Answering my own question:
If using the draw method on an ImageView, the transparent color is
treated as transparent. No extra effort is required. The Z-order is in
order of the draw operations (not surprising).
Example code:
if ( bm1 != null ) {
canvas.drawBitmap(bm1, (Rect)null, r, new Paint());
}
if ( bm2 != null ) {
canvas.drawBitmap(bm2, (Rect)null, r, new Paint());
}
}
On Jan 9, 3:19 pm, SChaser <[email protected]> wrote:
> I have an app that downloads several gifs and then needs to overlay
> them (not all centered at the same point), honoring the transparency
> of the images.
>
> I am currently planning to subclass ImageView.
>
> What is an efficient way to do the overlay/merge?
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