Question

我正在使用FCM推送通知构建iOS应用。我关注了Google Firebase文档和其他教程，但我的AppDelegate从未执行函数didReceiveRemoteNotification，因此当我从Firebase控制台发送通知时，它什么也没做。

我现在有这个：

AppDelegate.swift

 func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

        application.registerForRemoteNotifications()            
        FIRApp.configure()
        connectToFcm()

        return true
    }

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    token = deviceToken.map { String(format: "%02.2hhx", $0) }.joined()
    print("<-TOKEN->")
    print(token)
}

func connectToFcm() {
    FIRMessaging.messaging().connect { (error) in
        if (error != nil) {
            print("Unable to connect with FCM. \(error)")
        } else {
            print("Connected to FCM.")
        }
    }
}

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {

    // Print message ID.
    print("Message ID: \(userInfo["gcm.message_id"]!)")

    // Print full message.
    print("%@", userInfo)
}

我还在我的CocoaPods文件上安装了Firebase。
我在Firebase控制台中使用相同的构建ID注册了应用程序。
我有“必需的背景模式 - ＆gt;应用下载内容作为回应在我的info.plist文件中推送通知
我已创建并将我的APNS证书上传到我在Firebase控制台中的设置。

当我启动应用程序时，它会成功构建，并在控制台上打印出来：

[Firebase/Analytics][I-ACS023012] Firebase Analytics enabled
2017-05-29 12:10:56.101 incidenciasSifu[1811] <Notice> [Firebase/Analytics][I-ACS023012] Firebase Analytics enabled
Optional(Error Domain=com.google.fcm Code=2001 "FIRMessaging is already connected" UserInfo={NSLocalizedFailureReason=FIRMessaging is already connected})
<-TOKEN->
Optional("03545fbbb986e2ffdfa50ac9e3eb6fe07e6fe4694cdfd000d673a0bf5ea53f6a")
Connected to FCM.

我是Swift上的新手，我不知道是否忘记在AppDelegate中添加一些代码。

请帮忙！我在这上花了太多时间:(

Answer 1

在注册推送通知之前，您需要让用户授予您必要的权限。在didFinishLaunchingWithOptions方法中尝试此代码：

//The search code starts from here
while(first <= last && key >= first && key <= last) {
    pos = (int)((double)first + (double)(last - first) * (double)(key - arr[first]) / (double)(arr[last] - arr[first]));

    if(key < arr[pos]) {
        last = pos - 1;
    }
    else if(key > arr[pos]) {
        first = pos + 1;
    }
    else {
        cout << "Found the value at index:\t" << pos << endl;
        break;
    }
}

检查应用启动的原因也很有用。在此方法中添加以下代码：

if #available(iOS 10.0, *) {
    UNUserNotificationCenter.current().requestAuthorization(options: [.badge, .alert, .sound]) { (granted, error) in
        if granted {
            application.registerForRemoteNotifications()
        }
    }
} else {
    let notificationTypes: UIUserNotificationType = [.alert, .badge, .sound]
    let settings = UIUserNotificationSettings(types: notificationTypes, categories: nil)
    application.registerUserNotificationSettings(settings)
    application.registerForRemoteNotifications()
}

此外，您可以添加didFailToRegisterForRemoteNotificationsWithError方法以了解可能出错的原因：

if let remoteNotification = launchOptions?[UIApplicationLaunchOptionsKey.remoteNotification] {
    self.application(application, didReceiveRemoteNotification: remoteNotification as! [AnyHashable : Any])
}

Answer 2

您需要在appdelegate的didFinishLaunchingWithOptions注册通知。

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {


        let center = UNUserNotificationCenter.current()
        center.requestAuthorization(options:[.badge, .alert, .sound]) { (granted, error) in
            //  actions based on whether notifications were authorized or not
        }
        application.registerForRemoteNotifications()
        return true
    }

没有收到从FCM到iOS Swift 3

2 个答案: