Gesture recognizer (swipe) on UIImageView

Question

I am trying to NSLog when I swipe over an UIImageView with this code, but it does not work for some reason. Any idea ?

@implementation ViewController  - (void)viewDidLoad {     [super viewDidLoad];      UIImage *image = [UIImage imageNamed:@"image2.png"];     UIImageView *imageView = [[UIImageView alloc] initWithImage:image];      imageView.frame = [[UIScreen mainScreen] bounds];      [self.view addSubview:imageView];      UISwipeGestureRecognizer *recognizer = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(rightSwipeHandle:)];     [recognizer setNumberOfTouchesRequired:1];     [imageView addGestureRecognizer:recognizer];  }  - (void)rightSwipeHandle:(UISwipeGestureRecognizer*)gestureRecognizer {     NSLog(@"right swipe"); } 

Answer 1

Enable UIImage view user interaction which is disabled by default.

[imageView setUserInteractionEnabled:YES]; 

Adding a Swipe Gesture Events

UISwipeGestureRecognizer *swipeLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:)]; UISwipeGestureRecognizer *swipeRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:)];  // Setting the swipe direction. [swipeLeft setDirection:UISwipeGestureRecognizerDirectionLeft]; [swipeRight setDirection:UISwipeGestureRecognizerDirectionRight];  // Adding the swipe gesture on image view [imageView addGestureRecognizer:swipeLeft]; [imageView addGestureRecognizer:swipeRight]; 

Handling Swipe Gesture Events

- (void)handleSwipe:(UISwipeGestureRecognizer *)swipe {      if (swipe.direction == UISwipeGestureRecognizerDirectionLeft) {         NSLog(@"Left Swipe");     }      if (swipe.direction == UISwipeGestureRecognizerDirectionRight) {         NSLog(@"Right Swipe");        }   }