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Notes.java 注释

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c_master
yijunchao 2 years ago
parent 4fa4ced829
commit 1e23e3f0f1
1 changed files with 67 additions and 43 deletions
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110
代码解读/MiNotes-master/app/src/main/java/net/micode/notes/data/Notes.java
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@ -1,25 +1,13 @@
/*
* 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
* 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;
import android.content.ContentUris;
import android.net.Uri;
// Notes 类中定义了很多常量，这些常量大多是int型和string型
public class Notes {
public static final String AUTHORITY = "micode_notes";
public static final String TAG = "Notes";
//以下三个常量对NoteColumns.TYPE的值进行设置时会用到
public static final int TYPE_NOTE = 0;
public static final int TYPE_FOLDER = 1;
public static final int TYPE_SYSTEM = 2;
@ -35,12 +23,24 @@ public class Notes {
public static final int ID_CALL_RECORD_FOLDER = -2;
public static final int ID_TRASH_FOLER = -3;
public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date";
public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id";
public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id";
public static final String INTENT_EXTRA_WIDGET_TYPE = "net.micode.notes.widget_type";
public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id";
public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date";
public static final String INTENT_EXTRA_ALERT_DATE =
"net.micode.notes.alert_date";
public static final String INTENT_EXTRA_BACKGROUND_ID =
"net.micode.notes.background_color_id";
public static final String INTENT_EXTRA_WIDGET_ID =
"net.micode.notes.widget_id";
public static final String INTENT_EXTRA_WIDGET_TYPE =
"net.micode.notes.widget_type";
public static final String INTENT_EXTRA_FOLDER_ID =
"net.micode.notes.folder_id";
public static final String INTENT_EXTRA_CALL_DATE =
"net.micode.notes.call_date";
public static final int TYPE_WIDGET_INVALIDE = -1;
public static final int TYPE_WIDGET_2X = 0;
@ -54,13 +54,20 @@ public class Notes {
/**
* Uri to query all notes and folders
*/
public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note");
public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" +
AUTHORITY + "/note");//定义查询便签和文件夹的指针。
// public static final Uri my_URI = ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI , 10);
/**
* Uri to query data
*/
public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data");
public static final Uri CONTENT_DATA_URI = Uri.parse("content://" +
AUTHORITY + "/data");//定义查找数据的指针。
// 定义NoteColumns的常量,用于后面创建数据库的表头
public interface NoteColumns {
/**
* The unique ID for a row
@ -72,7 +79,7 @@ public class Notes {
* The parent's id for note or folder
* <P> Type: INTEGER (long) </P>
*/
public static final String PARENT_ID = "parent_id";
public static final String PARENT_ID = "parent_id";//为什么会有parent_id
/**
* Created data for note or folder
@ -140,7 +147,7 @@ public class Notes {
* The last sync id
* <P> Type: INTEGER (long) </P>
*/
public static final String SYNC_ID = "sync_id";
public static final String SYNC_ID = "sync_id";//同步
/**
* Sign to indicate local modified or not
@ -165,8 +172,9 @@ public class Notes {
* <P> Type : INTEGER (long) </P>
*/
public static final String VERSION = "version";
}
}//这些常量主要是定义便签的属性的。
// 定义DataColumns的常量,用于后面创建数据库的表头
public interface DataColumns {
/**
* The unique ID for a row
@ -206,41 +214,45 @@ public class Notes {
/**
* Generic data column, the meaning is {@link #MIMETYPE} specific, used for
* Generic data column, the meaning is {@link #MIMETYPE} specific,
used for
* integer data type
* <P> Type: INTEGER </P>
*/
public static final String DATA1 = "data1";
/**
* Generic data column, the meaning is {@link #MIMETYPE} specific, used for
* Generic data column, the meaning is {@link #MIMETYPE} specific,
used for
* integer data type
* <P> Type: INTEGER </P>
*/
public static final String DATA2 = "data2";
/**
* Generic data column, the meaning is {@link #MIMETYPE} specific, used for
* 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
* 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
* Generic data column, the meaning is {@link #MIMETYPE} specific,
used for
* TEXT data type
* <P> Type: TEXT </P>
*/
public static final String DATA5 = "data5";
}
}//主要是定义存储便签内容数据的
public static final class TextNote implements DataColumns {
/**
* Mode to indicate the text in check list mode or not
@ -250,12 +262,18 @@ public class Notes {
public static final int MODE_CHECK_LIST = 1;
public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note";
public static final String CONTENT_TYPE =
public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note";
"vnd.android.cursor.dir/text_note";
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note");
}
public static final String CONTENT_ITEM_TYPE =
"vnd.android.cursor.item/text_note";
public static final Uri CONTENT_URI = Uri.parse("content://" +
AUTHORITY + "/text_note");
}//文本内容的数据结构
public static final class CallNote implements DataColumns {
/**
@ -270,10 +288,16 @@ public class Notes {
*/
public static final String PHONE_NUMBER = DATA3;
public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note";
public static final String CONTENT_TYPE =
public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note";
"vnd.android.cursor.dir/call_note";
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/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");
}//电话内容的数据结构
}
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