How to get userInfo JSON Value inside didReceiveRemoteNotification

Question

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

        if applica         


        

Answer 1

As mentioned in the comments, there is no key test in the APNS payload.
If the value for key message is guaranteed to be sent always you can easily unwrap the value

let msg = userInfo["message"] as! String
print(msg)

otherwise use optional binding

if let msg = userInfo["message"] as? String {
    print(msg)
}

To get the alert dictionary from the aps key and print for example the body string use

if let aps = userInfo["aps"] as? [String:Any],
   let alertDict = aps["alert"] as? [String:String] {
    print("body :", alertDict["body"]!)
}

Answer 2

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)
}