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
• Comprehending handlers, controls, layouts, and platform abstractions
• Platform-specific code implementation and conditional compilation
• Dependency management through NuGet packages
• Utilizing Visual Studio and the .NET CLI
• Building and executing 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 principles and separation of concerns
• Advanced data binding methodologies
• Compiled bindings and optimizing binding performance
• INotifyPropertyChanged and observable collections
• Commands, asynchronous commands, and managing command parameters
• Utilizing CommunityToolkit.Mvvm and source generators
• Managing ViewModels, services, and application state
• Navigation strategies and navigation-aware ViewModels
• Handling data validation and maintaining application state
• Exercise: Build a multi-page MVVM application incorporating validation and asynchronous operations

3. Dependency Injection and Application Architecture

• Leveraging built-in .NET dependency injection
• Managing service lifetimes: transient, scoped, and singleton
• Registering platform-specific and shared services effectively
• Constructor injection and service composition techniques
• Applying dependency inversion for loose coupling
• Implementing Repository and Service patterns
• Managing application-wide dependencies
• Configuring environment-specific services
• Exercise: Refactor an existing 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 for platform-specific implementations
• Mapping .NET MAUI controls to native platform controls
• Extending the functionality of existing controls
• Creating entirely custom controls
• Integrating platform-specific behaviors and APIs
• Implementing effects, behaviors, and reusable UI extensions
• Determining 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 highly reusable UI components
• Creating custom controls and ContentViews
• Component parameterization and efficient data binding
• Developing reusable behaviors and converters
• Organizing shared application functionality
• Creating .NET class libraries tailored for MAUI applications
• Packaging and distributing reusable components
• Fundamentals of NuGet packages
• Exercise: Build a comprehensive reusable component library

6. Advanced UI/UX, Layouts, and Animations

• Advanced layouts and responsive UI design principles
• Creating adaptive interfaces for phones, tablets, and desktops
• Utilizing dynamic resources and styling options
• Resource dictionaries and effective theme management
• Implementing light and dark themes
• Visual states and state-driven UI design
• Advanced animations and smooth transitions
• Implementing gesture recognition
• Custom drawing and graphics capabilities
• Considerations for accessibility
• Exercise: Create a responsive and animated MAUI interface

7. Handling Complex Data Scenarios

• Consuming REST APIs within .NET MAUI
• Utilizing HTTP clients for asynchronous data access
• JSON serialization and deserialization processes
• Robust error handling and retry strategies
• Local data persistence mechanisms
• Using SQLite and local databases
• Implementing Repository patterns for data access
• Designing offline-first applications
• Synchronizing local and remote data sources
• Strategies for conflict resolution
• Caching mechanisms and cache invalidation
• Exercise: Implement an offline-capable, data-driven application

8. Performance Tuning and Optimization

• Identifying and resolving performance bottlenecks
• Optimizing application startup times
• Efficient memory management and resource usage
• Minimizing unnecessary UI updates
• Optimizing bindings and collection rendering performance
• Efficient image loading and caching strategies
• Asynchronous programming to avoid UI-thread blocking
• Implementing background processing tasks
• 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 complex cross-platform applications
• Using breakpoints, watches, and exception handling effectively
• Diagnosing UI rendering and lifecycle issues
• Implementing logging and structured diagnostics
• Leveraging .NET diagnostics and profiling tools
• Performing CPU and memory profiling
• Detecting and resolving memory leaks
• Investigating slow UI rendering causes
• Debugging platform-specific quirks and 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

• Selecting an appropriate application architecture
• Applying Clean Architecture concepts
• Implementing layered architecture
• Ensuring separation of UI, business logic, and data access
• Using Repository and Service abstractions
• Applying SOLID principles in MAUI applications
• Effective management of application state
• Feature-based project organization
• Designing modular applications
• Considerations for scalability and maintainability
• Exercise: Design the architecture for a production-scale MAUI application

11. Advanced Testing Strategies

• Unit testing ViewModels and services
• Testing business logic independently from the UI
• Effective mocking of dependencies
• Testing asynchronous code flows
• Testing navigation flows and application state
• Concepts of UI and integration testing
• Designing a testable application architecture
• Considerations for continuous integration pipelines
• Exercise: Create a comprehensive test suite for a MAUI application

12. Security in .NET MAUI Applications

• Designing secure application architectures
• Secure storage of sensitive information
• Implementing authentication and authorization flows
• Managing tokens securely
• Addressing API security considerations
• Protecting locally stored data
• Ensuring secure communication with backend services
• Handling credentials and secrets appropriately
• Mitigating common mobile application security risks
• Exercise: Implement secure authentication and credential storage

13. Application Deployment and Distribution

• Building applications for diverse target platforms
• Managing Release versus Debug configurations
• Application signing and certificate management
• Android application packaging standards
• iOS application deployment concepts
• Windows application packaging methods
• Versioning and release management workflows
• Environment-specific configuration strategies
• 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 significant changes
• New controls, APIs, and development capabilities
• Enhancements to handlers and platform integration
• Visual Studio tooling and productivity features
• Adopting 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 overall architecture
• Designing the MVVM structure
• Configuring dependency injection mechanisms
• Implementing reusable UI components
• Connecting to remote and local data sources
• Adding caching and synchronization logic
• Implementing validation and robust error handling
• Applying key performance optimizations
• Incorporating security and authentication features
• Testing critical application functionality
• Preparing the application for final deployment

16. Summary and Next Steps

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