Advanced .NET MAUI Training Course

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

• .NET MAUI architecture and the application lifecycle.
• Multi-platform project structures and single-project architecture.
• Understanding 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 effectively.
• 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

• Revisiting MVVM principles and the separation of concerns.
• Advanced data binding techniques.
• Compiled bindings and optimizing binding performance.
• Implementing INotifyPropertyChanged and managing observable collections.
• Working with commands, asynchronous commands, and command parameters.
• Leveraging CommunityToolkit.Mvvm and source generators.
• Structuring ViewModels, services, and state management.
• Handling navigation and navigation-aware ViewModels.
• Managing validation and application state.
• Exercise: Develop a multi-page MVVM application featuring validation and asynchronous operations.

3. Dependency Injection and Application Architecture

• Utilizing built-in .NET dependency injection.
• Managing service lifetimes: transient, scoped, and singleton.
• Registering platform-specific and shared services.
• Applying constructor injection and service composition.
• Adhering to dependency inversion and loose coupling principles.
• 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.
• Creating custom handlers and platform-specific implementations.
• Mapping .NET MAUI controls to native platform controls.
• Extending the capabilities of existing controls.
• Designing and creating custom controls.
• Incorporating platform-specific behavior 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 reusable UI components.
• Creating custom controls and ContentViews.
• Applying component parameterization and data binding.
• Developing reusable behaviors and converters.
• Organizing shared application functionality.
• Creating .NET class libraries for MAUI applications.
• Packaging and distributing reusable components.
• Understanding NuGet package fundamentals.
• Exercise: Build a reusable component library.

6. Advanced UI/UX, Layouts, and Animations

• Implementing advanced layouts and responsive UI design.
• Crafting adaptive interfaces for phones, tablets, and desktops.
• Utilizing dynamic resources and styling.
• Managing resource dictionaries and themes.
• Implementing light and dark themes.
• Defining visual states and state-driven UIs.
• Creating advanced animations and transitions.
• Integrating gesture recognition.
• Performing custom drawing and graphics.
• Considering accessibility requirements.
• Exercise: Design a responsive and animated MAUI interface.

7. Handling Complex Data Scenarios

• Consuming REST APIs from .NET MAUI.
• Using HTTP clients and asynchronous data access.
• Managing JSON serialization and deserialization.
• Implementing error handling and retry strategies.
• Ensuring local data persistence.
• Working with SQLite and local databases.
• Applying repository patterns for data access.
• Designing offline-first applications.
• Synchronizing local and remote data.
• Developing conflict resolution strategies.
• Implementing caching and cache invalidation.
• Exercise: Implement an offline-capable data-driven application.

8. Performance Tuning and Optimization

• Identifying performance bottlenecks.
• Optimizing startup time.
• Managing memory and resource usage.
• Reducing unnecessary UI updates.
• Optimizing bindings and collection rendering.
• Enhancing image loading and caching efficiency.
• Utilizing async programming to avoid UI-thread blocking.
• Managing background processing.
• Reducing application size.
• Addressing memory leaks and object lifetimes.
• Exercise: Profile and optimize an intentionally inefficient MAUI application.

9. Advanced Debugging and Profiling Techniques

• Debugging cross-platform applications.
• Using breakpoints, watches, and exception handling.
• Diagnosing UI and lifecycle issues.
• Implementing logging and structured diagnostics.
• Utilizing .NET diagnostics and profiling tools.
• Performing CPU and memory profiling.
• Detecting memory leaks.
• Investigating slow UI rendering.
• Debugging platform-specific issues.
• Leveraging 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.
• Separating UI, business logic, and data access.
• Utilizing repository and service abstractions.
• Applying SOLID principles in MAUI applications.
• Managing application state.
• Organizing projects on a feature-based basis.
• Designing modular applications.
• Considering 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 of the UI.
• Mocking dependencies.
• Testing asynchronous code.
• Validating navigation and application state.
• Understanding UI and integration testing concepts.
• Designing a testable application architecture.
• Considering continuous integration.
• Exercise: Create a test suite for a MAUI application.

12. Security in .NET MAUI Applications

• Designing a secure application architecture.
• Securely storing sensitive information.
• Implementing authentication and authorization.
• Managing tokens.
• Addressing 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.
• Distinguishing between Release and Debug configurations.
• Using application signing and certificates.
• Packaging Android applications.
• Understanding iOS application deployment.
• Packaging Windows applications.
• Managing versioning and releases.
• Configuring environment-specific settings.
• Publishing applications to app stores.
• Considering CI/CD for MAUI projects.
• Exercise: Prepare a MAUI application for production deployment.

14. Latest .NET MAUI and Visual Studio Features

• Reviewing recent .NET MAUI improvements and changes.
• Exploring new controls, APIs, and development capabilities.
• Observing improvements in handlers and platform integration.
• Utilizing Visual Studio tooling and productivity features.
• Adopting modern .NET development practices.
• Evaluating third-party libraries and MAUI Community Toolkit features.
• Considering 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

• Reviewing advanced .NET MAUI concepts.
• Identifying common architectural and performance pitfalls.
• Recommending best development practices.
• Providing further learning resources.
• Planning next steps toward production-ready MAUI development.
• Q&A and discussion of participants' projects.