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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.ui;//引入notes.ui这个包
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import android.content.Context;//引入了一系列的功能包以便实现这个类的相关功能
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import android.database.Cursor;//光标
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import android.text.TextUtils;
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import net.micode.notes.data.Contact;
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import net.micode.notes.data.Notes;
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import net.micode.notes.data.Notes.NoteColumns;//便签栏
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import net.micode.notes.tool.DataUtils;
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public class NoteItemData {//常量标记和数据
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static final String [] PROJECTION = new String [] {//常量标记和数据
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NoteColumns.ID,//每个note都有独一无二的id
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NoteColumns.ALERTED_DATE,//设置的警报提醒时间
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NoteColumns.BG_COLOR_ID,//背景颜色的id
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NoteColumns.CREATED_DATE,//创建的时间
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NoteColumns.HAS_ATTACHMENT,//是否有附件。如果是一个text note，它不会有附件，如果是一个多媒体附件，会有至少一个附件
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NoteColumns.MODIFIED_DATE,//修改日期
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NoteColumns.NOTES_COUNT,//便签数量
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NoteColumns.PARENT_ID,//父id
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NoteColumns.SNIPPET,//文件夹名称或者文本注释内容
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NoteColumns.TYPE,// 某一列note的种类，是text note还是folder
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NoteColumns.WIDGET_ID,// 小挂件的序号
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NoteColumns.WIDGET_TYPE,//小挂件的类型
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};
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private static final int ID_COLUMN = 0;
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private static final int ALERTED_DATE_COLUMN = 1;
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private static final int BG_COLOR_ID_COLUMN = 2;
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private static final int CREATED_DATE_COLUMN = 3;
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private static final int HAS_ATTACHMENT_COLUMN = 4;
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private static final int MODIFIED_DATE_COLUMN = 5;
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private static final int NOTES_COUNT_COLUMN = 6;
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private static final int PARENT_ID_COLUMN = 7;
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private static final int SNIPPET_COLUMN = 8;
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private static final int TYPE_COLUMN = 9;
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private static final int WIDGET_ID_COLUMN = 10;
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private static final int WIDGET_TYPE_COLUMN = 11;
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private long mId;
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private long mAlertDate;
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private int mBgColorId;
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private long mCreatedDate;
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private boolean mHasAttachment;
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private long mModifiedDate;
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private int mNotesCount;
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private long mParentId;
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private String mSnippet;
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private int mType;
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private int mWidgetId;
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private int mWidgetType;
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private String mName;
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private String mPhoneNumber;
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private boolean mIsLastItem;//判断是否为最后的项
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private boolean mIsFirstItem;//判断是否为最开始的项
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private boolean mIsOnlyOneItem;// 判断是否只有一个便签，或者一个文件夹
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private boolean mIsOneNoteFollowingFolder;//判断文件夹下是否只有一个便签
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private boolean mIsMultiNotesFollowingFolder;//判断文件夹下是否有多个便签
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public NoteItemData(Context context, Cursor cursor) {//第一个函数是类NoteItemData的构造函数,它完成了以下工作
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1.对于这个类的所有私有m型变量,通过cursor调用json中相应数据进行初始化
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2.对mPhoneNumber和mName进行单独处理
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3.检查cursor的位置
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mId = cursor.getLong(ID_COLUMN);//getxxx为转换格式
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mAlertDate = cursor.getLong(ALERTED_DATE_COLUMN);
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mBgColorId = cursor.getInt(BG_COLOR_ID_COLUMN);
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mCreatedDate = cursor.getLong(CREATED_DATE_COLUMN);
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mHasAttachment = (cursor.getInt(HAS_ATTACHMENT_COLUMN) > 0) ? true : false;//判断行列
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mModifiedDate = cursor.getLong(MODIFIED_DATE_COLUMN);
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mNotesCount = cursor.getInt(NOTES_COUNT_COLUMN);
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mParentId = cursor.getLong(PARENT_ID_COLUMN);
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mSnippet = cursor.getString(SNIPPET_COLUMN);//获得字符串
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mSnippet = mSnippet.replace(NoteEditActivity.TAG_CHECKED, "").replace(//把每项前的方框符号和✔符号去掉
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NoteEditActivity.TAG_UNCHECKED, "");
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mType = cursor.getInt(TYPE_COLUMN);
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mWidgetId = cursor.getInt(WIDGET_ID_COLUMN);
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mWidgetType = cursor.getInt(WIDGET_TYPE_COLUMN);
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mPhoneNumber = "";//初始化电话号码的信息
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if (mParentId == Notes.ID_CALL_RECORD_FOLDER) {
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mPhoneNumber = DataUtils.getCallNumberByNoteId(context.getContentResolver(), mId);
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if (!TextUtils.isEmpty(mPhoneNumber)) {
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mName = Contact.getContact(context, mPhoneNumber);
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if (mName == null) {
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mName = mPhoneNumber;
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}
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}
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}
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if (mName == null) {
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mName = "";
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}
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checkPostion(cursor);
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}
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private void checkPostion(Cursor cursor) {//根据光标位置设置标记
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mIsLastItem = cursor.isLast() ? true : false;//分别为各种描述状态的变量进行赋值
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mIsFirstItem = cursor.isFirst() ? true : false;
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mIsOnlyOneItem = (cursor.getCount() == 1);
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mIsMultiNotesFollowingFolder = false;//初始化“多重子文件”“单一子文件”2个标记
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mIsOneNoteFollowingFolder = false;
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if (mType == Notes.TYPE_NOTE && !mIsFirstItem) {
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int position = cursor.getPosition();
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if (cursor.moveToPrevious()) {
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if (cursor.getInt(TYPE_COLUMN) == Notes.TYPE_FOLDER
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|| cursor.getInt(TYPE_COLUMN) == Notes.TYPE_SYSTEM) {
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if (cursor.getCount() > (position + 1)) {
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mIsMultiNotesFollowingFolder = true;
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} else {
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mIsOneNoteFollowingFolder = true;
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}
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}
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if (!cursor.moveToNext()) {
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throw new IllegalStateException("cursor move to previous but can't move back");
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}
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}
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}
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}
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public boolean isOneFollowingFolder() {
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return mIsOneNoteFollowingFolder;
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}//.接下来都是获取标记的函数
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public boolean isMultiFollowingFolder() {
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return mIsMultiNotesFollowingFolder;
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}//若数据父id为保存至文件夹模式的id且满足电话号码单元不为空，则isCallRecord为true
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public boolean isLast() {
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return mIsLastItem;
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}//判断是否是最后一个项
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public String getCallName() {
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return mName;
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}//获得便签的姓名
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public boolean isFirst() {
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return mIsFirstItem;
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}// 判断是否是第一个项
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public boolean isSingle() {
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return mIsOnlyOneItem;
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}//判断是否只有一个项
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public long getId() {
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return mId;
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}//获得对应的ID值
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public long getAlertDate() {
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return mAlertDate;
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}//获得对应的提醒时间
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public long getCreatedDate() {
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return mCreatedDate;
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}//获得创建的时间
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public boolean hasAttachment() {
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return mHasAttachment;
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}// 判断是否关联桌面挂件
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public long getModifiedDate() {
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return mModifiedDate;
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}//获得修改的时间
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public int getBgColorId() {
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return mBgColorId;
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}//获得背景颜色的索引
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public long getParentId() {
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return mParentId;
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}//获得父进程的id
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public int getNotesCount() {
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return mNotesCount;
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}//获得便签数量
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public long getFolderId () {
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return mParentId;
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}//获得文件夹id
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public int getType() {
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return mType;
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}//获得项的类型
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public int getWidgetType() {
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return mWidgetType;
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}//获得桌面挂件的类型
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public int getWidgetId() {
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return mWidgetId;
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}//获得获得桌面挂件id
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public String getSnippet() {
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return mSnippet;
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}//获得文件夹名称
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public boolean hasAlert() {
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return (mAlertDate > 0);
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}//判读此便签是否有提醒
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public boolean isCallRecord() {//判断便签项是否为CallRecord
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return (mParentId == Notes.ID_CALL_RECORD_FOLDER && !TextUtils.isEmpty(mPhoneNumber));//如果父类id保存至文件夹模式并且电话号码单元不为空
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}
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public static int getNoteType(Cursor cursor) {
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return cursor.getInt(TYPE_COLUMN);
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}//获得便签的类型
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}
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