Flutter Mobile App Development - Flutter Mobile App Development 04

Flutter Mobile App Development – Lecture 04 Modular Design, State Management & Advanced User Input 🎓 Course: Flutter Mobile App Development 👨‍🏫 Instructor: Dr. Abbas Malik 🏛 University: Prince Sultan University – College of Computer & Information Sciences 💡 Perfect for beginners in Flutter or anyone looking to strengthen their UI/UX layout skills in mobile development! 🔹 Course GitHub Repository: 📂 All course materials, code examples, and projects: https://github.com/mgmalik/flutterappdev Image Source: https://www.clipartmax.com/ Description: In this comprehensive lecture, Dr. Abbas Malik explores advanced Flutter concepts including modular widget design, state management techniques, and implementing rich user input interfaces. Learn how to build scalable apps with clean architecture and handle complex user interactions! 🔹 Topics Covered: • Modular Widget Design: o Refactoring Number Game App into reusable components (GameTitle, GameRules, PlayPrompt, NumberButton) o Benefits of modular design: maintainable, reusable, and testable code o Building complex UIs from simple, focused widgets • How Flutter Works Internally: o Understanding the Three Trees: Widget Tree, Element Tree, RenderObject Tree o Widget lifecycle methods: initState(), didChangeDependencies(), didUpdateWidget(), build() o Flutter architecture layers: Framework, Engine, Embedder • State Management Deep Dive: o Ephemeral State vs. App State o Passing data down the widget tree o InheritedWidgets: Theme, MediaQuery, and custom implementations o Provider Package: Simplifying state management with ChangeNotifier o Building a Counter App with both direct InheritedWidget and Provider approaches • Advanced User Input Widgets: o Text Input: SelectableText, RichText, TextField with decoration, controller, and callbacks o Forms: Grouping form fields with Form and TextFormField containers o Chips: InputChip, ChoiceChip, FilterChip, ActionChip for compact information display o DropdownMenu: Creating filtered selection menus with custom entries o Sliders: Adjusting values with visual feedback o Toggle Widgets: Checkbox, Switch, Radio buttons, CheckboxListTile, SwitchListTile o Date & Time Pickers: DatePickerDialog and TimePickerDialog • Splash Screens: o Creating custom splash screens with flutter_native_splash package o Enhancing user experience with branding and loading feedback 🔹 Hands-On Projects: • Modular Number Game App: Refactored version with reusable components • TMNT Character Selector: Practical demo featuring custom splash screen and radio button image switching • Provider-based Counter App: State management implementation 🔹 Resources & References: • Flutter Documentation: https://docs.flutter.dev/ • Dart Language Guide: https://dart.dev/language • Flutter Widgets Catalog: https://docs.flutter.dev/ui/widgets • State Management Guide: https://docs.flutter.dev/data-and-backend/state-mgmt • YouTube Flutter Series: https://www.youtube.com/watch?v=OXn1QhNrPKQ • User Input Fundamentals: https://docs.flutter.dev/get-started/fundamentals/user-input #Flutter #StateManagement #Provider #InheritedWidget #ModularDesign #UserInput #MobileDevelopment #Widgets #FlutterArchitecture #AppDevelopment #FlutterTutorial #PSU #IS487 #Programming