iPhone: How to find out which object was touched

Question

On my UIViewController I have different UIViews, and some of them are my custom UIViews. How to know which UIView was touched, my custom or not ??

You might find your answer here: http://stackoverflow.com/questions/2793242/detect-if-certain-uiview-was-touched-amongst-other-uiviews — Oritm, Mar 07 '12 at 12:40

score 2 · Accepted Answer · edited Jul 31 '12 at 13:25

You can set tag to each of your view.

view1.tag = y;
UITapGestureRecognizer *tapGesture = 
    [[UITapGestureRecognizer alloc] initWithTarget:self 
                                            action:@selector(singleTapGestureCaptured:)];
tapGesture.numberOfTapsRequired = 1;
[view1 addGestureRecognizer:tapGesture];

and in singleTapGestureCaptured method:

- (void)singleTapGestureCaptured:(UITapGestureRecognizer *)gesture
{ 
    [[gesture view] tag];
    NSLog(@"tap captured for view :%d", [[gesture view] tag]);
}

score 1 · Answer 2 · answered Mar 07 '12 at 12:42

You can create two UIGestureRecognizers then you have to associate the gesture recognizer with your views like this:

UITapGestureRecognizer * recognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTap:)];
[view addGestureRecognizer:recognizer];

UITapGestureRecognizer * recognizerCustom = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapCustom:)];
[customView addGestureRecognizer:recognizer];

This way you know when the handleTap: method is called your normal view was touched and when your handleTapCustom: gets called your custom view was called.

iPhone: How to find out which object was touched

2 Answers2