CODEWITHSUNDEEP
iosmauiurbanairship.com
subhamoy-burman
subhamoy-burman

Reputation: 19

.NET MAUI iOS app crash with Urban Airship - UAirship.Push.UserPushNotificationsEnabled flag

I’m working on a .NET MAUI application for iOS where I’ve integrated Urban Airship for push notifications. According to the Urban Airship documentation, the TakeOff method should be configured in the FinishedLaunching method. Along with TakeOff, we also have UAirship.Push.UserPushNotificationsEnabled = true; which triggers the OS to ask for push notification permissions.

In our app, we have a different flow where we trigger the OS push notifications permission at a later stage. So initially, we don’t want UAirship.Push.UserPushNotificationsEnabled = true;. However, unless we set this, we won’t receive push notifications from Urban Airship.

To work around this, I initiated TakeOff during FinishedLaunching and set UAirship.Push.UserPushNotificationsEnabled = true; in didRegisterForRemoteNotificationsWithDeviceToken. But this is causing the application to crash. There’s no stack trace generated, but while debugging, I found that the app crashes at the line where UAirship.Push.UserPushNotificationsEnabled = true;.

Interestingly, if I place UAirship.Push.UserPushNotificationsEnabled = true; immediately after TakeOff(), the issue doesn’t occur. But our use case doesn’t allow for this.

Following is the code scenario for Crash.

public override bool FinishedLaunching(UIApplication application, NSDictionary launchOptions)
{
  //TakeOff is being performed
}

public void RegisteredForRemoteNotifications(UIApplication application, NSData deviceToken)
{
......
UAirship.Push.UserPushNotificationsEnabled = true;
.........
}

I have tried putting

UAirship.Push.UserPushNotificationsEnabled = true;

In different places, but unless it is placed immediately after TakeOff application is always crashing whenever it is coming into

UserPushNotificationsEnabled

line.

Upvotes: 0

Views: 98

Answers (1)

KING
KING

Reputation: 980

I resolved this issue by placing this call in shared code. As well as using

 Airship.Instance.UserNotificationsEnabled = true;

instead of

UAirship.Push.UserPushNotificationsEnabled = true;

hope this helps.

Upvotes: 0

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