Build a QR Payment Feature in Flutter (Banking App – Part 1) скачать в хорошем качестве

Build a QR Payment Feature in Flutter (Banking App – Part 1)

Welcome to Part 1 of our complete QR payment system tutorial! In this video, we'll create a beautiful QR code generation feature for our Flutter banking app that allows users to display their personal payment QR code - just like Venmo, Cash App, or PayPal. By the end of this tutorial, you'll have a fully functional QR code generator that pulls user data from Firebase and displays it in a stunning, customized interface. No amount needed - the person paying decides how much to send! ━━━━━━━━━━━━━━━━━━━━━━ 📱 WHAT YOU'LL BUILD IN PART 1 ━━━━━━━━━━━━━━━━━━━━━━ ✅ Tabbed interface with Material TabBar ✅ Real-time QR code generation using qr_flutter package ✅ Firebase Firestore integration for user data ✅ Customized QR code colors matching app theme ✅ Beautiful gradient UI with shadows and animations ✅ Comprehensive error handling and loading states ✅ Seamless bottom navigation integration ✅ Production-ready code structure ━━━━━━━━━━━━━━━━━━━━━━ ⏱️ CHAPTER TIMESTAMPS ━━━━━━━━━━━━━━━━━━━━━━ 0:00 - Introduction & Series Overview 0:40 - Adding Dependencies 1:23 - File Structure & Required Imports 2:05 - Building the Main Page with StatefulWidget 5:35 - Creating the Scaffold & AppBar with TabBar 8:53 - Generate QR Tab - State Management Setup 10:46 - QR Code Generation Logic & Firebase Integration 15:10 - UI Implementation - Container & Gradients 17:10 - Displaying User Name & QR Code with Custom Styling 22:37 - Adding Info Message & Final Touches 25:40 - Live Testing & Outro ━━━━━━━━━━━━━━━━━━━━━━ 📦 DEPENDENCIES REQUIRED ━━━━━━━━━━━━━━━━━━━━━━ qr_flutter: ^4.1.0 firebase_core: (already setup) firebase_auth: (already setup) cloud_firestore: (already setup) ━━━━━━━━━━━━━━━━━━━━━━ 🎯 KEY CONCEPTS COVERED ━━━━━━━━━━━━━━━━━━━━━━ TabController and SingleTickerProviderStateMixin JSON encoding for QR code payloads FutureBuilder for async data fetching Firebase Firestore real-time data retrieval Custom QR code styling (colors, shapes, eye styles) Proper widget lifecycle management State management best practices Error handling with try-catch blocks Loading state indicators Navigation flow with bottom nav bar ━━━━━━━━━━━━━━━━━━━━━━ 💻 SOURCE CODE & RESOURCES ━━━━━━━━━━━━━━━━━━━━━━ 📂 GitHub Repository: [https://github.com/SecureDevMY/flutte...] ━━━━━━━━━━━━━━━━━━━━━━ ⏭️ WHAT'S NEXT IN PART 2 ━━━━━━━━━━━━━━━━━━━━━━ 🔜 Live camera QR code scanner 🔜 Beautiful payment confirmation screen 🔜 Amount input with balance validation 🔜 Atomic Firestore batch transactions 🔜 Complete payment flow from scan to success Don't miss Part 2 - Subscribe and turn on notifications! 🔔 ━━━━━━━━━━━━━━━━━━━━━━ 🏷️ TAGS ━━━━━━━━━━━━━━━━━━━━━━ #Flutter #FlutterTutorial #Firebase #QRCode #MobileDevelopment #FlutterDevelopment #QRPayment #Firestore #FlutterFirebase #MobileApp #AppDevelopment #CodingTutorial #Programming #TechTutorial #QRCodeGenerator #PaymentApp #FlutterUI #DartProgramming #LearnFlutter #FlutterBeginner