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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;
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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 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;
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import net.micode.notes.tool.DataUtils;
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/**
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* 笔记项数据类，表示一条笔记或文件夹的数据
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*/
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public class NoteItemData {
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// 数据库查询的列名投影
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static final String [] PROJECTION = new String [] {
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NoteColumns.ID, // 笔记ID
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NoteColumns.ALERTED_DATE, // 提醒日期
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NoteColumns.BG_COLOR_ID, // 背景颜色ID
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NoteColumns.CREATED_DATE, // 创建日期
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NoteColumns.HAS_ATTACHMENT, // 是否有附件
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NoteColumns.MODIFIED_DATE, // 修改日期
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NoteColumns.NOTES_COUNT, // 笔记数量(针对文件夹)
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NoteColumns.PARENT_ID, // 父文件夹ID
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NoteColumns.SNIPPET, // 内容摘要
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NoteColumns.TYPE, // 类型(笔记/文件夹)
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NoteColumns.WIDGET_ID, // 小部件ID
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NoteColumns.WIDGET_TYPE, // 小部件类型
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};
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// 列索引常量
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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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// 数据字段
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private long mId; // 笔记ID
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private long mAlertDate; // 提醒日期
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private int mBgColorId; // 背景颜色ID
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private long mCreatedDate; // 创建日期
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private boolean mHasAttachment; // 是否有附件
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private long mModifiedDate; // 修改日期
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private int mNotesCount; // 包含的笔记数量(针对文件夹)
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private long mParentId; // 父文件夹ID
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private String mSnippet; // 内容摘要
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private int mType; // 类型(笔记/文件夹)
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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 String mName; // 联系人姓名(针对通话记录)
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private String mPhoneNumber; // 电话号码(针对通话记录)
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// 位置状态标志
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private boolean mIsLastItem; // 是否是列表最后一项
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private boolean mIsFirstItem; // 是否是列表第一项
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private boolean mIsOnlyOneItem; // 是否是唯一一项
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private boolean mIsOneNoteFollowingFolder; // 是否是文件夹后跟随的单条笔记
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private boolean mIsMultiNotesFollowingFolder; // 是否是文件夹后跟随的多条笔记
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/**
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* 构造函数，从Cursor初始化数据
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* @param context 上下文
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* @param cursor 数据游标
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*/
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public NoteItemData(Context context, Cursor cursor) {
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// 从游标读取各字段值
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mId = cursor.getLong(ID_COLUMN);
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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;
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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);
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// 去除片段中的复选框标记
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mSnippet = mSnippet.replace(NoteEditActivity.TAG_CHECKED, "").replace(
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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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// 初始化通话记录相关字段
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mPhoneNumber = "";
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if (mParentId == Notes.ID_CALL_RECORD_FOLDER) {
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// 如果是通话记录文件夹中的笔记，获取电话号码
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mPhoneNumber = DataUtils.getCallNumberByNoteId(context.getContentResolver(), mId);
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if (!TextUtils.isEmpty(mPhoneNumber)) {
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// 根据电话号码获取联系人姓名
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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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// 检查当前项在列表中的位置状态
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checkPostion(cursor);
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}
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/**
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* 检查当前项在列表中的位置状态
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* @param cursor 数据游标
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*/
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private void checkPostion(Cursor cursor) {
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mIsLastItem = cursor.isLast(); // 是否是最后一项
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mIsFirstItem = cursor.isFirst(); // 是否是第一项
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mIsOnlyOneItem = (cursor.getCount() == 1); // 是否是唯一一项
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mIsMultiNotesFollowingFolder = false;
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mIsOneNoteFollowingFolder = false;
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// 如果是笔记类型且不是第一项
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if (mType == Notes.TYPE_NOTE && !mIsFirstItem) {
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int position = cursor.getPosition();
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// 检查前一项是否是文件夹
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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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// 根据剩余项数量判断是单个笔记还是多个笔记跟随文件夹
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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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// 将游标移回原位
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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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// 以下是各种getter方法和状态检查方法
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public boolean isOneFollowingFolder() {
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return mIsOneNoteFollowingFolder;
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}
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public boolean isMultiFollowingFolder() {
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return mIsMultiNotesFollowingFolder;
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}
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public boolean isLast() {
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return mIsLastItem;
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}
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/**
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* 获取通话记录联系人姓名
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*/
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public String getCallName() {
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return mName;
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}
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public boolean isFirst() {
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return mIsFirstItem;
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}
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public boolean isSingle() {
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return mIsOnlyOneItem;
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}
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public long getId() {
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return mId;
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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 getCreatedDate() {
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return mCreatedDate;
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}
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public boolean hasAttachment() {
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return mHasAttachment;
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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 getBgColorId() {
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return mBgColorId;
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}
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public long getParentId() {
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return mParentId;
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}
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public int getNotesCount() {
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return mNotesCount;
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}
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public long getFolderId() {
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return mParentId;
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}
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public int getType() {
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return mType;
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}
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public int getWidgetType() {
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return mWidgetType;
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}
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public int getWidgetId() {
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return mWidgetId;
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}
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public String getSnippet() {
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return mSnippet;
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}
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public boolean hasAlert() {
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return (mAlertDate > 0);
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}
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/**
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* 是否是通话记录
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*/
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public boolean isCallRecord() {
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return (mParentId == Notes.ID_CALL_RECORD_FOLDER && !TextUtils.isEmpty(mPhoneNumber));
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}
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/**
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* 静态方法，从游标获取笔记类型
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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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}
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} |
