android 9-patch graphic doesn't scale in image view

Question

I have

Answer 1

Also check to make sure your scale lines on the sides don't extend all the way to the corners of the image. I knew it didn't really make sense for there to be black pixels there, but I figured Android would ignore them, but it actually prevents the scaling from working. It also gives you the "ERROR: 9-patch image xxx.9.png malformed" message in the output window, but you might not have noticed this. As soon as I took out the pixels in the corners, it started working for me.