher(UriMatcher.NO_MATCH); + // 把需要匹配Uri路径全部给注册上 + mMatcher.addURI(Notes.AUTHORITY, "note", URI_NOTE); + mMatcher.addURI(Notes.AUTHORITY, "note/#", URI_NOTE_ITEM); + mMatcher.addURI(Notes.AUTHORITY, "data", URI_DATA); + 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. + */ + // 声明 NOTES_SEARCH_PROJECTION + private static final String NOTES_SEARCH_PROJECTION = NoteColumns.ID + "," + + NoteColumns.ID + " AS " + SearchManager.SUGGEST_COLUMN_INTENT_EXTRA_DATA + "," + + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_1 + "," + + "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; + // 声明NOTES_SNIPPET_SEARCH_QUERY + private static String NOTES_SNIPPET_SEARCH_QUERY = "SELECT " + NOTES_SEARCH_PROJECTION + + " FROM " + TABLE.NOTE + + " WHERE " + NoteColumns.SNIPPET + " LIKE ?" + + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + + " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE; + + @Override + // Context只有在onCreate()中才被初始化 + // 对mHelper进行实例化 + public boolean onCreate() { + mHelper = NotesDatabaseHelper.getInstance(getContext()); + return true; + } + + @Override + // 查询uri在数据库中对应的位置 + public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, + String sortOrder) { + Cursor c = null; + // 获取可读数据库 + SQLiteDatabase db = mHelper.getReadableDatabase(); + String id = null; + // 匹配查找uri + switch (mMatcher.match(uri)) { + // 对于不同的匹配值，在数据库中查找相应的条目 + case URI_NOTE: + c = db.query(TABLE.NOTE, projection, selection, selectionArgs, null, null, + sortOrder); + 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) { + // 不合法的参数异常 + throw new IllegalArgumentException( + "do not specify sortOrder, selection, selectionArgs, or projection" + "with this query"); + } + + String searchString = null; + if (mMatcher.match(uri) == URI_SEARCH_SUGGEST) { + if (uri.getPathSegments().size() > 1) { + // getPathSegments()方法得到一个String的List， + // 在uri.getPathSegments().get(1)为第2个元素 + searchString = uri.getPathSegments().get(1); + } + } else { + searchString = uri.getQueryParameter("pattern"); + } + + if (TextUtils.isEmpty(searchString)) { + return null; + } + + try { + searchString = String.format("%%%s%%", searchString); + c = db.rawQuery(NOTES_SNIPPET_SEARCH_QUERY, + new String[] { searchString }); + } catch (IllegalStateException ex) { + Log.e(TAG, "got exception: " + ex.toString()); + } + break; + default: + // 抛出异常 + throw new IllegalArgumentException("Unknown URI " + uri); + } + if (c != null) { + c.setNotificationUri(getContext().getContentResolver(), uri); + } + return c; + } + + @Override + // 插入一个uri + public Uri insert(Uri uri, ContentValues values) { + // 获得可写的数据库 + SQLiteDatabase db = mHelper.getWritableDatabase(); + long dataId = 0, noteId = 0, insertedId = 0; + switch (mMatcher.match(uri)) { + // 新增一个条目 + case URI_NOTE: + insertedId = noteId = db.insert(TABLE.NOTE, null, values); + break; + // 如果存在，查找NOTE_ID + case URI_DATA: + if (values.containsKey(DataColumns.NOTE_ID)) { + noteId = values.getAsLong(DataColumns.NOTE_ID); + } 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 + // notifyChange获得一个ContextResolver对象并且更新里面的内容 + if (noteId > 0) { + getContext().getContentResolver().notifyChange( + ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null); + } + + // Notify the data uri + if (dataId > 0) { + getContext().getContentResolver().notifyChange( + ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null); + } + + // 返回插入的uri的路径 + return ContentUris.withAppendedId(uri, insertedId); + } + + @Override + // 删除一个uri + public int delete(Uri uri, String selection, String[] selectionArgs) { + //Uri代表要操作的数据，Android上可用的每种资源 -包括 图像、视频片段、音频资源等都可以用Uri来表示。 + int count = 0; + String id = null; + // 获得可写的数据库 + SQLiteDatabase db = mHelper.getWritableDatabase(); + boolean deleteData = false; + switch (mMatcher.match(uri)) { + 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 + // 更新一个uri + 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; + } + + // 将字符串解析成规定格式 + private String parseSelection(String selection) { + return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : ""); + } + + //增加一个noteVersion + private void increaseNoteVersion(long id, String selection, String[] selectionArgs) { + StringBuilder sql = new StringBuilder(120); + sql.append("UPDATE "); + 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); + } + + // execSQL()方法可以执行insert、delete、update和CREATE TABLE之类有更改行为的SQL语句 + mHelper.getWritableDatabase().execSQL(sql.toString()); + } + + @Override + public String getType(Uri uri) { + // TODO Auto-generated method stub + return null; + } + +} \ No newline at end of file diff --git a/src/Tool/BackupUtils.txt b/src/Tool/BackupUtils.txt new file mode 100644 index 0000000..177eeb3 --- /dev/null +++ b/src/Tool/BackupUtils.txt @@ -0,0 +1,311 @@ +package net.micode.notes.tool; + +public class BackupUtils { + private static final String TAG = "BackupUtils"; + // Singleton stuff + private static BackupUtils sInstance; //类里面为什么可以定义自身类的对象？ + + public static synchronized BackupUtils getInstance(Context context) { + //ynchronized 关键字，代表这个方法加锁,相当于不管哪一个线程（例如线程A） + //运行到这个方法时,都要检查有没有其它线程B（或者C、 D等）正在用这个方法(或者该类的其他同步方法)，有的话要等正在使用synchronized方法的线程B（或者C 、D）运行完这个方法后再运行此线程A,没有的话,锁定调用者,然后直接运行。 + //它包括两种用法：synchronized 方法和 synchronized 块。 + if (sInstance == null) { + //如果当前备份不存在，则新声明一个 + sInstance = new BackupUtils(context); + } + return sInstance; + } + + /** + * Following states are signs to represents backup or restore + * status + */ + // Currently, the sdcard is not mounted SD卡没有被装入手机 + public static final int STATE_SD_CARD_UNMOUONTED = 0; + // The backup file not exist 备份文件夹不存在 + public static final int STATE_BACKUP_FILE_NOT_EXIST = 1; + // The data is not well formated, may be changed by other programs 数据已被破坏，可能被修改 + public static final int STATE_DATA_DESTROIED = 2; + // Some run-time exception which causes restore or backup fails 超时异常 + public static final int STATE_SYSTEM_ERROR = 3; + // Backup or restore success 成功存储 + public static final int STATE_SUCCESS = 4; + + private TextExport mTextExport; + + private BackupUtils(Context context) { //初始化函数 + mTextExport = new TextExport(context); + } + + private static boolean externalStorageAvailable() { //外部存储功能是否可用 + return Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState()); + } + + public int exportToText() { + return mTextExport.exportToText(); + } + + public String getExportedTextFileName() { + return mTextExport.mFileName; + } + + public String getExportedTextFileDir() { + return mTextExport.mFileDirectory; + } + + private static class TextExport { + private static final String[] NOTE_PROJECTION = { + NoteColumns.ID, + 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 = ""; //为什么为空? + mFileDirectory = ""; + } + + private String getFormat(int id) { //获取文本的组成部分 + return TEXT_FORMAT[id]; + } + + /** + * Export the folder identified by folder id to text + */ + private void exportFolderToText(String folderId, PrintStream ps) { + // Query notes belong to this folder 通过查询parent id是文件夹id的note来选出制定ID文件夹下的Note + Cursor notesCursor = mContext.getContentResolver().query(Notes.CONTENT_NOTE_URI, + NOTE_PROJECTION, NoteColumns.PARENT_ID + "=?", new String[] { + folderId + }, null); + + if (notesCursor != null) { + if (notesCursor.moveToFirst()) { + do { + // Print note's last modified date ps里面保存有这份note的日期 + ps.println(String.format(getFormat(FORMAT_NOTE_DATE), DateFormat.format( + mContext.getString(R.string.format_datetime_mdhm), + notesCursor.getLong(NOTE_COLUMN_MODIFIED_DATE)))); + // Query data belong to this note + String noteId = notesCursor.getString(NOTE_COLUMN_ID); + exportNoteToText(noteId, ps); //将文件导出到text + } while (notesCursor.moveToNext()); + } + notesCursor.close(); + } + } + + /** + * Export note identified by id to a print stream + */ + private void exportNoteToText(String noteId, PrintStream ps) { + Cursor dataCursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, + DATA_PROJECTION, DataColumns.NOTE_ID + "=?", new String[] { + noteId + }, null); + + if (dataCursor != null) { //利用光标来扫描内容，区别为callnote和note两种，靠ps.printline输出 + if (dataCursor.moveToFirst()) { + do { + String mimeType = dataCursor.getString(DATA_COLUMN_MIME_TYPE); + 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)) { //判断是否为空字符 + 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() { //总函数，调用上面的exportFolder和exportNote + if (!externalStorageAvailable()) { + Log.d(TAG, "Media was not mounted"); + return STATE_SD_CARD_UNMOUONTED; + } + + PrintStream ps = getExportToTextPrintStream(); + if (ps == null) { + Log.e(TAG, "get print stream error"); + return STATE_SYSTEM_ERROR; + } + // First export folder and its notes 导出文件夹，就是导出里面包含的便签 + Cursor folderCursor = mContext.getContentResolver().query( + Notes.CONTENT_NOTE_URI, + NOTE_PROJECTION, + "(" + NoteColumns.TYPE + "=" + Notes.TYPE_FOLDER + " AND " + + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + ") OR " + + NoteColumns.ID + "=" + Notes.ID_CALL_RECORD_FOLDER, null, null); + + if (folderCursor != null) { + if (folderCursor.moveToFirst()) { + do { + // 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 将根目录里的便签导出（由于不属于任何文件夹，因此无法通过文件夹导出来实现这一部分便签的导出） + Cursor noteCursor = mContext.getContentResolver().query( + Notes.CONTENT_NOTE_URI, + NOTE_PROJECTION, + NoteColumns.TYPE + "=" + +Notes.TYPE_NOTE + " AND " + NoteColumns.PARENT_ID + + "=0", null, null); + + if (noteCursor != null) { + if (noteCursor.moveToFirst()) { + do { + 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} + */ + 