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Building a Dynamic Product List with GetX in Flutter

Building a Dynamic Product List with GetX in Flutter Learn how to create a responsive product screen using GetX in Flutter. This tutorial covers API integration, pagination, cart management, and quantity selection with efficient state management. Perfect for building an e-commerce app! class ProductScreenController extends GetxController{      RxList<Product> productList = <Product>[].obs;   RxList<Product> cartList = <Product>[].obs;   RxMap<int , int> quantityMap = <int , int>{}.obs;   RxMap<int, bool> showQuantitySelector = <int, bool>{}.obs; // ✅ Track Visibility of Quantity Selector   RxBool isLoading = false.obs;   RxBool isLoadingMore = false.obs;   final Dio dio = Dio();   int limit = 10;   int skip = 0;   bool hasMore = true; // ✅ Track if more data is available   @override   void onInit() {  // ✅ Automatically Call API when Controller initializes   ...
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Flutter pagination tutorial

option 1 import 'dart:convert'; import 'package:flutter/material.dart'; import 'package:get/get.dart'; import 'package:http/http.dart' as http; // API Service class ApiService {   static const String baseUrl = "https://jsonplaceholder.typicode.com";   static Future<List<dynamic>> fetchData(int page, int limit) async {     final response = await http.get(Uri.parse("$baseUrl/posts?_page=$page&_limit=$limit"));     if (response.statusCode == 200) {       return json.decode(response.body);     } else {       throw Exception("Failed to load data");     }   } } // GetX Controller for Pagination class PaginationController extends GetxController {   var items = <dynamic>[].obs;   var page = 1.obs;   final int limit = 10;   var isLoading = false.obs;   var hasMore = true.obs;   ScrollController scrollController = ScrollController();   @override   void...
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send data controller to provider

 send data controller to provider import 'package:flutter/material.dart'; import 'model.dart'; class TaskProvider extends ChangeNotifier {   List<Task> _tasks = [];   List<Task> get tasks => _tasks;   // Create operation   void addTask(Task task) {     _tasks.add(task);     notifyListeners();   }   // Read operation (already accessible via getter tasks)   // Update operation   void updateTask(Task task) {     // Find the task in the list and update it     int index = _tasks.indexWhere((t) => t.id == task.id);     if (index != -1) {       _tasks[index] = task;       notifyListeners();     }   }   // Delete operation   void deleteTask(String id) {     _tasks.removeWhere((task) => task.id == id);     notifyListeners();   } } class Task {   String id;   String title;   bool completed...
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http pro flutter

 model // models/post.dart class Post {   final int id;   final String title;   final String body;   Post({required this.id, required this.title, required this.body});   factory Post.fromJson(Map<String, dynamic> json) {     return Post(       id: json['id'],       title: json['title'],       body: json['body'],     );   } } provider // providers/post_provider.dart import 'package:flutter/material.dart'; import 'package:http/http.dart' as http; import 'dart:convert'; import '../models/post.dart'; class PostProvider extends ChangeNotifier {   List<Post> _posts = [];   List<Post> get posts => _posts;   Future<void> fetchPosts() async {     final url = Uri.parse('https://jsonplaceholder.typicode.com/posts');     final response = await http.get(url);     if (response.statusCode == 200) {       Iterable json...
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http model tutorial flutter

 import 'dart:convert'; import 'package:flutter/material.dart'; import 'package:http/http.dart' as http; // Define a model class to represent the data class Post {   final int id;   final String title;   final String body;   Post({this.id, this.title, this.body});   factory Post.fromJson(Map<String, dynamic> json) {     return Post(       id: json['id'],       title: json['title'],       body: json['body'],     );   } } class DataFetchScreen extends StatefulWidget {   @override   _DataFetchScreenState createState() => _DataFetchScreenState(); } class _DataFetchScreenState extends State<DataFetchScreen> {   List<Post> posts = [];   bool isLoading = false;   String errorMessage;   Future fetchData() async {     setState(() {       isLoading = true;     });     var url = 'https://jsonplaceholder.t...
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http tutorial flutter

 import 'dart:convert'; import 'package:flutter/material.dart'; import 'package:http/http.dart' as http; class DataFetchScreen extends StatefulWidget {   @override   _DataFetchScreenState createState() => _DataFetchScreenState(); } class _DataFetchScreenState extends State<DataFetchScreen> {   List<dynamic> data = [];   bool isLoading = false;   String errorMessage;   Future fetchData() async {     setState(() {       isLoading = true;     });     var url = 'YOUR_API_ENDPOINT';     try {       var response = await http.get(url);       if (response.statusCode == 200) {         setState(() {           data = json.decode(response.body);           errorMessage = null;         });       } else {         setState(() {     ...
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Image picker post image Flutter 2024

Image picker post image Flutter 2024 import 'package:flutter/material.dart'; import 'package:image_picker/image_picker.dart'; import 'dart:io'; import 'package:http/http.dart' as http; class ImageUploadScreen extends StatefulWidget {   @override   _ImageUploadScreenState createState() => _ImageUploadScreenState(); } class _ImageUploadScreenState extends State<ImageUploadScreen> {   File _image;   final picker = ImagePicker();   Future getImage() async {     final pickedFile = await picker.getImage(source: ImageSource.gallery);     setState(() {       if (pickedFile != null) {         _image = File(pickedFile.path);       } else {         print('No image selected.');       }     });   }   Future uploadImage() async {     if (_image == null) return;     // Change this URL to your server endpoint     var...
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