我可以在NotificationService中注入我的RepositoryClass

Question

我试图将ToDoRepository注入我的ToDoDeleteNotificationService，并始终将此存储库设为null。我不知道我是否需要更多地执行另一个模块，或者我是否可以在IntentService中执行此操作。

@Module
public class ToDoRepositoryModule {
    @Provides
    @Singleton
    ToDoDatabase provideDatabase(Application application) {
        return Room.databaseBuilder(application,
            ToDoDatabase.class, "ToDo.db")
            .build();
    }

    @Provides
@Singleton
ToDoDao provideUserDao(ToDoDatabase database) {
    return database.toDoDao();
}

@Provides
@Singleton
AppExecutors provideAppExecutors() {
    return new AppExecutors();
}

@Provides
@Singleton
ToDoRepository providesToDoRepository(ToDoDao toDoDao, AppExecutors appExecutors) {
    return new ToDoRepository(toDoDao, appExecutors);
}
}

- 当调用我的类TodoDeleteNotiricationService时，我的todoId byt我的存储库为null

public class ToDoDeleteNotificationService extends IntentService {
@Inject
ToDoRepository mToDoRepository;

public ToDoDeleteNotificationService() {
    super("ToDoDeleteNotificationService");
}

@Override
protected void onHandleIntent(@Nullable Intent intent) {
    assert intent != null;
    String toDoId = intent.getStringExtra(ToDoNotificationsService.TODO_MODEL_KEY);
    mToDoRepository.deleteToDo(toDoId);
}
}

-

@Singleton
@Component(modules = {ToDoRepositoryModule.class,
        ActivityBindingModule.class,
        AppModule.class,
        AndroidSupportInjectionModule.class})
public interface AppComponent extends AndroidInjector<ToDoApplication>{
    ToDoRepository getToDoRepository();

    @Component.Builder
    interface Builder{
        @BindsInstance
        AppComponent.Builder application(Application application);

        AppComponent build();
    }
}