Hloo
Reputation: 1
I am getting an error bottom navigation bar Widget in flutter
I am having this error:
══════ Exception caught by widgets library ═══════════════════════════════════ 'package:flutter/src/widgets/framework.dart': Failed assertion: line 6750 pos 12: 'child == _child': is not true.
The relevant error-causing widget was:
════════════════════════════════════════════════════════════════════════════════
════════ Exception caught by widgets library ═══════════════════════════════════ Duplicate GlobalKey detected in widget tree. ════════════════════════════════════════════════════════════════════════════════
and the navigation bar is not working it is not direct me to the pages that I want and it keeps lagging. Can anyone help me I've seen lot of YouTube videos but I didn't see what's the problem.
Navigation bar code:
import 'dart:ffi';
import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:curved_navigation_bar/curved_navigation_bar.dart';
import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
import 'package:google_nav_bar/google_nav_bar.dart';
import 'package:notify_ju/Screens/categories.dart';
import 'package:notify_ju/Screens/myReports.dart';
class BottomNavigationBarWidget extends StatefulWidget {
@override
State<BottomNavigationBarWidget> createState() =>
_BottomNavigationBarWidgetState();
}
class _BottomNavigationBarWidgetState extends State<BottomNavigationBarWidget> {
int currentIndex = 0;
void _nav(int index) {
setState(() {
currentIndex = index;
});
}
final screen = [Categories(), const MyReports()];
@override
Widget build(BuildContext context) {
return GNav(
backgroundColor: const Color.fromARGB(255, 195, 235, 197),
activeColor: Color.fromARGB(255, 136, 135, 135),
color: Colors.white,
gap: 3,
selectedIndex: currentIndex,
onTabChange: _nav,
tabs: [
GButton(
icon: Icons.home,
text: 'Home',
),
GButton(
icon: Icons.notifications,
text: 'My Reports',
),
],
);
}
}
Report page:
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:notify_ju/Controller/ReportsController.dart';
import 'package:notify_ju/Widgets/bottomNavBar.dart';
import 'package:notify_ju/Widgets/drawer.dart';
class MyReports extends StatefulWidget {
const MyReports({Key? key}) : super(key: key);
@override
State<MyReports> createState() => _MyReportsState();
}
final controller = Get.put(ReportsController());
class _MyReportsState extends State<MyReports> {
@override
Widget build(BuildContext context) {
return Scaffold(
drawer: DrawerWidget(),
backgroundColor: const Color(0xFFEFF5EA),
appBar: AppBar(
centerTitle: true,
title: const Text('My Reports'),
),
body: FutureBuilder(
future: controller.viewCurrentReports(),
builder: (context, snapshot) {
if (snapshot.connectionState == ConnectionState.waiting) {
return const Center(child: CircularProgressIndicator());
} else {
if (snapshot.hasError) {
return const Center(child: Text("Error fetching reports"));
} else {
if (snapshot.data == null || snapshot.data!.isEmpty) {
return const Center(
child: Text("You don't have any reports yet"));
} else {
return ListView.builder(
itemCount: snapshot.data!.length,
itemBuilder: (context, index) {
final items = snapshot.data!;
return Dismissible(
key: UniqueKey(),
background: Container(
color: Colors.red,
child: const Align(
alignment: Alignment.centerLeft,
child: Padding(
padding: EdgeInsets.only(left: 20.0),
child: Icon(
Icons.delete,
color: Colors.white,
),
),
),
),
secondaryBackground: Container(
color: Colors.blue,
child: const Align(
alignment: Alignment.centerRight,
child: Padding(
padding: EdgeInsets.only(right: 20.0),
child: Icon(
Icons.edit,
color: Colors.white,
),
),
),
),
onDismissed: (direction) {
if (direction == DismissDirection.startToEnd) {
controller.deleteReport(items[index]["report_id"]);
} else if (direction == DismissDirection.endToStart) {
//edit item stuff
}
},
child: Card(
color: Color.fromARGB(184, 211, 207, 207),
child: ListTile(
title: Text(items[index]['report_type']),
subtitle: Text(items[index]['incident_description']),
onTap: () {
// Handle tapping on the card
},
),
),
);
},
);
}
}
}
},
),
bottomNavigationBar: BottomNavigationBarWidget(),
);
}
}
Categories page:
// ignore_for_file: sized_box_for_whitespace
import 'package:flutter/material.dart';
import 'package:google_nav_bar/google_nav_bar.dart';
import 'package:notify_ju/Screens/AddReport.dart';
import 'package:notify_ju/Widgets/bottomNavBar.dart';
import 'package:notify_ju/Widgets/drawer.dart';
class Categories extends StatelessWidget {
final List<String> image = [
'images/fight123.jpg',
'images/fiire.webp',
'images/carss.png',
'images/doggg.png',
'images/injuryy.png',
'images/infraa.png',
];
final List<String> names = [
'Fight',
'Fire',
'Car Accident',
'Stray Animals',
'Injury',
'Infrastructure Damage',
];
Categories({super.key});
@override
Widget build(BuildContext context) {
return Scaffold(
drawer: DrawerWidget(),
backgroundColor: const Color(0xFFEFF5EA),
appBar: AppBar(
centerTitle: true,
title: const Text('Choose a Category',
style: TextStyle(
color: Color.fromARGB(255, 0, 0, 0),
fontStyle: FontStyle.italic)),
backgroundColor: const Color.fromARGB(255, 195, 235, 197),
),
body: SingleChildScrollView(
child: Column(
children: [
GridView.count(
crossAxisCount: 2,
crossAxisSpacing: 5.0,
mainAxisSpacing: 5.0,
clipBehavior: Clip.antiAlias,
shrinkWrap: true,
physics: const NeverScrollableScrollPhysics(),
children: List.generate(
image.length,
(index) => Container(
padding: const EdgeInsets.all(3),
child: ElevatedButton(
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => addReport(
reportType: names[index],
),
),
);
},
style: ElevatedButton.styleFrom(
backgroundColor: Colors.white,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(50),
),
),
child: Column(
children: [
const SizedBox(height: 15),
Container(
height: 110,
child: Image.asset(image[index],
fit: BoxFit.fitHeight,
scale: 1.0,
alignment: Alignment.center),
),
const SizedBox(height: 15),
Text(names[index],
style: const TextStyle(
fontSize: 16, color: Colors.black),
textAlign: TextAlign.center),
],
),
),
),
),
),
],
),
),
bottomNavigationBar: BottomNavigationBarWidget(),
);
}
}
Upvotes: 0
Views: 53