Question

I am absolutely clueless on this front! Step-by-step explanation earns bonus points.

Answer 1

In iOS We have UIButtons (not NSButtons)

Here is how to create an UIButton programmatically:

UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; //3
[button setFrame:CGRectMake(320, 0, 100,100 )];
[button setTitle:@"PressMe!" forState:UIControlStateNormal]; 
[button addTarget:self action:@selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];//2
[aView addSubview:button]; //1

and :

- (void)buttonPressed:(UIButton *)sender{

    //do something here ;)
    [sender setTitle:@"PressMe!. Again" forState:UIControlStateNormal];


}

1: if you are in a UIViewController, then aView will be self.view
if you are somewhere else, just pass the view that will contain your button

2: the easiest case is like that but you can set any object as a target. That object must have to have the method you pass in the @selector(...). Otherwise you app will crash when pressing the button.