Question

我想将MyRepositiry类注入MyPresenter。在这种情况下，如果@Inject PostRepository mRepository;足够，或者我需要这样做，我唯一不明白的事情是：

 public AddPostPresenter(PostRepository postRepository, AddPostContract.View view) {
    this.mRepository = postRepository;
    mView = view;

    mFireBaseApp.getApplicationComponent().inject(this);
}

@Module public class DataModule {

    FireBaseApp mFirebaseApp;

    public DataModule(FireBaseApp fireBaseApp) {
        this.mFirebaseApp = fireBaseApp;
    }

    @Provides
    @Singleton
    FirebaseAuth getFirebaseAuth() {
        return FirebaseAuth.getInstance();
    }

    @Provides
    @Singleton
    FirebaseUser getCurrentUser(FirebaseAuth firebaseAuth) {
        return firebaseAuth.getCurrentUser();
    }

我的组件：

@Singleton @Component(modules = DataModule.class)
    public interface ApplicationComponent {
    void inject(MainActivity mainActivity);
    void inject(PostRepository postRepository);
    void inject(AddPostPresenter addPostPresenter);
    void inject(AddPostActivity addPostActivity);
}

申请类：

    public class FireBaseApp extends Application {

    private ApplicationComponent component;

    @Override
    public void onCreate() {
        super.onCreate();

        if (BuildConfig.DEBUG) {
            Timber.plant(new Timber.DebugTree());
        }

        inject();

    }

    private void inject() {
        component = DaggerApplicationComponent
                .builder()
                .dataModule(new DataModule(this))
                .build();
    }

    public ApplicationComponent getApplicationComponent(){
        return component;
    }
}

存储库：

public class PostRepository implements IPosts {

FireBaseApp fireBaseApp;
DatabaseReference mDatabaseReference;
FirebaseAuth mFirebaseAuth;
FirebaseUser mFirebaseUser;

@Inject public PostRepository() {
    mFirebaseAuth = FirebaseAuth.getInstance();
    mFirebaseUser = mFirebaseAuth.getCurrentUser();
    mDatabaseReference = FirebaseDatabase.getInstance().getReference();
}

最后是演示者：

public class AddPostPresenter implements AddPostContract.UserActionListener {

@Inject PostRepository mRepository;
FireBaseApp mFireBaseApp;

private final AddPostContract.View mView;


public AddPostPresenter(PostRepository postRepository, AddPostContract.View view) {
    this.mRepository = postRepository;
    mView = view;

    mFireBaseApp.getApplicationComponent().inject(this);
}

所以我的问题是我需要在MyPresenter构造函数mFireBaseApp.getApplicationComponent().inject(this);中执行此操作或者使用@Inject的PostRepostory就足够了？ @Inject PostRepository mRepository;

使用Dagger2 Android构造函数依赖注入

0 个答案: