import 'package:camera/camera.dart';
import 'package:flutter/material.dart';
import './settings.dart';
import './Chats.dart';
import './camera.dart';
import 'dart:async';

List<CameraDescription> cameras;

Future<Null> main() async {
  WidgetsFlutterBinding.ensureInitialized();
  cameras = await availableCameras();
  runApp(MyApp());
}

class MyApp extends StatefulWidget {
  final List<CameraDescription> cameras;
  MyApp({this.cameras});

  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State <MyApp>{
   int pagePressed=1;

  @override
  Widget build(BuildContext context) {
final page =[ CameraScreen(widget.cameras) ,Chats(), Settings()
 ];
     return MaterialApp(
       debugShowCheckedModeBanner: false ,
   home: Scaffold(

       body: page[pagePressed],

        bottomNavigationBar: BottomNavigationBar(
          currentIndex: pagePressed ,
         onTap: (int index){
           setState(() {
              pagePressed=index;
            });
          },
         iconSize: 23,
         selectedFontSize: 17 ,
         unselectedFontSize: 13,
          items: [
            BottomNavigationBarItem(
              icon: Icon(Icons.camera_alt),
              title: Text('Camera'),
              ),
              BottomNavigationBarItem(
              icon: Icon(Icons.chat_bubble),
              title: Text('Chats')),
              BottomNavigationBarItem(
              icon: Icon(Icons.settings),
              title: Text('Settings')),

          ],

   ),) );
    }
}