在android项目中使用SwipeRefreshLayout组件实现下拉小球式刷新功能

<?xml version="1.0" encoding="utf-8"?>


  
   
   
  

public class MainActivity extends AppCompatActivity implements SwipeRefreshLayout.OnRefreshListener{

private static final int REFRESH_STATUS =0;
private ListView myListView;
private SwipeRefreshLayout mySwipeRefreshLayout;
private ArrayAdapter listAdapter;
private List listIDE = new ArrayList(Arrays.asList("Visual Studio", "Android Studio", "Eclipse", "Xcode"));
private Handler refreshHandler = new Handler()
{
  public void handleMessage(android.os.Message msg)
  {
    switch (msg.what)
    {
      case REFRESH_STATUS:
        listIDE.removeAll(listIDE);
        listIDE.addAll(Arrays.asList("C#", "Java", "C++","Object-C"));
        listAdapter.notifyDataSetChanged();
        mySwipeRefreshLayout.setRefreshing(false);
        break;

    }
  };
};
protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  myListView = (ListView) findViewById(R.id.listView);
  mySwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout);

  mySwipeRefreshLayout.setOnRefreshListener(this);
  mySwipeRefreshLayout.setColorSchemeResources(android.R.color.holo_blue_bright, android.R.color.holo_green_light,
      android.R.color.holo_orange_light, android.R.color.holo_red_light);
  listAdapter = new ArrayAdapter(this,android.R.layout.simple_list_item_1,listIDE);
  myListView.setAdapter(listAdapter);
}

@Override
public void onRefresh() {
  refreshHandler.sendEmptyMessageDelayed(REFRESH_STATUS, 1500);
 }
}