makss68
commented
4 years ago You need to attach an existing CircularBottomNavigationController to the controller of the CircularBottomNavigation
Closed raegartargarian closed 2 years ago
makss68
commented
4 years ago You need to attach an existing CircularBottomNavigationController to the controller of the CircularBottomNavigation
I did not do much and I was trying to use this library as I got this error:
════════ Exception caught by foundation library ════════════════════════════════ The following NoSuchMethodError was thrown while dispatching notifications for CircularBottomNavigationController: The getter 'value' was called on null. Receiver: null Tried calling: value
here is my page:
import 'package:flutter/material.dart'; import 'package:flutter/services.dart'; import 'package:visitor_app/screens/add_user_page/screen/add_user_page.dart'; import 'package:visitor_app/screens/home_page/screen/home_page.dart'; import 'package:visitor_app/screens/map_page/screen/map_page.dart'; import 'package:visitor_app/screens/my_users_page/screen/my_users_page.dart'; import 'package:visitor_app/screens/profile_page/screen/profile_page.dart'; import 'package:visitor_app/utils/screen_utils/connection_alert_widget.dart'; import 'package:visitor_app/utils/screen_utils/connection_service.dart'; import 'package:circular_bottom_navigation/circular_bottom_navigation.dart'; import 'package:circular_bottom_navigation/tab_item.dart';
class MainPage extends StatefulWidget { final int tab; MainPage({this.tab}); @override _MainPageState createState() => _MainPageState(); }
class _MainPageState extends State {
AddUserPage addUserPage;
MapPage mapPage;
MyUsersPage myUsersPage;
ProfilePage profilePage;
HomePage homePage;
List pages;
Widget currentPage;
@override void initState() { final connectionStatus = ConnectionStatusSingleton.getInstance(); addUserPage = new AddUserPage(); mapPage = new MapPage(); myUsersPage = new MyUsersPage(); profilePage = new ProfilePage(); homePage = new HomePage(); pages = [mapPage, addUserPage, homePage, myUsersPage, profilePage]; currentPage = widget.tab == null ? homePage : pages[widget.tab]; connectionStatus.initialize(); super.initState(); }
@override Widget build(BuildContext context) { return WillPopScope( onWillPop: () {}, child: Scaffold( body: Stack( children:[currentPage, ConnectionAlertWidget()],
),
bottomNavigationBar: CircularBottomNavigation(
List.of([
TabItem(Icons.home, "Home", Colors.black,
labelStyle: TextStyle(fontFamily: "Ir")),
TabItem(Icons.search, "Search", Colors.black,
labelStyle: TextStyle(fontFamily: "Ir")),
TabItem(Icons.shopping_cart, "Basket", Colors.black,
labelStyle: TextStyle(fontFamily: "Ir")),
TabItem(Icons.search, "Search", Colors.black,
labelStyle: TextStyle(fontFamily: "Ir")),
TabItem(Icons.search, "Search", Colors.black,
labelStyle: TextStyle(fontFamily: "Ir")),
]),
selectedCallback: (position) {
print(position);
// setState(() {
// currentPage = pages[position];
// });
},
)));
}
}