iWillApps

To detect whether a touch has been performed on the screen, you just have to add a function to your view controller, this is helpful when you just want someone to touch the screen rather than a button:

-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
	NSLog(@"The View Has Been Touched");
}

Even better, it will only call the touchesBegan function once the the view we put the touchesBegan function in gets touched. I usually use the touchesBegan in place of buttons in an app that has an activation function (ie. Touch the screen to activate.).