Dependency injection (DI) iku pola ing ngendi obyek nrima dependensi-ne saka njaba tinimbang nggawe piyambak — nambah testability, maintainability, lan flexibility. Ing Android, Hilt (dibangun ing Dagger) iku framework DI sing direkomendasikan.
Apa iku DI lan ngapa
WITHOUT DI: a class CREATES its own dependencies (tightly coupled, hard to test/change):
class UserRepo { val api = ApiService() } // creates its own dependency — rigid
WITH DI: dependencies are PROVIDED from outside (injected):
class UserRepo(val api: ApiService) // receives it → flexible, testable
→ Benefits: TESTABILITY (inject mocks/fakes in tests), DECOUPLING, easier to swap
implementations, centralized dependency management, less boilerplate (with a framework).
