How to send 'sender' to another method in objective C

Question

I want to make a simple Circle and Cross game.

I put 9 buttons but connected it to one method so when the user click any of them the title of the button change to X or O. All the buttons have different tags. Now I want to send the 'sender' to another method just to check if the user is Circle or Cross

    -(void) show: (enum gamer) aGamer andSender: (id) sender
{
    switch(aGamer)
    {
        case gCircle:
            [sender setTitle:[NSString stringWithFormat:@"%c",'o']];
            break;
        case gCross:
            [sender setTitle:[NSString stringWithFormat:@"%c",'x']];

            break;
    }
}

The problem is that the button does not change the title. Here is how I call the method show when I click the button.

[self show:aGamer andSender:sender];

Answer 1

You should be using setTitle:forState: instead. E.g.

[sender setTitle:@"o" forState:UIControlStateNormal]

Here is the link to the doc for UIButton: Link