Hello, I need to implement in my Xamarin.Android app local notifications. On my server, I am using SignalR as a WebSocket. The server notifies all clients and a notification on all mobile devices is displayed. I can't do that using FCM, because it's a project for a corporation which has a closed network. There is no access to the Internet. Is it possible to have in Xamarin.Android a background service which is running even if the app is closed. Because I wrote a service which is working only when the app is active. If I will terminate my app the service is killed. How can I solve this problem?