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我正在尝试实现酷炫的 Firebase 电子邮件链接登录功能，但失败了。我成功设置发送电子邮件链接。但是，我无法获得打开应用程序的电子邮件链接。它只是打开预览页面，就像它无法打开应用程序一样。

我已经测试了我设置的动态链接，我可以让它在设备中打开应用程序。我只是无法获得电子邮件链接来做同样的事情。

我的应用程序中的代码：

func sendFirebaseEmailLink() {

    let actionCodeSettings = ActionCodeSettings.init()

    // userEmail comes from a textField
    let email = userEmail

    actionCodeSettings.url = URL.init(string: String(format: "https://<myappname>.firebaseapp.com/?email=%@", email))
    // The sign-in operation has to always be completed in the app.
    actionCodeSettings.handleCodeInApp = true
    actionCodeSettings.setIOSBundleID(Bundle.main.bundleIdentifier!)

    Auth.auth().sendSignInLink(toEmail: email,
        actionCodeSettings: actionCodeSettings) { error in

        if let error = error {
            print(error.localizedDescription)
            return
        }
        else {
            UserDefaults.standard.set(email, forKey: "Email")
            print("email sent to user")
        }
    }
}

当我说我已成功获得打开应用程序的动态链接时，我的意思是当我在安装了应用程序的设备上点击我创建的链接 (mylinkname.page.link/emaillogin) 时，它会打开应用程序。正因为如此，[这个有用的 Firebase 视频][1] 关于设置动态链接，我似乎已经得到了正确的这些细节，问题出在代码上，但我是新手，所以我不确定.

我花了几天的时间来解决这个问题，并尝试解析密集的 Firebase 文档，因此非常感谢任何想法。

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1 回答 1

4

我终于弄明白了。代码很好。这是与动态链接相关的问题。我在 Firebase 中设置了几个链接，因为我必须在某一时刻创建一个新的 Bundle ID。当我在 Firebase 中删除旧邮件时，电子邮件链接开始起作用。

它像这样出现在我的应用程序关联网站中，奇怪的是，即使我删除了旧链接，它仍然如此，但至少它现在可以工作了！

{"applinks":{"apps":[],"details":[{"appID":"TEAMID.com.OLDBUNDLEIDENTIFIER.APPNAME","paths":["NOT / /*","/*"] },{"appID":"TEAMID.com.NEWBUNDLEIDENTIFIER.APPNAME","paths":["NOT // " ,"/ "]}]}}

更新：我实现无密码电子邮件登录的完整代码如下。使用文档拼凑起来对我来说很痛苦，所以希望这可以为您省去麻烦。

假设您了解 Firebase 设置的基础知识的关键步骤。

1) 使用Firebase 视频教程设置动态链接。

2）视图控制器中的代码：

var userEmail: String?
var link: String?

func sendFirebaseEmailLink() {

    let actionCodeSettings = ActionCodeSettings.init()
    let email = userEmail
    actionCodeSettings.url = URL.init(string: String(format: "https://<myappname>.page.link/emaillogin/?email=%@", email!))
    // The sign-in operation has to always be completed in the app.
    actionCodeSettings.handleCodeInApp = true
    actionCodeSettings.setIOSBundleID(Bundle.main.bundleIdentifier!)

    Auth.auth().sendSignInLink(toEmail: email!,
        actionCodeSettings: actionCodeSettings) { error in

        if let error = error {
            print(error.localizedDescription)
            return
        }
        else {
            UserDefaults.standard.set(email, forKey: "Email")
            print("email sent to user")
        }

        // TODO: Notify user to check email and click the link.
    }
}

// Sign in user after they clicked email link called from AppDelegate
@objc func signInUserAfterEmailLinkClick() {

    // Get link url string from the dynamic link captured in AppDelegate.
    if let link = UserDefaults.standard.value(forKey: "Link") as? String {
        self.link = link
    }

    // Sign user in with the link and email.
    Auth.auth().signIn(withEmail: userEmail!, link: link!) { (result, error) in

        if error == nil && result != nil {

            if (Auth.auth().currentUser?.isEmailVerified)! {
                print("User verified with passwordless email")

                // TODO: Do something after user verified like present a new View Controller

            }
            else {
                print("User NOT verified by passwordless email")

            }
        }
        else {
            print("Error with passwordless email verfification: \(error?.localizedDescription ?? "Strangely, no error avaialble.")")
        }   
    }
}

3) AppDelegate 中的代码

// For Passwordless Email Login to Handle Dynamic Link after User Clicks Email Link
func application(_ application: UIApplication, continue userActivity: NSUserActivity,
                 restorationHandler: @escaping ([UIUserActivityRestoring]?) -> Void) -> Bool {

    if let incomingURL = userActivity.webpageURL {
        print("Incoming URL is \(incomingURL)")

        // Parse incoming
        let linkHandled = DynamicLinks.dynamicLinks().handleUniversalLink(incomingURL) { (dynamicLink, error) in

            guard error == nil else {
                print("Found an error: \(error!.localizedDescription)")
                return
            }
            if let dynamicLink = dynamicLink {
                self.handleIncomingDynamicLink(dynamicLink)
            }
        }
        if linkHandled {
            return true
        }
        else {
            // Maybe do other things with dynamic links in future?
            return false
        }
    }
    return false
}

// Handles the link and saves it to userDefaults to assist with login.
func handleIncomingDynamicLink(_ dynamicLink: DynamicLink) {
    guard let url = dynamicLink.url else {
        print("My dynamic link object has no url")
        return
    }
    print("Incoming link parameter is \(url.absoluteString)")

    let link = url.absoluteString
    if Auth.auth().isSignIn(withEmailLink: link) {

        // Save link to userDefaults to help finalize login.
        UserDefaults.standard.set(link, forKey: "Link")

        // Send notification to ViewController to push the First Time Login VC
        NotificationCenter.default.post(
            name: Notification.Name("SuccessfulPasswordlessEmailNotification"), object: nil, userInfo: nil)
    }
}
于 2019-04-18T12:02:46.180 回答