router.vue

<script>
  import { StackNavigator, DrawerNavigator } from "vue-native-router";
  const AppNavigation = StackNavigator(
    {
      Login: { screen: LoginScreen },
      Drawer: { screen: Drawer }
    },
    {
      initialRouteName: "Login",
      headerMode: "none"
    }
  );
  export default {
    components: { AppNavigation }
  };
 </script>