如何在UITextView中显示可点击的链接

我试图显示一个UITextview与可点击链接的属性string。 我创build了一个简单的testing项目，看看我哪里出错了，仍然不知道。 我已经尝试启用用户交互和设置shouldInteractWithURLs委托方法，但它仍然无法正常工作。 这是我的代码（只包含一个文本视图的视图控制器）

@IBOutlet weak var textView: UITextView! override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. let string = "Google" let linkString = NSMutableAttributedString(string: string) linkString.addAttribute(NSLinkAttributeName, value: NSURL(string: "https://www.google.com")!, range: NSMakeRange(0, string.characters.count)) linkString.addAttribute(NSFontAttributeName, value: UIFont(name: "HelveticaNeue", size: 25.0)!, range: NSMakeRange(0, string.characters.count)) textView.attributedText = linkString textView.delegate = self textView.selectable = true textView.userInteractionEnabled = true } 

以下是我实现的委托方法：

 func textViewShouldBeginEditing(textView: UITextView) -> Bool { return false } func textView(textView: UITextView, shouldInteractWithURL URL: NSURL, inRange characterRange: NSRange) -> Bool { return true } 

这仍然是行不通的。 我已经search了这个话题，没有任何帮助。 非常感谢。

Answer 1

只需select故事板中的UITextView ，然后转到“显示属性检查器”，然后selectselectable和links 。 如下图所示。 确保Editable被选中。

Answer 2

Swift 3 iOS 10：这里是可点击的扩展UITextView，自动检测网站内的网站，只要链接以www开头。 例如： http://www.exmaple.com，如果它存在于文本的任何地方都可以点击。 这是这个class级：

 import Foundation import UIKit public class ClickableTextView:UITextView{ var tap:UITapGestureRecognizer! override public init(frame: CGRect, textContainer: NSTextContainer?) { super.init(frame: frame, textContainer: textContainer) print("init") setup() } required public init?(coder aDecoder: NSCoder) { super.init(coder: aDecoder) setup() } func setup(){ // Add tap gesture recognizer to Text View tap = UITapGestureRecognizer(target: self, action: #selector(self.myMethodToHandleTap(sender:))) // tap.delegate = self self.addGestureRecognizer(tap) } func myMethodToHandleTap(sender: UITapGestureRecognizer){ let myTextView = sender.view as! UITextView let layoutManager = myTextView.layoutManager // location of tap in myTextView coordinates and taking the inset into account var location = sender.location(in: myTextView) location.x -= myTextView.textContainerInset.left; location.y -= myTextView.textContainerInset.top; // character index at tap location let characterIndex = layoutManager.characterIndex(for: location, in: myTextView.textContainer, fractionOfDistanceBetweenInsertionPoints: nil) // if index is valid then do something. if characterIndex < myTextView.textStorage.length { let orgString = myTextView.attributedText.string //Find the WWW var didFind = false var count:Int = characterIndex while(count > 2 && didFind == false){ let myRange = NSRange(location: count-1, length: 2) let substring = (orgString as NSString).substring(with: myRange) // print(substring,count) if substring == " w" || (substring == "w." && count == 3){ didFind = true // print("Did find",count) var count2 = count while(count2 < orgString.characters.count){ let myRange = NSRange(location: count2 - 1, length: 2) let substring = (orgString as NSString).substring(with: myRange) // print("Did 2",count2,substring) count2 += 1 //If it was at the end of textView if count2 == orgString.characters.count { let length = orgString.characters.count - count let myRange = NSRange(location: count, length: length) let substring = (orgString as NSString).substring(with: myRange) openLink(link: substring) print("It's a Link",substring) return } //If it's in the middle if substring.hasSuffix(" "){ let length = count2 - count let myRange = NSRange(location: count, length: length) let substring = (orgString as NSString).substring(with: myRange) openLink(link: substring) print("It's a Link",substring) return } } return } if substring.hasPrefix(" "){ print("Not a link") return } count -= 1 } } } func openLink(link:String){ if let checkURL = URL(string: "http://\(link.replacingOccurrences(of: " ", with: ""))") { if UIApplication.shared.canOpenURL(checkURL) { UIApplication.shared.open(checkURL, options: [:], completionHandler: nil) print("url successfully opened") } } else { print("invalid url") } } public override func didMoveToWindow() { if self.window == nil{ self.removeGestureRecognizer(tap) print("ClickableTextView View removed from") } } }