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doc/Notes.java
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/*
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software//许可说明
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.micode.notes.data;// 表明包文件归属
import android.net.Uri;//引用url
public class Notes {//Notes类，在类中定义了了许多常量
public static final String AUTHORITY = "micode_notes";
public static final String TAG = "Notes";//APP名称
public static final int TYPE_NOTE = 0;
public static final int TYPE_FOLDER = 1;
public static final int TYPE_SYSTEM = 2;
/**
* Following IDs are system folders' identifiers//下列标识为默认文件夹、临时文件夹、通话记录等
* {@link Notes#ID_ROOT_FOLDER } is default folder
* {@link Notes#ID_TEMPARAY_FOLDER } is for notes belonging no folder
* {@link Notes#ID_CALL_RECORD_FOLDER} is to store call records
*/
public static final int ID_ROOT_FOLDER = 0;// 根目录
public static final int ID_TEMPARAY_FOLDER = -1;//临时文件夹
public static final int ID_CALL_RECORD_FOLDER = -2;//背景
public static final int ID_TRASH_FOLER = -3;//回收站文件夹
public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date";//文件夹编号
public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id";//背景颜色
public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id";//桌面插件
public static final String INTENT_EXTRA_WIDGET_TYPE = "net.micode.notes.widget_type";// 大号桌面插件
public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id";//创建text note的存放地址
public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date";//定义call_data的ID
public static final int TYPE_WIDGET_INVALIDE = -1;//定义查询便签和文件夹的指针
public static final int TYPE_WIDGET_2X = 0;//定义查找数据的指针
public static final int TYPE_WIDGET_4X = 1;// 定义桌面挂件的属性
public static class DataConstants {//DataContants类：存放textnotes和callnotes地址
public static final String NOTE = TextNote.CONTENT_ITEM_TYPE;
public static final String CALL_NOTE = CallNote.CONTENT_ITEM_TYPE;
}
/**
* Uri to query all notes and folders
*/
public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note");// URI常量，方便进行系统查询
/**
* Uri to query data
*/
public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data");//通过uri查询数据
public interface NoteColumns {//定义NoteColumns的常量,用于后面创建数据库的表头
/**
* The unique ID for a row//主键
* <P> Type: INTEGER (long) </P>
*/
public static final String ID = "_id";//每一行的ID
/**
* The parent's id for note or folder
* <P> Type: INTEGER (long) </P>
*/
public static final String PARENT_ID = "parent_id";
/**
* Created data for note or folder//创建一个属于note或者folder的数据
* <P> Type: INTEGER (long) </P>
*/
public static final String CREATED_DATE = "created_date";//创建日期
/**
* Latest modified date
* <P> Type: INTEGER (long) </P>
*/
public static final String MODIFIED_DATE = "modified_date";// 更改时间
/**
* Alert date
* <P> Type: INTEGER (long) </P>
*/
public static final String ALERTED_DATE = "alert_date";
/**
* Folder's name or text content of note//文件夹名字或者文件内容
* <P> Type: TEXT </P>
*/
public static final String SNIPPET = "snippet";//文件夹的名字或者便签内容
/**
* Note's widget id// note小物件id
* <P> Type: INTEGER (long) </P>
*/
public static final String WIDGET_ID = "widget_id";//小部件ID
/**
* Note's widget type//便签页数
* <P> Type: INTEGER (long) </P>//note小物件类型
*/
public static final String WIDGET_TYPE = "widget_type";//小部件类型
/**
* Note's background color's id//便签背景颜色
* <P> Type: INTEGER (long) </P>//note背景颜色id
*/
public static final String BG_COLOR_ID = "bg_color_id";//背景颜色ID
/**
* For text note, it doesn't has attachment, for multi-media
* note, it has at least one attachment
* <P> Type: INTEGER </P>//对于文字note，它没有附件，对于多个Note，它至少有一个附件
*/
public static final String HAS_ATTACHMENT = "has_attachment";//是否有附件
/**
* Folder's count of notes
* <P> Type: INTEGER (long) </P>//文件夹内有多少个note
*/
