我使用ZBarSDK来做一个二维码扫描的app,然后用SurfaceView来展示。我在此的基础上还打算添加一个扫描框,类似微信那样。结果我添加TranslateAnimation之后发现动画很卡。请问这是什么问题呢?scanLine.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {        @Override
        public void onGlobalLayout() {
            Logger.i(CameraOverlay.class, "addOnGlobalLayoutListener");
            scanLine.setDrawingCacheEnabled(true);
            scanLine.clearAnimation();
            scanLine.setAnimation(null);
            TranslateAnimation animation = new TranslateAnimation(0, scanRect.width() - 10, 0, 0);
            animation.setRepeatCount(-1);
            animation.setDuration(2600);
            scanLine.startAnimation(animation);
        }
    });
animationcamera性能