I have used Twilio Chat SDK for my iOS app. The notifications when new message is added to the channel is coming up fine. But it doesn't update the app's notification badge count. I have attached the screenshot for push notification configuration in Twilio Portal.
Also when I ask for user authorization for notification,
the options set are:
let options: UNAuthorizationOptions = [.badge, .sound, .alert]
Your notification payload should look like the following to update app badge count:
{
"aps" : {
"alert" : "You got notificaiton.",
"badge" : 5
}
}
When this payload is received the badge count updates to 5.
Update: As mentioned in the Twilio documentation:
To update badge count on an application icon, you should pass badge count from the Chat Client delegate to the application:
func chatClient(_ client: TwilioChatClient, notificationUpdatedBadgeCount badgeCount: UInt) {
UIApplication.shared.applicationIconBadgeNumber = Int(badgeCount)
}
Note: But, this only works when the App is active. To update the badge count when the App is inactive you need to configure notification payload to the above-mentioned format from via a custom Twilio server, default configuration doesn't allow this.
When the app is inactive you can use this method to append the badge count:
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: #escaping (UIBackgroundFetchResult) -> Void) {
if UIApplication.shared.applicationState != .active {
UIApplication.shared.applicationIconBadgeNumber += 1
}
}
Related
I'm developing an Swift iOS 14 app that send and recieves push notifications from Firebase Cloud Messaging.
From FCM I send a message with a payload that must be treated by the app, updating an internal SQLite database with the payload data for later, show items in a view.
When the app is in Foreground, I recieved the notification in the didReceiveRemoteNotification method and update the database but when the app is in Background or killed, the notification is recieved but no one method is called to handle the payload and update de database.
I've read many topics about this problem but in none have I come to find a solution.
At the moment I don't want to use an external database to insert the data, and later read the external database, but if there is no other options i will change the app (the reason is that i don't want to store any information out of the user application).
My AppDelegate.swift is the following:
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
//Firebase Auth + APNs
FirebaseApp.configure()
UNUserNotificationCenter.current().delegate = self
let authOptions: UNAuthorizationOptions = [.alert, .badge, .sound]
UNUserNotificationCenter.current().requestAuthorization(
options: authOptions,
completionHandler: {_, _ in })
application.registerForRemoteNotifications()
Messaging.messaging().delegate = self
return true
}
func messaging(_ messaging: Messaging, didReceiveRegistrationToken fcmToken: String) {
UserDefaults.standard.set(fcmToken, forKey: UserConstants.MESSAGING_TOKEN)
let dataDict:[String: String] = ["token": fcmToken]
NotificationCenter.default.post(name: Notification.Name("FCMToken"), object: nil, userInfo: dataDict)
}
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: #escaping (UIBackgroundFetchResult) -> Void) {
if(userInfo["name"] != nil) {
ContactsService.sharedInstance.addAlert(phoneNumber: userInfo["phone"] as! String, name: userInfo["name"] as! String, isLocalized: Bool(userInfo["isLocalized"] as? String), longitude: (userInfo["longitude"] as! NSString).doubleValue, latitude: (userInfo["latitude"] as! NSString).doubleValue)
}
}
Can someone help me, telling me if it's possible to do in that way or it's necessary to store the data externally to later retrieve it?
Thank you!
There are two types of push notifications, alert notifications and background notifications. Alert notifications allow you to deliver visible alerts that can be interacted with in ways that your app can customize.Background notifications allow your application to fetch data from the background, upon receiving push notifications. Background notification should be used to keep your application up to date, even if the application isn't running. Also as of ios 10(and above)instead of using the didReceiveRemoteNotification method you can use didReceive method for handling the alert notifications.
Now coming back to your question in case of the alert notification the didReceive/didReceiveRemoteNotification method is called when the application is in the foreground or when the user taps on the application. Since, you want to update the database you can use the background notifications instead of the alert notification as it will automatically raise your application even when it is in background and will also call the didReceiveRemoteNotification:fetchCompletionHandler. while sending a background push notification make sure you :
Edit Info.plist and check the "Enable Background Modes" and "Remote notifications" check boxes.
Add "content-available":1 to your push notification payload, otherwise the app won't be woken if it's in the background
The notification’s POST request should contain the apns-push-type header field with a value of background, and the apns-priority field with a value of 5.
For more info please refer :
https://developer.apple.com/documentation/usernotifications/setting_up_a_remote_notification_server/pushing_background_updates_to_your_app
Scenarios:
1) Silent or Normal payload when App's in Foreground:
Nothing happens
2) Silent payload when App's in Background:
Nothing happens
3) Normal payload when App's in Background:
If User click the notification to open the App.
triggers the application:didReceiveRemoteNotification:fetchCompletionHandler
If user open the App clicking the App icon:
Nothing happens
These are the payloads I'm using for the APNs:
Normal payload: .