public static final String NOTES_COUNT = "notes_count";//文件夹中的便签数量
/**
* The file type: folder or note//文件类型:folder 或者 note
* <P> Type: INTEGER </P>
*/
public static final String TYPE = "type";//是文件夹还是便签
/**
* The last sync id
* <P> Type: INTEGER (long) </P>
*/
public static final String SYNC_ID = "sync_id";
/**
* Sign to indicate local modified or not
* <P> Type: INTEGER </P>
*/
public static final String LOCAL_MODIFIED = "local_modified";//标识是否本地修改
/**
* Original parent id before moving into temporary folder
* <P> Type : INTEGER </P>
*/
public static final String ORIGIN_PARENT_ID = "origin_parent_id";//移动到临时文件夹之前的父文件夹
/**
* The gtask id
* <P> Type : TEXT </P>
*/
public static final String GTASK_ID = "gtask_id";//后台任务ID
/**
* The version code
* <P> Type : INTEGER (long) </P>
*/
public static final String VERSION = "version";//版本
}
public interface DataColumns {// 定义DataColumns的常量,用于后面创建数据库的表头
/**
* The unique ID for a row
* <P> Type: INTEGER (long) </P>
*/
public static final String ID = "_id";//定义DataColumns的部分常量
/**
* The MIME type of the item represented by this row.
* <P> Type: Text </P>
*/
public static final String MIME_TYPE = "mime_type";//定义文件类型
/**
* The reference id to note that this data belongs to
* <P> Type: INTEGER (long) </P>
*/
public static final String NOTE_ID = "note_id";//便签ID
/**
* Created data for note or folder
* <P> Type: INTEGER (long) </P>
*/
public static final String CREATED_DATE = "created_date";//创建时间
/**
* Latest modified date//调整时间
* <P> Type: INTEGER (long) </P>
*/
public static final String MODIFIED_DATE = "modified_date";//最新的修改时间
/**
* Data's content
* <P> Type: TEXT </P>
*/
public static final String CONTENT = "content";//定义数据包含的内容
/**
* Generic data column, the meaning is {@link #MIMETYPE} specific, used for//根据MIME类型的不同，对应下面5个不同属性
* integer data type
* <P> Type: INTEGER </P>
*/
public static final String DATA1 = "data1";//文本内容的数据结构
/**
* Generic data column, the meaning is {@link #MIMETYPE} specific, used for
* integer data type
* <P> Type: INTEGER </P>
*/
public static final String DATA2 = "data2";//文本模式
/**
* Generic data column, the meaning is {@link #MIMETYPE} specific, used for
* TEXT data type
* <P> Type: TEXT </P>
*/
public static final String DATA3 = "data3";
/**
* Generic data column, the meaning is {@link #MIMETYPE} specific, used for
* TEXT data type
* <P> Type: TEXT </P>
*/
public static final String DATA4 = "data4";
/**
* Generic data column, the meaning is {@link #MIMETYPE} specific, used for
* TEXT data type
* <P> Type: TEXT </P>
*/
public static final String DATA5 = "data5";
}
public static final class TextNote implements DataColumns {// 对DataColumns的实现，建立一个新的类，textNote用于保存相关的信息。
/**
* Mode to indicate the text in check list mode or not// 清单模式的MODE=0，正常模式的MODE=1
* <P> Type: Integer 1:check list mode 0: normal mode </P>
*/
public static final String MODE = DATA1;//电话号码
public static final int MODE_CHECK_LIST = 1;//设置为检查列表模式
public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note";//内容的类型
public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note";//内容项目类型
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note");//关于电话的数据结构
}
public static final class CallNote implements DataColumns {//记录通话数据的表头
/**
* Call date for this record//通话记录
* <P> Type: INTEGER (long) </P>
*/
public static final String CALL_DATE = DATA1;//存放通话时间信息
/**
* Phone number for this record
* <P> Type: TEXT </P>
*/
public static final String PHONE_NUMBER = DATA3;//存放通话号码信息
public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note";
public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note";
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note");//内容标识符
}
}
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