Using the newer Firebase cloud messaging with method swizzling i am successfully able to receive a payload in the didReceiveRemoteNotification method in my app delegate when my app is foregrounded. However i do not get any sort of payload and didReceiveRemoteNotification does not get called when my app is backgrounded, despite the api response that the message is successfully sent (see below)
Here is the request that i send to the FCM api to trigger a push notification https://fcm.googleapis.com/fcm/send
{
"to": "{valid-registration-token}",
"priority":"high", //others suggested setting priority to high would fix, but did not
"notification":{
"body":"Body3",
"title":"test"
}
}
with response from FCM
{
"multicast_id": 6616533575211076304,
"success": 1,
"failure": 0,
"canonical_ids": 0,
"results": [
{
"message_id": "0:1468906545447775%a4aa0efda4aa0efd"
}
]
}
Here is my appDelegate code
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
Fabric.with([Crashlytics.self])
FIRApp.configure()
NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(self.tokenRefreshNotification),
name: kFIRInstanceIDTokenRefreshNotification, object: nil)
return true
}
func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject], fetchCompletionHandler completionHandler: (UIBackgroundFetchResult) -> Void) {
// Let FCM know about the message for analytics etc.
FIRMessaging.messaging().appDidReceiveMessage(userInfo)
// Print full message.
print("%@", userInfo)
// handle your message
// let localNotification = UILocalNotification()
// localNotification.fireDate = NSDate()
// let notification = userInfo["notification"]!
// localNotification.alertBody = notification["body"] as? String
// localNotification.alertTitle = notification["title"] as? String
// localNotification.timeZone = NSTimeZone()
// application.scheduleLocalNotification(localNotification)
}
func tokenRefreshNotification(notification: NSNotification) {
let refreshedToken = FIRInstanceID.instanceID().token()!
print("InstanceID token: \(refreshedToken)")
LoginVC.registerForPushNotifications()
connectToFcm()
}
//foreground messages
func applicationDidBecomeActive(application: UIApplication) {
connectToFcm()
}
// [START disconnect_from_fcm]
func applicationDidEnterBackground(application: UIApplication) {
FIRMessaging.messaging().disconnect()
print("Disconnected from FCM.")
}
func connectToFcm() {
FIRMessaging.messaging().connectWithCompletion { (error) in
if (error != nil) {
print("Unable to connect with FCM. \(error)")
} else {
print("Connected to FCM.")
}
}
}
}
I call this code at a later flow in my app to ask for permissions
static func registerForPushNotifications() {
let settings: UIUserNotificationSettings =
UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)
UIApplication.sharedApplication().registerUserNotificationSettings(settings)
UIApplication.sharedApplication().registerForRemoteNotifications()
}
Since i am able to receive notifications while app is foregrounded i assume this would allay all concerns that my apns certificates are not uploaded or that the registration token is incorrect. If that is not the case, please comment and i'll go down that rabbit hole again. There's probably something simple that i am overlooking, but how can i get the notifications to appear while the app is backgrounded? Thanks