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 the single-project architecture
• Understanding handlers, controls, layouts, and platform abstractions
• Platform-specific code implementation and conditional compilation
• Dependency management and NuGet package integration
• Utilizing Visual Studio and the .NET CLI
• Building and executing applications across Android, iOS, Windows, and macOS
• Exercise: Creating and configuring a multi-platform .NET MAUI application

2. Advanced MVVM Techniques and Patterns

• Review of MVVM principles and separation of concerns
• Advanced data binding methodologies
• Compiled bindings and optimizing binding performance
• INotifyPropertyChanged and observable collections
• Commands, asynchronous commands, and parameter handling
• Integration of CommunityToolkit.Mvvm and source generators
• ViewModels, service integration, and state management
• Navigation flows and navigation-aware ViewModels
• Managing validation and application state
• Exercise: Building a multi-page MVVM application featuring validation and asynchronous operations

3. Dependency Injection and Application Architecture

• In-built .NET dependency injection mechanisms
• Service lifetimes: transient, scoped, and singleton
• Registering platform-specific and shared services
• Constructor injection and service composition strategies
• Dependency inversion principles and loose coupling
• Implementing Repository and Service patterns
• Managing application-wide dependencies
• Configuration and environment-specific service handling
• Exercise: Refactoring 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 control functionalities
• Creating bespoke custom controls
• Managing platform-specific behaviors and APIs
• Implementing effects, behaviors, and reusable UI extensions
• Determining when to use handlers, behaviors, effects, or custom controls
• Exercise: Creating and integrating a customized cross-platform control

5. Building Reusable Components and Libraries

• Designing reusable UI component structures
• Creating custom controls and ContentViews
• Component parameterization and data binding strategies
• Developing reusable behaviors and converters
• Organizing shared application functionalities
• Creating .NET class libraries for MAUI applications
• Packaging and distributing reusable components
• Fundamentals of NuGet package management
• Exercise: Building a library of reusable components

6. Advanced UI/UX, Layouts, and Animations

• Advanced layout strategies and responsive UI design
• Adaptive interfaces for phones, tablets, and desktops
• Utilizing dynamic resources and styling options
• Managing resource dictionaries and themes
• Implementing light and dark theme modes
• Visual states and state-driven UI management
• Advanced animation and transition techniques
• Gesture recognition implementation
• Custom drawing and graphic capabilities
• Considerations for accessibility
• Exercise: Creating a responsive and animated MAUI interface

7. Handling Complex Data Scenarios

• Consuming REST APIs from within .NET MAUI
• HTTP clients and asynchronous data access patterns
• JSON serialization and deserialization processes
• Error handling strategies and retry mechanisms
• Local data persistence solutions
• Working with SQLite and local databases
• Applying Repository patterns for data access
• Designing offline-first applications
• Synchronizing local and remote data sources
• Conflict resolution strategies
• Caching mechanisms and cache invalidation
• Exercise: Implementing an offline-capable, data-driven application

8. Performance Tuning and Optimization

• Identifying performance bottlenecks
• Optimizing startup time
• Memory management and resource utilization
• Minimizing unnecessary UI updates
• Optimizing bindings and collection rendering
• Efficient image loading and caching strategies
• Asynchronous programming and preventing UI-thread blocks
• Background processing techniques
• Reducing application footprint
• Managing memory leaks and object lifecycles
• Exercise: Profiling and optimizing a deliberately inefficient MAUI application

9. Advanced Debugging and Profiling Techniques

• Debugging cross-platform application issues
• Utilizing breakpoints, watches, and exception handling
• Diagnosing UI and lifecycle-related problems
• Logging and structured diagnostics
• Using .NET diagnostics and profiling tools
• CPU and memory profiling analysis
• Detecting memory leaks
• Investigating slow UI rendering issues
• Debugging platform-specific problems
• Utilizing device and emulator diagnostics
• Exercise: Diagnosing and resolving common performance and runtime issues

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

• Selecting an appropriate application architecture
• Concepts of Clean Architecture
• Layered architecture implementation
• Separation of UI, business logic, and data access
• Repository and service abstractions
• Applying SOLID principles in MAUI applications
• Managing application state
• Feature-based project organization
• Modular application design
• Considerations for scalability and maintainability
• Exercise: Designing the architecture for a production-scale MAUI application

11. Advanced Testing Strategies

• Unit testing ViewModels and services
• Testing business logic independently from the UI
• Mocking dependencies for testing
• Testing asynchronous code segments
• Testing navigation flows and application state
• UI and integration testing concepts
• Designing a testable application architecture
• Continuous integration considerations
• Exercise: Creating a comprehensive test suite for a MAUI application

12. Security in .NET MAUI Applications

• Secure application architecture design
• Securely storing sensitive information
• Authentication and authorization flows
• Token management practices
• API security considerations
• Protecting locally stored data
• Secure communication with backend services
• Handling credentials and secrets securely
• Common mobile application security risks
• Exercise: Implementing 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
• Android application packaging processes
• iOS application deployment concepts
• Windows application packaging
• Versioning and release management strategies
• Environment-specific configuration setup
• Publishing applications to app stores
• CI/CD considerations for MAUI projects
• Exercise: Preparing 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 considerations
• Maintaining applications across different .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 mechanisms
• Implementing validation and error handling
• Applying performance optimizations
• Adding security and authentication layers
• Testing critical application functionalities
• Preparing the application for deployment

16. Summary and Next Steps

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