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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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// 定义包名,指明该类所在的包路径
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package net.micode.notes.data;
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// 导入Android Uri类,用于构建ContentProvider的URI
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import android.net.Uri;
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/**
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* 定义笔记应用的核心数据模型类
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* 包含数据库表结构定义、ContentProvider URI、类型常量等全局配置
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*/
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public class Notes {
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// ContentProvider的授权标识,对应AndroidManifest.xml中配置的authorities
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public static final String AUTHORITY = "micode_notes";
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// 日志标签,用于在Logcat中标识日志来源
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public static final String TAG = "Notes";
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// 定义笔记项的类型常量
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public static final int TYPE_NOTE = 0; // 普通笔记类型
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public static final int TYPE_FOLDER = 1; // 文件夹类型
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public static final int TYPE_SYSTEM = 2; // 系统文件夹类型
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/**
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* 系统文件夹的标识符常量:
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* {@link Notes#ID_ROOT_FOLDER } 根文件夹(默认文件夹)
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* {@link Notes#ID_TEMPARAY_FOLDER } 临时文件夹(存放未分类笔记)
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* {@link Notes#ID_CALL_RECORD_FOLDER} 通话记录文件夹
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* 注意:ID_TRASH_FOLER可能存在拼写错误,应为ID_TRASH_FOLDER
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*/
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public static final int ID_ROOT_FOLDER = 0; // 根文件夹ID
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public static final int ID_TEMPARAY_FOLDER = -1; // 临时文件夹ID(拼写错误TEMPARAY应为TEMPORARY)
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public static final int ID_CALL_RECORD_FOLDER = -2; // 通话记录文件夹ID
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public static final int ID_TRASH_FOLER = -3; // 回收站文件夹ID(拼写错误FOLER应为FOLDER)
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// Intent附加数据键名常量,用于Activity间传递数据
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public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date"; // 提醒日期
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public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id"; // 背景色ID
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public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id"; // 桌面小部件ID
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public static final String INTENT_EXTRA_WIDGET_TYPE = "net.micode.notes.widget_type"; // 小部件类型
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public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id"; // 文件夹ID
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public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date"; // 通话日期
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// 桌面小部件类型常量
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public static final int TYPE_WIDGET_INVALIDE = -1; // 无效小部件类型
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public static final int TYPE_WIDGET_2X = 0; // 2x尺寸小部件
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public static final int TYPE_WIDGET_4X = 1; // 4x尺寸小部件
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/**
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* 数据项类型常量内部类
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* 定义不同笔记类型的MIME类型
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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; // 文本笔记类型
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public static final String CALL_NOTE = CallNote.CONTENT_ITEM_TYPE;// 通话笔记类型
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}
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/**
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* ContentProvider URI定义
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*/
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// 查询所有笔记和文件夹的URI(content://micode_notes/note)
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public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note");
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// 查询所有数据项的URI(content://micode_notes/data)
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public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data");
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/**
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* 笔记表列名接口定义
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* 对应数据库表中的字段名称和数据类型
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*/
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public interface NoteColumns {
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/** 唯一标识符(长整型) */
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public static final String ID = "_id";
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/** 父项ID(用于构建层级结构,长整型) */
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public static final String PARENT_ID = "parent_id";
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/** 创建时间(Unix时间戳,长整型) */
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public static final String CREATED_DATE = "created_date";
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/** 最后修改时间(Unix时间戳,长整型) */
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public static final String MODIFIED_DATE = "modified_date";
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/** 提醒时间(Unix时间戳,长整型) */
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public static final String ALERTED_DATE = "alert_date";
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/** 内容摘要(文件夹名称或笔记前几句文本) */
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public static final String SNIPPET = "snippet";
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/** 关联的桌面小部件ID(长整型) */
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public static final String WIDGET_ID = "widget_id";
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/** 小部件类型(0:2x,1:4x,长整型) */
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public static final String WIDGET_TYPE = "widget_type";
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/** 背景颜色ID(长整型) */
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public static final String BG_COLOR_ID = "bg_color_id";
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/** 是否有附件(0/1整型) */
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public static final String HAS_ATTACHMENT = "has_attachment";
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/** 包含的笔记数量(仅文件夹有效,长整型) */
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public static final String NOTES_COUNT = "notes_count";
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/** 条目类型(0笔记/1文件夹/2系统,整型) */
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public static final String TYPE = "type";
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/** 同步ID(用于云端同步,长整型) */
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public static final String SYNC_ID = "sync_id";
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/** 本地修改标记(0未修改/1已修改,整型) */
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public static final String LOCAL_MODIFIED = "local_modified";
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/** 移动前的原始父ID(用于临时文件夹操作,整型) */
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public static final String ORIGIN_PARENT_ID = "origin_parent_id";
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/** Google Task ID(同步相关,文本) */
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public static final String GTASK_ID = "gtask_id";
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/** 数据版本号(长整型) */
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public static final String VERSION = "version";
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}
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/**
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* 数据表列名接口定义
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* 存储笔记的具体内容数据
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*/
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public interface DataColumns {
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/** 唯一标识符(长整型) */
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public static final String ID = "_id";
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/** MIME类型(决定数据项类型,如text_note/call_note) */
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public static final String MIME_TYPE = "mime_type";
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/** 关联的笔记ID(外键,长整型) */
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public static final String NOTE_ID = "note_id";
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/** 创建时间(Unix时间戳,长整型) */
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public static final String CREATED_DATE = "created_date";
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/** 最后修改时间(Unix时间戳,长整型) */
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public static final String MODIFIED_DATE = "modified_date";
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/** 主要内容(文本笔记的完整内容) */
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public static final String CONTENT = "content";
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// 通用数据列(根据MIME_TYPE不同用途不同)
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/** 通用整型数据1(如文本笔记的列表模式) */
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public static final String DATA1 = "data1";
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/** 通用整型数据2 */
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public static final String DATA2 = "data2";
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/** 通用文本数据3(如通话记录的电话号码) */
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public static final String DATA3 = "data3";
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/** 通用文本数据4 */
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public static final String DATA4 = "data4";
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/** 通用文本数据5 */
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public static final String DATA5 = "data5";
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}
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/**
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* 文本笔记数据定义(继承DataColumns)
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*/
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public static final class TextNote implements DataColumns {
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/** 列表模式标识(DATA1列,1=清单模式,0=普通模式) */
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public static final String MODE = DATA1;
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public static final int MODE_CHECK_LIST = 1; // 清单模式常量
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// MIME类型定义
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public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note"; // 多条目类型
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public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note"; // 单条目类型
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// 文本笔记的ContentProvider URI(content://micode_notes/text_note)
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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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* 通话记录笔记数据定义(继承DataColumns)
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*/
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public static final class CallNote implements DataColumns {
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/** 通话日期(使用DATA1列存储Unix时间戳) */
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public static final String CALL_DATE = DATA1;
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/** 电话号码(使用DATA3列存储) */
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public static final String PHONE_NUMBER = DATA3;
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// MIME类型定义
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public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note"; // 多条目类型
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public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note"; // 单条目类型
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// 通话笔记的ContentProvider URI(content://micode_notes/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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} |