使UILabel中句子中的每个单词都可点击

import UIKit

class ClickableLabel: UILabel {
    override var text: String? {
        didSet {
            updateClickableText()
        }
    }
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        setupClickableText()
    }
    
    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        setupClickableText()
    }
    
    private func setupClickableText() {
        isUserInteractionEnabled = true
        
        let tapGesture = UITapGestureRecognizer(target: self, action: #selector(labelTapped(_:)))
        addGestureRecognizer(tapGesture)
    }
    
    private func updateClickableText() {
        guard let text = text else { return }
        
        let attributedString = NSMutableAttributedString(string: text)
        let words = text.components(separatedBy: " ")
        
        for word in words {
            let range = (text as NSString).range(of: word)
            attributedString.addAttribute(.link, value: word, range: range)
        }
        
        attributedText = attributedString
    }
    
    @objc private func labelTapped(_ gesture: UITapGestureRecognizer) {
        guard let text = text else { return }
        
        let layoutManager = NSLayoutManager()
        let textContainer = NSTextContainer(size: bounds.size)
        let textStorage = NSTextStorage(attributedString: attributedText ?? NSAttributedString(string: text))
        
        layoutManager.addTextContainer(textContainer)
        textStorage.addLayoutManager(layoutManager)
        
        let location = gesture.location(in: self)
        let characterIndex = layoutManager.characterIndex(for: location, in: textContainer, fractionOfDistanceBetweenInsertionPoints: nil)
        
        if characterIndex < textStorage.length {
            let range = (text as NSString).range(of: textStorage.string)
            let attributes = textStorage.attributes(at: characterIndex, effectiveRange: &range)
            
            if let link = attributes[.link] as? String {
                // 处理点击事件，比如弹出提示框显示被点击的单词
                print("Clicked word: \(link)")
            }
        }
    }
}

let label = ClickableLabel(frame: CGRect(x: 0, y: 0, width: 200, height: 50))
label.text = "Hello World"
view.addSubview(label)