SafeView.java 文件源码

/**
 * 启动动画 回弹效果
 *
 */
private void startBackAnimator() {
    PropertyValuesHolder xValuesHolder = PropertyValuesHolder.ofFloat("x", canvasRotateX, 0);
    PropertyValuesHolder yValuesHolder = PropertyValuesHolder.ofFloat("y", canvasRotateY, 0);
    touchAnimator = ValueAnimator.ofPropertyValuesHolder(xValuesHolder, yValuesHolder).setDuration(700);
    touchAnimator.setInterpolator(new BounceInterpolator());
    touchAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
        @Override
        public void onAnimationUpdate(ValueAnimator animation) {
            canvasRotateY = (Float) animation.getAnimatedValue("y");
            canvasRotateX = (Float) animation.getAnimatedValue("x");
            invalidate();
        }
    });
    touchAnimator.start();
}