手机屏幕抖动的形式实现

昨天qq该小组被要求类别似QQ聊天窗口是如何实现的抖动效果。在这里，我只是意识到了什么，贴上代码：

<span style="font-family:Courier New;">                final View decorView = ((ViewGroup) findViewById(android.R.id.content)).getChildAt(0);

		Vibrator vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);
		vibrator.vibrate(new long[] { 200, 100, 200, 100 }, 3);

		TranslateAnimation translateAnimation = new TranslateAnimation(50, 150,200, 50);
		translateAnimation.setDuration(2000);
		Interpolator interpolator = new CycleInterpolator(5);
		translateAnimation.setInterpolator(interpolator);
		decorView.startAnimation(translateAnimation);</span>