Question

我尝试使用Parse.com推送通知服务向我的iOS应用添加推送通知，但我遇到了一些设备未接收通知的问题。

当前代码

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    Parse.setApplicationId("*****", clientKey: "*****")

    // 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)
        }
    }
    if application.respondsToSelector("registerUserNotificationSettings:") {
        let settings = UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)
        application.registerUserNotificationSettings(settings)
        application.registerForRemoteNotifications()
    }else {
        let types : UIRemoteNotificationType = [.Badge, .Alert, .Sound]
        application.registerForRemoteNotificationTypes(types)
    }
    return true
}

func application(application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {
    // Store the deviceToken in the current Installation and save it to Parse
    let installation = PFInstallation.currentInstallation()
    installation.setDeviceTokenFromData(deviceToken)
}

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

func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) {
    if application.applicationState == UIApplicationState.Inactive {
        PFAnalytics.trackAppOpenedWithRemoteNotificationPayload(userInfo)
    }
}

这似乎适用于某些设备（在同事的iPhone 5上测试过 - 在我的老板和iPhone 6上测试过 - 没有工作）

我目前使用的代码也给了我2个警告，这是（我怀疑的）推送通知的原因不适用于每个iDevice。

警告1：

/Users/ds/code/rp-iOS/rp/AppDelegate.swift:43:25：＆＃39; UIRemoteNotificationType＆＃39;在iOS 8.0中已弃用：使用UIUserNotificationType进行用户通知，使用registerForRemoteNotifications接收远程通知。

第43行：

let types : UIRemoteNotificationType = [.Badge, .Alert, .Sound]

警告2：

/Users/ds/code/rp-iOS/rp/AppDelegate.swift:44:25：＆＃39; registerForRemoteNotificationTypes＆＃39;在iOS 8.0中已弃用：请使用registerForRemoteNotifications和registerUserNotificationSettings：而不是

第44行：

application.registerForRemoteNotificationTypes(types)

现在我对这些警告感到困惑，因为我从Parse.com文档中复制了代码 - 所以我做错了什么？看起来这个else子句为运行旧版iOS的设备提供了向后兼容性。

在我的Parse.com Push控制台中，我也遇到了一些错误：

非常感谢任何帮助。

Answer 1

在didRegisterForRemoteNotificationsWithDeviceToken中尝试添加此行代码。

installation.saveInBackground()

为了摆脱我建议使用此代码的警告（为了方便和重用的能力，我把它放在静态函数中）

static func askForPushNotifications(){
  let settings = UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)
  UIApplication.sharedApplication().registerUserNotificationSettings(settings)
  UIApplication.sharedApplication().registerForRemoteNotifications()
}

Parse.com注册推送通知

1 个答案: