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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 {// 表示工作便签
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// Note for the working note
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private Note mNote; // 表示工作便签
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// Note Id
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private long mNoteId; // 便签id
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// Note content
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private String mContent; // 便签内容
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// Note mode
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private int mMode; // 便签模式
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private long mAlertDate; // 提醒日期
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private long mModifiedDate; // 最近修改日期
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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; // 所在文件夹id
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private Context mContext; // 表示上下文
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private static final String TAG = "WorkingNote"; // 设置TAG
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private boolean mIsDeleted; // 表示是否被删除
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private NoteSettingChangedListener mNoteSettingStatusListener; // 表示便签设置状态
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public static final String[] DATA_PROJECTION = new String[] { // 用于指定需要从数据库查询的数据列
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DataColumns.ID,
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DataColumns.CONTENT,
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DataColumns.MIME_TYPE,
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DataColumns.DATA1,
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DataColumns.DATA2,
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DataColumns.DATA3,
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DataColumns.DATA4,
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};
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public static final String[] NOTE_PROJECTION = new String[] {
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NoteColumns.PARENT_ID,
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NoteColumns.ALERTED_DATE,
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NoteColumns.BG_COLOR_ID,
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NoteColumns.WIDGET_ID,
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NoteColumns.WIDGET_TYPE,
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NoteColumns.MODIFIED_DATE
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};
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private static final int DATA_ID_COLUMN = 0; // 表示查询数据的id列
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private static final int DATA_CONTENT_COLUMN = 1; // 表示查询数据的内容列
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private static final int DATA_MIME_TYPE_COLUMN = 2; // 表示查询数据的MIME类型列
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private static final int DATA_MODE_COLUMN = 3; // 表示查询数据的模式列
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private static final int NOTE_PARENT_ID_COLUMN = 0; // 表示查询便签的父文件夹id列
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private static final int NOTE_ALERTED_DATE_COLUMN = 1; // 表示便签的提醒日期列
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private static final int NOTE_BG_COLOR_ID_COLUMN = 2; // 表示便签的背景颜色id列
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private static final int NOTE_WIDGET_ID_COLUMN = 3; // 表示便签小组件id列
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private static final int NOTE_WIDGET_TYPE_COLUMN = 4; // 表示便签小组件类型列
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private static final int NOTE_MODIFIED_DATE_COLUMN = 5; // 表示便签最后修改日期列
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// New note construct
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private WorkingNote(Context context, long folderId) { // 新建便签的结构
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mContext = context;
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mAlertDate = 0;
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mModifiedDate = System.currentTimeMillis();
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mFolderId = folderId;
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mNote = new Note();
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mNoteId = 0;
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mIsDeleted = false;
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mMode = 0;
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mWidgetType = Notes.TYPE_WIDGET_INVALIDE;
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}
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// Existing note construct
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private WorkingNote(Context context, long noteId, long folderId) { // 存在的的便签结构
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mContext = context;
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mNoteId = noteId;
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mFolderId = folderId;
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mIsDeleted = false;
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mNote = new Note();
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loadNote();
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}
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private void loadNote() { // 查询并加载当前便签的详细信息
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Cursor cursor = mContext.getContentResolver().query(
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ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, mNoteId), NOTE_PROJECTION, null,
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null, null); // 返回一个Cursor对象
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if (cursor != null) {
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if (cursor.moveToFirst()) { // 将查询结构的列值返回当前便签
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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 {
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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); // 抛出异常，表示未找到指定id的便签
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}
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loadNoteData(); // 加载便签内容和其他数据
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}
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private void loadNoteData() { // 加载便签内容数据
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Cursor cursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, DATA_PROJECTION,
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DataColumns.NOTE_ID + "=?", new String[] { // 获取与便签id相对应的所有数据
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String.valueOf(mNoteId)
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}, null); // 遍历Cursor对象所有数据
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if (cursor != null) {
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if (cursor.moveToFirst()) {
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do {
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String type = cursor.getString(DATA_MIME_TYPE_COLUMN);
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if (DataConstants.NOTE.equals(type)) { // 类型相对应则设置WorkingNote对象成员变量
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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)); // 设置为Notes对象的成员变量
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} else {
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Log.d(TAG, "Wrong note type with type:" + type); // 抛出异常，错误的数据类型
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}
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} while (cursor.moveToNext());
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}
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cursor.close();
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} else {
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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); // 抛出异常，无查询结果
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}
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}
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public static WorkingNote createEmptyNote(Context context, long folderId, int widgetId, // 上下文对象、文件夹id、组件id、组件类型、默认背景颜色id
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int widgetType, int defaultBgColorId) { // 创建空白便签
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WorkingNote note = new WorkingNote(context, folderId); // 用上下文对象、父文件夹id创建WorkingNote
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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; // 设置变量并返回
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}
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public static WorkingNote load(Context context, long id) { // 用上下文对象和id创建新的WorkingNote对象
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return new WorkingNote(context, id, 0);
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}
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public synchronized boolean saveNote() { // 保存便签
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if (isWorthSaving()) { // 判断是否保存
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if (!existInDatabase()) { // 是否存在与数据库
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if ((mNoteId = Note.getNewNoteId(mContext, mFolderId)) == 0) { // 不存在则获取id
