IOS notification when Application is closed

Question

i have a ios application where to which i send remote notification when sending notification from server i am setting content -available = 1 and sound = "" When on IOS device i am using

applicaiton(didReceiveRemoteNotification:fetchCompletionHandler:)

I seeing that app reaches this method when in background but when app is closed this method is not getting called But is not getting called when application is closed

applicaiton(didReceiveRemoteNotification:fetchCompletionHandler:)

My handler in this method is

        let userInfoDic = userInfo as NSDictionary as? [String: Any]
        let cato = userInfoDic?["cato"] as? String
if cato == "message" {
            let state: UIApplicationState = UIApplication.shared.applicationState
            if state == .active{
                print("Application is Active Socket IO will Handle This")
            }else{
                let apnMessage = userInfoDic?["apnMessage"] as? [String: Any]
                if (apnMessage == nil){
                    print("Error Fetching Message")
                }else{
                let count = UserDefaults.standard.integer(forKey:"TotalUnredMessage")

                    DispatchQueue.main.async {
                        UIApplication.shared.applicationIconBadgeNumber = count + 1
                    }
                    UserDefaults.standard.set(count, forKey: "TotalUnredMessage")
          }
}

So what should i change for this methods to run even when applicaiton is closed

Thanks

score 11 · Accepted Answer · edited Jul 14 '20 at 08:13

11

didReceiveRemoteNotification method will not call when the application is closed.

But you can check launchOptions to know weather the application has been launched from notification or not in didFinishLaunchingWithOptions method in appdelegate and do your task accordingly.

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey : Any]? = nil) -> Bool {

     if launchOptions?[UIApplicationLaunchOptionsKey.remoteNotification] != nil {
    // Do your task here
    }

}

edited Jul 14 '20 at 08:13

Walty Yeung

3,396
32
33

answered Jul 12 '17 at 12:36

Prakash Shaiva

1,047
8
12

What will happen if the user directly taps the app icon and not come through notification or will i be able to see all the notification received when application was closed Thanks for the answer – Santhosh S Kashyap Jul 12 '17 at 12:43
2

if the user does not open the app by tapping the notification, there is no way to get the notification information. In that case you have to check with your server for unread notifications. – Prakash Shaiva Jul 12 '17 at 12:47
My whole requirement is to increment the badge count I tried sending +1 in badge i does not work – Santhosh S Kashyap Jul 12 '17 at 13:05
Push notifications are handled by iOS and in your app you can't change the application badge on receiving a push notification when the application is closed. But you can calculate the badge number and send the badge number in the payload of the push notification from your server. – Prakash Shaiva Jul 12 '17 at 13:20
can we get userInfo here?? – Rashid KC Sep 26 '18 at 09:18

score 2 · Answer 2 · answered Jun 02 '20 at 14:52

To complete Prakash Shaiva by showing how to retrieve the notification userIn didFinishWithLaunchOptions

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey : Any]? = nil) -> Bool {

     if let launchOptions = launchOptions,
            let userInfo =  launchOptions[.remoteNotification] as? [AnyHashable: Any] {
            //some code here and post when needed like below
            NotificationCenter.default.post(name: NSNotification.Name("your notification name"),  object: nil)
        }
}

score 1 · Answer 3 · answered Jul 12 '17 at 12:39

1

You should specify in configuration, that your app needs be waked on remote notification. Check this comment: https://stackoverflow.com/a/29231395/2732896

answered Jul 12 '17 at 12:39

DoN1cK

595
7
22

IOS notification when Application is closed

3 Answers3

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