application:didReceiveRemoteNotification:fetchCompletionHandler错误

Question

以下是我的完整"AppDelegate.swift“文件：

import UIKit

import Parse
import Bolts

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?

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

        Parse.setApplicationId("NOT SHOWING MY KEY",
            clientKey: "NOT SHOWING MY KEY2")

        // Register for Push Notitications
        if application.applicationState != UIApplicationState.Background {
            // Track an app open here if we launch with a push, unless
            // "content_available" was used to trigger a background push (introduced in iOS 7).
            // In that case, we skip tracking here to avoid double counting the app-open.

            let preBackgroundPush = !application.respondsToSelector("backgroundRefreshStatus")
            let oldPushHandlerOnly = !self.respondsToSelector("application:didReceiveRemoteNotification:fetchCompletionHandler:")
            var pushPayload = false
            if let options = launchOptions {
                pushPayload = options[UIApplicationLaunchOptionsRemoteNotificationKey] != nil
            }
            if (preBackgroundPush || oldPushHandlerOnly || pushPayload) {
                //PFAnalytics.trackAppOpenedWithLaunchOptions(launchOptions)
                PFAnalytics.trackAppOpenedWithLaunchOptionsInBackground(launchOptions, block: nil)
            }
        }
        if application.respondsToSelector("registerUserNotificationSettings:") {
            let userNotificationTypes = UIUserNotificationType.Alert | UIUserNotificationType.Badge | UIUserNotificationType.Sound
            let settings = UIUserNotificationSettings(forTypes: userNotificationTypes, categories: nil)
            application.registerUserNotificationSettings(settings)
            application.registerForRemoteNotifications()
        } else {
            let types = UIRemoteNotificationType.Badge | UIRemoteNotificationType.Alert | UIRemoteNotificationType.Sound
            application.registerForRemoteNotificationTypes(types)
        }

        return true
    }

    func application(application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {
        let installation = PFInstallation.currentInstallation()
        installation.setDeviceTokenFromData(deviceToken)
        //installation.saveInBackground()
        installation.saveInBackgroundWithTarget(nil, selector: nil)
    }

    func application(application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: NSError) {
        if error.code == 3010 {
            println("Push notifications are not supported in the iOS Simulator.")
        } else {
            println("application:didFailToRegisterForRemoteNotificationsWithError: %@", error)
        }
    }

    func application(application: UIApplication,  didReceiveRemoteNotification userInfo: [NSObject : AnyObject],  fetchCompletionHandler completionHandler: (UIBackgroundFetchResult) -> Void) {
        if application.applicationState == .Inactive {
            PFAnalytics.trackAppOpenedWithRemoteNotificationPayload(userInfo)
        }
    }

    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) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
    }

    func applicationWillEnterForeground(application: UIApplication) {
        // Called as part of the transition from the background to the inactive 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.
    }

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

我在这里建立了一切：push/ios/swift/existing

当我打开xCode，用有线连接iphone测试我的应用程序时，当我在站点上按下“尝试”键时，我就会出错：

警告:应用程序委托收到了对-application:didReceiveRemoteNotification:fetchCompletionHandler:的调用，但未调用完成处理程序。

Answer 1

我把你的AppDelegate.swift弄干净了一点。这应该是注册和使用推送通知所需的全部内容。当用户打开应用程序时，我还在末尾添加了一个函数来清除徽章计数器：

import UIKit
import Parse
import Bolts

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?

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

        Parse.setApplicationId("NOT SHOWING MY KEY",
            clientKey: "NOT SHOWING MY KEY2")

        // Register for Push Notitications
        let userNotificationTypes = (UIUserNotificationType.Alert |
            UIUserNotificationType.Badge |
            UIUserNotificationType.Sound);

        let settings = UIUserNotificationSettings(forTypes: userNotificationTypes, categories: nil)
        application.registerUserNotificationSettings(settings)
        application.registerForRemoteNotifications()


        return true
    }

    func application(application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {
        let installation = PFInstallation.currentInstallation()
        installation.setDeviceTokenFromData(deviceToken)
        installation.saveInBackground()
    }

    func application(application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: NSError) {
        if error.code == 3010 {
            println("Push notifications are not supported in the iOS Simulator.")
        } else {
            println("application:didFailToRegisterForRemoteNotificationsWithError: %@", error)
        }
    }

    func application(application: UIApplication,  didReceiveRemoteNotification userInfo: [NSObject : AnyObject],  fetchCompletionHandler completionHandler: (UIBackgroundFetchResult) -> Void) {
        if application.applicationState == .Inactive {
            PFAnalytics.trackAppOpenedWithRemoteNotificationPayload(userInfo)
        }
    }

    // ADDED FUNCTION:
    func applicationDidBecomeActive(application: UIApplication) {

        //Reset badge counter to zero
        var currentInstallation = PFInstallation.currentInstallation()
        if(currentInstallation.badge != 0){
            currentInstallation.badge = 0
        }
    }



}

Answer 2

请按照错误信息的建议执行:调用完成处理程序

从文件中

一旦处理完通知，就必须调用处理程序参数中的块，否则应用程序将被终止。您的应用程序有30秒的挂钟时间来处理通知并调用指定的完成处理程序块。实际上，一旦处理完通知，就应该立即调用处理程序块。该系统跟踪您的应用程序后台下载所需的时间、功耗和数据成本。在处理远程通知时使用大量能量的应用程序可能并不总是早早地被唤醒，以处理未来的通知。

因此，例如，调用

completionHandler(.NewData)