Question

How can I rotate an image around it’s center point? This rotates it but also moves it:

 Matrix mat = new Matrix();
 mat.postRotate(45);
 Bitmap bMapRotate = Bitmap.createBitmap(dialBM, 0, 0, dialBM.getWidth(),dialBM.getHeight(), mat, true);
dial.setImageBitmap(bMapRotate);

I’ve checked other examples on this site, but they either fail to work or use canvas, I do not wish to use canvas.

Answer 1

The second and third arguments to postRotate is the x and y pivot point.

 mat.postRotate(45, dialBM.getWidth()/2, dialBM.getHeight()/2);