SampleApplication.java

public class SampleApplication extends DaggerApplication {
  
    @Inject
    WorkManagerWorkFactory customWorkerFactory; // Field injection of our custom worker factory class
  
    @Override
    protected AndroidInjector<? extends DaggerApplication> applicationInjector() {
        AppComponent component = DaggerAppComponent.builder().application(this).build();
        component.inject(this);
        return component;
    }
  
    @Override
    public void onCreate() {
        super.onCreate();
      
        // INit our worker manager
        WorkManager.initialize(this, new Configuration.Builder().setWorkerFactory(customWorkerFactory).build());
    }
}