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); //将ps输出流输出到特定的文件，目的就是导出到文件，而不是直接输出 + } catch (FileNotFoundException e) { + e.printStackTrace(); + return null; + } 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()); //外部（SD卡）的存储路径 + sb.append(context.getString(filePathResId)); //文件的存储路径 + File filedir = new File(sb.toString()); //filedir应该就是用来存储路径信息 + sb.append(context.getString( + fileNameFormatResId, + DateFormat.format(context.getString(R.string.format_date_ymd), + System.currentTimeMillis()))); + File file = new File(sb.toString()); + + try { //如果这些文件不存在，则新建 + if (!filedir.exists()) { + filedir.mkdir(); + } + if (!file.exists()) { + file.createNewFile(); + } + return file; + } catch (SecurityException e) { + e.printStackTrace(); + } catch (IOException e) { + e.printStackTrace(); + } +// try catch 异常处理 + return null; + } +} + \ No newline at end of file diff --git a/src/Tool/BackupUtils精读.doc b/src/Tool/BackupUtils精读.doc new file mode 100644 index 0000000..13db997 Binary files /dev/null and b/src/Tool/BackupUtils精读.doc differ diff --git a/src/Tool/DataUtils.txt b/src/Tool/DataUtils.txt new file mode 100644 index 0000000..df7a068 --- /dev/null +++ b/src/Tool/DataUtils.txt @@ -0,0 +1,263 @@ +package net.micode.notes.tool; + +public class DataUtils { + public static final String TAG = "DataUtils"; + public static boolean batchDeleteNotes(ContentResolver resolver, HashSet ids) { //直接删除多个笔记 + if (ids == null) { + Log.d(TAG, "the ids is null"); + return true; + } + if (ids.size() == 0) { + Log.d(TAG, "no id is in the hashset"); + return true; + } + + ArrayList operationList = new ArrayList(); //提供一个任务列表 + for (long id : ids) { + if(id == Notes.ID_ROOT_FOLDER) { + Log.e(TAG, "Don't delete system folder root"); + continue; + } //如果发现是根文件夹，则不删除 + ContentProviderOperation.Builder builder = ContentProviderOperation + .newDelete(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); //用newDelete实现删除功能 + operationList.add(builder.build()); // + } + try { + ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList);//主机名（或叫Authority）用于唯一标识这个ContentProvider，外部调用者可以根据这个标识来找到它。 + //数据库事务，数据库事务是由一组数据库操作序列组成，事务作为一个整体被执行 + if (results == null || results.length == 0 || results[0] == null) { + Log.d(TAG, "delete notes failed, ids:" + ids.toString()); + return false; + } + 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); //对需要移动的便签进行数据更新，然后用update实现 + } + + public static boolean batchMoveToFolder(ContentResolver resolver, HashSet ids, + long folderId) { + if (ids == null) { + Log.d(TAG, "the ids is null"); + return true; + } + + ArrayList operationList = new ArrayList(); + for (long id : ids) { + ContentProviderOperation.Builder builder = ContentProviderOperation + .newUpdate(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, id)); //通过withAppendedId方法，为该Uri加上ID + builder.withValue(NoteColumns.PARENT_ID, folderId); + builder.withValue(NoteColumns.LOCAL_MODIFIED, 1); + operationList.add(builder.build()); + }//将ids里包含的每一列的数据逐次加入到operationList中，等待最后的批量处理 + + try { + ContentProviderResult[] results = resolver.applyBatch(Notes.AUTHORITY, operationList); //applyBatch一次性处理一个操作列表 + if (results == null || results.length == 0 || results[0] == null) { + Log.d(TAG, "delete notes failed, ids:" + ids.toString()); + return false; + } + 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}} + */ + 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); //筛选条件：源文件不为trash folder + + int count = 0; + if(cursor != null) { + if(cursor.moveToFirst()) { + try { + count = cursor.getInt(0); + } 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), //通过withAppendedId方法，为该Uri加上ID + null, + NoteColumns.TYPE + "=? AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER, + new String [] {String.valueOf(type)}, + null); //查询条件：type符合，且不属于垃圾文件夹 + + boolean exist = false; + if (cursor != null) { + if (cursor.getCount() > 0) {//用getcount函数判断cursor是否为空 + exist = true; + } + cursor.close(); + } + return exist; + } + + public static boolean existInNoteDatabase(ContentResolver resolver, long noteId) { + Cursor cursor = resolver.query(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), + null, null, null, null); + + boolean exist = false; + if (cursor != null) { + if (cursor.getCount() > 0) { + 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); + //通过名字查询文件是否存在 + 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); //查询条件：父ID是传入的folderId; + + HashSet set = null; + if (c != null) { + if (c.moveToFirst()) { + set = new HashSet(); + do { + try { + AppWidgetAttribute widget = new AppWidgetAttribute(); + widget.widgetId = c.getInt(0); //0对应的NoteColumns.WIDGET_ID + widget.widgetType = c.getInt(1); //1对应的NoteColumns.WIDGET_TYPE + set.add(widget); + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, e.toString()); + } + } while (c.moveToNext()); //查询下一条 + } + c.close(); + } + return set; + } + + public static String getCallNumberByNoteId(ContentResolver resolver, long noteId) { + Cursor cursor = resolver.query(Notes.CONTENT_DATA_URI, + new String [] { CallNote.PHONE_NUMBER }, + CallNote.NOTE_ID + "=? AND " + CallNote.MIME_TYPE + "=?", + new String [] { String.valueOf(noteId), CallNote.CONTENT_ITEM_TYPE }, + null); + + if (cursor != null && cursor.moveToFirst()) { + try { + return cursor.getString(0); + } 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); + //通过数据库操作，查询条件是（callDate和phoneNumber匹配传入参数的值） + + if (cursor != null) { + if (cursor.moveToFirst()) { + try { + return cursor.getLong(0); //0对应的CallNote.NOTE_ID + } 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);//查询条件：noteId + + 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) { //对字符串进行格式处理，将字符串两头的空格去掉，同时将换行符去掉 + if (snippet != null) { + snippet = snippet.trim(); + int index = snippet.indexOf('\n'); + if (index != -1) { + snippet = snippet.substring(0, index); + } + } + return snippet; + } + +} \ No newline at end of file diff --git a/src/Tool/DataUtils精读.doc b/src/Tool/DataUtils精读.doc new file mode 100644 index 0000000..8c41f36 Binary files /dev/null and b/src/Tool/DataUtils精读.doc differ diff --git a/src/Tool/GTaskStringUtils.txt b/src/Tool/GTaskStringUtils.txt new file mode 100644 index 0000000..75c0739 --- /dev/null +++ b/src/Tool/GTaskStringUtils.txt @@ -0,0 +1,99 @@ +//简介：定义了很多的静态字符串，目的就是为了提供jsonObject中相应字符串的"key"。把这些静态的定义单独写到了一个类里面，这是非常好的编程规范 +package net.micode.notes.tool; + +//这个类就是定义了一堆static string，实际就是为jsonObject提供Key，把这些定义全部写到一个类里，方便查看管理，是一个非常好的编程习惯 +public class GTaskStringUtils { + + public final static String GTASK_JSON_ACTION_ID = "action_id"; + + public final static String GTASK_JSON_ACTION_LIST = "action_list"; + + public final static String GTASK_JSON_ACTION_TYPE = "action_type"; + + public final static String GTASK_JSON_ACTION_TYPE_CREATE = "create"; + + public final static String GTASK_JSON_ACTION_TYPE_GETALL = "get_all"; + + public final static String GTASK_JSON_ACTION_TYPE_MOVE = "move"; + + public final static String GTASK_JSON_ACTION_TYPE_UPDATE = "update"; + + public final static String GTASK_JSON_CREATOR_ID = "creator_id"; + + public final static String GTASK_JSON_CHILD_ENTITY = "child_entity"; + + public final static String GTASK_JSON_CLIENT_VERSION = "client_version"; + + public final static String GTASK_JSON_COMPLETED = "completed"; + + public final static String GTASK_JSON_CURRENT_LIST_ID = "current_list_id"; + + public final static String GTASK_JSON_DEFAULT_LIST_ID = "default_list_id"; + + public final static String GTASK_JSON_DELETED = "deleted"; + + public final static String GTASK_JSON_DEST_LIST = "dest_list"; + + public final static String GTASK_JSON_DEST_PARENT = "dest_parent"; + + public final static String GTASK_JSON_DEST_PARENT_TYPE = "dest_parent_type"; + + public final static String GTASK_JSON_ENTITY_DELTA = "entity_delta"; + + public final static String GTASK_JSON_ENTITY_TYPE = "entity_type"; + + public final static String GTASK_JSON_GET_DELETED = "get_deleted"; + + public final static String GTASK_JSON_ID = "id"; + + public final static String GTASK_JSON_INDEX = "index"; + + public final static String GTASK_JSON_LAST_MODIFIED = "last_modified"; + + public final static String GTASK_JSON_LATEST_SYNC_POINT = "latest_sync_point"; + + public final static String GTASK_JSON_LIST_ID = "list_id"; + + public final static String GTASK_JSON_LISTS = "lists"; + + public final static String GTASK_JSON_NAME = "name"; + + public final static String GTASK_JSON_NEW_ID = "new_id"; + + public final static String GTASK_JSON_NOTES = "notes"; + + public final static String GTASK_JSON_PARENT_ID = "parent_id"; + + public final static String GTASK_JSON_PRIOR_SIBLING_ID = "prior_sibling_id"; + + public final static String GTASK_JSON_RESULTS = "results"; + + public final static String GTASK_JSON_SOURCE_LIST = "source_list"; + + public final static String GTASK_JSON_TASKS = "tasks"; + + public final static String GTASK_JSON_TYPE = "type"; + + public final static String GTASK_JSON_TYPE_GROUP = "GROUP"; + + public final static String GTASK_JSON_TYPE_TASK = "TASK"; + + public final static String GTASK_JSON_USER = "user"; + + public final static String MIUI_FOLDER_PREFFIX = "[MIUI_Notes]"; + + public final static String FOLDER_DEFAULT = "Default"; + + public final static String FOLDER_CALL_NOTE = "Call_Note"; + + public final static String FOLDER_META = "METADATA"; + + public final static String META_HEAD_GTASK_ID = "meta_gid"; + + public final static String META_HEAD_NOTE = "meta_note"; + + public final static String META_HEAD_DATA = "meta_data"; + + public final static