Update FoldersListAdapter.java

main
pf45q8f3g 7 months ago
parent 939cb57001
commit 9685bc719e

@ -1,87 +1,114 @@
/* /*
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) * (c) 2010-2011, MiCode (www.micode.net)
* *
* Licensed under the Apache License, Version 2.0 (the "License"); * 使 Apache License, Version 2.0
* you may not use this file except in compliance with the License. * 使
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 * 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; package net.micode.notes.ui;
import android.content.Context; import android.content.Context;
import android.database.Cursor; import android.database.Cursor;
import android.view.View; import android.view.View;
import android.view.ViewGroup; import android.view.ViewGroup;
import android.widget.CursorAdapter; import android.widget.CursorAdapter;
import android.widget.LinearLayout; import android.widget.LinearLayout;
import android.widget.TextView; import android.widget.TextView;
import net.micode.notes.R; import net.micode.notes.R;
import net.micode.notes.data.Notes; import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.NoteColumns; import net.micode.notes.data.Notes.NoteColumns;
/**
* FoldersListAdapter
* CursorAdapter ListView
*/
public class FoldersListAdapter extends CursorAdapter {
public static final String[] PROJECTION = {
NoteColumns.ID,
NoteColumns.SNIPPET
}; // 查询数据库时需要的列
public class FoldersListAdapter extends CursorAdapter { public static final int ID_COLUMN = 0;
//CursorAdapter是Cursor和ListView的接口 public static final int NAME_COLUMN = 1;
//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) { * FoldersListAdapter
//ViewGroup是容器 * @param context
return new FolderListItem(context); * @param c
}//创建一个文件夹,对于各文件夹中子标签的初始化 */
public FoldersListAdapter(Context context, Cursor c) {
super(context, c);
}
@Override /**
public void bindView(View view, Context context, Cursor cursor) { *
if (view instanceof FolderListItem) { * @param context
String folderName = (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context * @param cursor
.getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN); * @param parent
((FolderListItem) view).bind(folderName); * @return
} */
}//将各个布局文件绑定起来 @Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
return new FolderListItem(context); // 创建一个新的文件夹列表项
}
public String getFolderName(Context context, int position) { /**
Cursor cursor = (Cursor) getItem(position); *
return (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context * @param view
.getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN); * @param context
}//根据数据库中标签的ID得到标签的各项内容 * @param cursor
*/
@Override
public void bindView(View view, Context context, Cursor cursor) {
if (view instanceof FolderListItem) {
String folderName = (cursor.getLong(ID_COLUMN) == Notes.ID_ROOT_FOLDER) ? context
.getString(R.string.menu_move_parent_folder) : cursor.getString(NAME_COLUMN);
((FolderListItem) view).bind(folderName); // 绑定文件夹名称
}
}
private class FolderListItem extends LinearLayout { /**
private TextView mName; *
* @param context
* @param position
* @return
*/
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);
}
public FolderListItem(Context context) { /**
super(context); * FolderListItem
//操作数据库 */
inflate(context, R.layout.folder_list_item, this); private class FolderListItem extends LinearLayout {
//根据布局文件的名字等信息将其找出来 private TextView mName;
mName = (TextView) findViewById(R.id.tv_folder_name);
}
public void bind(String name) { /**
mName.setText(name); * FolderListItem
} * @param context
} */
public FolderListItem(Context context) {
super(context);
inflate(context, R.layout.folder_list_item, this); // 加载布局
mName = (TextView) findViewById(R.id.tv_folder_name); // 获取文件夹名称文本视图
}
} /**
*
* @param name
*/
public void bind(String name) {
mName.setText(name); // 设置文件夹名称
}
}
}
Loading…
Cancel
Save