Transfer application from background to foreground when receiving an incoming call via BroadcastReceiver

Question

I am developing a cross-platform application using Xamarin for SIP calls. I have incoming and outgoing calls.

Although I have a problem with receiving a call when the application is running in the background.

I tried to send a request to the front when a call was received. The code I used is as follows:

In my main business

private void registerReceiver() { IncomingCallReceiver callReceiver = new IncomingCallReceiver(); IntentFilter sipIntentFilter = new IntentFilter(); sipIntentFilter.AddAction("com.NelsonApp.INCOMING_CALL"); this.RegisterReceiver(callReceiver, sipIntentFilter); } 

and in my BroadcastReceiver

 public override void OnReceive(Context context, Intent intent) { DialerCallListener listener = new DialerCallListener(); SIPRegistration.call = SIPRegistration.sipManager.TakeAudioCall(intent, listener); string str = SIPRegistration.call.PeerProfile.UriString; char [] strArray = {':','@'}; var value = str.Split(strArray)[1]; Intent newIntent = new Intent(context, typeof(MainActivity)); newIntent.AddFlags(ActivityFlags.FromBackground); newIntent.AddCategory(Intent.CategoryLauncher); context.StartActivity(newIntent); PlaySound myActivity = new PlaySound(); myActivity.PlayRingtone(context); MainActivity.isIncomingCall = true; MessagingCenter.Send(string.Empty, "IncomingCall", value); } 

I tried with various NewTask ActivityFlags such as NewTask , SingleTop , ReorderToFront , ReceiverForeground , FromBackground , BroughtToFront . However, having noted, bring my application to the forefront.

What else can I do from here?

I tried to follow this link . Although this did not help.

Answer 1

 var intent = new Intent(context, typeof (MainActivity)); intent.AddFlags(ActivityFlags.NewTask); context.StartActivity(intent); 

Run the application just fine.

Are you sure your BroadcastReceiver is being called?