Adding a UITapGestureRecognizer to a view then removing seems to short circuit button events
- by heymon
In the code below I am popping up a ImageView as the result of a users touchUpInside on a simple info button. There are other buttons on the view.
To dismiss the info I added a UITapGestureRecognizer to my controllers view, and hide the view when the tap is detected.
If I don't remove the tapGestureRecognizer, the action is called every time some.
Even when I do remove the gesture action, no bottons receive touchUpInside events once this gesture recognizer is added. Why?
Code from my MainViewController
(void) dismissInfo: (UITapGestureRecognizer *)gesture {
[kInfoView setHidden: YES];
[gesture removeTarget: self action: NULL];
}
(IBAction) displayInfo {
CGRect startFrame = CGRectMake(725, 25, 0, 0), origFrame;
CGFloat yCenter = [kInfoView frame].size.height/2 + 200;
CGPoint startCenter = CGPointMake(724, 25), displayCenter = CGPointMake(384, yCenter);
UITapGestureRecognizer *g = [[UITapGestureRecognizer alloc] initWithTarget: self
action: @selector(dismissInfo:)];
[self.view addGestureRecognizer: g];
origFrame = [kInfoView frame];
[kInfoView setCenter: startCenter];
[kInfoView setHidden: NO];
[kInfoView setFrame: startFrame];
[UIView beginAnimations: @"info" context: nil];
[UIView setAnimationDuration: .5];
[UIView setAnimationDelegate: self];
[kInfoView setFrame: origFrame];
[kInfoView setCenter: displayCenter];
[UIView commitAnimations];
}
