我需要一些tapGestures添加到文本，多数民众赞成在一个UILabel的某些部分。这似乎是能够做一个超级链接 - 所以我想它可能使functioncall为好，但我只是不知道如何做到这一点。
继承人我的代码：
let regularFont = UIFont(name: Constants.robotoRegular, size: 13)!
let att1 = [NSFontAttributeName: regularFont]
let turqoiseFont = UIFont(name: Constants.robotoBold, size: 13)!
let att2 = [NSFontAttributeName: turqoiseFont]
let attString1 = NSMutableAttributedString(string: "By creating a profile, I accept ", attributes: att1)
attString1.addAttribute(NSForegroundColorAttributeName, value: UIColor.darkGrayColor(), range: NSMakeRange(0, attString1.length))
let attString2 = NSMutableAttributedString(string: "Terms and Conditions ", attributes: att2)
attString2.addAttribute(NSForegroundColorAttributeName, value: Colors.loginButtonColor, range: NSMakeRange(0, attString2.length))
let attString3 = NSMutableAttributedString(string: "and ", attributes: att1)
attString3.addAttribute(NSForegroundColorAttributeName, value: UIColor.darkGrayColor(), range: NSMakeRange(0, attString3.length))
let attString4 = NSMutableAttributedString(string: "Private Policy.", attributes: att2)
attString4.addAttribute(NSForegroundColorAttributeName, value: Colors.loginButtonColor, range: NSMakeRange(0, attString4.length))
let index = "\(attString1.string.endIndex)"
attString1.insertAttributedString(attString4, atIndex: Int(index)!)
attString1.insertAttributedString(attString3, atIndex: Int(index)!)
attString1.insertAttributedString(attString2, atIndex: Int(index)!)
termsAndConditionLabel.attributedText = attString1
我想绿松石部分能够利用用户或者条款和条件，或私人政策。任何人都可以请帮我解决这个问题？ :)）
我曾经做同样的事情，但用来代替的UILabel TextView的，你应该创建自己的属性，并将它们添加到属性串，然后处理自来水，这里的一些代码
我修改代码
let regularFont = UIFont(name: "HelveticaNeue", size: 13)!
let att1 = [NSFontAttributeName: regularFont]
let turqoiseFont = UIFont(name: "HelveticaNeue", size: 13)!
let att2 = [NSFontAttributeName: turqoiseFont]
let mattString : NSMutableAttributedString = NSMutableAttributedString()
let attString1 = NSMutableAttributedString(string: "By creating a profile, I accept ", attributes: att1)
attString1.addAttribute(NSForegroundColorAttributeName, value: UIColor.darkGray, range: NSMakeRange(0, attString1.length))
let attString2 = NSMutableAttributedString(string: "Terms and Conditions ", attributes: att2)
attString2.addAttribute(NSForegroundColorAttributeName, value: UIColor.red, range: NSMakeRange(0, attString2.length))
let attString3 = NSMutableAttributedString(string: "and ", attributes: att1)
attString3.addAttribute(NSForegroundColorAttributeName, value: UIColor.darkGray, range: NSMakeRange(0, attString3.length))
let attString4 = NSMutableAttributedString(string: "Private Policy.", attributes: att2)
attString4.addAttribute(NSForegroundColorAttributeName, value: UIColor.red, range: NSMakeRange(0, attString4.length))
mattString.append(attString1)
mattString.append(attString2)
mattString.append(attString3)
mattString.append(attString4)
let attributes = ["link" : "termsLink"]
let attributes2 = ["link" : "policyLink"]
let str : NSString = mattString.string as NSString
mattString.addAttributes(attributes, range: str.range(of: "Terms and Conditions"))
mattString.addAttributes(attributes2, range: str.range(of: "Private Policy"))
_textView.attributedText = mattString
_textView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(self.singleTap(tap:))))
和FUNC处理自来水
func singleTap(tap : UITapGestureRecognizer) {
let layoutManager = _textView.layoutManager
let location = tap.location(in: _textView)
let index = layoutManager.characterIndex(for: location, in: _textView.textContainer, fractionOfDistanceBetweenInsertionPoints: nil)
if index > _textView.textStorage.length {return}
var range : NSRange = NSRange()
if let type = _textView.attributedText.attribute("link", at: index, effectiveRange: &range) as? String {
if type == "termsLink" {
//.. do smth
} else {
//.. do smth
}
}
}
更新：
这里是我写的使用标签类
https://github.com/barbados88/TapableLabel/blob/master/TapableLabel.swift
我已经改变了他的Alexandr Kolesnik答案UILabel与斯威夫特4.如果有人想太多与UILabel使用
let regularFontAttribute = [NSAttributedStringKey.font: UIFont(name: "Lato-Regular", size: 15.0)!]
