Created
October 25, 2018 08:03
-
-
Save iceboxi/cd94e3b038d0edbcec70e8e6779aff9f to your computer and use it in GitHub Desktop.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| @objc func tapLabel(gesture: UITapGestureRecognizer) { | |
| let text = (gesture.view as? UILabel)?.text ?? "" | |
| let termsRange = (text as NSString).range(of: "terms") | |
| let privacyRange = (text as NSString).range(of: "privacy") | |
| if gesture.didTapAttributedTextInLabel(label: guildLabel, inRange: termsRange) { | |
| print("Tapped terms") | |
| } else if gesture.didTapAttributedTextInLabel(label: guildLabel, inRange: privacyRange) { | |
| print("Tapped privacy") | |
| } else { | |
| print("Tapped none") | |
| } | |
| } | |
| extension UITapGestureRecognizer { | |
| func didTapAttributedTextInLabel(label: UILabel, inRange targetRange: NSRange) -> Bool { | |
| // Create instances of NSLayoutManager, NSTextContainer and NSTextStorage | |
| let layoutManager = NSLayoutManager() | |
| let textContainer = NSTextContainer(size: CGSize.zero) | |
| let textStorage = NSTextStorage(attributedString: label.attributedText!) | |
| // Configure layoutManager and textStorage | |
| layoutManager.addTextContainer(textContainer) | |
| textStorage.addLayoutManager(layoutManager) | |
| // Configure textContainer | |
| textContainer.lineFragmentPadding = 0.0 | |
| textContainer.lineBreakMode = label.lineBreakMode | |
| textContainer.maximumNumberOfLines = label.numberOfLines | |
| let labelSize = label.bounds.size | |
| textContainer.size = labelSize | |
| // Find the tapped character location and compare it to the specified range | |
| let locationOfTouchInLabel = self.location(in: label) | |
| let textBoundingBox = layoutManager.usedRect(for: textContainer) | |
| let textContainerOffset = CGPoint( | |
| x: (labelSize.width - textBoundingBox.size.width) * 0.5 - textBoundingBox.origin.x, | |
| y: (labelSize.height - textBoundingBox.size.height) * 0.5 - textBoundingBox.origin.y | |
| ) | |
| let locationOfTouchInTextContainer = CGPoint( | |
| x: locationOfTouchInLabel.x - textContainerOffset.x, | |
| y: locationOfTouchInLabel.y - textContainerOffset.y | |
| ) | |
| let indexOfCharacter = layoutManager.characterIndex(for: locationOfTouchInTextContainer, in: textContainer, fractionOfDistanceBetweenInsertionPoints: nil) | |
| return NSLocationInRange(indexOfCharacter, targetRange) | |
| } | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment