Set a button background image iPhone programmatically

Question

In Xcode, how do you set the background of a UIButton as an image? Or, how can you set a background gradient in the UIButton?

Answer 1

This will work

UIImage *buttonImage = [UIImage imageNamed:@"imageName.png"];
[btn setImage:buttonImage forState:UIControlStateNormal];
[self.view addSubview:btn];