I want to rotate an image using ImageView.setImageMatrix(matrix) but it simply doesn’t have any effect.
I call matrix.postRotate(45, 20, 20); before passing it to the function above but no effect, the image is not rotated. Why?
matrix.postRotate(45, 20, 20);
ImageView.setImageMatrix(matrix)
I’m not really sure but I think you should set scale type:
You can also do that in XML with
android:scaleType="matrix".