ContainersLayout.java 文件源码

private void animateOutFrameDetails() {
    ViewUtils.onLaidOut(frameDetails, new Runnable() {
        @Override
        public void run() {
            if (!frameDetails.isShown()) {
                return;
            }
            ObjectAnimator alpha = ObjectAnimator.ofFloat(frameDetails, View.ALPHA, 1f, 0f);
            ObjectAnimator translate = ofFloat(frameDetails, View.TRANSLATION_Y, 0f, frameDetails.getHeight() * 0.3f);

            AnimatorSet set = new AnimatorSet();
            set.playTogether(alpha, translate);
            set.setDuration(ANIM_DURATION);
            set.setInterpolator(new FastOutLinearInInterpolator());
            set.addListener(new AnimatorListenerAdapter() {
                @Override
                public void onAnimationEnd(Animator animation) {
                    super.onAnimationEnd(animation);
                    frameDetails.setAlpha(1f);
                    frameDetails.setTranslationY(0);
                    frameDetails.setVisibility(View.GONE);
                }
            });
            set.start();
        }
    });
}