Home/ Questions/Q 8108639
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-06T01:10:36+00:00

I’m using two different TapGestureRecognizer to handle both single and double tap on screen.

  • 0

I’m using two different TapGestureRecognizer to handle both single and double tap on screen.
This is the code:

UITapGestureRecognizer *tapGR =[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(handleTap:)];
    [tapGR setDelegate:self];
    [tapGR setNumberOfTapsRequired:1];
    [self addGestureRecognizer:tapGR];


    UITapGestureRecognizer *doubleTapGR = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(handleDoubleTap:)];
    [doubleTapGR setNumberOfTouchesRequired:2];
    [self addGestureRecognizer:doubleTapGR];

    [tapGR requireGestureRecognizerToFail : doubleTapGR];

    [tapGR release];
    [doubleTapGR release];

Even if I specified that [tapGR requireGestureRecognizerToFail: doubleTapGR] the “handleTap” selector is performed. Where is the mistake?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    You made a mistake! You used setNumberOfTouchesRequired method for doubleTapGR instead of using setNumberOfTapsRequired. Here is the corrected code:

    UITapGestureRecognizer *tapGR =[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(handleTap:)];
[tapGR setDelegate:self];
[tapGR setNumberOfTapsRequired:1];
[self addGestureRecognizer:tapGR];


UITapGestureRecognizer *doubleTapGR = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(handleDoubleTap:)];
[doubleTapGR setNumberOfTapsRequired:2];
[self addGestureRecognizer:doubleTapGR];

[tapGR requireGestureRecognizerToFail : doubleTapGR];

[tapGR release];
[doubleTapGR release];

    Best regards 😉

    • 0