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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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/**
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* 表示当前正在编辑的笔记的工作类
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* 封装了笔记的加载、保存和属性管理逻辑
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*/
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public class WorkingNote {
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// 关联的Note对象（数据模型）
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private Note mNote;
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// 笔记ID（数据库主键）
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private long mNoteId;
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// 笔记文本内容
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private String mContent;
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// 笔记模式（普通模式/清单模式）
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private int mMode;
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// 提醒时间戳
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private long mAlertDate;
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// 最后修改时间戳
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private long mModifiedDate;
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// 背景颜色ID
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private int mBgColorId;
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// 关联的小部件ID
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private int mWidgetId;
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// 小部件类型
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private int mWidgetType;
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// 所属文件夹ID
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private long mFolderId;
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// 上下文对象
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private Context mContext;
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private static final String TAG = "WorkingNote";
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// 删除标记
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private boolean mIsDeleted;
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// 笔记设置变更监听器
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private NoteSettingChangedListener mNoteSettingStatusListener;
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// 笔记数据表查询字段
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public static final String[] DATA_PROJECTION = new String[] {
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DataColumns.ID, // 0: 数据项ID
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DataColumns.CONTENT, // 1: 内容
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DataColumns.MIME_TYPE, // 2: MIME类型
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DataColumns.DATA1, // 3: 扩展数据1（模式）
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DataColumns.DATA2, // 4: 扩展数据2
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DataColumns.DATA3, // 5: 扩展数据3
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DataColumns.DATA4, // 6: 扩展数据4
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};
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// 笔记表查询字段
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public static final String[] NOTE_PROJECTION = new String[] {
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NoteColumns.PARENT_ID, // 0: 父文件夹ID
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NoteColumns.ALERTED_DATE, // 1: 提醒时间
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NoteColumns.BG_COLOR_ID, // 2: 背景颜色ID
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NoteColumns.WIDGET_ID, // 3: 小部件ID
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NoteColumns.WIDGET_TYPE, // 4: 小部件类型
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NoteColumns.MODIFIED_DATE // 5: 修改时间
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};
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// 数据表字段索引常量
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private static final int DATA_ID_COLUMN = 0;
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private static final int DATA_CONTENT_COLUMN = 1;
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private static final int DATA_MIME_TYPE_COLUMN = 2;
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private static final int DATA_MODE_COLUMN = 3; // DATA1用于存储模式
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// 笔记表字段索引常量
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private static final int NOTE_PARENT_ID_COLUMN = 0;
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private static final int NOTE_ALERTED_DATE_COLUMN = 1;
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private static final int NOTE_BG_COLOR_ID_COLUMN = 2;
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private static final int NOTE_WIDGET_ID_COLUMN = 3;
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private static final int NOTE_WIDGET_TYPE_COLUMN = 4;
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private static final int NOTE_MODIFIED_DATE_COLUMN = 5;
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/**
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* 创建新笔记的构造函数
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* @param context 上下文对象
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* @param folderId 所属文件夹ID
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*/
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private WorkingNote(Context context, long folderId) {
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mContext = context;
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mAlertDate = 0; // 默认无提醒
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mModifiedDate = System.currentTimeMillis(); // 使用当前时间
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mFolderId = folderId;
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mNote = new Note(); // 新建Note对象
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mNoteId = 0; // 新笔记ID为0（尚未保存）
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mIsDeleted = false;
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mMode = 0; // 默认普通模式
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mWidgetType = Notes.TYPE_WIDGET_INVALIDE; // 默认无效小部件类型
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}
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/**
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* 加载现有笔记的构造函数
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* @param context 上下文对象
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* @param noteId 笔记ID
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* @param folderId 所属文件夹ID
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*/
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private WorkingNote(Context context, long noteId, long folderId) {
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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(); // 从数据库加载笔记数据
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}
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/**
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* 从数据库加载笔记元数据
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*/
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private void loadNote() {
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// 查询笔记表
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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);
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if (cursor != null) {
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if (cursor.moveToFirst()) {
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// 提取笔记元数据
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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);
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}
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loadNoteData(); // 继续加载笔记内容数据
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}
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/**
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* 加载笔记内容数据
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*/
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private void loadNoteData() {
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// 查询数据表（笔记内容）
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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 {
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String type = cursor.getString(DATA_MIME_TYPE_COLUMN);
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if (DataConstants.NOTE.equals(type)) {
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// 普通笔记内容
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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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// 通话记录笔记
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mNote.setCallDataId(cursor.getLong(DATA_ID_COLUMN));
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} else {
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Log.d(TAG, "Wrong note type with type:" + type);
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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);
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}
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}
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/**
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* 创建新的空白笔记
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* @param context 上下文
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* @param folderId 文件夹ID
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* @param widgetId 小部件ID
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* @param widgetType 小部件类型
