GCM group notifications not received on iOS when app is in background - ios

Question

I'm using google cloud messaging to send notifications to my iOS application.
I've configured the GCM services in my App and the notifications are working correctly. I mean that my device can request a gcmRegistrationToken and I can send notification using postman to my app. These notifications are working both when app is active and inactive.
Now I want to use the Device Groups Notifications feature. So I created a group for all my user's device:
https://android.googleapis.com/gcm/notification
Content-Type:application/json
Authorization:key=API_KEY
project_id:SENDER_ID
{
"operation": "create",
"notification_key_name": "appUser-userA",
"registration_ids": ["regToken1", "regToken2"]
}
I receive my device group key:
{
"notification_key": "deviceGroupKey"
}
But no when I want to send notification to the device group using postman, I only receive the notification when the app is ACTIVE.
Here is my POST request:
https://android.googleapis.com/gcm/send
Content-Type:application/json
Authorization:key=API_KEY
{
"to" : "deviceGroupToken",
"content_available" : true,
"priority": "high",
"sound": "default",
"notification" : {
"body_loc_key" : "NOTIF_FRIEND_REQUEST",
"body_loc_args" : ["UserB"],
"click_action": "NEW_FRIEND_REQUEST"
},
"data" : {
"friendRequestId": "12345678901234567890"
}
}
Here is my AppDelegate.swift:
//
// AppDelegate.swift
//
import UIKit
import CoreData
#UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, GGLInstanceIDDelegate, GCMReceiverDelegate {
var window: UIWindow?
var connectedToGCM = false
var gcmSenderID: String?
var gcmRegistrationToken: String?
var gcmRegistrationOptions = [String: AnyObject]()
let gcmRegistrationKey = "onRegistrationCompleted"
var subscribedToTopic = false
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
print("bundleId=\(NSBundle.mainBundle().bundleIdentifier)")
// Configure Google Analytics
// Configure tracker from GoogleService-Info.plist.
var configureError:NSError?
GGLContext.sharedInstance().configureWithError(&configureError)
assert(configureError == nil, "Error configuring Google services: \(configureError)")
// Optional: configure GAI options.
let gai = GAI.sharedInstance()
gai.trackUncaughtExceptions = true // report uncaught exceptions
gai.logger.logLevel = GAILogLevel.Verbose // remove before app release
// Override point for customization after application launch.
application.registerUserNotificationSettings(UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)) // types are UIUserNotificationType members
// Register for remotes notifications
UIApplication.sharedApplication().registerForRemoteNotifications()
// Get the gcm sender id
gcmSenderID = GGLContext.sharedInstance().configuration.gcmSenderID
var gcmConfig = GCMConfig.defaultConfig()
gcmConfig.receiverDelegate = self
GCMService.sharedInstance().startWithConfig(gcmConfig)
return true
}
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.
GCMService.sharedInstance().disconnect()
connectedToGCM = false
}
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.
// -->The app go through this point
// Connect to the GCM server to receive non-APNS notifications
GCMService.sharedInstance().connectWithHandler(gcmConnectionHandler)
// -->The app go through this point
}
func gcmConnectionHandler(error: NSError?) {
// -->The app never enter in this function
if let error = error {
print("Could not connect to GCM: \(error.localizedDescription)")
} else {
self.connectedToGCM = true
print("Connected to GCM")
// ...
}
}
func applicationWillTerminate(application: UIApplication) {
// Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
self.saveContext()
}
func application(application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {
// Create a config and set a delegate that implements the GGLInstaceIDDelegate protocol.
