How to get userInfo JSON Value inside didReceiveRemoteNotification

Question

func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject])
{
        PFPush.handlePush(userInfo)

        if applica         


        

Answer 1

I use APNs Provider and json payload as below

{
  "aps" : {
    "alert" : {
      "title" : "I am title",
      "body" : "message body."
    },
  "sound" : "default",
  "badge" : 1
  }
}

Due to the provider originates it as a JSON-defined dictionary that iOS converts to an NSDictionary object, without subscript like Dictionary, but can use value(forKey:)

Reference from here

This's my way for Swift 4

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
    guard application.applicationState == .active else { return }
    guard let alertDict = ((userInfo["aps"] as? NSDictionary)?.value(forKey: "alert")) as? NSDictionary,
        let title = alertDict["title"] as? String,
        let body = alertDict["body"] as? String
        else { return }
    let alertController = UIAlertController(title: title, message: body, preferredStyle: .alert)
    let okAct = UIAlertAction(title: "Ok", style: .default, handler: nil)
    alertController.addAction(okAct)
    self.window?.rootViewController?.present(alertController, animated: true, completion: nil)
    completionHandler(UIBackgroundFetchResult.noData)
}