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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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/*
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*文件名：Notes.java
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* 修改人：蒙程
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* 修改时间：2025-12-06
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* 修改内容：增加代码注释，标注的代码行数共37行
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*/
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package net.micode.notes.data;
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import android.net.Uri;
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/**
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*Notes是便签数据库类
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* <P>定义了URI常量、便签/文件夹类型常量、Intent扩展字段名、数据库接口、两种与业务实体</P>
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* 本类所有字段均用<b>static final</b>修饰，说明字段不会变，可以直接用
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* @author 蒙程
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* @since [起始版本]
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*/
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public class Notes {
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//一、ContentProvider权威域名
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public static final String AUTHORITY = "micode_notes"; //拼接URI的前缀
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public static final String TAG = "Notes"; //日志显示Notes
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//二、便签/文件夹/系统文件夹 类型常量
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public static final int TYPE_NOTE = 0; //普通文本便签类型常量为0
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public static final int TYPE_FOLDER = 1; //文件夹类型常量为1
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public static final int TYPE_SYSTEM = 2; //系统文件夹（如回收站）类型常量为2
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/**
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* Following IDs are system folders' identifiers
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* {@link Notes#ID_ROOT_FOLDER } is default folder
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* {@link Notes#ID_TEMPORARY_FOLDER } is for notes belonging no folder
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* {@link Notes#ID_CALL_RECORD_FOLDER} is to store call records
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*/
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//三、系统保留文件夹 ID
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public static final int ID_ROOT_FOLDER = 0; //默认文件夹ID为0
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public static final int ID_TEMPORARY_FOLDER = -1; //临时文件夹
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public static final int ID_CALL_RECORD_FOLDER = -2; //通话记录文件夹ID，保存由通话备忘功能生成的便签
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public static final int ID_TRASH_FOLDER = -3;
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//四、Intent是什么?
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public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date"; //提醒时间戳
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public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id"; //便签背景颜色
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public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id"; //桌面便签小部件
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public static final String INTENT_EXTRA_WIDGET_TYPE = "net.micode.notes.widget_type"; //桌面便签小部件类型
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public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id"; //便签父文件夹ID
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public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date"; //通话记录时间戳
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//五、桌面小部件类型常量
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public static final int TYPE_WIDGET_INVALIDE = -1;
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public static final int TYPE_WIDGET_2X = 0;
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public static final int TYPE_WIDGET_4X = 1;
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/**
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*六、便签数据MIME汇总常量类
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* Android 的 ContentResolver 在查询/插入/打开文件时会先问 URI 对应的 MIME：
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*/
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public static class DataConstants {
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public static final String NOTE = TextNote.CONTENT_ITEM_TYPE; //文本便签MIME类型
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public static final String CALL_NOTE = CallNote.CONTENT_ITEM_TYPE; //通话备忘MIME类型
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}
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//七、基础URI
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/**
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* Uri to query all notes and folders
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*/
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public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note");
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/**
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* Uri to query data
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* 包括附件、文本、通话记录
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*/
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public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data");
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//八、数据库列名接口 —— Note 表
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/**
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* NoteColumns是便签数据库列名接口，只定义/声明一些方法、变量
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* 此处声明了便签数据列名有ID,PARENT_ID,创建日期，修改日期，提醒日期等
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*/
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public interface NoteColumns {
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/**
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* The unique ID for a ro
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* <P> Type: INTEGER (long) </P>
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*/
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public static final String ID = "_id";
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/**
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* The parent's id for note or folder
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* <P> Type: INTEGER (long) </P>
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*/
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public static final String PARENT_ID = "parent_id";
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/**
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* Created data for note or folder
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* <P> Type: INTEGER (long) </P>
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*/
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public static final String CREATED_DATE = "created_date";
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/**
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* Latest modified date
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* <P> Type: INTEGER (long) </P>
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*/
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public static final String MODIFIED_DATE = "modified_date";
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/**
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* Alert date
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* <P> Type: INTEGER (long) </P>
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*/
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public static final String ALERTED_DATE = "alert_date";
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/**
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* Folder's name or text content of note
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* <P> Type: TEXT </P>
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*/
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public static final String SNIPPET = "snippet";
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/**
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* Note's widget id
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* <P> Type: INTEGER (long) </P>
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*/
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public static final String WIDGET_ID = "widget_id";
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/**
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* Note's widget type
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* <P> Type: INTEGER (long) </P>
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*/
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public static final String WIDGET_TYPE = "widget_type";
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/**
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* Note's background color's id
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* <P> Type: INTEGER (long) </P>
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*/
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public static final String BG_COLOR_ID = "bg_color_id";
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/**
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* For text note, it doesn't has attachment, for multi-media
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* note, it has at least one attachment
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* <P> Type: INTEGER </P>
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*/
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public static final String HAS_ATTACHMENT = "has_attachment";
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/**
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* Folder's count of notes
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* <P> Type: INTEGER (long) </P>
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*/
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public static final String NOTES_COUNT = "notes_count";
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/**
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* The file type: folder or note
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* <P> Type: INTEGER </P>
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*/
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public static final String TYPE = "type";
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/**
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* The last sync id
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* <P> Type: INTEGER (long) </P>
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*/
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public static final String SYNC_ID = "sync_id";
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/**
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* Sign to indicate local modified or not
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* <P> Type: INTEGER </P>
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*/
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public static final String LOCAL_MODIFIED = "local_modified";
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/**
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* Original parent id before moving into temporary folder
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* <P> Type : INTEGER </P>
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*/
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public static final String ORIGIN_PARENT_ID = "origin_parent_id";
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/**
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* The gtask id
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* <P> Type : TEXT </P>
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*/
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public static final String GTASK_ID = "gtask_id";
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/**
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* Alert location latitude
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* <P> Type: REAL </P>
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*/
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public static final String ALERT_LATITUDE = "alert_latitude";
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/**
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* Alert location longitude
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* <P> Type: REAL </P>
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*/
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public static final String ALERT_LONGITUDE = "alert_longitude";
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/**
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* Alert location radius
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* <P> Type: REAL </P>
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*/
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public static final String ALERT_RADIUS = "alert_radius";
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/**
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* Alert location name
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* <P> Type: TEXT </P>
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*/
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public static final String ALERT_LOCATION_NAME = "alert_location_name";
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/**
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* Note tag
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* <P> Type: TEXT </P>
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*/
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public static final String TAG = "tag";
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/**
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* The version code
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* <P> Type : INTEGER (long) </P>
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*/
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public static final String VERSION = "version";
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/**
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* Lock status: 0-unlocked, 1-locked
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* <P> Type: INTEGER </P>
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*/
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public static final String LOCKED = "locked";
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/**
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* Lock type: 0-none, 1-password, 2-gesture
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* <P> Type: INTEGER </P>
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*/
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public static final String LOCK_TYPE = "lock_type";
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/**
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* Encrypted password for privacy lock
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* <P> Type: TEXT </P>
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*/
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public static final String ENCRYPTED_PASSWORD = "encrypted_password";
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}
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//九、数据库列名接口 —— Data 表
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/**
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* DataColumns是数据库列名接口
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*/
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public interface DataColumns {
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/**
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* The unique ID for a row
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* <P> Type: INTEGER (long) </P>
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*/
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public static final String ID = "_id"; //主键是_id
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/**
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* The MIME type of the item represented by this row.
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* <P> Type: Text </P>
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*/
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public static final String MIME_TYPE = "mime_type";
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/**
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* The reference id to note that this data belongs to
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* <P> Type: INTEGER (long) </P>
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*/
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public static final String NOTE_ID = "note_id";
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/**
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* Created data for note or folder
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* <P> Type: INTEGER (long) </P>
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*/
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public static final String CREATED_DATE = "created_date";
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/**
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* Latest modified date
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* <P> Type: INTEGER (long) </P>
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*/
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public static final String MODIFIED_DATE = "modified_date";
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/**
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* Data's content
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* <P> Type: TEXT </P>
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*/
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public static final String CONTENT = "content";
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/**
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* Generic data column, the meaning is {@link #MIME_TYPE} specific, used for
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* integer data type
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* <P> Type: INTEGER </P>
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*/
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public static final String DATA1 = "data1";
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/**
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* Generic data column, the meaning is {@link #MIME_TYPE} specific, used for
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* integer data type
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* <P> Type: INTEGER </P>
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*/
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public static final String DATA2 = "data2";
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/**
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* Generic data column, the meaning is {@link #MIME_TYPE} specific, used for
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* TEXT data type
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* <P> Type: TEXT </P>
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*/
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public static final String DATA3 = "data3";
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/**
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* Generic data column, the meaning is {@link #MIME_TYPE} specific, used for
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* TEXT data type
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* <P> Type: TEXT </P>
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*/
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public static final String DATA4 = "data4";
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/**
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* Generic data column, the meaning is {@link #MIME_TYPE} specific, used for
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* TEXT data type
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* <P> Type: TEXT </P>
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*/
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public static final String DATA5 = "data5";
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}
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//十、文本便签实体常量类
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//文本便签TextNote类实现DataColumns接口中声明的方法
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public static final class TextNote implements DataColumns {
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/**
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* Mode to indicate the text in check list mode or not
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* <P> Type: Integer 1:check list mode 0: normal mode </P>
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*/
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public static final String MODE = DATA1; //清单模式or普通文本模式？
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public static final int MODE_CHECK_LIST = 1;
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public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note"; //MIME类型为集合（多条）
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public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note"; //MIME类型为单条
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public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note");
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}
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/**
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*通话记录便签实体常量类
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* 通话记录CallNote类也实现了DataColumns接口，体现了接口的多实现特性。
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*/
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public static final class CallNote implements DataColumns {
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/**
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* Call date for this record
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* <P> Type: INTEGER (long) </P>
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*/
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public static final String CALL_DATE = DATA1; //DATA1是数据库中的真实列名，将通话的时间戳存入DATA1列中
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/**
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* Phone number for this record
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* <P> Type: TEXT </P>
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*/
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public static final String PHONE_NUMBER = DATA3;
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public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note";
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public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note";
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public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note");
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}
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}
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