Hello!
I'm creating a simple game for Android and faced with a problem: Idea
is to have a huge "map" image file and re-draw only small part of it
(320*480) depending on user actions.
I didn't find a better solution than using "public static Bitmap
createBitmap (Bitmap source, int x, int y, int width, int height)"
method and decided to try it (expected huge performance degradation),
but actually it's appeared that this method changes source bitmap and
when i call it second time source size is significantly reduced. For
instance this code:
int bitHeight = mBackgroundImage.getHeight();
int bitWidth = mBackgroundImage.getWidth();
Bitmap curMap = Bitmap.createBitmap(mBackgroundImage,
0, mY, 320, 480);
canvas.drawBitmap(curMap, 0, 0, null);
gives 320*960 (initial source image size) size for the first time and
320*455 for the second call
I hope this is not a best solution and look forward to hearing a new
direction or at least clarification on createBitmap method.
p.s i'm not a native english speaker and i apologise for possible
mistakes.
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