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/*
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* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package net.micode.notes.model;
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import android.appwidget.AppWidgetManager;
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import android.content.ContentUris;
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import android.content.Context;
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import android.database.Cursor;
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import android.text.TextUtils;
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import android.util.Log;
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import net.micode.notes.data.Notes;
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import net.micode.notes.data.Notes.CallNote;
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import net.micode.notes.data.Notes.DataColumns;
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import net.micode.notes.data.Notes.DataConstants;
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import net.micode.notes.data.Notes.NoteColumns;
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import net.micode.notes.data.Notes.TextNote;
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import net.micode.notes.tool.ResourceParser.NoteBgResources;
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public class WorkingNote {
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// Note for the working note（工作笔记类)
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private Note mNote;// 笔记
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// Note Id/笔记ID
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private long mNoteId;
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// Note content笔记内容
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private String mContent;
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// Note mode笔记模式
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private int mMode;
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private long mAlertDate;// 提醒日期
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private long mModifiedDate;// 修改日期
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private int mBgColorId;// 背景颜色ID
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private int mWidgetId;// 小部件ID
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private int mWidgetType;// 小部件类型
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private long mFolderId;// 文件夹ID
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private Context mContext;// 上下文
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private static final String TAG = "WorkingNote";// 标签
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private boolean mIsDeleted;// 是否已删除
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private NoteSettingChangedListener mNoteSettingStatusListener;// 笔记设置改变监听器
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public static final String[] DATA_PROJECTION = new String[] {// 查询数据时需要返回的列名数组
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DataColumns.ID,// ID列
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DataColumns.CONTENT, // 内容列
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DataColumns.MIME_TYPE, // MIME类型列
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DataColumns.DATA1, // 数据列1
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DataColumns.DATA2,// 数据列2
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DataColumns.DATA3, // 数据列3
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DataColumns.DATA4,// 数据列4
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};
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public static final String[] NOTE_PROJECTION = new String[] {
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NoteColumns.PARENT_ID,// 父ID列
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NoteColumns.ALERTED_DATE,// 提醒日期列
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NoteColumns.BG_COLOR_ID,// 背景颜色ID列
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NoteColumns.WIDGET_ID,// 小部件ID列
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NoteColumns.WIDGET_TYPE,// 小部件类型列
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NoteColumns.MODIFIED_DATE // 修改日期列
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};
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private static final int DATA_ID_COLUMN = 0;// 数据表中数据ID列的索引，常量整数值为0
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private static final int DATA_CONTENT_COLUMN = 1; // 数据表中数据内容列的索引，常量整数值为1
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private static final int DATA_MIME_TYPE_COLUMN = 2;// 数据表中数据MIME类型列的索引，常量整数值为2
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private static final int DATA_MODE_COLUMN = 3; // 数据表中数据模式列的索引，常量整数值为3
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private static final int NOTE_PARENT_ID_COLUMN = 0; // 笔记表中笔记父ID列的索引，常量整数值为0
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private static final int NOTE_ALERTED_DATE_COLUMN = 1;// 笔记表中笔记提醒日期列的索引，常量整数值为1
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private static final int NOTE_BG_COLOR_ID_COLUMN = 2;// 笔记表中笔记背景色ID列的索引，常量整数值为2
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private static final int NOTE_WIDGET_ID_COLUMN = 3; // 笔记表中笔记小部件ID列的索引，常量整数值为3
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private static final int NOTE_WIDGET_TYPE_COLUMN = 4;// 笔记表中笔记小部件类型列的索引，常量整数值为4
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private static final int NOTE_MODIFIED_DATE_COLUMN = 5;// 笔记表中笔记修改日期列的索引，常量整数值为5
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// New note construct创建新的笔记构造函数，传入上下文和文件夹ID
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private WorkingNote(Context context, long folderId) {
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mContext = context;// 初始化上下文
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mAlertDate = 0;// 提醒日期设置为0
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mModifiedDate = System.currentTimeMillis(); // 修改日期设置为当前时间
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mFolderId = folderId;// 设置文件夹ID
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mNote = new Note(); // 创建一个新的Note对象
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mNoteId = 0;// 设置笔记ID为0
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mIsDeleted = false;// 设置是否已删除为false
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mMode = 0;// 设置工作模式为0
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mWidgetType = Notes.TYPE_WIDGET_INVALIDE;// 设置小部件类型为无效类型
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}
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// Existing note construct加载现有笔记的构造函数，传入上下文、笔记ID和文件夹ID
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private WorkingNote(Context context, long noteId, long folderId) {
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mContext = context; // 初始化上下文
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mNoteId = noteId;// 设置笔记ID
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mFolderId = folderId;---------------------------// 设置文件夹ID
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mIsDeleted = false;// 设置是否已删除为false
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mNote = new Note(); // 创建一个新的Note对象
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loadNote();// 加载现有笔记
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}
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private void loadNote() {// 通过笔记ID查询笔记的游标
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Cursor cursor = mContext.getContentResolver().query(// 通过笔记ID查询笔记的游标
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ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null,
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null, null);
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if (cursor != null) {
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if (cursor.moveToFirst()) {// 从游标中获取笔记的相关信息
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mFolderId = cursor.getLong(NOTE_PARENT_ID_COLUMN);
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mBgColorId = cursor.getInt(NOTE_BG_COLOR_ID_COLUMN);
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mWidgetId = cursor.getInt(NOTE_WIDGET_ID_COLUMN);
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mWidgetType = cursor.getInt(NOTE_WIDGET_TYPE_COLUMN);
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mAlertDate = cursor.getLong(NOTE_ALERTED_DATE_COLUMN);
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mModifiedDate = cursor.getLong(NOTE_MODIFIED_DATE_COLUMN);
