How to change background image on a button , iOS?

Question

I created a button on my view controller which has a predefined background image. I created an action and an outlet for this button. I want when the user taps the button to change the background image of this button. How can i do that? I tried to put into the action method of the button something like this:

snapshotCheckbox.image = [UIImage imageNamed:@"snapshot.png"];

but i guess this method is for UImageViews. How can i do the same thing for a button? Thank you very much for reading my post :D

Answer 1

you can set the image for a given state of the button in the viewDidLoad:

[myButton setBackgroundImage:[UIImage imageNamed:@"myBackgroundImage.png"] forState:UIControlStateHighlighted];

Answer 2

A button has two properties image and backgroundImage..

For setting image use

button.currentImage = image (or) 
[button setImage:image   ForState:UIControlStateNormal];

For setting backgroundImage use

button.currentBackgroundImage = image (or) 
[button setBackgroundImage:image  ForState:UIControlStateNormal];

Answer 3

First set the tybe of the button to

button = [UIButton buttonWithType :UIButtonTypeCustom];

then use

 [button setImage:[UIImage imageNamed:@"imagename.type"]   ForState:UIControlStateNormal];