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1. handleGoogleSignin.dart handleGoogleSignin.dart

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   import 'package:google_sign_in/google_sign_in.dart';

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   import 'package:firebase_auth/firebase_auth.dart';

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   class SignInOptions{

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     GoogleSignIn googleSignIn = GoogleSignIn(

2. connectionStream connectionStream

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   Future<bool> checkConnection() async{

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     var connectivityResult = await (Connectivity().checkConnectivity());

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     if (connectivityResult == ConnectivityResult.mobile) {

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       return true;

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     } else if (connectivityResult == ConnectivityResult.wifi) {

3. Gradient from Single Hex value Gradient from Single Hex value

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   LinearGradient(

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     begin: Alignment.topLeft,

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     end: Alignment.bottomRight,

4. All Countries in the world JSON file All Countries in the world JSON file

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   [

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       {

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           "id": 3901,

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           "name": "Badakhshan",

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           "country_id": 1,

5. string_extension.dart string_extension.dart

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   extension CapExtension on String? {

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     String get inCaps => isValid ? (this!.isNotEmpty ? '${this![0].toUpperCase()}${this!.substring(1)}' : '') : '';

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     String get capitalizeFirstOfEach => isValid ? (this!.replaceAll(RegExp(' +'), ' ').split(" ").map((str) => str.inCaps).join(" ")) : '';

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     bool get isValid => this != null && this!.isNotEmpty;

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     bool get isNotValid => this == null || this!.isEmpty;

6. launchUrlWebsiteFunction launchUrlWebsiteFunction

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   Future<void> _launchWebsite(String url) async {

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       if (!(url.startsWith('http'))) {

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         if (!(url.startsWith('https://'))) {

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           url = 'https://' + url;

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         }