添加注释

src/Notes-master1/app/src/main/java/net/micode/notes/data/Notes.java

@@ -14,12 +14,16 @@
  * limitations under the License.
  */
 
+
 package net.micode.notes.data;
 
 import android.net.Uri;
 public class Notes {
+    // 定义数据库的权限
     public static final String AUTHORITY = "micode_notes";
+    // 定义日志标签
     public static final String TAG = "Notes";
+    // 定义笔记类型
     public static final int TYPE_NOTE     = 0;
     public static final int TYPE_FOLDER   = 1;
     public static final int TYPE_SYSTEM   = 2;
@@ -30,11 +34,16 @@ public class Notes {
      * {@link Notes#ID_TEMPARAY_FOLDER } is for notes belonging no folder
      * {@link Notes#ID_CALL_RECORD_FOLDER} is to store call records
      */
+    // 定义根文件夹的ID
     public static final int ID_ROOT_FOLDER = 0;
+    // 定义临时文件夹的ID
     public static final int ID_TEMPARAY_FOLDER = -1;
+    // 定义通话记录文件夹的ID
     public static final int ID_CALL_RECORD_FOLDER = -2;
+    // 定义垃圾文件夹的ID
     public static final int ID_TRASH_FOLER = -3;
 
+    // 定义日志的额外信息
     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";
@@ -42,18 +51,22 @@ public class Notes {
     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";
 
+    // 定义小部件类型
     public static final int TYPE_WIDGET_INVALIDE      = -1;
     public static final int TYPE_WIDGET_2X            = 0;
     public static final int TYPE_WIDGET_4X            = 1;
 
     public static class DataConstants {
+        // 定义一个NOTE变量，值为TextNote.CONTENT_ITEM_TYPE
         public static final String NOTE = TextNote.CONTENT_ITEM_TYPE;
+        // 定义一个CALL_NOTE变量，值为CallNote.CONTENT_ITEM_TYPE
         public static final String CALL_NOTE = CallNote.CONTENT_ITEM_TYPE;
     }
 
     /**
      * Uri to query all notes and folders
      */
+    // 定义一个Uri对象，用于存储note的路径
     public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note");
 
     /**
@@ -61,6 +74,7 @@ public class Notes {
      */
     public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data");
 
+    // 定义一个接口NoteColumns
     public interface NoteColumns {
         /**
          * The unique ID for a row
@@ -116,7 +130,6 @@ public class Notes {
          * <P> Type: INTEGER (long) </P>
          */
         public static final String BG_COLOR_ID = "bg_color_id";
-
         /**
          * For text note, it doesn't has attachment, for multi-media
          * note, it has at least one attachment
@@ -167,11 +180,13 @@ public class Notes {
         public static final String VERSION = "version";
     }
 
+    // 定义接口DataColumns
     public interface DataColumns {
         /**
          * The unique ID for a row
          * <P> Type: INTEGER (long) </P>
          */
+        // 定义一个静态变量ID，值为"_id"
         public static final String ID = "_id";
 
         /**
@@ -179,31 +194,31 @@ public class Notes {
          * <P> Type: Text </P>
          */
         public static final String MIME_TYPE = "mime_type";
-
+        // 定义一个静态变量ID，值为"mime_type"
         /**
          * The reference id to note that this data belongs to
          * <P> Type: INTEGER (long) </P>
          */
         public static final String NOTE_ID = "note_id";
-
+        // 定义一个静态变量ID，值为"note_id"
         /**
          * Created data for note or folder
          * <P> Type: INTEGER (long) </P>
          */
         public static final String CREATED_DATE = "created_date";
-
+        // 定义一个静态变量ID，值为"created_date"
         /**
          * Latest modified date
          * <P> Type: INTEGER (long) </P>
          */
         public static final String MODIFIED_DATE = "modified_date";
-
+        // 定义一个静态变量ID，值为"modified_date"
         /**
          * Data's content
          * <P> Type: TEXT </P>
          */
         public static final String CONTENT = "content";
-
+        // 定义一个静态变量ID，值为"content"
 
         /**
          * Generic data column, the meaning is {@link #MIMETYPE} specific, used for
@@ -241,19 +256,25 @@ public class Notes {
         public static final String DATA5 = "data5";
     }
 
+    
     public static final class TextNote implements DataColumns {
         /**
          * Mode to indicate the text in check list mode or not
          * <P> Type: Integer 1:check list mode 0: normal mode </P>
          */
+// 定义一个静态变量MODE，值为DATA1
         public static final String MODE = DATA1;
 
+// 定义一个静态变量MODE_CHECK_LIST，值为1
         public static final int MODE_CHECK_LIST = 1;
 
+// 定义一个静态变量CONTENT_TYPE，值为"vnd.android.cursor.dir/text_note"
         public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note";
 
+// 定义一个静态变量CONTENT_ITEM_TYPE，值为"vnd.android.cursor.item/text_note"
         public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note";
 
+// 定义一个静态变量CONTENT_URI，值为Uri.parse("content://" + AUTHORITY + "/text_note")
         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note");
     }
 
@@ -268,12 +289,16 @@ public class Notes {
          * Phone number for this record
          * <P> Type: TEXT </P>
          */
+        // 定义一个静态常量，用于存储电话号码
         public static final String PHONE_NUMBER = DATA3;
 
+        // 定义一个静态常量，用于存储内容类型
         public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note";
 
+        // 定义一个静态常量，用于存储内容项类型
         public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note";
 
+        // 定义一个静态常量，用于存储内容URI
         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note");
     }
 }