title: Show a Widget when an alarm fires in flutter
body: <p>Is it possible to show a widget when an alarm fires in flutter? My use case is, I set an alarm every hour to check for some calendar events and would like to show a widget which would describe the event in a widget.</p>
  
  <p>Code:
  I set Alarm in main() like this</p>
  
  <pre><code>await AndroidAlarmManager.periodic(const Duration(minutes: 1), 1, performNotificationService);
  </code></pre>
  
  <p>and in performNotificationService I would like to show a widget even if the application is in background/killed. I tried to rerun the app with:</p>
  
  <pre><code>void performNotificationService() {
      runApp(new ShowNewNotification());
  }
  </code></pre>
  
  <p>where ShowNewNotification is one more stateless widget in main.dart.</p>
  
  <p>Thanks,
  Adarsha HD</p>