let boldFontAttribute = [NSAttributedStringKey.font: UIFont(name: "Lato-Bold", size: 15.0)!]
let mattString : NSMutableAttributedString = NSMutableAttributedString()
let attString1 = NSMutableAttributedString(string: "By creating a profile, I accept ", attributes: regularFontAttribute)
let anotherAttribute1 = [NSAttributedStringKey.foregroundColor: UIColor.black]
attString1.addAttributes(anotherAttribute1, range: NSMakeRange(0, attString1.length))
let attString2 = NSMutableAttributedString(string: "Terms and Conditions ", attributes: boldFontAttribute)
let anotherAttribute2 = [NSAttributedStringKey.foregroundColor: UIColor.red]
attString2.addAttributes(anotherAttribute2, range: NSMakeRange(0, attString2.length))
let attString3 = NSMutableAttributedString(string: "and ", attributes: regularFontAttribute)
let anotherAttribute3 = [NSAttributedStringKey.foregroundColor: UIColor.black]
attString3.addAttributes(anotherAttribute3, range: NSMakeRange(0, attString3.length))
let attString4 = NSMutableAttributedString(string: "Private Policy.", attributes: boldFontAttribute)
let anotherAttribute4 = [NSAttributedStringKey.foregroundColor: UIColor.red]
attString4.addAttributes(anotherAttribute4, range: NSMakeRange(0, attString4.length))
mattString.append(attString1)
mattString.append(attString2)
mattString.append(attString3)
mattString.append(attString4)
let attributes: [NSAttributedStringKey : Any] = [NSAttributedStringKey(rawValue: "link") : "termsLink"]
let attributes2: [NSAttributedStringKey : Any] = [NSAttributedStringKey(rawValue: "link") : "policyLink"]
let str : NSString = mattString.string as NSString
mattString.addAttributes(attributes, range: str.range(of: "Terms and Conditions"))
mattString.addAttributes(attributes2, range: str.range(of: "Private Policy"))
self.attributedLabel.attributedText = mattString
self.attributedLabel.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(self.singleTap(_:))))
self.attributedLabel.isUserInteractionEnabled = true
和FUNC处理自来水和检测文本挖掘
@objc func singleTap(_ tap : UITapGestureRecognizer) {
let attributedText = NSMutableAttributedString(attributedString: self.attributedLabel!.attributedText!)
attributedText.addAttributes([NSAttributedStringKey.font: self.attributedLabel!.font], range: NSMakeRange(0, (self.attributedLabel!.attributedText?.string.count)!))
// Create instances of NSLayoutManager, NSTextContainer and NSTextStorage
let layoutManager = NSLayoutManager()
let textContainer = NSTextContainer(size: CGSize(width: (self.attributedLabel?.frame.width)!, height: (self.attributedLabel?.frame.height)!+100))
let textStorage = NSTextStorage(attributedString: attributedText)
// Configure layoutManager and textStorage
layoutManager.addTextContainer(textContainer)
textStorage.addLayoutManager(layoutManager)
// Configure textContainer
textContainer.lineFragmentPadding = 0.0
textContainer.lineBreakMode = self.attributedLabel!.lineBreakMode
textContainer.maximumNumberOfLines = self.attributedLabel!.numberOfLines
let labelSize = self.attributedLabel!.bounds.size
textContainer.size = labelSize
let tapLocation = tap.location(in: self.attributedLabel)
// get the index of character where user tapped
let index = layoutManager.characterIndex(for: tapLocation, in: textContainer, fractionOfDistanceBetweenInsertionPoints: nil)
if index > (self.attributedLabel.text?.count)! { return }
var range : NSRange = NSRange()
if let type = self.attributedLabel.attributedText?.attribute(NSAttributedStringKey(rawValue: "link"), at: index, effectiveRange: &range) as? String {
// to get full text which was clicked
print((self.attributedLabel.text! as NSString).substring(with: range))
if type == "termsLink" {
//.. do smth
print("termsLink click")
} else { //policyLink
//.. do smth
print("policyLink click")
}
}
}
你需要做一个正常的超链接与自定义方案，例如myapp://function
和执行应用程序委托此方法：
optional func application(_ app: UIApplication,
open url: URL,
options: [UIApplicationOpenURLOptionsKey : Any] = [:]) -> Bool {
guard let scheme = url.scheme, scheme == "myapp" else { return }
if url.absoluteString.contains("function") {
//run code
}
}