0

I have a Xamarin.Forms app. In it, I implemented video chat functionality (that supports iOS and Android) using IceLink. The video chat works when both the caller and the recipient have their apps open. Now I wonder how I can make a call to a device which has the app not open.

halfer
  • 19,824
  • 17
  • 99
  • 186
David Shochet
  • 5,035
  • 11
  • 57
  • 105
  • 2
    You can send notification by Firebase Cloud Messaging when device do not open, click the notification to open your application, show the video chat page. – Leon Nov 12 '20 at 05:33
  • 1
    @LeonLu-MSFT Thank you for your answer. Actually, not sure this will do. We would need the app to behave like e.g. skype or whatsApp etc. So that I could buzz a peer while his app is off (or running always at the background), informing him to accept the call. – David Shochet Nov 12 '20 at 15:42
  • 2
    If you use a high priority FCM for an app, it will allow that app to run services in the background for a short period of time. This would be a good alternative to having a background service that polls an app in the background.https://learn.microsoft.com/en-us/xamarin/android/app-fundamentals/services/#background-execution-limits-in-android-80 – Leon Nov 13 '20 at 05:36
  • @LeonLu-MSFT Would it work for iOS also? Couldn't you please refer me to some example implementation? Thanks. – David Shochet Nov 13 '20 at 13:42
  • For iOS achievement, you can refer to this thread :https://stackoverflow.com/questions/59984019/how-implement-push-notifications-firebase-xamarin-ios-c-sharp – Leon Nov 16 '20 at 07:38
  • @LeonLu-MSFT Thank you! If you make it your answer, I will mark it. – David Shochet Nov 30 '20 at 21:55
  • I moved comment to answer. Thanks for your update. – Leon Dec 01 '20 at 01:57

1 Answers1

2

For Android

You can send notification by Firebase Cloud Messaging when device do not open, click the notification to open your application, show the video chat page.

If you use a high priority FCM for an app, it will allow that app to run services in the background for a short period of time. This would be a good alternative to having a background service that polls an app in the background:https://learn.microsoft.com/en-us/xamarin/android/app-fundamentals/services/#background-execution-limits-in-android-80

For iOS

You can refer to Jack's reply.

https://stackoverflow.com/a/60001529/10627299

Leon
  • 8,404
  • 2
  • 9
  • 52