I'm still pretty new to gesture recognition, and I've never needed it until now. So, I've found various examples on the net, and when I try to implement it, my app just crashes when I touch the screen. So anyway, this is what I did.

I added this to viewDidLoad

// Create and initialize a tap gesture
    UITapGestureRecognizer *tapRecognizer = [[UITapGestureRecognizer alloc]
                                             initWithTarget:self action:@selector(respondToTapGesture:)];
    
    // Specify that the gesture must be a single tap
    tapRecognizer.numberOfTapsRequired = 1;
    
    // Add the tap gesture recognizer to the view
    [self.view addGestureRecognizer:tapRecognizer];

Then I added this to the ViewController

- (void)respondToTapGesture:(UIGestureRecognizer *)gesture
{
    // Do whatever
}

What happens is I get a crash. More specifically, I get an EXC_BAD_ACCESS.

[attachment=23338:Screen Shot 2014-08-27 at 9.11.42 AM.png]

That's the stack trace, if that helps. I have absolutely no idea why this isn't working, when all of the examples appear to be working fine. Did I forget to add something to plist?

Shogun.

Ensure that your device is running iOS 3.2 or greater.


L. Spiro

My device is running iOS 7.1.2. Since our last topic we've engaged regarding iOS devices, I've gotten my hands on a more modern iPhone.

Shogun.