Swift 3 - Turn off badge, alert, sound - ios

Question

I've read a lot of answers here and I can't find answers of this questions
How to stop badge, alert and sound from notifications when the application is not running ?
How to stop badge, alert and sound from notifications when the application is in Background?
in this function:
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: #escaping (UNNotificationPresentationOptions) -> Void)
I've put completionHandler([]) without [.badge, .alert, .sound] and I still receive notifications in background when the app is runned.
Also I have function in my code that sends notification when somebody is typing to you and you see that he is typing to you when you are in-app, but when the application is not runned you are receiving notification with badge alert sound? How to prevent that?
PHP Code:
$body['aps'] = array(
'content-available' => 0,
'typingNewMessage' => 'true',
'senderId' => $your_id
);

Answer 1

Two things first: Are you using websocket/socket.io for the chat in your app? And as for notifications, have you set up remote notifications in background modes?
Background modes.
Read up on the docs for push notifications, it sounds like you're adding steps here, or missing some. Basically as kathayatnk mentioned, his method should give you what you want. So if you haven't activated remote background notifications:
To configure your app to process silent notifications in the
background
In the Project Navigator, select your project.
In the editor, select your iOS app target.
Select the Capabilities tab.
Enable the Background Modes capability.
Enable the Remote notifications background mode.
If this is done, you should receieve them in the background..
Also, you are using the wrong method for recieving background notifications in the background.. As stated in the same link above:
In iOS, the system delivers silent notifications by calling the
application:didReceiveRemoteNotification:fetchCompletionHandler:
method of your app delegate. Use that method to initiate any download
operations needed to fetch new data.
how i usually use it :
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: #escaping (UIBackgroundFetchResult) -> Void) {
guard let aps = userInfo["aps"] as? [String:Any] else {
//handle something here..
return
}
//handle the content here...
}
You can also perform background tasks from inactive states here by playing with the return value of completionHandler. I suggest you read up on it too.
For your chat issue...
Clarify how you're performing this...
If you're using a websocket/socket.io architecture:
I would strongly recommend not using notifications to notify a user of anything with APNS when using a websocket. Websockets are very efficient and much quicker. Handling both can greatly complicate things. Stick to the socket approach, and use a method server side that checks if a user is still within the app. Something like a ping-pong method like here. Have that method switch to APNS delivery when the socket client ping method shows that the user has left the app or has closed it. This means, if the user is still in the app, but not in the conversation, stay with the ping approach but program the UI response differently (take FB Messenger or Snapchat's notification tabs for example).
If you are not using websockets/socket.io:
...Switch to websockets technologies or packages (depending on your server platform type) or socket.io or use firebase realtime chat services.
Let me know your setup like i asked earlier, but if youre doing all of this already and still getting the issues, then post your code.
Personnaly, i've used RawWenderlicht for APNS guides for over a year, good stuff if you ask me.

Answer 2

To silent push notification the payload should contain content-available key as:
{
"aps": {
"content-available": 1
}
}
Also, you need to enable Remote Notifications in Background Modes under Capabilities setting of your Xcode project.
Now your app will wake up in the background when it receives one of these push notifications.
didReceiveRemoteNotification will be called in AppDelegate whenever the push notification is received.
func application(
_ application: UIApplication,
didReceiveRemoteNotification userInfo: [AnyHashable : Any],
fetchCompletionHandler completionHandler: #escaping (UIBackgroundFetchResult) -> Void)
{
let aps = userInfo["aps"] as! [String: AnyObject]
if aps["content-available"] as? Int == 1
{
//Your code
}
}
For more on how to handle push notifications in foreground/background refer to: https://www.raywenderlich.com/156966/push-notifications-tutorial-getting-started

Answer 3

you can add silent push notifications (set content-available key appropriately) when sending pushes, like below.
//when you want the badge and sound
aps {
content-available: 1
}
//When you want silent notifications
aps {
content-available: 0
}
This will call the appropriate delegate method but wont display badge and sound