Question

How can I add a UIGestureRecognizer to recognise left or right swipes on top of a UIImageView? I just need an action to be called when the swipe is left and another action for when the swipe is right.

Answer 1

Create 2 swipe gestures and add them to your image view.

UISwipeGestureRecognizer * recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(myRightAction)];
    [recognizer setDirection:(UISwipeGestureRecognizerDirectionRight)];
    [myImageView addGestureRecognizer:recognizer];
    [recognizer release];

UISwipeGestureRecognizer * recognizer2 = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(myLeftAction)];
    [recognizer2 setDirection:(UISwipeGestureRecognizerDirectionLeft)];
    [myImageView addGestureRecognizer:recognizer2];
    [recognizer2 release];