Android巧用XListView实现万能下拉刷新控件

 @Override
 public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
 
 int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,
 MeasureSpec.AT_MOST);
 super.onMeasure(widthMeasureSpec, expandSpec);
 }

 @Override
 public boolean dispatchTouchEvent(MotionEvent ev) {
 // TODO Auto-generated method stub
 if (ev.getAction() == MotionEvent.ACTION_MOVE) {
 return true;
 }
 return super.dispatchTouchEvent(ev);
 }

public class MainActivity extends Activity implements Callback{
 
 private XListView mXListView;
 
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  mXListView = (XListView)findViewById(R.id.main_xlv);
  View header = LayoutInflater.from(this).inflate(R.layout.view_header, null);
  TextView headerTv = (TextView)header.findViewById(R.id.tv);
  headerTv.setTextSize(28);
  mXListView.setAdapter(new EmptyAdapter());
 mXListView.addHeaderView(header);
 mXListView.setOverScrollMode(View.OVER_SCROLL_NEVER);
 mXListView.showHeader(true);
 mXListView.setIsAutoLoadMore(false);
 mXListView.setCallback(this);
 }
 
 /** 
 * @see com.dighammer.xlistview.XListView.Callback#onHeaderTriggerd()
 */
 @Override
 public void onHeaderTriggerd() {
 // TODO Auto-generated method stub
 mXListView.headerFinished();
 }
 
 
 /** 
 * @see com.dighammer.xlistview.XListView.Callback#onFooterTriggerd()
 */
 @Override
 public void onFooterTriggerd() {
 // TODO Auto-generated method stub
 
 }
 
}