String META_NOTE_NAME = "[META INFO] DON'T UPDATE AND DELETE"; + +} \ No newline at end of file diff --git a/src/Tool/GTaskStringUtils精读.doc b/src/Tool/GTaskStringUtils精读.doc new file mode 100644 index 0000000..0372d94 Binary files /dev/null and b/src/Tool/GTaskStringUtils精读.doc differ diff --git a/src/Tool/ResourceParser.txt b/src/Tool/ResourceParser.txt new file mode 100644 index 0000000..3528455 --- /dev/null +++ b/src/Tool/ResourceParser.txt @@ -0,0 +1,175 @@ +package net.micode.notes.tool; + +/*简介：字面意义是资源分析器，实际上就是获取资源并且在程序中使用，比如颜色图片等 + * 实现方法：主要利用R.java这个类，其中包括 + * R.id 组件资源引用 + * R.drawable 图片资源 （被使用） + * R.layout 布局资源 + * R.menu 菜单资源 + * R.String 文字资源 + * R.style 主题资源 （被使用） + * 在按顺序设置好相应的id后，就可以编写简单的getXXX函数获取需要的资源 + * + * 特殊的变量 ： + * @BG_DEFAULT_COLOR 默认背景颜色（黄） + * BG_DEFAULT_FONT_SIZE 默认文本大小（中） + */ + +public class ResourceParser { + + public static final int YELLOW = 0; + public static final int BLUE = 1; + public static final int WHITE = 2; + public static final int GREEN = 3; + public static final int RED = 4; + + public static final int BG_DEFAULT_COLOR = YELLOW; + + public static final int TEXT_SMALL = 0; + public static final int TEXT_MEDIUM = 1; + public static final int TEXT_LARGE = 2; + public static final int TEXT_SUPER = 3; + + public static final int BG_DEFAULT_FONT_SIZE = TEXT_MEDIUM; + + public static class NoteBgResources { + private final static int [] BG_EDIT_RESOURCES = new int [] { + R.drawable.edit_yellow, + 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]; + } + } + //直接获取默认的背景颜色。看不太懂，这个PREFERENCE_SET_BG_COLOR_KEY是个final string,也就是说getBoolean肯定执行else，为什么要这么写 + public static int getDefaultBgId(Context context) { + if (PreferenceManager.getDefaultSharedPreferences(context).getBoolean( + NotesPreferenceActivity.PREFERENCE_SET_BG_COLOR_KEY, false)) { + return (int) (Math.random() * NoteBgResources.BG_EDIT_RESOURCES.length); + } 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 + }; + + //这里有一个容错的函数，防止输入的id大于资源总量，若如此，则自动返回默认的设置结果 + public static int getTexAppearanceResource(int id) { + /** + * HACKME: Fix bug of store the resource id in shared preference. + * 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; + } + } +} \ No newline at end of file diff --git a/src/Tool/ResourceParser精读.doc b/src/Tool/ResourceParser精读.doc new file mode 100644 index 0000000..a67cc64 Binary files /dev/null and b/src/Tool/ResourceParser精读.doc differ diff --git a/src/UI/AlarmAlertActivity.txt b/src/UI/AlarmAlertActivity.txt new file mode 100644 index 0000000..e3327bd --- /dev/null +++ b/src/UI/AlarmAlertActivity.txt @@ -0,0 +1,192 @@ +package net.micode.notes.ui; + +import android.app.Activity; +import android.app.AlertDialog; +import android.content.Context; +import android.content.DialogInterface; +import android.content.DialogInterface.OnClickListener; +import android.content.DialogInterface.OnDismissListener; +import android.content.Intent; +import android.media.AudioManager; +import android.media.MediaPlayer; +import android.media.RingtoneManager; +import android.net.Uri; +import android.os.Bundle; +import android.os.PowerManager; +import android.provider.Settings; +import android.view.Window; +import android.view.WindowManager; + +import net.micode.notes.R; +import net.micode.notes.data.Notes; +import net.micode.notes.tool.DataUtils; + +import java.io.IOException; + +public class AlarmAlertActivity extends Activity implements OnClickListener, OnDismissListener { + private long mNoteId; //文本在数据库存储中的ID号 + private String mSnippet; //闹钟提示时出现的文本片段 + private static final int SNIPPET_PREW_MAX_LEN = 60; + MediaPlayer mPlayer; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + //Bundle类型的数据与Map类型的数据相似，都是以key-value的形式存储数据的 + //onsaveInstanceState方法是用来保存Activity的状态的 + //能从onCreate的参数savedInsanceState中获得状态数据 + requestWindowFeature(Window.FEATURE_NO_TITLE); + //界面显示——无标题 + + final Window win = getWindow(); + win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED); + + if (!isScreenOn()) { + win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON + //保持窗体点亮 + | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON + //将窗体点亮 + | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON + //允许窗体点亮时锁屏 + | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR); + }//在手机锁屏后如果到了闹钟提示时间，点亮屏幕 + + Intent intent = getIntent(); + + try { + mNoteId = Long.valueOf(intent.getData().getPathSegments().get(1)); + mSnippet = DataUtils.getSnippetById(this.getContentResolver(), mNoteId); + //根据ID从数据库中获取标签的内容； + //getContentResolver（）是实现数据共享，实例存储。 + mSnippet = mSnippet.length() > SNIPPET_PREW_MAX_LEN ? mSnippet.substring(0, + SNIPPET_PREW_MAX_LEN) + getResources().getString(R.string.notelist_string_info) + : mSnippet; + //判断标签片段是否达到符合长度 + } catch (IllegalArgumentException e) { + e.printStackTrace(); + return; + } + /* + try + { + // 代码区 + } + catch(Exception e) + { + // 异常处理 + } + 代码区如果有错误，就会返回所写异常的处理。