How to make custom buttons in iOS?

Question

The default iOS UI is nice but if I wanted to use images for buttons instead how would I do that - is it OpenGL?

Answer 1

You can use images for buttons using a few simple lines of code:

// code to set image for button at normal state
[myButton setImage:[UIImage imageNamed:@"buttonImage.png"] 
          forState: UIControlStateNormal];

You can also use Xcode to change the type to "Custom" then you can set images for each button "state."

You can read more about UIButton states here