Advanced .NET MAUI Training Course

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

• .NET MAUI architecture and the application lifecycle
• Multi-platform project structure and single-project architecture
• Exploring handlers, controls, layouts, and platform abstractions
• Implementing platform-specific code and conditional compilation
• Managing dependencies and NuGet packages
• Utilizing Visual Studio and the .NET CLI
• Building and running applications on Android, iOS, Windows, and macOS
• Exercise: Create and configure a multi-platform .NET MAUI application

2. Advanced MVVM Techniques and Patterns

• Revisiting MVVM and the principle of separation of concerns
• Advanced data binding strategies
• Compiled bindings and optimizing binding performance
• INotifyPropertyChanged and observable collections
• Implementing commands, asynchronous commands, and command parameters
• Leveraging CommunityToolkit.Mvvm and source generators
• Managing ViewModels, services, and application state
• Navigation patterns and navigation-aware ViewModels
• Managing validation and application state
• Exercise: Build a multi-page MVVM application featuring validation and asynchronous operations

3. Dependency Injection and Application Architecture

• Utilizing the built-in .NET dependency injection
• Understanding service lifetimes: transient, scoped, and singleton
• Registering platform-specific and shared services
• Employing constructor injection and service composition
• Applying dependency inversion and loose coupling
• Implementing repository and service patterns
• Managing application-wide dependencies
• Configuring environment-specific services
• Exercise: Refactor an application to utilize dependency injection

4. Deep Dive into Customizing and Extending .NET MAUI

• Understanding handlers and the .NET MAUI rendering architecture
• Developing custom handlers and platform-specific implementations
• Mapping .NET MAUI controls to native platform controls
• Extending existing controls
• Creating bespoke custom controls
• Incorporating platform-specific behavior and APIs
• Utilizing effects, behaviors, and reusable UI extensions
• Determining when to apply 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
• Parameterizing components and managing data binding
• Developing reusable behaviors and converters
• Organizing shared application functionality
• Creating .NET class libraries for MAUI applications
• Packaging and distributing reusable components
• Foundations of NuGet packaging
• Exercise: Build a reusable component library

6. Advanced UI/UX, Layouts, and Animations

• Advanced layouts and responsive UI design principles
• Adaptive interfaces for phones, tablets, and desktops
• Dynamic resources and styling techniques
• Managing resource dictionaries and themes
• Implementing light and dark themes
• Visual states and state-driven UI design
• Advanced animations and transitions
• Gestural recognition implementation
• Custom drawing and graphical elements
• Considerations for accessibility
• Exercise: Create a responsive and animated MAUI interface

7. Handling Complex Data Scenarios

• Consuming REST APIs within .NET MAUI
• HTTP clients and asynchronous data access patterns
• JSON serialization and deserialization
• Error handling and retry strategies
• Local data persistence solutions
• SQLite and local database integration
• Repository patterns for data access
• Designing offline-first applications
• Synchronizing local and remote data
• Conflict resolution strategies
• Managing caching and cache invalidation
• Exercise: Implement an offline-capable data-driven application

8. Performance Tuning and Optimization

• Identifying performance bottlenecks
• Optimizing application startup time
• Memory management and resource utilization
• Minimizing unnecessary UI updates
• Optimizing bindings and collection rendering
• Efficient image loading and caching mechanisms
• Asynchronous programming to prevent UI-thread blocking
• Implementing background processing
• Reducing overall application size
• Managing memory leaks and object lifetimes
• Exercise: Profile and optimize an intentionally inefficient MAUI application

9. Advanced Debugging and Profiling Techniques

• Debugging strategies for cross-platform applications
• Utilizing breakpoints, watches, and exception handling
• Diagnosing UI and lifecycle issues
• Implementing logging and structured diagnostics
• Leveraging .NET diagnostics and profiling tools
• CPU and memory profiling
• Detecting and resolving memory leaks
• Investigating slow UI rendering issues
• Debugging platform-specific anomalies
• Using device and emulator diagnostics
• Exercise: Diagnose and resolve common performance and runtime problems

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

• Selecting an appropriate application architecture
• Concepts of Clean Architecture
• Implementing layered architecture
• Separating UI, business logic, and data access
• Defining repository and service abstractions
• Applying SOLID principles in MAUI applications
• Managing application state
• Organizing projects by feature
• Designing modular applications
• Considerations for scalability and maintainability
• Exercise: Design the architecture of a production-scale MAUI application

11. Advanced Testing Strategies

• Unit testing ViewModels and services
• Testing business logic independently from the UI
• Mocking dependencies for isolation
• Testing asynchronous code paths
• Testing navigation and application state
• Concepts in UI and integration testing
• Designing a testable application architecture
• Considerations for continuous integration
• Exercise: Create a comprehensive test suite for a MAUI application

12. Security in .NET MAUI Applications

• Architecting for security
• Securely storing sensitive information
• Implementing authentication and authorization
• Managing security tokens
• API security considerations
• Protecting locally stored data
• Securing communication with backend services
• Handling credentials and secrets
• Mitigating common mobile application security risks
• Exercise: Implement secure authentication and credential storage

13. Application Deployment and Distribution

• Building applications for various platforms
• Differences between Release and Debug configurations
• Application signing and certificate management
• Packaging Android applications
• Concepts in iOS application deployment
• 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 improvements and changes in .NET MAUI
• New controls, APIs, and development capabilities
• Enhancements 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 strategies
• Maintaining applications across .NET versions

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

• Defining application requirements and architecture
• Designing the MVVM structure
• Configuring dependency injection
• Implementing reusable UI components
• Connecting to remote and local data sources
• Adding caching and synchronization
• Implementing validation and error handling
• Applying performance optimizations
• Incorporating security and authentication
• Testing critical application functionality
• Preparing the application for deployment

16. Summary and Next Steps

• Review of advanced .NET MAUI concepts
• Identifying common architectural and performance pitfalls
• Recommended development practices
• Resources for further learning
• Planning next steps toward production-ready MAUI development
• Q&A session and discussion of participant projects