How to get button.tag via longPressGestureRecognizer?

Question

I'm dynamically adding image buttons to some scrollview. They all point at one longPressHandler. Now, how do I get which button was pressed? The [sender tag] gives me the tag of longGestureRecognizer that I added to button and I can't manually set that tag.

for (...) {
    UIButton *button = [[UIButton alloc] init];
    button.tag = w + h * 3; 
    [button addTarget:self action:@selector(imageButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
    UILongPressGestureRecognizer *gest = [[UILongPressGestureRecognizer alloc]
                initWithTarget:self action:@selector(imageButtonLongPress:)];
    gest.minimumPressDuration = 1;
    gest.delegate = self;

    [button addGestureRecognizer:gest];
    [gest release];

    [scrollView addSubview:button];
    [button release];
}

- (void) imageButtonLongPress:(id)sender {  
    // how to get button tag here?
}

Marko Hlebar · Accepted Answer · 2011-12-03T16:50:39.530

14

There is a view property in the UIGestureRecognizer which returns the view that recognizer is attached to. I think that is your best bet.

- (void) imageButtonLongPress:(id)sender {  
    UIGestureRecognizer *recognizer = (UIGestureRecognizer*) sender;
    int tag = recognizer.view.tag;
}

edited Dec 03 '11 at 16:50

answered Apr 18 '11 at 09:48

Marko Hlebar

1,973
17
18

`recognizer.view.tag` gives me wrong tag of UIButton clicked. Any solution? – rohan-patel Mar 20 '13 at 11:34

score 2 · Answer 2 · answered Apr 18 '11 at 09:53

In your action you have to type cast your sender in gesture and then type cast its view to a button then get button's tag as -

UILongPressGestureRecognizer *gest = (UILongPressGestureRecognizer *)sender;
UIButton *button = (UIButton*)[gest view];
NSLog(@"%d",[button tag]);

How to get button.tag via longPressGestureRecognizer?

2 Answers2

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