HomeActivity.java 文件源码

void revealPostingProgress() {
    Animator reveal = ViewAnimationUtils.createCircularReveal(fabPosting,
            (int) fabPosting.getPivotX(),
            (int) fabPosting.getPivotY(),
            0f,
            fabPosting.getWidth() / 2)
            .setDuration(600L);
    reveal.setInterpolator(AnimUtils.getFastOutLinearInInterpolator(this));
    reveal.start();
    AnimatedVectorDrawable uploading =
            (AnimatedVectorDrawable) getDrawable(R.drawable.avd_uploading);
    if (uploading != null) {
        fabPosting.setImageDrawable(uploading);
        uploading.start();
    }
}