Android雙擊處理

Android雙擊處理

這次要繼續介紹Gesture類，這個類提供了一個事件處理

public boolean onDoubleTapEvent(MotionEvent e) {}

好的讓我們快速進入這個主題吧，方法很簡單，只需要將Activity的onTouch()事件交給Guesture來處理就可以了。

代碼:

public class MyGesture extends Activity implements OnTouchListener {     private GestureDetector mGestureDetector;     public MyGesture() {     mGestureDetector = new GestureDetector(new MySimpleGesture());     }         public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.main);         TextView tv = (TextView) findViewById(R.id.tv);         tv.setOnTouchListener(this);         tv.setFocusable(true);         tv.setClickable(true);         tv.setLongClickable(true);     }     public boolean onTouch(View v, MotionEvent event) {     if (event.getAction() == MotionEvent.ACTION_UP) {          Log.i("MyGesture", "MotionEvent.ACTION_UP");     }         return mGestureDetector.onTouchEvent(event);     }         private class MySimpleGesture extends SimpleOnGestureListener {     // 按兩下的第二下Touch down時觸發         public boolean onDoubleTap(MotionEvent e) {             Log.i("MyGesture", "onDoubleTap");             return super.onDoubleTap(e);         }                 // 按兩下的第二下Touch down和up都會觸發，可用e.getAction()區分         public boolean onDoubleTapEvent(MotionEvent e) {             Log.i("MyGesture", "onDoubleTapEvent");             return super.onDoubleTapEvent(e);         }     } }