Programmatically added button wont work

Question

So this is what i have. I have created a button and set it to an action but every time i click the button it crashes the program. Why wont my button work? Thanks in advance.

UIButton *currentGamesButton = [UIButton buttonWithType:UIButtonTypeCustom];
currentGamesButton.frame = CGRectMake(124,18,72,65);
[currentGamesButton addTarget:self
                       action:@selector(goToCurrentGamesViewController:)
             forControlEvents:UIControlEventTouchDown];
UIImage *currentGamesPNG = [UIImage imageNamed:@"CurrentGamesHighlightedState.png"];
[currentGamesButton setBackgroundImage:currentGamesPNG forState:UIControlStateNormal];
[self.view addSubview:currentGamesButton];

I suspect that it does not find the selector goToCurrentGamesViewController: Can you show the code for this method, including its declaration? — J_D, Apr 18 '12 at 19:01

score 4 · Accepted Answer · answered Apr 18 '12 at 19:09

4

If the method for goToCurrentGamesViewController takes no parameters, change this line:

[currentGamesButton addTarget:self
                   action:@selector(goToCurrentGamesViewController:)

to:

[currentGamesButton addTarget:self
                   action:@selector(goToCurrentGamesViewController)

(remove the colon : from the method in the selector)

answered Apr 18 '12 at 19:09

Matisse VerDuyn

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thanks. that worked out. What kind of parameters can you add to an action? Just curious. – nfoggia Apr 18 '12 at 19:17
parameters passed to a methods in a selector can only include an id, which is when the `:` comes into play – Matisse VerDuyn Apr 18 '12 at 19:18

Programmatically added button wont work

1 Answers1