What does a UISegmentedControl return to its action on UIControlEventValueChanged?

Question

Hi there.

So, I have a UISegmentedControl with:

[control addTarget:self action:@selector(myAction) forControlEvents:UIControlEventValueChanged];

Just wondering how I would find out what segment has been selected (so I can do the appropriate action). I know its something like:

@selector(myAction:) but what gets sent? ie: when I define my method what do I have to define?

Thank you.

Answer 1

- (IBAction)myAction:(id)selector;

selector is an UISegmentedControl object. Thus you may differ two UISegmentedControl's if you bind one action to both.

Answer 2

get the selected item... second part of question

-(IBAction) myAction:(id)sender{
    NSLog(@"myAction",nil);

    UISegmentedControl * control = sender;
    int selectedIndex = [control selectedSegmentIndex];
}