安卓开发_浅谈Fragment之ListFragment

<uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="21" />

 1 package com.xqx.listviewfragment;
 2 
 3 import android.os.Bundle;
 4 import android.app.Activity;
 5 import android.app.FragmentManager;
 6 import android.app.FragmentTransaction;
 7 import android.view.Menu;
 8 
 9 public class MainActivity extends Activity {
10 
11     @Override
12     protected void onCreate(Bundle savedInstanceState) {
13         super.onCreate(savedInstanceState);
14         setContentView(R.layout.activity_main);
15         MyListFragment myfragment = new MyListFragment();
16         //创建管理者对象
17         FragmentManager manager = getFragmentManager();
18         //创建事务对象
19         FragmentTransaction action = manager.beginTransaction();
20         //添加
21         action.add(R.id.view_listfragment, myfragment);
22         //提交事务
23         action.commit();
24     }
25 
26 }

 1 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:tools="http://schemas.android.com/tools"
 3     android:layout_width="match_parent"
 4     android:layout_height="match_parent"
 5     android:paddingBottom="@dimen/activity_vertical_margin"
 6     android:paddingLeft="@dimen/activity_horizontal_margin"
 7     android:paddingRight="@dimen/activity_horizontal_margin"
 8     android:paddingTop="@dimen/activity_vertical_margin"
 9     tools:context=".MainActivity" >
10 
11     <fragment 
12         android:layout_width="match_parent"
13         android:layout_height="match_parent"
14         android:id="@+id/view_listfragment"
15         android:name="com.xqx.listviewfragment.MyListFragment"
16         />
17 
18 </RelativeLayout>

 1 package com.xqx.listviewfragment;
 2 
 3 import java.util.ArrayList;
 4 import java.util.List;
 5 
 6 import android.app.ListFragment;
 7 import android.os.Bundle;
 8 import android.view.View;
 9 import android.widget.ArrayAdapter;
10 import android.widget.ListView;
11 import android.widget.Toast;
12 
13 public class MyListFragment extends ListFragment{
14     private List<String> list; //适配器的数据源
15     private ArrayAdapter adapter; //ListView的适配器
16     
17     @Override
18     public void onCreate(Bundle savedInstanceState) {
19         // TODO Auto-generated method stub
20         super.onCreate(savedInstanceState);
21         //给数据源添加数据
22         list = new ArrayList<String>();
23         list.add("第一条数据");
24         list.add("第二条数据");
25         list.add("第三条数据");
26         list.add("第四条数据");
27         adapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1,list);
28         
29     }
30     
31     //设置适配器 必须放在onCreateView之后，因为在onCreateView初始化视图
32     @Override
33     public void onActivityCreated(Bundle savedInstanceState) {
34         // TODO Auto-generated method stub
35         super.onActivityCreated(savedInstanceState);
36         //给ListView设置适配器
37         setListAdapter(adapter);
38     }
39     
40     @Override
41     public void onListItemClick(ListView l, View v, int position, long id) {
42         // TODO Auto-generated method stub
43         super.onListItemClick(l, v, position, id);
44         Toast.makeText(getActivity(), "点击了"+getListAdapter().getItem(position).toString(), 1).show();
45     }
46 }