Merge pull request #921 from ozzfelipe/master

fix: Prevent RouterOutlet to get priority.

flutter_modular/lib/flutter_modular.dart

@@ -2,6 +2,7 @@ library flutter_modular;
 
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter_modular/flutter_modular.dart';
 import 'package:flutter_modular/src/flutter_modular_module.dart';
 import 'package:modular_core/modular_core.dart';
 
@@ -114,11 +115,22 @@ class RouterOutletState extends State<RouterOutlet> {
       _navigatorKey,
       currentObservers,
     );
+
+    /// Prevent RouterOutlent to take back button priority
+    /// when the new named route, is not a children
+    if (_newRouteIsNotChildren(modal.route)) {
+      _backButtonDispatcher = null;
+      return;
+    }
     final router = Router.of(context);
     _backButtonDispatcher = router.backButtonDispatcher //
         ?.createChildBackButtonDispatcher();
   }
 
+  bool _newRouteIsNotChildren(ParallelRoute route) {
+    return !route.children.any((e) => Modular.to.path.contains(e.name));
+  }
+
   @override
   void dispose() {
     super.dispose();