This recipe covers handling the OnRestored
system event.
Replace Main()
with the following code:
public class AppMain { static bool _done = false; public static void Main (string[] args){ SystemEvents.OnRestored += HandleSystemEventsOnRestored; while(!_done) { SystemEvents.CheckEvents(); // Loop until application minimized then restored. } } static void HandleSystemEventsOnRestored (object sender, RestoredEventArgs e) { Console.WriteLine ("System restored, ok to shut down"); _done = true; } }
This code starts by wiring an OnRestored
event handler to global class SystemEvents
. We then loop until the _done
bool is set to true. Within our loop we poll SystemEvents.CheckEvents()
to see if any events have occurred. If an OnRestored
event occurs, our event handler will be fired.
Our event handler HandeSystemEventsOnRestored()
simply writes out a message to the console, then sets the _done
bool to true, causing our loop to end, and our program to exit.
Run this example, then minimize the simulator or change applications on your device. When you refocus the application, it will fire the OnRestored
event, causing your program to exit.