【转】google推出的SwipeRefreshLayout下拉刷新用法

 1     <android.support.v4.widget.SwipeRefreshLayout  
 2         android:id="@+id/swipe_refresh"  
 3         android:layout_width="match_parent"  
 4         android:layout_height="match_parent" >  
 5       
 6         <ListView  
 7             android:id="@+id/listview"  
 8             android:layout_width="match_parent"  
 9             android:layout_height="match_parent" >  
10         </ListView>  
11     </android.support.v4.widget.SwipeRefreshLayout>  

 1 /** 
 2 * 主页  
 3  * @author w.w  
 4  */  
 5 public class MainActivity extends Activity implements SwipeRefreshLayout.OnRefreshListener {  
 6   
 7     /**  
 8      * 给ListView添加下拉刷新  
 9      */  
10     private SwipeRefreshLayout swipeLayout;  
11       
12     /**  
13      * ListView  
14      */  
15     private ListView listView;  
16       
17     /**  
18      * ListView适配器  
19      */  
20     private ListViewAdapter adapter;  
21       
22     private List<ItemInfo> infoList;  
23       
24     @Override  
25     protected void onCreate(Bundle savedInstanceState) {  
26         super.onCreate(savedInstanceState);  
27         setContentView(R.layout.activity_main);  
28   
29         swipeLayout = (SwipeRefreshLayout) this.findViewById(R.id.swipe_refresh);  
30         swipeLayout.setOnRefreshListener(this);  
31           
32         // 顶部刷新的样式  
33         swipeLayout.setColorScheme(android.R.color.holo_red_light, android.R.color.holo_green_light,  
34                 android.R.color.holo_blue_bright, android.R.color.holo_orange_light);  
35   
36         infoList = new ArrayList<ItemInfo>();  
37         ItemInfo info = new ItemInfo();  
38         info.setName("coin");  
39         infoList.add(info);  
40         listView = (ListView) this.findViewById(R.id.listview);  
41         adapter = new ListViewAdapter(this, infoList);  
42         listView.setAdapter(adapter);  
43     }  
44   
45     public void onRefresh() {  
46         new Handler().postDelayed(new Runnable() {  
47             public void run() {  
48                 swipeLayout.setRefreshing(false);  
49                 ItemInfo info = new ItemInfo();  
50                 info.setName("coin-refresh");  
51                 infoList.add(info);  
52                 adapter.notifyDataSetChanged();  
53             }  
54         }, 500);  
55     }  
56 }