111

src/net/micode/notes/data/Notes.java

@@ -14,12 +14,14 @@
  * limitations under the License.
  */
 
+ 
+//这是一个Android应用中用于管理笔记数据的常量定义类，属于net.micode.notes.data包。
 package net.micode.notes.data;//导入包
 
-import android.net.Uri;
-public class Notes {//创建类
+import android.net.Uri;//导入了Android的Uri类用于处理内容URI
+public class Notes {//定义了三种类型常量：普通笔记、文件夹和系统文件夹
     public static final String AUTHORITY = "micode_notes";
-    public static final String TAG = "Notes";
+    public static final String TAG = "Notes";//TAG: 用于日志的标签
     public static final int TYPE_NOTE     = 0;
     public static final int TYPE_FOLDER   = 1;
     public static final int TYPE_SYSTEM   = 2;
@@ -30,11 +32,12 @@ public class Notes {//创建类
      * {@link Notes#ID_TEMPARAY_FOLDER } is for notes belonging no folder
      * {@link Notes#ID_CALL_RECORD_FOLDER} is to store call records
      */
+    //定义了系统文件夹的特殊ID值，包括根文件夹、临时文件夹、通话记录文件夹和回收站
     public static final int ID_ROOT_FOLDER = 0;
     public static final int ID_TEMPARAY_FOLDER = -1;
     public static final int ID_CALL_RECORD_FOLDER = -2;
     public static final int ID_TRASH_FOLER = -3;
-
+    //定义了用于Activity或Service间传递数据的Intent Extra键名
     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";