Setting selectors for global UIButton - ios

Question

I want to return a global UIButton from a global class.
+(UIBarButtonItem *) globalButton {
UIButton *myButton = [UIButton buttonWithType:UIButtonTypeCustom];
myButton.frame = CGRectMake(0.0, 0.0, 40, 40);
[myButton addTarget:self action:#selector(???)
forControlEvents:UIControlEventTouchUpInside];
return myButton;
}
So if I call [Global globalButton] from my viewController, I can get this button. The problem I'm having is how to set the selector, if I'm calling if from my view controller?

Answer 1

You should change your code as follow, assuming you would be calling it from UIViewController
+(UIButton *) globalButton:(UIViewController*)delegate {
UIButton *myButton = [UIButton buttonWithType:UIButtonTypeCustom];
myButton.frame = CGRectMake(0.0, 0.0, 40, 40);
if([delegate respondsToSelector:#selector(gloBalButtonTapped:)])
[myButton addTarget:delegate action:#selector(gloBalButtonTapped:) forControlEvents:UIControlEventTouchUpInside];
return myButton;
}
//Below method should be present in your view controller than only it will be added to myButton click event.
-(IBAction)gloBalButtonTapped:(id)sender{
}
You should return UIButton only if you are creating UIButton, if you need to return UIBarButtonItem than you should create UIBarButtonItem or Xcode will give warning, just a suggestion though.

Answer 2

Just dont add target in Global Class wherever you want to use it just use it like this.
UIBarButtonItem *btn = [Global globalButton];
btn addTarget:self action:#selector(yourSelector)
forControlEvents:UIControlEventTouchUpInside];
Or you can make globalButton a property in GlobalClass and write this method in setGlobalButton and then you can use it as a property in any viewController.
Or if you want to control it in Global only then you can mention your selector mentioned in this class only. And in that method you can control the behaviour.

Answer 3

Try this in your controller:
UIBarButtonItem* button = [UIBarButtonItem globalButton];
[button addTarget:self action:#selector(yourDidTapAction:) forControlEvents:UIControlEventTouchUpInside];
or this in globalButton:
+(UIBarButtonItem*)globalButtonWithTarget:(id)target andAction:(SEL)action
{
// ...
[myButton addTarget:target action:action
forControlEvents:UIControlEventTouchUpInside];
// ...
}

Answer 4

I found the easiest way to do this is below:
+(UIBarButtonItem *) buttonWithSelector:(SEL)selector andSender:(id)sender {
UIButton *myButton = [UIButton buttonWithType:UIButtonTypeCustom];
myButton.frame = CGRectMake(-40.0, 10.0, 40, 40);
[myButton addTarget:sender action:selector forControlEvents:UIControlEventTouchUpInside];
return myButton;
}