Update FoldersListAdapter.java

src/MiNotes-master/app/src/main/java/net/micode/notes/ui/FoldersListAdapter.java

@@ -1,21 +1,5 @@
-/*
- * 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.ui;
-
+ 
 import android.content.Context;
 import android.database.Cursor;
 import android.view.View;
@@ -23,31 +7,36 @@ import android.view.ViewGroup;
 import android.widget.CursorAdapter;
 import android.widget.LinearLayout;
 import android.widget.TextView;
-
+ 
 import net.micode.notes.R;
 import net.micode.notes.data.Notes;
 import net.micode.notes.data.Notes.NoteColumns;
-
+ 
-
+ 
 public class FoldersListAdapter extends CursorAdapter {
+	//CursorAdapter是Cursor和ListView的接口
+	//FoldersListAdapter继承了CursorAdapter的类
+	//主要作用是便签数据库和用户的交互
+	//这里就是用folder（文件夹）的形式展现给用户
     public static final String [] PROJECTION = {
         NoteColumns.ID,
         NoteColumns.SNIPPET
-    };
+    };//调用数据库中便签的ID和片段
-
+ 
     public static final int ID_COLUMN   = 0;
     public static final int NAME_COLUMN = 1;
-
+ 
     public FoldersListAdapter(Context context, Cursor c) {
         super(context, c);
         // TODO Auto-generated constructor stub
-    }
+    }//数据库操作
-
+ 
     @Override
     public View newView(Context context, Cursor cursor, ViewGroup parent) {
-        return new FolderListItem(context);
+        //ViewGroup是容器
-    }
+    	return new FolderListItem(context);
-
+    }//创建一个文件夹，对于各文件夹中子标签的初始化
+ 
     @Override
     public void bindView(View view, Context context, Cursor cursor) {
         if (view instanceof FolderListItem) {
@@ -55,26 +44,28 @@ public class FoldersListAdapter extends CursorAdapter {
                     .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
             ((FolderListItem) view).bind(folderName);
         }
-    }
+    }//将各个布局文件绑定起来
-
+ 
     public String getFolderName(Context context, int position) {
         Cursor cursor = (Cursor) getItem(position);
         return (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context
                 .getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
-    }
+    }//根据数据库中标签的ID得到标签的各项内容
-
+ 
     private class FolderListItem extends LinearLayout {
         private TextView mName;
-
+ 
         public FolderListItem(Context context) {
             super(context);
+            //操作数据库
             inflate(context, R.layout.folder_list_item, this);
+            //根据布局文件的名字等信息将其找出来
             mName = (TextView) findViewById(R.id.tv_folder_name);
         }
-
+ 
         public void bind(String name) {
             mName.setText(name);
         }
     }
-
+ 
 }