JaveedIshaq

Configure login Apple ID
Prerequisites 
Before you can start integrating (or even testing) Sign in with Apple you need a paid membership to the Apple Developer Program. Sign in with Apple is one of the restricted services which is not available for free with just an Apple ID (source).

Setup 
Register an App ID
If you have not one yet, create a new one at https://developer.apple.com/account/resources/identifiers/list/bundleId following these steps:

Click “Register an App ID”
In the wizard select “App IDs”, click “Continue”

JaveedIshaq

// import 'dart:developer' as devtools show log;

import 'package:flutter/foundation.dart';

// call log on string and pass StackTrace if want file Name  --> "here is log message".log();

/// Extension on Object to enable conditional logging in debug mode.
extension Log on Object {
  void log() {
    if (kDebugMode) {

JaveedIshaq

1-Install Google Chrome
2- Install Java JDK using offline Installer
3- Install VSCODE and extension for Flutter and Dart
4- Install Android Studio and install Plugin for Dart and Flutter
5- Set up Global path for Flutter 
type below command in cmd
sudo nano $HOME/.zshrc 
past belwo
export PATH="$PATH:/Users/javeedishaq/flutter/bin"
ctrl+x to close type y to accept

JaveedIshaq

import 'package:flutter/material.dart';

const Color darkBlue = Color.fromARGB(255, 18, 32, 47);

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override

JaveedIshaq

// https://gist.github.com/Esgrima/c0d4bff4b0d3909daf8994410cd659ce
// https://dartpad.dev/c0d4bff4b0d3909daf8994410cd659ce

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:boolean_selector/boolean_selector.dart';

// (TODO: Tip # 1) Consider making frequently used variables/values constants
const _fooConst1 = '';
const _fooConst2 = '';

JaveedIshaq

Step 1: Download the JDK
# wget https://download.oracle.com/otn/java/jdk/8u291-b10/d7fc238d0cbf4b0dac67be84580cfb4b/jdk-8u311-linux-x64.tar.gz
# wget https://download.oracle.com/otn/java/jdk/11.0.15.1+2/d76aabb62f1c47aa8588b9ae5a8a5b46/jdk-11.0.15.1_linux-x64_bin.tar.gz

Step 2: Extract JDK and mpve to Java's default location

sudo tar -xvzf jdk-8u311-linux-x64.tar.gz 
sudo mkdir /usr/lib/jvm
sudo mv jdk-11.0.15.1/ /usr/lib/jvm/

JaveedIshaq

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Elevated Button',
      home: FlutterExample(),

JaveedIshaq

import 'package:flutter/material.dart';

const Color darkBlue = Color.fromARGB(255, 18, 32, 47);

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override

JaveedIshaq

class ContactBook {
  ContactBook._sharedInstance();
  static final ContactBook _shared = ContactBook._sharedInstance();
  factory ContactBook() => _shared;
}

JaveedIshaq

class LoginApi implements LoginApiProtocol {
  const LoginApi._sharedInstance();

  static const LoginApi _shared = LoginApi._sharedInstance();

  factory LoginApi.instance() => _shared;

  @override
  Future<LoginHandle?> login(
      {required String email, required String password}) {