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");
}
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");
}
}