title: Cannot navigate to different screen using FCM onMessage
body: <p>I am trying to navigate to a different screen using <a href="https://pub.dev/packages/get" rel="nofollow noreferrer">Get</a> when a user taps on the notification triggered from the onMessage function while the app is on foreground. So far I have not been able to do that.</p>
  <p>Here's what I have done so far:</p>
  <pre><code>  void initState(){ 
      super.initState();
      var initializationSettingsAndroid  = AndroidInitializationSettings('@drawable/splash');
      var initializationSettings = InitializationSettings(android:initializationSettingsAndroid);
      flutterLocalNotificationsPlugin.initialize(initializationSettings);
      
      FirebaseMessaging.onMessage.listen((RemoteMessage message) {
        RemoteNotification notification = message.notification;
        AndroidNotification android = message.notification?.android;
        if (notification != null &amp;&amp; android != null) {
          flutterLocalNotificationsPlugin.show(
              notification.hashCode,
              notification.title,
              notification.body,
              NotificationDetails(
                android: AndroidNotificationDetails(
                  channel.id,
                  channel.name,
                  channel.description,
                  icon: '@drawable/splash',
                  playSound: true
                ),
              ));
              Get.to(OrdersScreen());
        }
      });
    }
  </code></pre>
  <p>I get the notification but when I tap, nothing happens. I also get the following exception in the logs.</p>
  <blockquote>
  <p>E/flutter (17567): [ERROR:flutter/lib/ui/ui_dart_state.cc(199)]
  Unhandled Exception: You are trying to use contextless navigation
  without E/flutter (17567):       a GetMaterialApp or Get.key.
  E/flutter (17567):       If you are testing your app, you can use:
  E/flutter (17567):       [Get.testMode = true], or if you are running
  your app on E/flutter (17567):       a physical device or emulator,
  you must exchange your [MaterialApp] E/flutter (17567):       for a
  [GetMaterialApp]. E/flutter (17567): E/flutter (17567): #0<br />
  GetNavigation.global package:get/…/src/extension_navigation.dart:1052
  E/flutter (17567): #1      GetNavigation.to
  package:get/…/src/extension_navigation.dart:511 E/flutter (17567): #2
  _MyAppState.initState. package:flutter_complete_guide/main.dart:146 E/flutter (17567): #3<br />
  _rootRunUnary (dart:async/zone.dart:1362:47) E/flutter (17567): #4      _CustomZone.runUnary (dart:async/zone.dart:1265:19) E/flutter (17567): #5      _CustomZone.runUnaryGuarded (dart:async/zone.dart:1170:7) E/flutter (17567): #6      _BufferingStreamSubscription._sendData
  (dart:async/stream_impl.dart:341:11) E/flutter (17567): #7<br />
  _DelayedData.perform (dart:async/stream_impl.dart:591:14) E/flutter (17567): #8      _StreamImplEvents.handleNext
  (dart:async/stream_impl.dart:706:11) E/flutter (17567): #9<br />
  _PendingEvents.schedule. (dart:async/stream_impl.dart:663:7) E/flutter (17567): #10<br />
  _rootRun (dart:async/zone.dart:1346:47) E/flutter (17567): #11     _CustomZone.run (dart:async/zone.dart:1258:19) E/flutter (17567): #12     _CustomZone.runGuarded (dart:async/zone.dart:1162:7) E/flutter (17567): #13     _CustomZone.bindCallbackGuarded.
  (dart:async/zone.dart:1202:23) E/flutter (17567): #14     _rootRun
  (dart:async/zone.dart:1354:13) E/flutter (17567): #15<br />
  _CustomZone.run (dart:async/zone.dart:1258:19) E/flutter (17567): #16     _CustomZone.runGuarded (dart:async/zone.dart:1162:7) E/flutter (17567): #17     _CustomZone.bindCallbackGuarded.
  (dart:async/zone.dart:1202:23) E/flutter (17567): #18<br />
  _microtaskLoop (dart:async/schedule_microtask.dart:40:21) E/flutter (17567): #19     _startMicrotaskLoop
  (dart:async/schedule_microtask.dart:49:5) E/flutter (17567):
  D/ViewRootImpl@874c66fMainActivity: stopped(false) old=false</p>
  </blockquote>