swift – NSAttributedStringKey.foregroundColor无效

概述我正在使用ZSWTappableLabel和ZSWTaggedString来显示标签内的链接. import ZSWTappableLabelimport ZSWTaggedString pod版本是： pod 'ZSWTappableLabel', '~> 2.0' pod 'ZSWTaggedString/Swift', '~> 4.0' 默认情况下,链接过去常常以白色显示(与标签颜色相 我正在使用ZSWTappableLabel和ZSWTaggedString来显示标签内的链接.

import ZSWTappableLabelimport ZSWTaggedString

pod版本是：

pod 'ZSWTappableLabel','~> 2.0'  pod 'ZSWTaggedString/Swift','~> 4.0'

默认情况下,链接过去常常以白色显示(与标签颜色相同),但在最近发生的一些更新(可能是pod更新或xcode版本,我无法准确指出是什么)之后,链接已经开始以蓝色显示.将NSAttributedStringKey.foregroundcolor设置为白色似乎不会影响任何内容. NSAttributedStringKey.backgroundcolor会影响它,但由于某种原因,foregroundcolor似乎没有任何效果.

如何设置白色链接？

func setTermsAndPrivacylinkLabel(){    termsAndPrivacyLabel.tapDelegate = self    let options = ZSWTaggedStringOptions()    options["link"] = .dynamic({ tagname,tagAttributes,stringAttributes in        guard let type = tagAttributes["type"] as? String else {            return [NSAttributedStringKey : Any]()        }        var foundURL: NSURL?        switch type {        case "privacy":            foundURL = NSURL(string: "\(privacyUrl)")!        case "tos":            foundURL = NSURL(string: "\(termsUrl)")!        default:            break        }        guard let URL = foundURL else {            return [NSAttributedStringKey : Any]()        }        return [            .tappableRegion: true,NSAttributedStringKey.foregroundcolor: UIcolor.white,NSAttributedStringKey.Font: UIFont.boldSystemFont(ofSize: 13.0),.link: foundURL        ]    })    let string = NSLocalizedString("By logging in,you agree to our <link type='tos'>terms</link> and <link type='privacy'>privacy</link>.",comment: "")    termsAndPrivacyLabel.attributedText = try? ZSWTaggedString(string: string).attributedString(with: options)}func tappableLabel(_ tappableLabel: ZSWTappableLabel,tappedAt IDx: Int,withAttributes attributes: [NSAttributedStringKey : Any] = [:]) {    guard let url = attributes[.link] as? URL else {        return    }    UIApplication.shared.openURL(url)}

解决方法 这有效：

extension HomeVIEwController:  ZSWTappableLabelTapDelegate {        static let urlAttributename = NSAttributedStringKey(rawValue: "URL")        func setlinks(){            termsPrivacyLabel.tapDelegate = self            enum linkType: String {                case privacy = "privacy"                case terms = "terms"                var URL: Foundation.URL {                    switch self {                    case .privacy:                        return Foundation.URL(string: "myprivacyurl")!                    case .terms:                        return Foundation.URL(string: "mytermsurl")!                    }                }            }            let options = ZSWTaggedStringOptions()            options["link"] = .dynamic({ tagname,stringAttributes in                guard let typestring = tagAttributes["type"] as? String,let type = linkType(rawValue: typestring) else {                        return [NSAttributedStringKey: AnyObject]()                }                return [                    .tappableRegion: true,.tappableHighlightedForegroundcolor: UIcolor.white,.foregroundcolor: UIcolor.lightGray,.underlinestyle: NSUnderlinestyle.styleNone.rawValue,.Font: UIFont.boldSystemFont(ofSize: 13.0),HomeVIEwController.urlAttributename: type.URL                ]            })            let string = NSLocalizedString("By signing in,you agree to the <link type='terms'>terms</link> and <link type='privacy'>privacy</link>.",comment: "")            termsPrivacyLabel.attributedText = try? ZSWTaggedString(string: string).attributedString(with: options)        }        func tappableLabel(_ tappableLabel: ZSWTappableLabel,withAttributes attributes: [NSAttributedStringKey : Any] = [:]) {            guard let URL = attributes[HomeVIEwController.urlAttributename] as? URL else {                return            }            if #available(iOS 9,*) {                show(SFSafariVIEwController(url: URL),sender: self)            } else {                UIApplication.shared.openURL(URL)            }        }

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