How to make a static image appear after 3 seconds?

Question

How would I make an image appear after 3 seconds?

Answer 1

I'm a big fan of using GCD (iOS 4+) because you can simplify your code with inline blocks.

In your case, you should set the image to hidden in Interface Builder, then create an IBOutlet with a connection to an ivar in your class.

Then you can simply run this in viewDidLoad or similar:

dispatch_time_t delay = dispatch_time(DISPATCH_TIME_NOW, NSEC_PER_SEC * 3.0); 
dispatch_after(delay, dispatch_get_main_queue(), ^(void){
    yourImage.hidden = NO;
});