*/ + mPlayer = new MediaPlayer(); + if (DataUtils.visibleInNoteDatabase(getContentResolver(), mNoteId, Notes.TYPE_NOTE)) { + showActionDialog(); + //弹出对话框 + playAlarmSound(); + //闹钟提示音激发 + } else { + finish(); + //完成闹钟动作 + } + } + + private boolean isScreenOn() { + //判断屏幕是否锁屏，调用系统函数判断，最后返回值是布尔类型 + PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); + return pm.isScreenOn(); + } + + private void playAlarmSound() { + //闹钟提示音激发 + Uri url = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_ALARM); + //调用系统的铃声管理URI，得到闹钟提示音 + int silentModeStreams = Settings.System.getInt(getContentResolver(), + Settings.System.MODE_RINGER_STREAMS_AFFECTED, 0); + + if ((silentModeStreams & (1 << AudioManager.STREAM_ALARM)) != 0) { + mPlayer.setAudioStreamType(silentModeStreams); + } else { + mPlayer.setAudioStreamType(AudioManager.STREAM_ALARM); + } + try { + mPlayer.setDataSource(this, url); + //方法：setDataSource(Context context, Uri uri) + //解释：无返回值，设置多媒体数据来源【根据 Uri】 + mPlayer.prepare(); + //准备同步 + mPlayer.setLooping(true); + //设置是否循环播放 + mPlayer.start(); + //开始播放 + } catch (IllegalArgumentException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + //e.printStackTrace()函数功能是抛出异常， 还将显示出更深的调用信息 + //System.out.println(e)，这个方法打印出异常，并且输出在哪里出现的异常 + } catch (SecurityException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (IllegalStateException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } catch (IOException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + } + } + + private void showActionDialog() { + AlertDialog.Builder dialog = new AlertDialog.Builder(this); + //AlertDialog的构造方法全部是Protected的 + //所以不能直接通过new一个AlertDialog来创建出一个AlertDialog。 + //要创建一个AlertDialog，就要用到AlertDialog.Builder中的create()方法 + //如这里的dialog就是新建了一个AlertDialog + dialog.setTitle(R.string.app_name); + //为对话框设置标题 + dialog.setMessage(mSnippet); + //为对话框设置内容 + dialog.setPositiveButton(R.string.notealert_ok, this); + //给对话框添加"Yes"按钮 + if (isScreenOn()) { + dialog.setNegativeButton(R.string.notealert_enter, this); + }//对话框添加"No"按钮 + dialog.show().setOnDismissListener(this); + } + + public void onClick(DialogInterface dialog, int which) { + switch (which) { + //用which来选择click后下一步的操作 + case DialogInterface.BUTTON_NEGATIVE: + //这是取消操作 + Intent intent = new Intent(this, NoteEditActivity.class); + //实现两个类间的数据传输 + intent.setAction(Intent.ACTION_VIEW); + //设置动作属性 + intent.putExtra(Intent.EXTRA_UID, mNoteId); + //实现key-value对 + //EXTRA_UID为key；mNoteId为键 + startActivity(intent); + //开始动作 + break; + default: + //这是确定操作 + break; + } + } + + public void onDismiss(DialogInterface dialog) { + //忽略 + stopAlarmSound(); + //停止闹钟声音 + finish(); + //完成该动作 + } + + private void stopAlarmSound() { + if (mPlayer != null) { + mPlayer.stop(); + //停止播放 + mPlayer.release(); + //释放MediaPlayer对象 + mPlayer = null; + } + } +} \ No newline at end of file diff --git a/src/UI/AlarmAlertActivity精读.doc b/src/UI/AlarmAlertActivity精读.doc new file mode 100644 index 0000000..f18a1bb Binary files /dev/null and b/src/UI/AlarmAlertActivity精读.doc differ diff --git a/src/UI/AlarmInitReceiver.txt b/src/UI/AlarmInitReceiver.txt new file mode 100644 index 0000000..353f4ae --- /dev/null +++ b/src/UI/AlarmInitReceiver.txt @@ -0,0 +1,56 @@ +package net.micode.notes.ui; + +import android.app.AlarmManager; +import android.app.PendingIntent; +import android.content.BroadcastReceiver; +import android.content.ContentUris; +import android.content.Context; +import android.content.Intent; +import android.database.Cursor; + +import net.micode.notes.data.Notes; +import net.micode.notes.data.Notes.NoteColumns; + + +public class AlarmInitReceiver extends BroadcastReceiver { + + private static final String [] PROJECTION = new String [] { + NoteColumns.ID, + NoteColumns.ALERTED_DATE + }; + //对数据库的操作，调用标签ID和闹钟时间 + private static final int COLUMN_ID = 0; + private static final int COLUMN_ALERTED_DATE = 1; + + @Override + public void onReceive(Context context, Intent intent) { + long currentDate = System.currentTimeMillis(); + //System.currentTimeMillis()产生一个当前的毫秒 + //这个毫秒其实就是自1970年1月1日0时起的毫秒数 + Cursor c = context.getContentResolver().query(Notes.CONTENT_NOTE_URI, + PROJECTION, + NoteColumns.ALERTED_DATE + ">? AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE, + new String[] { String.valueOf(currentDate) }, + //将long变量currentDate转化为字符串 + null); + //Cursor在这里的作用是通过查找数据库中的标签内容，找到和当前系统时间相等的标签 + + if (c != null) { + if (c.moveToFirst()) { + do { + long alertDate = c.getLong(COLUMN_ALERTED_DATE); + Intent sender = new Intent(context, AlarmReceiver.class); + sender.setData(ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, c.getLong(COLUMN_ID))); + PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, sender, 0); + AlarmManager alermManager = (AlarmManager) context + .getSystemService(Context.ALARM_SERVICE); + alermManager.set(AlarmManager.RTC_WAKEUP, alertDate, pendingIntent); + } while (c.moveToNext()); + } + c.close(); + } + //然而通过网上查找资料发现，对于闹钟机制的启动，通常需要上面的几个步骤 + //如新建Intent、PendingIntent以及AlarmManager等 + //这里就是根据数据库里的闹钟时间创建一个闹钟机制 + } +} \ No newline at end of file diff --git a/src/UI/AlarmInitReceiver精读.doc b/src/UI/AlarmInitReceiver精读.doc new file mode 100644 index 0000000..c215b80 Binary files /dev/null and b/src/UI/AlarmInitReceiver精读.doc differ diff --git a/src/UI/AlarmReceiver.txt b/src/UI/AlarmReceiver.txt new file mode 100644 index 0000000..f35ed7b --- /dev/null +++ b/src/UI/AlarmReceiver.txt @@ -0,0 +1,20 @@ +package net.micode.notes.ui; + +import android.content.BroadcastReceiver; +import android.content.Context; +import android.content.Intent; + +public class AlarmReceiver extends BroadcastReceiver { + @Override + public void onReceive(Context context, Intent intent) { + intent.setClass(context, AlarmAlertActivity.class); + //启动AlarmAlertActivity + intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); + //activity要存在于activity的栈中，而非activity的途径启动activity时必然不存在一个activity的栈 + //所以要新起一个栈装入启动的activity + context.startActivity(intent); + } +} +//这是实现alarm这个功能最接近用户层的包，基于上面的两个包， +//作用还需要深究但是对于setClass和addFlags的 + \ No newline at end of file diff --git a/src/UI/AlarmReceiver精读.doc b/src/UI/AlarmReceiver精读.doc new file mode 100644 index 0000000..560f62d Binary files /dev/null and b/src/UI/AlarmReceiver精读.doc differ diff --git a/src/UI/DateTimePicker.txt b/src/UI/DateTimePicker.txt new file mode 100644 index 0000000..e69de29 diff --git a/src/UI/DateTimePicker精读.doc b/src/UI/DateTimePicker精读.doc new file mode 100644 index 0000000..3312c29 Binary files /dev/null and b/src/UI/DateTimePicker精读.doc differ diff --git a/src/contact.txt b/src/contact.txt new file mode 100644 index 0000000..af9e28b --- /dev/null +++ b/src/contact.txt @@ -0,0 +1,69 @@ +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; +//change +public class Contact { //联系人 + private static HashMap sContactCache; + private static final String TAG = "Contact"; + + // 定义字符串CALLER_ID_SELECTION + private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL(" + ++ Phone.NUMBER + + ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'" + + " AND " + Data.RAW_CONTACT_ID + " IN " + + "(SELECT raw_contact_id " + + " FROM phone_lookup" + + " WHERE min_match = '+')"; + + // 获取联系人 + public static String getContact(Context context, String phoneNumber) { + if(sContactCache == null) { + sContactCache = new HashMap(); + } + + // 查找HashMap中是否已有phoneNumber信息 + if(sContactCache.containsKey(phoneNumber)) { + return sContactCache.get(phoneNumber); + } + + String selection = CALLER_ID_SELECTION.replace("+", + PhoneNumberUtils.toCallerIDMinMatch(phoneNumber)); + // 查找数据库中phoneNumber的信息 + Cursor cursor = context.getContentResolver().query( + Data.CONTENT_URI, + new String [] { Phone.DISPLAY_NAME }, + selection, + new String[] { phoneNumber }, + null); + + // 判定查询结果 + // moveToFirst()返回第一条 + if (cursor != null && cursor.moveToFirst()) { + try { + // 找到相关信息 + String name = cursor.getString(0); + sContactCache.put(phoneNumber, name); + return name; + // 异常 + } catch (IndexOutOfBoundsException e) { + Log.e(TAG, " Cursor get string error " + e.toString()); + return null; + } finally { + cursor.close(); + } + // 未找到相关信息 + } else { + Log.d(TAG, "No contact matched with number:" + phoneNumber); + return null; + } + } +} \ No newline at end of file diff --git a/src/notes.txt b/src/notes.txt new file mode 100644 index 0000000..6a486f9 --- /dev/null +++ b/src/notes.txt @@ -0,0 +1,303 @@ +package net.micode.notes.data; + +import android.content.ContentUris; +import android.net.Uri; +// Notes 类中定义了很多常量，这些常量大多是int型和string型 +public class Notes { + public static final String AUTHORITY = "micode_notes"; + public static final String TAG = "Notes"; + + //以下三个常量对NoteColumns.TYPE的值进行设置时会用到 + public static final int TYPE_NOTE = 0; + public static final int TYPE_FOLDER = 1; + public static final int TYPE_SYSTEM = 2; + + /** + * Following IDs are system folders' identifiers + * {@link Notes#ID_ROOT_FOLDER } is default folder + * {@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");//定义查询便签和文件夹的指针。 + +// public static final Uri my_URI = ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI , 10); + + /** + * Uri to query data + */ + public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + + +AUTHORITY + "/data");//定义查找数据的指针。 + + // 定义NoteColumns的常量,用于后面创建数据库的表头 + public interface NoteColumns { + /** + * The unique ID for a row + *

