UIButton background color becomes white when running on iOS6

Question

I wonder why the buttons of my iPhone app is not displaying properly when running on an iOS 6 device. I have set the buttons' background color to a blue color in Interface builder. However, when running on iOS 6 the buttons background became white.

This is how the button look like when running on iOS7

And this is how the buttons look like when running on iOS6

Answer 1

Make your button Custom instead or System or RoundRect

Answer 2

Change the button type to custom button in Interface builder.