Passing 2 parameters into UIButton's action function

Question

I have a UIButton,

-(void)backBtn:(NSString *)parentId lbltext:(NSString *)label

function will be fired when push the button,

[button addTarget:self 
           action:@selector(backBtn:lbltext:) 
       withObject:par 
       withObject:title.text 
 forControlEvents:UIControlEventTouchDown];

I looked this question. But my fired function will change my button name, depends some functions with the parameters. So I can't create another class.

How can I make this code true?Thanks.

score 3 · Accepted Answer · answered Aug 15 '13 at 08:16

3

I would use a delegate for this instead. Trigger the event in your own class and then send it using a delegate. Also, UIControlEventTouchUpInside is better, UIControlEventTouchDown will be triggered even if the user regrets its action (by moving the finger outside the button).

- (void) touchEvent:(id)sender {
    if ([self.delegate respondToSelector@selector(par:text)]) {
        [self.delegate par:something text:@"MyText"];
    }
}

answered Aug 15 '13 at 08:16

Konrad77

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Thanks for replying. I created the UIButton with code. So am I gonna put the touchEvent into the action:@selector? – e.ozmen Aug 15 '13 at 08:26

Passing 2 parameters into UIButton's action function

1 Answers1