Android :: Rotating Animation / Applied To Full Window

I have a pretty simple view hierarchy, including an ImageView in a FrameLayout with a source drawable that is bigger than the window size.Using scaleType=center the image is cropped and centered, as expected, when laid out.In response to user interaction we need to rotate the ImageView.I am using a rotate animation XML definition and View.startAnimation.This works with one remaining problem: the cropped part of the image remains cropped when rotated,so when the image is rotated by 90 degrees in portrait orientation the image is clearly cropped on the top and bottom. Essentially it looks like a rectangle the size of the view window is being rotated,rather than the oversize image in its entirety (note it is intentionally oversize in the hope of avoiding this cropping problem).We want the image to fill the screen regardless of the angle of rotation.What am I missing?