Advanced .NET MAUI Training Course

1. Introduction to .NET MAUI and Cross-Platform Development

• .NET MAUI architecture and application lifecycle
• Multi-platform project structure and single-project architecture
• Understanding handlers, controls, layouts, and platform abstractions
• Platform-specific code and conditional compilation
• Dependency management and NuGet packages
• Working with Visual Studio and the .NET CLI
• Building and running applications across Android, iOS, Windows, and macOS
• Exercise: Create and configure a multi-platform .NET MAUI application

2. Advanced MVVM Techniques and Patterns

• Review of MVVM and separation of concerns
• Advanced data binding techniques
• Compiled bindings and binding performance
• INotifyPropertyChanged and observable collections
• Commands, asynchronous commands, and command parameters
• CommunityToolkit.Mvvm and source generators
• ViewModels, services, and state management
• Navigation and navigation-aware ViewModels
• Handling validation and application state
• Exercise: Build a multi-page MVVM application with validation and asynchronous operations

3. Dependency Injection and Application Architecture

• Built-in .NET dependency injection
• Service lifetimes: transient, scoped, and singleton
• Registering platform-specific and shared services
• Constructor injection and service composition
• Dependency inversion and loose coupling
• Repository and service patterns
• Managing application-wide dependencies
• Configuration and environment-specific services
• Exercise: Refactor an application using dependency injection

4. Deep Dive into Customizing and Extending .NET MAUI

• Understanding handlers and the .NET MAUI rendering architecture
• Custom handlers and platform-specific implementations
• Mapping .NET MAUI controls to native platform controls
• Extending existing controls
• Creating custom controls
• Platform-specific behavior and APIs
• Effects, behaviors, and reusable UI extensions
• When to use handlers, behaviors, effects, or custom controls
• Exercise: Create and integrate a customized cross-platform control

5. Building Reusable Components and Libraries

• Designing reusable UI components
• Creating custom controls and ContentViews
• Component parameterization and data binding
• Creating reusable behaviors and converters
• Organizing shared application functionality
• Creating .NET class libraries for MAUI applications
• Packaging and distributing reusable components
• NuGet package fundamentals
• Exercise: Build a reusable component library

6. Advanced UI/UX, Layouts, and Animations

• Advanced layouts and responsive UI design
• Adaptive interfaces for phones, tablets, and desktops
• Dynamic resources and styling
• Resource dictionaries and theme management
• Light and dark themes
• Visual states and state-driven UI
• Advanced animations and transitions
• Gesture recognition
• Custom drawing and graphics
• Accessibility considerations
• Exercise: Create a responsive and animated MAUI interface

7. Handling Complex Data Scenarios

• Consuming REST APIs from .NET MAUI
• HTTP clients and asynchronous data access
• JSON serialization and deserialization
• Error handling and retry strategies
• Local data persistence
• SQLite and local databases
• Repository patterns for data access
• Offline-first application design
• Synchronization between local and remote data
• Conflict resolution strategies
• Caching and cache invalidation
• Exercise: Implement an offline-capable data-driven application

8. Performance Tuning and Optimization

• Identifying performance bottlenecks
• Startup-time optimization
• Memory management and resource usage
• Reducing unnecessary UI updates
• Optimizing bindings and collection rendering
• Efficient image loading and caching
• Async programming and avoiding UI-thread blocking
• Background processing
• Reducing application size
• Managing memory leaks and object lifetimes
• Exercise: Profile and optimize an intentionally inefficient MAUI application

9. Advanced Debugging and Profiling Techniques

• Debugging cross-platform applications
• Breakpoints, watches, and exception handling
• Diagnosing UI and lifecycle issues
• Logging and structured diagnostics
• .NET diagnostics and profiling tools
• CPU and memory profiling
• Detecting memory leaks
• Investigating slow UI rendering
• Debugging platform-specific issues
• Using device and emulator diagnostics
• Exercise: Diagnose and resolve common performance and runtime problems

10. Architectural Patterns and Best Practices for Large-Scale Applications

• Choosing an appropriate application architecture
• Clean Architecture concepts
• Layered architecture
• Separation of UI, business logic, and data access
• Repository and service abstractions
• SOLID principles in MAUI applications
• Managing application state
• Feature-based project organization
• Modular application design
• Scalability and maintainability considerations
• Exercise: Design the architecture of a production-scale MAUI application

11. Advanced Testing Strategies

• Unit testing ViewModels and services
• Testing business logic independently of the UI
• Mocking dependencies
• Testing asynchronous code
• Testing navigation and application state
• UI and integration testing concepts
• Testable application architecture
• Continuous integration considerations
• Exercise: Create a test suite for a MAUI application

12. Security in .NET MAUI Applications

• Secure application architecture
• Securely storing sensitive information
• Authentication and authorization
• Token management
• API security considerations
• Protecting locally stored data
• Secure communication with backend services
• Handling credentials and secrets
• Common mobile application security risks
• Exercise: Implement secure authentication and credential storage

13. Application Deployment and Distribution

• Building applications for different platforms
• Release versus Debug configurations
• Application signing and certificates
• Android application packaging
• iOS application deployment concepts
• Windows application packaging
• Versioning and release management
• Environment-specific configuration
• Publishing applications to app stores
• CI/CD considerations for MAUI projects
• Exercise: Prepare a MAUI application for production deployment

14. Latest .NET MAUI and Visual Studio Features

• Recent .NET MAUI improvements and changes
• New controls, APIs, and development capabilities
• Improvements to handlers and platform integration
• Visual Studio tooling and productivity features
• Modern .NET development practices
• Evaluating third-party libraries and MAUI Community Toolkit features
• Migration and upgrade considerations
• Maintaining applications across .NET versions

15. Capstone Exercise: Building a Production-Ready .NET MAUI Application

• Define application requirements and architecture
• Design the MVVM structure
• Configure dependency injection
• Implement reusable UI components
• Connect to remote and local data sources
• Add caching and synchronization
• Implement validation and error handling
• Apply performance optimizations
• Add security and authentication
• Test critical application functionality
• Prepare the application for deployment

16. Summary and Next Steps

• Review of advanced .NET MAUI concepts
• Common architectural and performance pitfalls
• Recommended development practices
• Further learning resources
• Planning the next steps toward production-ready MAUI development
• Q&A and discussion of participants' projects