Sumit-Ghosh

import 'dart:async';

import 'package:connectivity_plus/connectivity_plus.dart';
import 'package:flutter/material.dart';

class InheritedNetworkHandler extends InheritedWidget {
  final bool isNetworkAvailable;

  const InheritedNetworkHandler(
      {required this.isNetworkAvailable, required Widget child})

Sumit-Ghosh

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    // Option 1
    return MaterialApp(
        title: 'Flutter Demo',
        theme: ThemeData(
          primarySwatch: Colors.blue,

Sumit-Ghosh

  Future<void> _getDeviceModel() async {
    String _model;
    try {

      // 1
      final String result = await platformChannel.invokeMethod('getDeviceModel');

      // 2
      _model = result;

Sumit-Ghosh

Future<void> _getDeviceModel() async {
  String _model;
  try {

    // 1
    final String result = await platformChannel.invokeMethod('getDeviceModel');

    // 2
    _model = result;
    

Sumit-Ghosh

Future<void> _getDeviceModel() async {
  String _model;
  try {

    // 1
    _model = await platformChannel.invokeMethod('getDeviceModel');

  } catch (e) {

    // 2

Sumit-Ghosh

import UIKit
import Flutter

@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {
    override func application(
        _ application: UIApplication,
        didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
    ) -> Bool {
        

Sumit-Ghosh

import UIKit
import Flutter

@UIApplicationMain
@objc class AppDelegate: FlutterAppDelegate {
    override func application(
        _ application: UIApplication,
        didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
    ) -> Bool {
        

Sumit-Ghosh

import 'package:bloc/bloc.dart';

part 'login_event.dart';
part 'login_state.dart';

/*
  We extend the the Bloc class and also mention the
  type for event and state.
*/
class LoginBloc extends Bloc<LoginEvent, LoginState> {

Sumit-Ghosh

part of 'login_bloc.dart';

// It's a simple abstract class
// which can be extended for other event's
abstract class LoginEvent {
  const LoginEvent();
}

/*
Will be used later

Sumit-Ghosh

part of 'login_bloc.dart';

// This is also an abstract class
// which can be again extended by other classes

/*
* The reason for having a one base class is because,
* We can refer it for all other child class,
* throughout other files where it is used.
* */