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}
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cursor.close();
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} else {// 如果找不到笔记，则记录错误日志并抛出异常
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Log.e(TAG, "No note with id:" + mNoteId);
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throw new IllegalArgumentException("Unable to find note with id " + mNoteId);
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}// 加载笔记的数据
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loadNoteData();
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}
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private void loadNoteData() { // 通过笔记ID查询笔记数据的游标
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Cursor cursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, DATA_PROJECTION,
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DataColumns.NOTE_ID + "=?", new String[] {
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String.valueOf(mNoteId)
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}, null);
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if (cursor != null) {
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if (cursor.moveToFirst()) {
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do {// 获取笔记数据的类型
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String type = cursor.getString(DATA_MIME_TYPE_COLUMN);
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if (DataConstants.NOTE.equals(type)) {// 如果是笔记文本数据，则获取内容和模式，并设置笔记的文本数据ID
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mContent = cursor.getString(DATA_CONTENT_COLUMN);
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mMode = cursor.getInt(DATA_MODE_COLUMN);
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mNote.setTextDataId(cursor.getLong(DATA_ID_COLUMN));
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} else if (DataConstants.CALL_NOTE.equals(type)) {
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mNote.setCallDataId(cursor.getLong(DATA_ID_COLUMN));// 如果是电话笔记数据，则设置笔记的电话数据ID
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} else {
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Log.d(TAG, "Wrong note type with type:" + type);
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}// 如果是其他类型的笔记数据，则记录错误日志
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} while (cursor.moveToNext());
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}
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cursor.close();
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} else { // 如果找不到笔记数据，则记录错误日志并抛出异常
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Log.e(TAG, "No data with id:" + mNoteId);
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throw new IllegalArgumentException("Unable to find note's data with id " + mNoteId);
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}
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}
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// 创建一个空笔记
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public static WorkingNote createEmptyNote(Context context, long folderId, int widgetId,
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int widgetType, int defaultBgColorId) {
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WorkingNote note = new WorkingNote(context, folderId);
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note.setBgColorId(defaultBgColorId);
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note.setWidgetId(widgetId);
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note.setWidgetType(widgetType);
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return note;
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}
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// 加载笔记
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public static WorkingNote load(Context context, long id) {
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return new WorkingNote(context, id, 0);
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}
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// 保存笔记
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public synchronized boolean saveNote() {
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if (isWorthSaving()) {
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if (!existInDatabase()) {// 如果笔记还不存在于数据库中，则为其生成一个新的ID
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if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) {
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Log.e(TAG, "Create new note fail with id:" + mNoteId);
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return false;
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}
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}
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// 将笔记同步到数据库中
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mNote.syncNote(mContext, mNoteId);
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/**
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* Update widget content if there exist any widget of this note如果笔记存在小部件，则更新小部件的内容
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*/
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if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
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&& mWidgetType != Notes.TYPE_WIDGET_INVALIDE
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&& mNoteSettingStatusListener != null) {
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mNoteSettingStatusListener.onWidgetChanged();
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}
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return true;
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} else {
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return false;
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}
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}
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// 判断笔记是否已经存在于数据库中
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public boolean existInDatabase() {
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return mNoteId > 0;
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}
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// 判断笔记是否值得保存
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private boolean isWorthSaving() {
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if (mIsDeleted || (!existInDatabase() && TextUtils.isEmpty(mContent))
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|| (existInDatabase() && !mNote.isLocalModified())) {
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return false;
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} else {
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return true;
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}
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}
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// 设置笔记设置状态改变的监听器
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public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) {
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mNoteSettingStatusListener = l;
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}
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// 设置提醒日期
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public void setAlertDate(long date, boolean set) {
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if (date != mAlertDate) {
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mAlertDate = date;
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mNote.setNoteValue(NoteColumns.ALERTED_DATE, String.valueOf(mAlertDate));
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}
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if (mNoteSettingStatusListener != null) {
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mNoteSettingStatusListener.onClockAlertChanged(date, set);
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}
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}
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// 标记笔记是否被删除
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public void markDeleted(boolean mark) {
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mIsDeleted = mark;
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if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID
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&& mWidgetType != Notes.TYPE_WIDGET_INVALIDE && mNoteSettingStatusListener != null) {
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mNoteSettingStatusListener.onWidgetChanged();
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}
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}
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// 设置笔记的背景颜色
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public void setBgColorId(int id) {
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if (id != mBgColorId) {
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mBgColorId = id;
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if (mNoteSettingStatusListener != null) {
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mNoteSettingStatusListener.onBackgroundColorChanged();
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}
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mNote.setNoteValue(NoteColumns.BG_COLOR_ID, String.valueOf(id));
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}
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}
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// 设置笔记的检查列表模式
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public void setCheckListMode(int mode) {
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if (mMode != mode) {
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if (mNoteSettingStatusListener != null) {
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mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode);
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}
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mMode = mode;
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mNote.setTextData(TextNote.MODE, String.valueOf(mMode));
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}
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}
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// 设置笔记的小部件类型
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public void setWidgetType(int type) {
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if (type != mWidgetType) {
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mWidgetType = type;
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mNote.setNoteValue(NoteColumns.WIDGET_TYPE, String.valueOf(mWidgetType));
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}
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}
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// 设置笔记的小部件ID
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public void setWidgetId(int id) {
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if (id != mWidgetId) {
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mWidgetId = id;
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mNote.setNoteValue(NoteColumns.WIDGET_ID, String.valueOf(mWidgetId));
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}
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}
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//设置文本内容
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public void setWorkingText(String text) {
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if (!TextUtils.equals(mContent, text)) {
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mContent = text;
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mNote.setTextData(DataColumns.CONTENT, mContent);
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}
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}
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//这是一个将笔记转换为电话记录的方法。它包含电话号码和通话日期，并更新笔记对象的值
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public void convertToCallNote(String phoneNumber, long callDate) {
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mNote.setCallData(CallNote.CALL_DATE, String.valueOf(callDate));
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mNote.setCallData(CallNote.PHONE_NUMBER, phoneNumber);
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mNote.setNoteValue(NoteColumns.PARENT_ID, String.valueOf(Notes.ID_CALL_RECORD_FOLDER));
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}
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//指示笔记是否有闹钟提醒
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public boolean hasClockAlert() {
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return (mAlertDate > 0 ? true : false);
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}
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// 返回笔记的文本内容
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public String getContent() {
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return mContent;
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}
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// 返回笔记的警报日期
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public long getAlertDate() {
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return mAlertDate;
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}
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// 返回笔记的修改日期
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public long getModifiedDate() {
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return mModifiedDate;
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}
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// 返回笔记的背景颜色资源ID
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public int getBgColorResId() {
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return NoteBgResources.getNoteBgResource(mBgColorId);
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}
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// 返回笔记的背景颜色ID
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public int getBgColorId() {
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return mBgColorId;
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}
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// 返回笔记标题的背景颜色资源ID
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public int getTitleBgResId() {
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return NoteBgResources.getNoteTitleBgResource(mBgColorId);
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}
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// 返回笔记的检查清单模式
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public int getCheckListMode() {
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return mMode;
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}
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// 返回笔记的ID
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public long getNoteId() {
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return mNoteId;
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}
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// 返回笔记所在文件夹的ID
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public long getFolderId() {
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return mFolderId;
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}
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// 返回笔记所属的小部件ID
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public int getWidgetId() {
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return mWidgetId;
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}
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// 返回笔记所属的小部件类型
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public int getWidgetType() {
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return mWidgetType;
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}
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public interface NoteSettingChangedListener {
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/**
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* Called when the background color of current note has just changed
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*/
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void onBackgroundColorChanged();
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/**
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* Called when user set clock
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*/
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void onClockAlertChanged(long date, boolean set);
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/**
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* Call when user create note from widget
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*/
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void onWidgetChanged();
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/**
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* Call when switch between check list mode and normal mode
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* @param oldMode is previous mode before change
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* @param newMode is new mode
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*/
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void onCheckListModeChanged(int oldMode, int newMode);
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}
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}
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