在我的项目中，我必须获得 GCM 推送通知，我做的一切都很完美，服务器向我发送了注册 token ，GCM 服务器连接完美，但通知没有进入我的设备。

我的 xcode 控制台显示如下:

2015-07-17 11:20:41.701 GCMSwift[1134:421304] You've implemented -[<UIApplicationDelegate> application:didReceiveRemoteNotification:fetchCompletionHandler:], but you still need to add "remote-notification" to the list of your supported UIBackgroundModes in your Info.plist.
2015-07-17 11:20:41.718 GCMSwift[1134:421304] Attempted to configure [Identity, Analytics, AdMob, SignIn, AppInvite, CloudMessaging].
2015-07-17 11:20:41.719 GCMSwift[1134:421304] Successfully configured [CloudMessaging].
2015-07-17 11:20:41.720 GCMSwift[1134:421304] Failed to configure [].
2015-07-17 11:20:41.721 GCMSwift[1134:421304] Subspecs not present, so not configured [Identity, Analytics, AdMob, SignIn, AppInvite].
Registration Token: l3OcbsTm5nQ:APA91bGs6cUSE8GeJZcsW3pL6i-O4VIwDqifLFzfwnKjZDQy6bD0zlxiqAH-XfErDzmZka5q5o01YnN9a8roCfQnP0QGarpZk2dtt5ebL0GImkSCQYfqrrK1VCshT8Jo7MMYuEHvktUE
Connected to GCM
Already subscribed to /topics/global

这是我的代码:

import UIKit

@UIApplicationMain

class AppDelegate: UIResponder, UIApplicationDelegate,GGLInstanceIDDelegate {

    var window: UIWindow?

    // GCM iVars.
    var registrationOptions = [String: AnyObject]()
    var gcmSenderID: String?

    var connectedToGCM = false
    var subscribedToTopic = false
    var registrationToken: String?

    let registrationKey = "onRegistrationCompleted"
    let messageKey = "onMessageReceived"
    let subscriptionTopic = "/topics/global"

    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        // Override point for customization after application launch.

        /**************** GCM Google service. ***********************/
        // [START_EXCLUDE]
        // Configure the Google context: parses the GoogleService-Info.plist, and initializes
        // the services that have entries in the file
        var configureError:NSError?
        GGLContext.sharedInstance().configureWithError(&configureError)
        if configureError != nil {
            println("Error configuring the Google context: \(configureError)")
        }
        gcmSenderID = GGLContext.sharedInstance().configuration.gcmSenderID
        // [END_EXCLUDE]

        // Register for remote notifications
        var types: UIUserNotificationType = UIUserNotificationType.Badge | UIUserNotificationType.Alert | UIUserNotificationType.Sound
        var settings: UIUserNotificationSettings =
        UIUserNotificationSettings( forTypes: types, categories: nil )
        application.registerUserNotificationSettings(settings)
        application.registerForRemoteNotifications()

        // [START start_gcm_service]
        GCMService.sharedInstance().startWithConfig(GCMConfig.defaultConfig())
        // [END start_gcm_service]

        return true
    }

    func application(application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {
        // Start the GGLInstanceID shared instance with the default config and request a registration token to enable reception of notifications
        GGLInstanceID.sharedInstance().startWithConfig(GGLInstanceIDConfig.defaultConfig())
        registrationOptions = [kGGLInstanceIDRegisterAPNSOption:deviceToken,
            kGGLInstanceIDAPNSServerTypeSandboxOption:true]
        GGLInstanceID.sharedInstance().tokenWithAuthorizedEntity(gcmSenderID, scope: kGGLInstanceIDScopeGCM, options: registrationOptions, handler: registrationHandler)
    }

    // [START receive_apns_token_error]
    func application( application: UIApplication, didFailToRegisterForRemoteNotificationsWithError
        error: NSError ) {
            println("Registration for remote notification failed with error: \(error.localizedDescription)")
            // [END receive_apns_token_error]
            let userInfo = ["error": error.localizedDescription]
            NSNotificationCenter.defaultCenter().postNotificationName(
                registrationKey, object: nil, userInfo: userInfo)
    }


    func onTokenRefresh() {
        // A rotation of the registration tokens is happening, so the app needs to request a new token.
        println("The GCM registration token needs to be changed.")
        GGLInstanceID.sharedInstance().tokenWithAuthorizedEntity(gcmSenderID,
            scope: kGGLInstanceIDScopeGCM, options: registrationOptions, handler: registrationHandler)
    }

