android使用PullToRefresh框架实现ListView下拉刷新上拉加载更多

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
 xmlns:tools="http://schemas.android.com/tools" 
 android:layout_width="match_parent" 
 android:layout_height="match_parent" 
 android:orientation="vertical"> 
 
 <!-- 我们添加了一个属性：ptr:ptrMode="both" ，意思：上拉和下拉都支持。 
  可选值为：disabled（禁用下拉刷新），pullFromStart（仅支持下拉刷新）， 
  pullFromEnd（仅支持上拉刷新），both（二者都支持），manualOnly（只允许手动触发） --> 
 <!-- 
  ptr:ptrAnimationStyle="rotate" 
  FlipLoadingLayout为iOS风格的箭头颠倒的刷新动画 
  ptr:ptrAnimationStyle="flip" 
  RotateLoadingLayout为android风格的图片旋转动画 --> 
 <com.ptrflv.www.pulltorefreshlistview.PullToRefreshListView 
  xmlns:ptr="http://schemas.android.com/apk/res-auto" 
  android:id="@+id/pull_to_refresh_listview" 
  android:layout_width="wrap_content" 
  android:layout_height="wrap_content" 
  ptr:ptrMode="both" 
  ptr:ptrAnimationStyle="flip" 
   /> 
 
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?> 
<resources> 
 
 <!-- 上拉刷新 --> 
 <!-- …代表三个点 ... --> 
 <string name="pull_to_refresh_pull_label">向下拉刷新…</string> 
 <string name="pull_to_refresh_release_label">松开更新…</string> 
 <string name="pull_to_refresh_refreshing_label">正在加载…</string> 
 
 <!-- 下拉加载更多 --> 
 <string name="pull_to_refresh_from_bottom_pull_label">向下拉加载更多…</string> 
 <string name="pull_to_refresh_from_bottom_release_label">松开加载更多…</string> 
 <string name="pull_to_refresh_from_bottom_refreshing_label">正在加载…</string> 
 
</resources> 

public class MainActivity extends Activity { 
 
 private PullToRefreshListView pullToRefreshListView; 
 //adapter的数据源 
 private List<String> numList=new ArrayList<String>(); 
 private ArrayAdapter<String> arrayAdapter; 
  
 @Override 
 protected void onCreate(Bundle savedInstanceState) { 
  super.onCreate(savedInstanceState); 
  setContentView(R.layout.activity_main); 
  pullToRefreshListView=(PullToRefreshListView) findViewById(R.id.pull_to_refresh_listview); 
  //初始化数据 
  for(int x=0;x<18;x++){ 
   numList.add(""+x); 
  } 
   
  arrayAdapter = new ArrayAdapter<String>(this, R.layout.item_listview,R.id.textview,numList); 
  pullToRefreshListView.setAdapter(arrayAdapter); 
   
  //设定刷新监听 
  pullToRefreshListView.setOnRefreshListener(new OnRefreshListener<ListView>() { 
 
   @Override 
   public void onRefresh(PullToRefreshBase<ListView> refreshView) { 
     
    String label = DateUtils.formatDateTime(getApplicationContext(), System.currentTimeMillis(), 
       DateUtils.FORMAT_SHOW_TIME | DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_ABBREV_ALL); 
     
     // 显示最后更新的时间 
     refreshView.getLoadingLayoutProxy() .setLastUpdatedLabel(label); 
     
     //代表下拉刷新 
     if(refreshView.getHeaderLayout().isShown()){ 
      
      new Thread(){ 
       public void run() { 
        try { 
         sleep(1000); 
         
         handler.sendEmptyMessage(99); 
         
        } catch (InterruptedException e) { 
         e.printStackTrace(); 
        } 
       }; 
      }.start(); 
     } 
     
     //代表下拉刷新 
     if(refreshView.getFooterLayout().isShown()){ 
      new Thread(){ 
       public void run() { 
        try { 
         sleep(1000); 
         
         handler.sendEmptyMessage(98); 
         
        } catch (InterruptedException e) { 
         e.printStackTrace(); 
        } 
       }; 
      }.start(); 
     } 
     
   } 
  }); 
   
 } 
  
 private Handler handler=new Handler(){ 
  public void handleMessage(android.os.Message msg) { 
    
   if(msg.what==99){ 
    numList.add(0, "英雄联盟"); 
    arrayAdapter.notifyDataSetChanged(); 
    //关闭刷新的动画 
    pullToRefreshListView.onRefreshComplete(); 
   } 
    
   if(msg.what==98){ 
    numList.add(numList.size(), "魔兽世界"); 
    arrayAdapter.notifyDataSetChanged(); 
    //关闭刷新的动画 
    pullToRefreshListView.onRefreshComplete(); 
   } 
    
  }; 
 }; 
 
}