Swift 标签的一部分可同时单击并加粗

让foundRange=self.mutableString.range（of:textToFind）

需要字符串，但我已将其声明为NSMutableAttributedString，以便能够为标签的特定部分添加权重

---

我想不出来。谁能帮我修理一下吗？我会非常感激的

NSMutableAttributedString

有一个名为

string

的属性。要访问它并允许搜索，请使用

yourMutableAttributedString.string

作为参数

import Foundation
import UIKit


extension NSMutableAttributedString {

    @discardableResult
    public func setAsLink(textToFind: NSMutableAttributedString, linkURL: String) -> Bool {

        let foundRange = self.mutableString.range(of: textToFind)
        if foundRange.location != NSNotFound {
            self.addAttribute(NSLinkAttributeName, value: linkURL, range: foundRange)
            return true
        }
        return false
    }
}



@IBDesignable
class SignUpLabel: UILabel {

    override func layoutSubviews() {
        super.layoutSubviews()

        let normalText = "Don't have an account yet? "
        let normalString = NSMutableAttributedString(string: normalText)

        let boldText  = "Sign up now!"
        let attrs = [NSFontAttributeName : UIFont.boldSystemFont(ofSize: 14)]
        let attributedString = NSMutableAttributedString(string: boldText, attributes: attrs)

        normalString.append(attributedString)

        self.attributedText = normalString

        normalString.setAsLink(textToFind: attributedString, linkURL: "http://www.someaddress.com")

    }

}