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* @param defaultBgColorId 默认背景颜色ID
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* @return 新建的WorkingNote实例
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*/
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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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/**
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* 加载现有笔记
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* @param context 上下文
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* @param id 笔记ID
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* @return 加载的WorkingNote实例
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*/
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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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/**
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* 保存笔记（同步方法）
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* @return 保存是否成功
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*/
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public synchronized boolean saveNote() {
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if (isWorthSaving()) {
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// 新笔记需要先分配ID
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if (!existInDatabase()) {
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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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// 同步笔记数据到数据库
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mNote.syncNote(mContext, mNoteId);
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// 如果有关联小部件，通知更新
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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; // 不需要保存
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}
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}
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/**
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* 检查笔记是否已存在于数据库
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* @return 是否存在
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*/
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public boolean existInDatabase() {
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return mNoteId > 0;
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}
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/**
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* 判断笔记是否需要保存
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* @return 是否需要保存
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*/
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private boolean isWorthSaving() {
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if (mIsDeleted || // 已标记删除
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(!existInDatabase() && TextUtils.isEmpty(mContent)) || // 新笔记且内容为空
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(existInDatabase() && !mNote.isLocalModified())) { // 已存在但未修改
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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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/**
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* 设置笔记变更监听器
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* @param l 监听器实例
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*/
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public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) {
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mNoteSettingStatusListener = l;
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}
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/**
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* 设置提醒时间
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* @param date 提醒时间戳
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* @param set 是否设置提醒
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*/
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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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/**
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* 标记笔记删除状态
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* @param mark 是否删除
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*/
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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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/**
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* 设置背景颜色ID
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* @param id 颜色ID
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*/
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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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/**
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* 设置清单模式
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* @param mode 模式值
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*/
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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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/**
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* 设置小部件类型
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* @param type 类型值
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*/
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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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/**
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* 设置小部件ID
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* @param id 小部件ID
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*/
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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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/**
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* 设置笔记文本内容
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* @param text 文本内容
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*/
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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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/**
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* 将笔记转换为通话记录笔记
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* @param phoneNumber 电话号码
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* @param callDate 通话时间
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*/
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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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// 移动到通话记录文件夹
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mNote.setNoteValue(NoteColumns.PARENT_ID, String.valueOf(Notes.ID_CALL_RECORD_FOLDER));
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}
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/**
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* 检查是否有提醒设置
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* @return 是否有提醒
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*/
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public boolean hasClockAlert() {
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return (mAlertDate > 0 ? true : false);
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}
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// 以下为属性访问方法 //
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public String getContent() {
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return mContent;
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}
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public long getAlertDate() {
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return mAlertDate;
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}
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public long getModifiedDate() {
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return mModifiedDate;
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}
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public int getBgColorResId() {
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return NoteBgResources.getNoteBgResource(mBgColorId);
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}
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public int getBgColorId() {
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return mBgColorId;
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}
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public int getTitleBgResId() {
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return NoteBgResources.getNoteTitleBgResource(mBgColorId);
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}
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public int getCheckListMode() {
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return mMode;
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}
|
|
|
|
|
|
public long getNoteId() {
|
|
|
return mNoteId;
|
|
|
}
|
|
|
|
|
|
public long getFolderId() {
|
|
|
return mFolderId;
|
|
|
}
|
|
|
|
|
|
public int getWidgetId() {
|
|
|
return mWidgetId;
|
|
|
}
|
|
|
|
|
|
public int getWidgetType() {
|
|
|
return mWidgetType;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* 笔记设置变更监听器接口
|
|
|
*/
|
|
|
public interface NoteSettingChangedListener {
|
|
|
/**
|
|
|
* 背景颜色变更回调
|
|
|
*/
|
|
|
void onBackgroundColorChanged();
|
|
|
|
|
|
/**
|
|
|
* 提醒设置变更回调
|
|
|
* @param date 提醒时间
|
|
|
* @param set 是否设置
|
|
|
*/
|
|
|
void onClockAlertChanged(long date, boolean set);
|
|
|
|
|
|
/**
|
|
|
* 小部件变更回调
|
|
|
*/
|
|
|
void onWidgetChanged();
|
|
|
|
|
|
/**
|
|
|
* 清单模式变更回调
|
|
|
* @param oldMode 旧模式
|
|
|
* @param newMode 新模式
|
|
|
*/
|
|
|
void onCheckListModeChanged(int oldMode, int newMode);
|
|
|
}
|
|
|
}
|
