Does device token ever change in Apple Push Notifications

Question

I am developing an iOS app in which i have implemented Push Notification. Everything is working fine. But just wish to ask if device Token for my Apple device will ever cha

Answer 1

device Token for my Apple device will ever change

-- YES. If you restores backup data to a new device or reinstall the operating system, the device token changes. So my suggestion is to update the server with token

do we need internet connectivity for generating device token

-- as far as I know, YES. When you register user, you call method for registration for push notification. This on successful registration call the delegate method -

- (void)application:(UIApplication *)app didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken

indicating you are registered successfully for a push notification or on failure it calls -

- (void)application:(UIApplication*)application didFailToRegisterForRemoteNotificationsWithError:(NSError*)error

indicating failed to register for notification.

You can check it by turning off network and running your application.