How do Dagger and Toothpick libraries differ in dependency injection implementation?

Dagger and Toothpick are libraries for dependency injection (DI) in Android, but they differ in approach and architecture.

• Dagger is a static DI framework that generates code at compile time. This ensures high performance and no reflection at runtime. Dagger requires explicit description of the dependency graph through annotations like @Module, @Component, etc. It is more strict and complex to set up but efficient in speed and memory.

• Toothpick is a runtime DI framework that uses reflection to create and connect dependencies at runtime. It is easier to use and more flexible but may have slight performance overhead due to reflection.

In brief:

Characteristic	Dagger	Toothpick
Binding time	Compile time (static code)	Runtime (reflection)
Performance	High	Lower, due to reflection
Setup complexity	Higher	Lower
Flexibility	Less	More

The choice depends on project requirements: if maximum performance and control are important — Dagger, if simplicity and flexibility are needed — Toothpick.