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Flutter Navigation and Data Handling

Jul 20, 2024

Flutter Navigation and Data Handling

Instructor Introduction

  • Instructor: Assalam Alaikum, welcome to a beginner's course for Flutter 2024.
  • Focus: Covering Flutter, Dart, complex UI, stateful and stateless widgets, routing/navigation, state management (GetX, BLoC, Riverpod), and environment setup (VS Code, Flutter SDK, Android Studio).
  • Goal: Build a homepage UI, search screen, ticket screen, and profile page.

Course Outline

  1. Complex UI Components
    • Class Concepts
    • Constructor
    • Inheritance
    • Stateful & Stateless Widgets
    • Reusable Widgets
  2. Dart Language Essentials
    • Lists and Maps
    • Iterations
    • JSON and Map Data Processing
  3. State Management
    • GetX
    • BLoC
    • Riverpod
  4. Navigation and Routing
    • Multi-Screen Apps
    • Passing Data Between Screens
  5. Installation & Setup
    • VS Code
    • Flutter SDK
    • Android Studio
    • Environment Variables (PATH)

State Management Systems

  • GetX
  • BLoC
  • Riverpod

Navigation and Routing

  • Using Navigator for routing
  • Navigating and managing multiple screens
  • Passing arguments between screens
  • Custom routes configuration and dynamic navigation

Installation Walkthrough

  1. VS Code

    • Download and Install VS Code from the official website.
    • Configure extensions: Flutter, Dart.

  2. Flutter SDK

    • Download the latest Flutter SDK.
    • Extract and configure environment variables.
    • Run flutter doctor to verify installation.

  3. Android Studio

    • Download and install Android Studio.
    • Install essential plugins and SDK components.
    • Setup Emulator or Virtual Device.

  4. VS Code Configuration

    • Install essential extensions.
    • Set up a new Flutter project.
    • Configure debugging and build setup.

Working with Lists and Maps in Dart

  • Basic List and Map operations.
  • Iterations through lists and maps.
  • Handling JSON data and converting it to Map objects.

Complex Widget Layouts

Using Navigator for Navigation

  • Configuring routes using routes map in MaterialApp.
  • Defining navigation logic using Navigator.push() and Navigator.pushNamed().
  • Passing and handling arguments dynamically using ModalRoute.
  • Using GestureDetector for creating clickable widgets.
  • Building custom UI with SingleChildScrollView, ListView, GridView, and CustomScrollView.

Dynamic Data Loading

  • Loading data from local JSON files.
  • Mapping JSON data to Dart objects and utilizing it in widgets.

Custom Scroll Effect and Animation

  • Configuring custom scroll views and animations for enhancing UI.
  • Using SliverAppBar and SliverList for dynamic scrolling effects.
  • Implementing flexible space bars for dynamic effects.

Building a Responsive UI

  • Using MediaQuery for responsive designs.
  • Handling different screen sizes and orientations.

Reusable Widget Creation

  • Building and importing reusable widgets for common UI elements.
  • Passing dynamic data to widgets via constructors.

Styling and Theming

  • Configuring global styles with centralized theme management.
  • Utilizing BoxDecoration for advanced styling and decorations.

Final Projects

  • Building a complete ticket booking UI with navigation and dynamic data handling.
  • Implementing a profile page with image handling and data binding.

Conclusion

  • Comprehensive review of concepts.
  • Access to additional resources and further reading.
  • Encouragement to practice and explore more Flutter features.

Full transcript