Using Hilt to manage dependencies

In this section, we will discuss the Hilt DI library, how we can use it in an Android application, and the extra features it provides on top of the Dagger 2 library.

Hilt is a library built on top of Dagger 2 with a specific focus on Android applications. This is to remove the extra boilerplate code that was required to use Dagger 2 in an application. Hilt removes the need to use @Component and @Subcomponent annotated classes and in turn offers new annotations:

• When injecting dependencies in Android classes, we can use @HiltAndroidApp for Application classes, @AndroidEntryPoint for activities, fragments, services, broadcast receivers, and views, and @HiltViewModel for ViewModels.
• When using the @Module annotation, we now have the option to use @InstallIn and specify an @DefineComponent annotated class, which represents the component the module will be added to. Hilt provides a set of useful components to install modules in:
  • @SingletonComponent...