iphone - UIImageView as button

Question

I'm trying to make a UIImageView accept actions and fire them everytime it clicked on the UIImageVie, but i'm having hard time in getting it to work, please help me out

but here is what i'm doing:

[View setUserInteractionEnabled:YES];

[View addTarget:self action:@selector(myAction:) forControlEvents:UIControlEventTouchUpInside];


- (void) myAction:(id)sender
{
    NSLog(@"It works!");
}

Answer 1

Objective-C

In your viewDidLoad: method write this:

-(void)viewDidLoad {

    UIImageView *imageview = [[UIImageView alloc]initWithFrame:CGRectMake(100.0, 100.0, 100.0, 100.0)];
    [imageview setImage:[UIImage imageNamed:@"image.png"]];
    [imageview setUserInteractionEnabled:YES];

    UITapGestureRecognizer *singleTap =  [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleTapping:)];
    [singleTap setNumberOfTapsRequired:1];
    [imageview addGestureRecognizer:singleTap];

    [self.view addSubview:imageview];
}

Then call your gesture method like this:

-(void)singleTapping:(UIGestureRecognizer *)recognizer {
    NSLog(@"image clicked");
}

Swift

override func viewDidLoad() {
    super.viewDidLoad()

    let imageView: UIImageView = UIImageView(frame: CGRect(x: 100.0, y: 100.0, width: 100.0, height: 100.0))
    imageView.image = UIImage(named: "image.png")
    imageView.isUserInteractionEnabled = true

    let singleTap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(self.singleTapping(recognizer:)))
    singleTap.numberOfTapsRequired = 1
    imageView.addGestureRecognizer(singleTap)

    self.view.addSubview(imageView)
}

@objc func singleTapping(recognizer: UIGestureRecognizer) {
    print("image clicked")
}