Still digging but I have example code. I am able to capture the
bitmap, but now the screen flickers. The idea here is that the
refresh_background flag gets raised when I need to hold the
background. Advice super appreciated (especially if I am on the
totally wrong track!).
private boolean refresh_background = true;
private void doDraw(Canvas canvas) {
if (refresh_background || background == null) background =
refresh_background(canvas);
canvas.drawBitmap(background, 0, 0, mPaint);
}
private Bitmap refresh_background(Canvas canvas){
refresh_background = false;
canvas.drawColor(Color.WHITE);
canvas.drawCircle((float)200, (float)200, 50, mPaint);
System.out.println ("draw background");
return (getDrawingCache());
}
On Mar 28, 6:05 pm, robotissues <[email protected]> wrote:
> I am unsure of the jargon so please bear with me, I am seeking advice
> on the best way to go about drawing the graphics for an app I am
> developing.
>
> Imagine you are creating a game of checkers, where you can drag/drop
> one piece at a time to a blank space on the board. When the piece is
> being moved, it seems to me that you should not need to redraw all of
> the pieces that are not being moved.
>
> Using the LunarLander example, is there a way to store the background
> image and only draw the piece being moved over it? I have been trying
> to figure out a way to capture the canvas as an bitmap that is
> occasionally refreshed. Is there a way to do this?
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