My code in homepage.dart
// ignore_for_file: sized_box_for_whitespace, prefer_const_constructors, unused_element, avoid_unnecessary_containersimport 'package:cached_network_image/cached_network_image.dart';import 'package:flutter/material.dart';import 'package:friendlycourse/UI/modals/channel_info.dart';import 'package:friendlycourse/UI/net/services.dart';import 'package:friendlycourse/UI/screens/drawer.dart';class MyHomePage extends StatefulWidget { const MyHomePage({Key? key, required this.title}) : super(key: key); final String title; @override State<MyHomePage> createState() => _MyHomePageState();}class _MyHomePageState extends State<MyHomePage> { // get searchBar => null; ChannelInfo? _channelInfo; Item? _item; // late bool _loading; @override void initState() { super.initState(); // _loading = true; _getChannelInfo(); } _getChannelInfo() async { _channelInfo = await Services.getChannelInfo(); _item = _channelInfo!.items[0]; // setState(() { // _loading = false; // }); } @override Widget build(BuildContext context) { return Scaffold( drawer: MyDrawer(), appBar: AppBar( title: Text(widget.title), // actions: <Widget>[ // IconButton(icon: Icon(Icons.search),onPressed: (){},) // ], ), body: Container( child: Column( children: [ _buildInfoView(), ], ), ), ); } _buildInfoView() { return Container( child: Card( child: Row( children: [ CircleAvatar( backgroundImage: CachedNetworkImageProvider( _item!.snippet.thumbnails.medium.url, ), ), SizedBox( width: 20, ), Text( _item!.snippet.title, style: TextStyle( fontSize: 20, fontWeight: FontWeight.w400, ), ) ], ), )); }} My code in services.dart import 'dart:io'; import 'package:friendlycourse/UI/modals/channel_info.dart'; import 'package:friendlycourse/UI/net/constants.dart'; import 'package:http/http.dart' as http; import 'package:http/http.dart'; class Services { static const channelId = 'UCBwmMxybNva6P_5VmxjzwqA'; static const _baseUrl = 'youtube.googleapis.com'; static Future<ChannelInfo> getChannelInfo() async { Map<String, String> parameters = {'part': 'snippet','id': channelId,'key': Constant.apikey, }; Map<String, String> headers = { HttpHeaders.contentTypeHeader: 'application/json' }; Uri uri = Uri.https(_baseUrl, 'youtube/v3/search', parameters); Response response = await http.get(uri, headers: headers); print(response.body); ChannelInfo channelInfo = channelInfoFromJson(response.body); return channelInfo;**- emphasized text
** I am trying to make video player flutter app using youtube api v3 and there is no error in the code but after running it my device gives me error: "null check operator used a null value" i don't know how to solve the issue please help me. I am new to flutter.}}