Hello, guys!
I've run into a little problem, need some advice.
I'm painting in SurfaceView, and I need to constantly fade one screen-sized
bitmap into another. Something like a slideshow.
I even simplified this drawing to draw one bitmap for testing purposes, and
still I notice the slowness.
The code does something like this (pseudo):
void drawFrame()
{
mPaint.setAlpha(progress); // progress varies from 0 to 255
canvas.drawBitmap(mBitmap, 0, 0, mPaint); //mBitmap has screensize
}
and with this I get *noticable* lags while drawing. Well, these lags are not
completely lenghty, but they are noticable indeed.
And if I add
canvas.drawColor(Color.BLACK);
to the beginning of the function then it becomes dog slow.
Is this supposed to be so? Am I doing something wrong?
Any suggestions on how could I improve this situation?
Thanks in advance,
Dmitry.
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