How to detect touches in a view which is moving override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? { let pf = layer.presentation()!.frame // note, that is in the space of our superview let p = self.convert(point, to: superview!) if pf.contains(p) { return self } return nil } It’s that easy Related tip … Read more
I’m not sure if you are still looking for an answer for this, but I was just looking at this myself today; and I managed to get it to work for me. The key to it, is using a UILongPressGestureRecognizer instead of just a UITapGestureRecognizer, we can then set the minimumPressDuration of the recognizer to … Read more
The UIGestureRecognizer is a red herring I think. In the end to solve this I overrode the pointInside:withEvent: method of my UIView: – (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event { BOOL pointInside = NO; if (CGRectContainsPoint(imageView.frame, point) || expanded) pointInside = YES; return pointInside; } This causes the view to trap all touches if you touch either the … Read more
This method does not require subclassing anything. You just add a UILongPressGestureRecognizer to the view and set the minimumPressDuration to zero. Then you check the state when the gesture events are called to see if the touch event is beginning or ending. Here is the entire project code for the example image above. import UIKit … Read more
You should adopt the UIGestureRecognizerDelegate protocol inside the self object and call the below method for checking the view. Inside this method, check your view against touch.view and return the appropriate bool (Yes/No). Something like this: – (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch { if ([touch.view isDescendantOfView:yourSubView]) { return NO; } return YES; } Edit: Please, also … Read more
This is a step by step guide on how to implement gesture recognizers in your class: Conform your class to UIGestureRecognizerDelegate protocol. Instantiate the gesture recognizer. For example, to instantiate a UITapGestureRecognizer, we will do: UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapFrom:)]; Here, action is the selector which will handle the gesture. Here, our selector … Read more
This should solve your problem. Detect touch event on UIScrollView AND on UIView’s components [which is placed inside UIScrollView] The idea is to tell the gesture recognizer to not swallow up the touch events. To do this you need to set singleTap’s cancelsTouchesInView property to NO, which is YES by default. UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer … Read more
Have you tried to set isUserInteractionEnabled to true on the tripDetails label? This should work.
UITapGestureRecognizer *singleTap = [[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(doSingleTap)] autorelease]; singleTap.numberOfTapsRequired = 1; [self.view addGestureRecognizer:singleTap]; UITapGestureRecognizer *doubleTap = [[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(doDoubleTap)] autorelease]; doubleTap.numberOfTapsRequired = 2; [self.view addGestureRecognizer:doubleTap]; [singleTap requireGestureRecognizerToFail:doubleTap]; Note: If you are using numberOfTouchesRequired it has to be .numberOfTouchesRequired = 1; For Swift let singleTapGesture = UITapGestureRecognizer(target: self, action: #selector(didPressPartButton)) singleTapGesture.numberOfTapsRequired = 1 view.addGestureRecognizer(singleTapGesture) let … Read more
You need to implement UITapGestureRecognizer – docs here – in your viewController – (void)viewDidLoad { [super viewDidLoad]; // what object is going to handle the gesture when it gets recognised ? // the argument for tap is the gesture that caused this message to be sent UITapGestureRecognizer *tapOnce = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapOnce:)]; UITapGestureRecognizer *tapTwice … Read more