let instanceIDConfig = GGLInstanceIDConfig.defaultConfig()
instanceIDConfig.delegate = self
// Start the GGLInstanceID shared instance with that config and request a registration
// token to enable reception of notifications
GGLInstanceID.sharedInstance().startWithConfig(instanceIDConfig)
gcmRegistrationOptions = [kGGLInstanceIDRegisterAPNSOption:deviceToken,
kGGLInstanceIDAPNSServerTypeSandboxOption:true]
GGLInstanceID.sharedInstance().tokenWithAuthorizedEntity(gcmSenderID,
scope: kGGLInstanceIDScopeGCM, options: gcmRegistrationOptions, handler: gcmRegistrationHandler)
}
func application(application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: NSError) {
print("-- Failed to get deviceToken: \(error.localizedDescription)")
}
func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) {
application.applicationIconBadgeNumber += 1
print(userInfo)
let apsInfo = userInfo["aps"] as! NSDictionary
var alertMessage = ""
print("********************** Received Notif")
if let alert = apsInfo["alert"] as? String{
alertMessage = alert
print(alertMessage)
}
else if let alert = apsInfo["alert"] as? NSDictionary {
if let body = alert["body"] as? String {
alertMessage = body
print(alertMessage)
}
else if let locKey = alert["loc-key"] as? String {
var alertBody = ""
if let locArgs = alert["loc-args"] as? [String] {
var safeArgs = ["", "", "", "", "", "", "", "", "", ""]
for var i = 0; i < locArgs.count && i < safeArgs.count; i++ {
safeArgs[i] = locArgs[i]
}
alertBody = String(format: NSLocalizedString(locKey, comment: ""),
safeArgs[0], safeArgs[1],
safeArgs[2], safeArgs[3],
safeArgs[4], safeArgs[5],
safeArgs[6], safeArgs[7],
safeArgs[8], safeArgs[9])
}
else {
alertBody = NSLocalizedString(locKey, comment: "")
}
alertMessage = alertBody
}
}
// If the application is currently on screen "Active" then we trigger a custom banner View for that notification to be shown
// Else the system will handle that and put it in the notification center
if application.applicationState == UIApplicationState.Active {
AGPushNoteView.showWithNotificationMessage(alertMessage, autoClose: true, completion: { () -> Void in
// Do nothing
})
}
else {
// if the app is inactive I try to trigger a local notification to check if the notification is received but not displayed
// or just not received because consol print doesn't work when app is inactive
var localNotification: UILocalNotification = UILocalNotification()
localNotification.alertBody = alertMessage
localNotification.fireDate = NSDate(timeIntervalSinceNow: 1)
UIApplication.sharedApplication().scheduleLocalNotification(localNotification)
}
}
func gcmRegistrationHandler(registrationToken: String!, error: NSError!) {
if (registrationToken != nil) {
self.gcmRegistrationToken = registrationToken
print("GCM Registration Token: \(registrationToken)")
let userInfo = ["registrationToken": registrationToken]
NSNotificationCenter.defaultCenter().postNotificationName(
self.gcmRegistrationKey, object: nil, userInfo: userInfo)
} else {
print("Registration to GCM failed with error: \(error.localizedDescription)")
let userInfo = ["error": error.localizedDescription]
NSNotificationCenter.defaultCenter().postNotificationName(self.gcmRegistrationKey, object: nil, userInfo: userInfo)
}
}
// MARK: - GGLInstanceIDDelegate
func onTokenRefresh() {
// A rotation of the registration tokens is happening, so the app needs to request a new token.
print("The GCM registration token needs to be changed.")
GGLInstanceID.sharedInstance().tokenWithAuthorizedEntity(gcmSenderID,
scope: kGGLInstanceIDScopeGCM, options: gcmRegistrationOptions, handler: gcmRegistrationHandler)
}
// MARK: - GCMReceiverDelegate
func willSendDataMessageWithID(messageID: String!, error: NSError!) {
if (error != nil) {
// Failed to send the message.
} else {
// Will send message, you can save the messageID to track the message
}
}
func didSendDataMessageWithID(messageID: String!) {
// Did successfully send message identified by messageID
}
// [END upstream_callbacks]
func didDeleteMessagesOnServer() {
// Some messages sent to this device were deleted on the GCM server before reception, likely
// because the TTL expired. The client should notify the app server of this, so that the app
// server can resend those messages.
}
func subscribeToTopic() {
// If the app has a registration token and is connected to GCM, proceed to subscribe to the
// topic
let subscriptionTopic = "/topics/test-global"
if(gcmRegistrationToken != nil && connectedToGCM) {
GCMPubSub.sharedInstance().subscribeWithToken(gcmRegistrationToken, topic: subscriptionTopic,
options: nil, handler: {(NSError error) -> Void in
if (error != nil) {
// Treat the "already subscribed" error more gently
if error.code == 3001 {
print("Already subscribed to \(subscriptionTopic)")
} else {
print("Subscription failed: \(error.localizedDescription)");
}
} else {
subscribedToTopic = true;
NSLog("Subscribed to \(subscriptionTopic)");
}
})
}
}
}
Do I have forgotten something in my code? or maybe it is not possible?
Any help would be appreciated.
PS: I tryed to send notification to topics "/topics/general" and it workss fine.