Detect a touch on a subview in a main controller

Question

I have a main view controller class which contains a UIScrollView and a number of subviews like cards.

Each card is an object and it is covered with a UIButton. I want to detect a tap on the UIButton and want to disallow taps on multiple cards at a time.

Just give a unique tag to each button and on the click you can get what button you clicked — Ahmed Z., May 14 '13 at 04:16

score 0 · Answer 1 · answered May 14 '13 at 04:24

I understand your question partially . See if following helpful :

In your scroll view :

 for (int i=0;i<array;i++)
 {
       UIButton *button=[[UIButton alloc]initWithFrame:CGRectMake(scrollWidth, 5,50,40)];
       button.userInteractionEnabled=YES;
       UITapGestureRecognizer *rcognizer=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(buttonSelcted:)];
       [button addGestureRecognizer:rcognizer];
       [scrollView addSubview:button];
       scrollWidth=scrollWidth+80;
  }

In buttonSelected method just do following :

-(void)buttonSelected:(UITapGestureRecognizer *)recognizer
{
    UIButton *selectedItem=(UIButton*)recognizer.view;
    //do what you want with button
}

score 0 · Answer 2 · answered May 14 '13 at 04:39

0

In all your buttons setExclusiveTouch on. As:

[button setExclusiveTouch:YES];

For further Details on it you can refer:

answered May 14 '13 at 04:39

rptwsthi

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Detect a touch on a subview in a main controller

2 Answers2