{
"aps":{
"alert":"andre test",
"badge":0,
"sound":"default",
"content-available":1
},
"acme-syncalarm":"true"
}
Silent payload: .
{
"aps":{
"content-available":1
},
"acme-syncalarm":"true"
}
I've implemented the Remote Push Notification using this code:
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: #escaping (UIBackgroundFetchResult) -> Void) {
print("Receeeeeeeeived: \(userInfo)")
UIApplication.shared.applicationIconBadgeNumber = 11
completionHandler(.newData)
}
I also implemented this to check if the App is recovering from a kill state (as I've read in some Questions too), but the code never enters the print(rn)line.
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
if let rn = launchOptions?[UIApplicationLaunchOptionsKey.remoteNotification] {
print(rn)
}
}
EDIT 1 -
I have also enabled Remote Notifications in background mode for the App.
What do I have to do to cover the "Nothing Happens" Scenarios? 1 , 2 and 3.2 ?
Some notes:
"If user open the App clicking the App icon: Nothing happens" <-- That's expected, because you didn't interact with any notification directly. Imagine if you had 5 notifications arrived. How would you know which notification you should process...
normal payload won't have any key named content-available. So that again is a silent notification. Can you first see my answer here?
Some suggestions:
Make sure you've enabled Remote Notifications in background mode. Like this:
Additionally See here. iOS 11 initial releases were buggy for silent notifications. Make sure you have the latest version for your testing, otherwise it won't work. If you have an iOS 10 device, then first try testing with that...
Make sure you have Background App refresh and notifications available on your device. To see how to do it, refer to my linked answer.
Are you creating the payload yourself or you're using FireBase? If you're using Firebase then some of the keys change...and you must adjust accordingly.
make sure you've set some object as the delegate of UNUserNotificationCenterDelegate e.g.:
UNUserNotificationCenter.current().delegate = delegateObject
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: #escaping (UNNotificationPresentationOptions) -> Void) {
let content = notification.request.content
// Process notification content
completionHandler([.alert, .sound, .badge]) // Display notification as regular alert and play sound
}
Code copied from here.
If you don't do such then you won't be showing any notification when the app is in the foreground. This should resolve the issue of when app is in foreground and you've received a normal remote notification.
Push notification working properly in app from Java APNS,
But one notification in payload with
{
aps = {
"content-available" = 1;
};
key = value;
key = value;
key = value;
}
This is not working in any state of app in iPhone 7, working in other devices, also check with battery mode.
From sender we see log and check response it's sending, but not received in device.
What was the reason for particular device or state ??
i have searched over web but see almost same content which i m using,
i got data in func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any], fetchCompletionHandler completionHandler: #escaping (UIBackgroundFetchResult) -> Void)
this function when device receive any kind of push notification.
I'm trying to update the badge value remotely via a push notification.
Everything works fine but when the app is open I get an empty alert (containing my app name and a close button).
I read about silent notifications in apple's documentation but it seems that even with specifying content-available : 1 in the notification payload, the payload must not contain badge for the notification to be silent.
Is updating the badge without receiving an alert possible ?
If you are using a silent push notification, then you cannot include the badge key in the aps dictionary, so you can't update the badge directly with a silent push.
You can include your own keys and values in the aps dictionary and this dictionary is available in the didReceiveRemoteNotification:fetchCompletionHandler UIApplicationDelegate function.
In this function you can extract your own "badge" key from the aps dictionary and use this to update the badge number directly using the UIApplication property [applicationIconBadgeNumber][1]
UIApplication.shared.applicationIconBadgeNumber = someValue
Something like:
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: #escaping (UIBackgroundFetchResult) -> Void) {
if let badgeNumberStr = userInfo["myBadge"] as? String {
if let badgeNumber = Int(badgeNumberStr) {
application.applicationIconBadgeNumber = badgeNumber
}
}
}
I've got push notifications going to the application I'm working on, but I can't seem to manage them in the application. If I can't manage the notifications in the application, how else can I reduce the incrementing value of the badge icon for the application app-icon?
You can change badge count in push data, also if you need manage received push notification data, use this function:
func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject], fetchCompletionHandler completionHandler: (UIBackgroundFetchResult) -> Void)
It's a snap to change the badge count from anywhere in the app:
UIApplication.sharedApplication().applicationIconBadgeNumber = 4