Android 手势--滑动

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界面类：

public class MainActivity extends Activity {private GestureDetector myGD;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);  super.onCreate(savedInstanceState);myGD = new GestureDetector(this,new WbGestureListener());LinearLayout ll=(LinearLayout)findViewById(R.id.ll);          ll.setOnTouchListener(this);          ll.setLongClickable(true); }private class WBTouhListener implements OnTouchListener{@Overridepublic boolean onTouch(View v, MotionEvent event) {return myGD.onTouchEvent(event);}}}

手势接口类：

public class WbGestureListener implements OnGestureListener{    private static final int SWIPE_HORIZONTAL_MIN_DISTANCE = 120;  //横向最小滑动距离    private static final int SWIPE_VERTICAL_MIN_DISTANCE = 120;    //纵向最小滑动距离    private static final int SWIPE_THRESHOLD_VELOCITY = 200;@Overridepublic boolean onDown(MotionEvent e) {return false;}@Overridepublic boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,float velocityY) {float Y_distance = Math.abs(e1.getY() - e2.getY());if(Y_distance < SWIPE_VERTICAL_MIN_DISTANCE){if ((e1.getX() - e2.getX() > SWIPE_HORIZONTAL_MIN_DISTANCE)                && (Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY)) {...(要执行的动作)        } else if ((e2.getX() - e1.getX() > SWIPE_HORIZONTAL_MIN_DISTANCE)                && (Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY)) {...(要执行的动作)        }    }            return false;}@Overridepublic void onLongPress(MotionEvent arg0) {}@Overridepublic boolean onScroll(MotionEvent arg0, MotionEvent arg1, float arg2,float arg3) {return false;}@Overridepublic boolean onSingleTapUp(MotionEvent arg0) {return false;}@Overridepublic void onShowPress(MotionEvent e) {}}

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