<?xml version="1.0" encoding="utf-8"?><RelativeLayout 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:paddingLeft="@dimen/activity_horizontal_margin"android:paddingRight="@dimen/activity_horizontal_margin"android:paddingTop="@dimen/activity_vertical_margin"android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">  <android.support.v4.widget.SwipeRefreshLayout    android:id="@+id/swipeRefreshLayout"    android:layout_width="wrap_content"    android:layout_height="wrap_content"  >   <ListView     android:id="@+id/listView"     android:layout_width="match_parent"     android:layout_height="wrap_content">   </ListView>  </android.support.v4.widget.SwipeRefreshLayout></RelativeLayout>

public class MainActivity extends AppCompatActivity implements SwipeRefreshLayout.OnRefreshListener{private static final int REFRESH_STATUS =0;private ListView myListView;private SwipeRefreshLayout mySwipeRefreshLayout;private ArrayAdapter<String> listAdapter;private List<String> listIDE = new ArrayList<String>(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);}@Overridepublic void onRefresh() {  refreshHandler.sendEmptyMessageDelayed(REFRESH_STATUS, 1500); }}