i also have the same problem when I want to flip and image around, i
have to create a new bitmap. is there a way to not have to create a
new bitmap every time:
renderMatrix.preScale((xFlipPic?-1:1), (yFlipPic?-1:1));
newbitMap = Bitmap.createBitmap(image, 0, 0, image.getWidth
(),image.getHeight(), renderMatrix, false);
On Mar 22, 5:19 pm, William <[email protected]> wrote:
> sorry the code should be
>
> Matrix matrix = new Matrix();
> matrix.postRotate(90);
>
> Canvas g = new Canvas(image2);
>
> g.drawBitmap(
> Bitmap.createBitmap(image, 0, 0,
> image.getWidth
> (), image.getHeight(), matrix, true)
> , 0, 0, null);
>
> On Mar 22, 5:18 pm, William <[email protected]> wrote:
>
> > My goal is the draw a bitmap onto another bitmap butrotated90
> > degress. whats the most efficient way to do that. My current method
> > is as follows which is horribly bad because it creates a new bitmap
> > every time.
>
> > //i am taking image and drawing itrotatedonto image2
>
> > Matrix matrix = og.getMatrix();
> > matrix.postRotate(90);
>
> > Canvas g = new Canvas(image2);
>
> > g.drawBitmap(
> > Bitmap.createBitmap(image, 0, 0,
> > image.getWidth
> > (), image.getHeight(), matrix, true)
> > , 0, 0, null);
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