10/31/2023 0 Comments Flutter provider mvvm![]() ![]() If any exception occurs during the API call, throw an exception with the error message. Import './viewmodels/user_view_model.dart' Ĭonst UserList(') User_list.dart : View file for displaying the list of users. Title: 'User List', // Meta Title for the App Provide the UserViewModel with UserRepository dependency to manage user data and API callsĬreate: (context) => UserViewModel(userRepository: userRepository), Create UserRepository instance with the ApiService instanceįinal UserRepository userRepository = UserRepository(apiService: apiService) Create ApiService instance with the Dio instanceįinal ApiService apiService = ApiService(dio: dio) YouTube GitHub - shubham-chhimpa/flutter-mvvm-provider-demo Web28 thg 2. Import './data/services/api_service.dart' Flutter mvvm provider github Google Flutter - MVVM in Flutter using Providers. Import './data/repositories/user_repository.dart' Import 'package:flutteryfly/viewmodels/user_view_model.dart' Lastly, the View/UI receives the data and displays it. ViewModel receives update of data, it in turn also notifies listener (View) about new data. When done, notify listeners (ViewModels) that data is loaded. Main.dart : The main entry point of the Flutter app. Basically just this data flow: Repository -> ViewModel -> View (and other way around). Learn how to manage user data and API integration efficiently with sample code and best practices. Furthermore, it doesn't have any idea about which View it has to use as it does not possess a direct reference with the View.īuild a Flutter user list app using Dio for API calls and MVVM architecture. ViewModel: It acts as a connection between the View and the business logic. View: It contains the UI Code, Also sends the user action to the ViewModel but does not receive the response back directly. It also consists of the business logic - local and remote data source, model classes, repository. Model: It represents the business logic and the data of an Application. The separate code layers of Model View ViewModel are: ├── main.dart // The main entry point of the Flutter app. │ └── loading_spinner.dart // Reusable loading spinner widget. │ ├── user_tile.dart // Reusable widget for displaying user details in a list. │ └── user_view_model.dart // ViewModel class for managing user data and API calls. │ └── user_list.dart // View file for displaying the list of users. │ └── logger.dart // Utility for logging app events or errors. │ ├── constants.dart // Contains constant values used throughout the app. │ └── api_service.dart // Provides methods to interact with the API using Dio or other HTTP clients. │ │ └── user_repository.dart // Handles fetching user data from the API. │ │ └── user.dart // Contains the User model class for representing user data. Learn how to integrate Dio (HTTP client) with MVVM architecture to perform Get API calls efficiently.Įxplore sample code, step-by-step tutorial, and best practices for seamless API integration.
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