VB10

  test('Cache Model & Encryption', () async {
    final model = ItemModel(id: 1345);
    final crypto = EncrypData();
    final directory = await getApplicationDocumentsDirectory();
    await Directory('${directory.path}').create();
    await Directory('${directory.path}/vb2').create();
    final path = '${directory.path}/vb2/${model.title}.json';
    final file = File(path);
    final modelValuesWithCrypto = crypto.crypteFile(model.toString());
    await file.writeAsString(modelValuesWithCrypto);

VB10

class EncrypData implements IEncrypData {
  late final Key key;
  late final IV iv;

  final String _privateKey = 'privateKey';
  final String _privateINV = 'privateINV';

  EncrypData() {
    key = Key.fromUtf8(dotenv.env[_privateKey] ?? '');
    iv = IV.fromUtf8(utf8.decode((dotenv.env[_privateINV] ?? '').codeUnits));

VB10

  test('Cache Model In File', () async {
    final model = ItemModel(id: 1345);
    final directory = await getApplicationDocumentsDirectory();
    await Directory('${directory.path}').create();
    await Directory('${directory.path}/vb2').create();
    final path = '${directory.path}/vb2/${model.title}.jso';
    final file = File(path);
    final fileWithData = await file.writeAsString(model.toString());
    expect(await fileWithData.exists(), true);
  });

VB10

  test('Fetch Pdf And Cache', () async {
    final response = await manager.downloadFileSimple('http://www.africau.edu/images/default/sample.pdf', null);
    final directory = await getApplicationDocumentsDirectory();
    await Directory('${directory.path}').create();
    await Directory('${directory.path}/vb2').create();
    final path = '${directory.path}/vb2/1.pdf';
    final file = File(path);
    final fileWithData = await file.writeAsBytes(response.data!);
    expect(await fileWithData.exists(), true);
  });

VB10

abstract class IHomeService {
  final INetworkManager manager;
  IHomeService(this.manager);

  Future<List<ItemModel>> fetchItem();
  Future<Uint8List?> downloadFile(String url, ProgressCallback callback);
}

enum _HomeServicePath { CACHE }

VB10

class LocaleSharedManager {
  static final LocaleSharedManager _instance = LocaleSharedManager._init();
  static LocaleSharedManager get instance => _instance;
  late final SharedPreferences _preferences;

  LocaleSharedManager._init() {
    SharedPreferences.getInstance().then((value) {
      _preferences = value;
    });
  }

VB10

class LocaleManager {
  static final LocaleManager _instance = LocaleManager._init();

  SharedPreferences? _preferences;
  static LocaleManager get instance => _instance;

  /// [SharedPreferences] init constructor.
  LocaleManager._init() {
    SharedPreferences.getInstance().then((value) {
      _preferences = value;

VB10

extension StringExtension on String {
  bool validateMinLenght([double value = 6]) {
    return this.length > value;
  }
}

VB10

extension ListViewExtension on ListView {
  Widget onLazyLoads(Future<void> Function() onPagingLoad, {Widget? itemLoadWidget}) {
    final delegate = childrenDelegate as SliverChildBuilderDelegate;
    final itemCount = delegate.childCount ?? 0;
    return NotificationListener<ScrollNotification>(
      onNotification: (ScrollNotification notification) {
        if (notification.metrics.pixels == notification.metrics.maxScrollExtent) {
          onPagingLoad();
        }
        return true;

VB10

enum NetworkPath { LOGIN, BUILD_HOME }

extension NetworkPath on NetworkRoutes {
  String get rawValue {
    switch (this) {
      case NetworkRoutes.LOGIN:
        return 'login';
      case NetworkRoutes.BUILD_HOME:
        return 'house';
      default: