NSAttributedString click event in UILabel using swift

Question

Suppose I have an AttributedString : \"Already have an account? Sign in!\". I am placing this String in UILabel. Now when a user clicks on \"Sign in!\", current viewControl

Answer 1

You need to Use UITextView

class ViewController: UIViewController, UIGestureRecognizerDelegate {

@IBOutlet weak var textView: UITextView!

override func viewDidLoad() {
    super.viewDidLoad()
let attribute:NSAttributedString = NSAttributedString(string: "Already have an account? Sign in!", attributes: ["Tag" : true])
    textView.attributedText = attribute

    let tap = UITapGestureRecognizer(target: self, action: #selector(self.textTapped(_:)))
    tap.delegate = self
    textView.userInteractionEnabled = true
    textView.addGestureRecognizer(tap)

}

func textTapped(recognizer:UITapGestureRecognizer) {
    let textView:UITextView = recognizer.view as! UITextView

    // Location of the tap in text-container coordinates
    let layoutManager = textView.layoutManager
    var location:CGPoint = recognizer.locationInView(textView)

    location.x -= textView.textContainerInset.left
    location.y -= textView.textContainerInset.top

    var distance:CGFloat?
    // Find the character that's been tapped on
    let characterIndex = layoutManager.characterIndexForPoint(location, inTextContainer: textView.textContainer, fractionOfDistanceBetweenInsertionPoints: &distance!)
    if characterIndex < textView.textStorage.length{
        var range:NSRange?
        let value = textView.attributedText.attribute("Tag", atIndex: characterIndex, effectiveRange: &range!)
        if value {
           // add your code here
        }
    }
}
}