android velocityTracker滑动速度检测器简单使用

关键代码：

@Override

public boolean onTouchEvent(MotionEvent event) {

// TODO Auto-generated method stub

VelocityTracker vt = VelocityTracker.obtain();
//1.获得VelocityTracker

vt.addMovement(event);
//2.添加要监听的event

vt.computeCurrentVelocity(1000);
//3.计算速率

Log.d(TAG, vt.getXVelocity()+"--"+vt.getYVelocity());
//4.得到x方向和y方向的速率

return super.onTouchEvent(event);

}

demo下载链接http://download.csdn.net/detail/xidianhuihui/6997427