Adding UITapGestureRecognizer to UIImageView

By default, UIImageView doesn't respond to any touch, such as UITabGestureRecognizer. However, you can enable it by either attributes inspector or code.

- Attributes Inspector
check the box "User Interaction Enabled" in the Interaction section

- Code
self.imageView.userInteractionEnabled = true



Then, add a UITabGestureRecognizer to UIImageView.

var tapGesture = UITapGestureRecognizer(target: self, action: "tapped:")
self.imageView.addGestureRecognizer(tapGesture)

func tapped(recognizer: UITapGestureRecognizer) {
    println("tapped")
}

Okay, finished. Run and test it :)





UIImageView預設是不會對任何觸碰有反應, 例如UITabGestureRecognizer. 但可以透過attributes inspector或code去啟動.
- Attributes Inspector
在Interaction部份, 鈎選"User Interaction Enabled".

- Code
self.imageView.userInteractionEnabled = true



之後, 把UITabGestureRecognizer加到UIImageView中.

var tapGesture = UITapGestureRecognizer(target: self, action: "tapped:")
self.imageView.addGestureRecognizer(tapGesture)

func tapped(recognizer: UITapGestureRecognizer) {
    println("tapped")
}

完成了 :)