    func registrationHandler(registrationToken: String!, error: NSError!){
        // registration handeler.
        if (registrationToken != nil) {
            self.registrationToken = registrationToken
            println("Registration Token: \(registrationToken)")
            self.subscribeToTopic()
            let userInfo = ["registrationToken": registrationToken]
            NSNotificationCenter.defaultCenter().postNotificationName(
                self.registrationKey, object: nil, userInfo: userInfo)
        } else {
            println("Registration to GCM failed with error: \(error.localizedDescription)")
            let userInfo = ["error": error.localizedDescription]
            NSNotificationCenter.defaultCenter().postNotificationName(
                self.registrationKey, object: nil, userInfo: userInfo)
        }
    }

    func subscribeToTopic() {
        // If the app has a registration token and is connected to GCM, proceed to subscribe to the
        // topic
        if(registrationToken != nil && connectedToGCM) {
            GCMPubSub.sharedInstance().subscribeWithToken(self.registrationToken, topic: subscriptionTopic,
                options: nil, handler: {(NSError error) -> Void in
                    if (error != nil) {
                        // Treat the "already subscribed" error more gently
                        if error.code == 3001 {
                            println("Already subscribed to \(self.subscriptionTopic)")
                        } else {
                            println("Subscription failed: \(error.localizedDescription)");
                        }
                    } else {
                        self.subscribedToTopic = true;
                        NSLog("Subscribed to \(self.subscriptionTopic)");
                    }
            })
        }
    }

    /******************** DID RECIEVE PUSH NOTIFICATION ************************/
    // [START ack_message_reception]
    func application( application: UIApplication,
        didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) {
            println("Notification received: \(userInfo)")
            // This works only if the app started the GCM service
            GCMService.sharedInstance().appDidReceiveMessage(userInfo);
            // Handle the received message
            // [START_EXCLUDE]
            NSNotificationCenter.defaultCenter().postNotificationName(messageKey, object: nil,
                userInfo: userInfo)
            // [END_EXCLUDE]
    }

    func application( application: UIApplication,
        didReceiveRemoteNotification userInfo: [NSObject : AnyObject],
        fetchCompletionHandler handler: (UIBackgroundFetchResult) -> Void) {
            println("Notification received: \(userInfo)")
            // This works only if the app started the GCM service
            GCMService.sharedInstance().appDidReceiveMessage(userInfo);
            // Handle the received message
            // Invoke the completion handler passing the appropriate UIBackgroundFetchResult value
            // [START_EXCLUDE]
            NSNotificationCenter.defaultCenter().postNotificationName(messageKey, object: nil,
                userInfo: userInfo)
            handler(UIBackgroundFetchResult.NoData);
            // [END_EXCLUDE]
    }
    // [END ack_message_reception]


    func applicationWillResignActive(application: UIApplication) {
        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
    }

    func applicationDidEnterBackground(application: UIApplication) {
        GCMService.sharedInstance().disconnect()
        // [START_EXCLUDE]
        self.connectedToGCM = false
        // [END_EXCLUDE]
        println("Stop executing app and whent into background!")
    }

    func applicationWillEnterForeground(application: UIApplication) {
        // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
    }

    func applicationDidBecomeActive(application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
        GCMService.sharedInstance().connectWithHandler({
            (NSError error) -> Void in
            if error != nil {
                println("Could not connect to GCM: \(error.localizedDescription)")
            } else {
                self.connectedToGCM = true
                println("Connected to GCM")
                // [START_EXCLUDE]
                self.subscribeToTopic()
                // [END_EXCLUDE]
            }
        })
    }

    func applicationWillTerminate(application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
    }

}

但是我的设备没有收到通知，我需要在这里做任何额外的事情吗？我忘记添加任何东西了吗？并且我上传了 .p12 证书并且我已经完美地创建了 APNs 证书为什么我没有收到 GCM 通知并且“didReceiveRemoteNotification”方法没有调用我是否必须附加服务器 API key 或 SenderId 以及我上面写的代码。

最佳答案

如果您看到控制台第一行:

2015-07-17 11:20:41.701 GCMSwift[1134:421304] You've implemented -[<UIApplicationDelegate> application:didReceiveRemoteNotification:fetchCompletionHandler:], but you still need to add "remote-notification" to the list of your supported UIBackgroundModes in your Info.plist

您需要启用必需的背景模式。按照以下步骤操作:

• 在项目导航器中点击项目
• 在项目和目标列表中点击目标。
• 点击能力
• 展开并开启后台模式
• 点击远程通知

这将在您的 Info.plist 中添加背景模式支持。

关于ios - 未收到 GCM 推送通知，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/31469267/