Flutter With Praveen

  Mastering Layout Widgets in Flutter: Expanded, Flexible, Spacer & More Expanded Widget – Fills the Available Space The   Expanded   widget   allows a child widget to take up all available space within a   Row, Column, or Flex . return Scaffold ( appBar: AppBar (title: Text ( "Expanded in Column" )), body: Column ( children: [ Expanded ( child: Container ( color: Colors. red ), ), Expanded (child: Container (color: Colors. green )), Expanded(child: Container (color: Colors. blue )), ], ), ); 👉   Both containers will take equal space inside the Row, no matter the screen size. 🛠 When to Use? ✅ When you want widgets to take equal space. ✅ When you need a responsive layout that adjusts automatically. Flexible Widget – Fills Space but Can Shrink The difference between   Expanded   and   Flexible   is: Expanded   always takes up all available space. Flexible   tries to ...

  Flutter Provider: FutureProvider vs ChangeNotifierProvider vs StreamProvider for API Calls State management is crucial in Flutter apps, especially when handling API calls. In this post, we will explore   FutureProvider   for automatic API fetching,   ChangeNotifierProvider   for manual control, and   StreamProvider   for real-time data updates. 1. Using FutureProvider for Automatic API Calls FutureProvider is useful when you want to   fetch data once and automatically update the UI   when the data is received. Example: Fetching Posts from an API Using FutureProvider import 'dart:convert' ; import 'package:flutter/material.dart' ; import 'package:provider/provider.dart' ; import 'package:http/http.dart' as http; void main () { runApp( FutureProvider <List< dynamic >>( create: (context) => fetchPosts(), initialData: [], child: MyApp (), ), ); } Future<List< dynamic >> fetchPosts () asyn...

  Why Use Provider for API Calls? When building Flutter apps, managing API calls efficiently is crucial.   Provider   simplifies this by handling state management and ensuring smooth UI updates. In this blog, we'll learn how to use   Provider   for API calls, fetching data from a remote server and displaying it in a Flutter app. Let's dive in!   Setting Up Dependencies First, add the required packages to your project: flutter pub add provider http provider : Manages state efficiently. http : Helps in making network requests. Creating API Service Class This class will handle the API requests. import 'dart:convert' ; import 'package:http/http.dart' as http; class ApiService { Future<List< dynamic >> fetchPosts () async { final response = await http.get(Uri. parse ( 'https://jsonplaceholder.typicode.com/posts' )); if (response.statusCode == 200 ) { return jsonDecode(response.body); } else { throw Exception ( "Faile...

# 🚀 Advanced Provider in Flutter: Mastering State Management ### **Why Should You Care About Provider?** Imagine you're building a Flutter app, and suddenly, managing state becomes a nightmare. Multiple screens need data, API calls take time, and real-time updates make things even more complex. Enter **Provider**, the simplest yet powerful way to handle state efficiently! 🚀 **New to Provider?** If you’re just starting out and want to understand the basics of Provider, check out our **beginner-friendly blog** here (#). It covers everything from setup to fundamental concepts! In this blog, we'll dive deep into **advanced Provider concepts** like: ✅ `MultiProvider` - Handling multiple states efficiently.   ✅ `FutureProvider` - Managing API calls seamlessly.   ✅ `StreamProvider` - Handling real-time data updates.   ✅ `ProxyProvider` - Managing dependent states dynamically.   ✅ `Selector & Consumer` - Optimizing performance by reducing unnecessa...

Flutter Provider: A Beginner's Guide to State Management State management is one of the most crucial aspects of Flutter app development. Among the various options available,   Provider   is one of the most popular and beginner-friendly solutions. In this blog, we will explore what Provider is, why it is useful, and how to implement it step by step. What is Provider in Flutter? Provider is a state management solution for Flutter applications that helps separate UI from business logic. It allows data to be shared efficiently across multiple widgets without requiring complex   setState()   calls. Why Use Provider? Simple and Easy to Use   – Less boilerplate code compared to other state management solutions. Efficient UI Updates   – Only widgets that depend on the data will rebuild, improving performance. Separation of Concerns   – Keeps business logic separate from UI components. Scalability   – Works well for small and large applications. How to Imp...