Android-从下至上逐步显示图像

Question

Essentially what I have is a transparent image that I want to slowly "fill in" from bottom to top over time.

I'm aware of using ClipDrawable and the its level value, but that would fill in from the top. Is there any way to reverse that? Thanks!

Answer 1

ClipDrawable works just fine for this. Just use Gravity.BOTTOM when you create it.

Drawable d = ContextCompat.getDrawable(this, R.drawable.my_drawable);
ClipDrawable clip = new ClipDrawable(d, Gravity.BOTTOM, ClipDrawable.VERTICAL);