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Log.e(TAG, "Create new note fail with id:" + mNoteId); // 日志记录
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return false;
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}
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}
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mNote.syncNote(mContext, mNoteId); // 同步到数据库中
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/**
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* Update widget content if there exist any widget of this note
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*/
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if (mWidgetId != AppWidgetManager.INVALID_APPWIDGET_ID // 诺该便签与组件关联
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&& mWidgetType != Notes.TYPE_WIDGET_INVALIDE
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&& mNoteSettingStatusListener != null) {
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mNoteSettingStatusListener.onWidgetChanged(); // 更新组件
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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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public boolean existInDatabase() {
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return mNoteId > 0;
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} // 判断便签是否存在数据库
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private boolean isWorthSaving() {
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if (mIsDeleted || (!existInDatabase() && TextUtils.isEmpty(mContent)) // 不存在于数据库且为空，或者没本地修改
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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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} // 判断是否值得保存
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public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) {
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mNoteSettingStatusListener = l;
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} // 设置便签状态监视器
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public void setAlertDate(long date, boolean set) { // 设置提醒
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if (date != mAlertDate) { // 判断传入是否相同
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mAlertDate = date; // 更新
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mNote.setNoteValue(NoteColumns.ALERTED_DATE, String.valueOf(mAlertDate)); // 更新数据库
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}
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if (mNoteSettingStatusListener != null) {
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mNoteSettingStatusListener.onClockAlertChanged(date, set); // 调用监听器
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}
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}
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public void markDeleted(boolean mark) { // 标记删除标志
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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(); // 已删除则更新组件
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}
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}
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public void setBgColorId(int id) { // 设置背景颜色
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if (id != mBgColorId) { // 检查
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mBgColorId = id; // 更新设置
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if (mNoteSettingStatusListener != null) {
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mNoteSettingStatusListener.onBackgroundColorChanged(); // 通知监听器
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}
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mNote.setNoteValue(NoteColumns.BG_COLOR_ID, String.valueOf(id)); // 更新数据库
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}
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}
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public void setCheckListMode(int mode) { // 设置便签的检查清单模式
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if (mMode != mode) { // 检查
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if (mNoteSettingStatusListener != null) {
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mNoteSettingStatusListener.onCheckListModeChanged(mMode, mode); // 通知
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}
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mMode = mode;
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mNote.setTextData(TextNote.MODE, String.valueOf(mMode)); // 更新数据库
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}
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}
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public void setWidgetType(int type) { // 设置组件类型
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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)); // 更新数据库
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}
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}
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public void setWidgetId(int id) { // 设置组件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)); // 更新数据库
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}
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}
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public void setWorkingText(String text) { // 设置文本
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if (!TextUtils.equals(mContent, text)) {
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mContent = text;
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mNote.setTextData(DataColumns.CONTENT, mContent); // 更新
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}
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}
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public void convertToCallNote(String phoneNumber, long callDate) { // 转换为呼叫类型便签
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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)); // 修改父文件夹id为呼叫记录id
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}
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public boolean hasClockAlert() {
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return (mAlertDate > 0 ? true : false);
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} // 是否设置提醒数据
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public String getContent() {
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return mContent;
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} // 获取内容
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public long getAlertDate() {
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return mAlertDate;
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} // 获取提醒时间
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public long getModifiedDate() {
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return mModifiedDate;
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} // 获取最后修改时间
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public int getBgColorResId() {
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return NoteBgResources.getNoteBgResource(mBgColorId);
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} // 获取背景资源id
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public int getBgColorId() {
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return mBgColorId;
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} // 获取背景颜色id
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public int getTitleBgResId() {
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return NoteBgResources.getNoteTitleBgResource(mBgColorId);
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} // 获取标题栏背景颜色资源id
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public int getCheckListMode() {
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return mMode;
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} // 获取检查清单模式
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public long getNoteId() {
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return mNoteId;
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} // 获取便签id
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public long getFolderId() {
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return mFolderId;
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} // 获取父文件夹id
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public int getWidgetId() {
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return mWidgetId;
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} // 获取组件id
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public int getWidgetType() {
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return mWidgetType;
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} // 获取组件类型
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public interface NoteSettingChangedListener { // 接口
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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(); // 便签背景颜色变化时启动
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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); // 设置提醒时间时启动
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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(); // 创建组件时启动
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/**
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* Call when switch between check list mode and normal mode
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*
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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); // 清单模式转为笔记模式时启动
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}
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}
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