On Tue, Jul 31, 2012 at 05:57:47AM -0700, Numair Qadir wrote:
> I want to merge two bitmaps, here is my code
I was just going to point you to the right page in the dev guide, but I
don't remember if there even is one (I learned this from a book, "Pro
Android Media"). Be advised that with larger bitmaps, you can easily
cause an Out Of Memory error and, if that isn't caught, a force close,
so if you need to do this with LARGE bitmaps, you'll have to use the NDK.
// blend src1 and src2 into dest (must be same size and, I think they
// have to be the same configuration, too, e.g., both ARGB_8888)
Bitmap dest = Bitmap.createBitmap(width, height, src1.getConfig());
Canvas canvas = new Canvas(src2);
Paint paint = new Paint();
canvas = new Canvas(src2);
paint = new Paint();
canvas.drawBitmap(src1, 0, 0, paint);
paint.setXfermode(new
PorterDuffXfermode(android.graphics.PorterDuff.Mode.SRC_OVER));
canvas.drawBitmap(dest, 0, 0, paint);
PorterDuff has quite a few different modes, so check out the dev guide's
page on PorterDuff.Mode for more information.
Later,
--jim
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