Question

In my app I need have a swipe gesture recogniser on my background scroller for the up direction. Here is my code below

It is in viewDidLoad

UISwipeGestureRecognizer *Swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(SwipeRecognizer:)];
Swipe.direction = UISwipeGestureRecognizerDirectionUp;
[backgroundScroller addGestureRecognizer:Swipe];

and it is the SwipeRecognizer:

- (void) SwipeRecognizer:(UISwipeGestureRecognizer *)sender {
    if (sender.direction | UISwipeGestureRecognizerDirectionUp){
        NSLog(@" *** SWIPE UP ***");
    }
}

The problem is I cant enable scrolling and capture the gesture simultaneously. when I said scrolling is not enabled, I can recognise the gesture. But I need to to scrolling and gesture recognition simultaneously. isn’t it possible?

Answer 1

Override the gestureRecognizer:shouldRecognizeSimultaneouslyWithGestureRecognizer: method to don’t block the UIScrollViews Pan recognizer

And it will work…

Dont forget to add delegate to self for gesture recogniser. As mentioned in @death7eater’s comment.