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/*当前活动便签项
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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;//在model包中
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import android.appwidget.AppWidgetManager;//需要调用的其他类
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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 {/*声明WorkingNote类,创建小米便签的主要类，
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包括创建空便签，保存便签，加载小米便签内容，和设置小米便签的一些小部件之类的操作*/
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// Note for the working note
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private Note mNote;
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// Note Id
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private long mNoteId;
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// Note content
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private String mContent;
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// Note mode
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private int mMode;
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private long mAlertDate;
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private long mModifiedDate;
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private int mBgColorId;
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private int mWidgetId;
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private int mWidgetType;
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private long mFolderId;
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private Context mContext;
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private static final String TAG = "WorkingNote";
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private boolean mIsDeleted;
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private NoteSettingChangedListener mNoteSettingStatusListener;
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public static final String[] DATA_PROJECTION = new String[] {/*声明NOTE_PROJECTION字符串数组，
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用于存储数据信息。*/
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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[] {//保存便签属性信息的string数组
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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;//以下定义的是上述两个列表中各元素的索引
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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;
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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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// New note construct
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private WorkingNote(Context context, long folderId) {//初始化WorkingNote类的内部数据变量
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mContext = context;
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mAlertDate = 0;
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mModifiedDate = System.currentTimeMillis();//获取系统当前时间的方法，返回当前时间
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mFolderId = folderId;
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mNote = new Note();//加载一个已存在的便签
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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;//默认是不可见
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}
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// Existing note construct
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private WorkingNote(Context context, long noteId, long folderId) {//载入便签
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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() {//加载已有的便签
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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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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();
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}
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private void loadNoteData() {//加载便签数据
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Cursor cursor = mContext.getContentResolver().query(Notes.CONTENT_DATA_URI, DATA_PROJECTION,
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DataColumns.NOTE_ID + "=?", new String[] {
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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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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));
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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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public static WorkingNote createEmptyNote(Context context, long folderId, int widgetId,
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int widgetType, int defaultBgColorId) {//创建一个空便签
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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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public static WorkingNote load(Context context, long id) {//加载已经创建的便签
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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，成功保存返回true，否则返回false
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if (isWorthSaving()) {
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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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mNote.syncNote(mContext, mNoteId);
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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
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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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public boolean existInDatabase() {//查看该note是否已经存放到数据库中
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return mNoteId > 0;
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}
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private boolean isWorthSaving() {//判断是否需要保存
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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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public void setOnSettingStatusChangedListener(NoteSettingChangedListener l) {//设置状态改变的监听器
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mNoteSettingStatusListener = l;
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}
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public void setAlertDate(long date, boolean set) {//设置提醒日期
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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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public void markDeleted(boolean mark) {//设置删除标志
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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();
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}
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}
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public void setBgColorId(int id) {//设定背景颜色
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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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public void setCheckListMode(int mode) {//设置检查列表模式
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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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public void setWidgetType(int type) {//设置窗口类型
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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));
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}
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}
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public void setWidgetId(int id) {//设置窗口编号
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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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public void setWorkingText(String text) {//写入文本内容
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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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public void convertToCallNote(String phoneNumber, long callDate) {//转换成电话提醒的便签
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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));
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}
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public boolean hasClockAlert() {//检测是否有时钟提醒，mAlertDate > 0返回真，否则返回假
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return (mAlertDate > 0 ? true : false);
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}
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public String getContent() {//获取便签内容
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return mContent;
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}
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public long getAlertDate() {//获取提醒时间
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return mAlertDate;
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}
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public long getModifiedDate() {//获取修改时间
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return mModifiedDate;
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}
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public int getBgColorResId() {//获取背景颜色来源id
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return NoteBgResources.getNoteBgResource(mBgColorId);
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}
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public int getBgColorId() {//获取背景颜色id
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return mBgColorId;
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}
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public int getTitleBgResId() {//获取标题背景颜色资源的id
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return NoteBgResources.getNoteTitleBgResource(mBgColorId);
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}
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public int getCheckListMode() {//获取清单模式
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return mMode;
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}
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public long getNoteId() {//获取便签id
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return mNoteId;
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}
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public long getFolderId() {//获取文件夹id
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return mFolderId;
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}
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public int getWidgetId() {//获取窗口id
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return mWidgetId;
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}
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public int getWidgetType() {//监听检测便签设置变化的接口
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return mWidgetType;
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}
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public interface NoteSettingChangedListener {//监听便签设置是否改变
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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();//背景颜色改变
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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);//提醒时间按钮，可进行时间的更改和提醒的开关
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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();//窗口改变
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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);//便签检查列表模式改变
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}
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}
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