maui-dependency-injection

Configure dependency injection in .NET MAUI by registering services, view models, and pages in MauiProgram, enabling automatic resolution via Shell navigation. Apply lifetime management and constructor injection to wire view models to pages during navigation.

Manage service lifetimes in a MAUI app by applying Singleton, Transient, and Scoped registrations in MauiProgram. Select Singleton for stateful app-wide services, Transient for lightweight stateless components, and Scoped for context-bound operations.

Register platform-specific services in MauiProgram by wiring builder.Services to concrete implementations. Apply conditional registrations and an interface-first approach to ensure platform-specific dependencies resolve correctly while maintaining testability.

Dependency injection in MAUI supports testing by adopting an interface-first pattern for service registration. Register interfaces rather than concrete implementations to substitute dependencies with mocks during unit testing.

MAUI Shell navigation fails to resolve view model dependencies when services are not explicitly registered in MauiProgram or lack proper lifetime configuration. Ensure constructor injection requirements are fully wired before invoking Shell navigation.