didUpdatePushCredentials not get called

Question

I want to implement VoIP notifications in my iOS application, But the didUpdatePushCredentials method never got called, I can\'t get the device token.

Answer 1

Use below code and Make sure about following things.

**`**// Register for VoIP notifications**`**

- (void) voipRegistration {
    dispatch_queue_t mainQueue = dispatch_get_main_queue();
    // Create a push registry object
    _voipRegistry = [[PKPushRegistry alloc] initWithQueue: mainQueue];
    // Set the registry's delegate to self
    [_voipRegistry setDelegate:(id _Nullable)self];
    // Set the push type to VoIP
    _voipRegistry.desiredPushTypes = [NSSet setWithObject:PKPushTypeVoIP];
}

Call Below method in didFinishLaunchingWithOptions

Other deleget method as follow

- (void)pushRegistry:(PKPushRegistry *)registry didUpdatePushCredentials: (PKPushCredentials *)credentials forType:(NSString *)type {
    // Register VoIP push token (a property of PKPushCredentials) with server

    if([credentials.token length] == 0) {
        NSLog(@"voip token NULL");
        return;
    }
    NSLog(@"%@",credentials.token);
}

//Make sure about this in project capabilities

1)Background mode is ON

2)VOIP

3)Background Fetch

4)remotenotification

5) Dont forgot to import delegate

inside the Background MODE