CommentsActivity.java 文件源码

private void startIntroAnimation() {
    ViewCompat.setElevation(getToolbar(), 0);
    contentRoot.setScaleY(0.1f);
    contentRoot.setPivotY(drawingStartLocation);
    llAddComment.setTranslationY(200);

    contentRoot.animate()
            .scaleY(1)
            .setDuration(200)
            .setInterpolator(new AccelerateInterpolator())
            .setListener(new AnimatorListenerAdapter() {
                @Override
                public void onAnimationEnd(Animator animation) {
                    ViewCompat.setElevation(getToolbar(), Utils.dpToPx(8));
                    animateContent();
                }
            })
            .start();
}