Type: INTEGER (long)

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

Type: INTEGER (long)

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

Type: INTEGER (long)

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

Type: INTEGER (long)

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

Type: INTEGER (long)

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

Type: TEXT

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

Type: INTEGER (long)

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

Type: INTEGER (long)

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

Type: INTEGER (long)

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

Type: INTEGER

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

Type: INTEGER (long)

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

Type: INTEGER

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

Type: INTEGER (long)

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

Type: INTEGER

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

Type : INTEGER

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

Type : TEXT

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

Type : INTEGER (long)

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

Type: INTEGER (long)

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

Type: Text

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

Type: INTEGER (long)

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

Type: INTEGER (long)

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

Type: INTEGER (long)

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

Type: TEXT

+ */ + public static final String CONTENT = "content"; + + + /** + * Generic data column, the meaning is {@link #MIMETYPE} specific, +used for + * 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"; + }//主要是定义存储便签内容数据的 + public static final class TextNote implements DataColumns { + /** + * Mode to indicate the text in check list mode or not + *

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

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

Type: INTEGER (long)

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

Type: TEXT

+ */ + public static final String PHONE_NUMBER = DATA3; + + public static final String CONTENT_TYPE = + +"vnd.android.cursor.dir/call_note"; + + public static final String CONTENT_ITEM_TYPE = + +"vnd.android.cursor.item/call_note"; + + public static final Uri CONTENT_URI = Uri.parse("content://" + + +AUTHORITY + "/call_note"); + }//电话内容的数据结构 +} \ No newline at end of file diff --git a/src/充实文本编辑功能.txt b/src/充实文本编辑功能.txt new file mode 100644 index 0000000..8b8a521 --- /dev/null +++ b/src/充实文本编辑功能.txt @@ -0,0 +1,142 @@ +在编辑主界面note_edit.xml中添加布局，添加各种装饰文本的按钮 + + + + +