我是 Hilt(和匕首)的新手,我不确定标题是否真的是我的问题,但它是一个起点,
我正在尝试在回收器视图适配器上使用 hilt,它需要 4 个东西:一个接口、glide(图像加载器)、一个我拥有的类型类和一个字符串标识符,我为它设置了组件和模块并添加了一个标识符的生成器,这似乎可以工作,因为我可以注释适配器构造函数并且它可以编译,但是我需要访问我的片段中的适配器,所以我想我可以用 @Inject 注释适配器字段但是当我添加它时失败(下面的错误),所以这是我的片段的片段
@AndroidEntryPoint
public class CardHolderFragment extends Fragment implements ItemTouchListener,
SwipeRefreshLayout.OnRefreshListener {
@Inject
public CardAdapter cardAdapter;
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
DaggerCardAdapterComponent.builder()
.cardAdapterDependencies(() -> layoutIdentifier)
.build()
.inject(this);
DaggerSentenceViewModelComponent.builder()
.context(getActivity())
.appDependencies(() -> args)
.build()
.inject(this);
我得到的错误是
/Users/martinseal/StudioProjects/SimpleAAC/app/src/main/java/com/xxx/SentenceViewModelComponent.java:14:
error: [Dagger/MissingBinding]
com.xxx.ItemTouchListener cannot be provided without an @Provides-annotated method.
public interface SentenceViewModelComponent {
^
com.xxx.ItemTouchListener is injected at
com.xxx.CardAdapter(onItemTouchListener, …)
com.xxx.CardAdapter is injected at
com.xxx.CardHolderFragment.cardAdapter
com.xxx.CardHolderFragment is injected at
com.xxx.SentenceViewModelComponent.inject(com.xxx.CardHolderFragment)
/Users/martinseal/StudioProjects/SimpleAAC/app/src/main/java/
com/xxx/CardAdapterComponent.java:13: error:
[Dagger/MissingBinding] java.lang.String cannot be provided without an @Inject constructor or an @Provides-annotated method.
所以我可以看到它告诉我它没有为 SentenceViewModelComponent 和 CardAdapterComponent 的 ItemTouchListener 提供方法(我确实添加但无济于事)存在问题,但为什么它们会在这个依赖图中相关?它们都被注入到同一个 CardHolderFragment 中,这是我的 CardAdapterComponent:
@Singleton
@Component(dependencies = CardAdapterDependencies.class, modules = {TypeFactoryModule.class, ItemTouchListenerModule.class, GlideModule.class})
public interface CardAdapterComponent {
void inject(CardHolderFragment cardHolderFragment);
@Component.Builder
interface Builder {
Builder cardAdapterDependencies(CardAdapterDependencies cardAdapterDependencies);
CardAdapterComponent build();
}
}
如您所见,它依赖于某些模块的第一类工厂
@Module
@InstallIn(ActivityComponent.class)
public abstract class TypeFactoryModule {
@Binds
abstract TypeFactory bindTypeFactory(TypeFactoryForList typeFactoryForList);
}
然后项目触摸监听器
@Module
@InstallIn(ActivityComponent.class)
public abstract class ItemTouchListenerModule {
@Binds
abstract ItemTouchListener bindItemTouchListener(CardHolderFragment cardHolderFragment);
}
然后滑行
@Module
@InstallIn(ApplicationComponent.class)
public class GlideModule {
@Singleton
@Provides
public static RequestManager provideGlideRequestManager(@ApplicationContext Context context) {
return Glide.with(context);
}
}
然后是组件的依赖项
@EntryPoint
@InstallIn(ApplicationComponent.class)
public interface CardAdapterDependencies {
@LayoutIdentifier String layoutIdentifier();
}
LayoutIdentifier 是一个具有 RUNTIME 的 RetentionPolicy 的限定符,它限定了我的布局标识符模块
@Module
@InstallIn(ApplicationComponent.class)
public class LayoutIdentifierModule {
@Singleton
@Provides
@LayoutIdentifier
public String provideLayoutIdentifier(){ return Constants.MAIN_IDENTIFIER; };
}
我的 SentenceViewModelComponent 不依赖任何这些
@Singleton
@Component(dependencies = SentenceViewModelDependencies.class)
public interface SentenceViewModelComponent {
void inject(CardHolderFragment cardHolderFragment);
@Component.Builder
interface Builder {
Builder context(@BindsInstance Context context);
Builder appDependencies(SentenceViewModelDependencies sentenceViewModelDependencies);
SentenceViewModelComponent build();
}
}
但确实依赖于 SentenceViewModelDependencies
@EntryPoint
@InstallIn(ApplicationComponent.class)
public interface SentenceViewModelDependencies {
@SentenceTypeAndDescription String[] sentenceTypeAndDescription();
}
它有一个称为 SentenceTypeAndDescription 的限定符,它注释一个模块 SentenceTypeAndDescriptionModule
@Module
@InstallIn(ApplicationComponent.class)
public class SentenceTypeAndDescriptionModule {
@Singleton
@Provides
@SentenceTypeAndDescription
public String[] provideSentenceTypeAndDescription(){ return new String[]{Constants.QUICKS, "PRONOUNS"}; };
}
除了它们都注入了相同的片段之外,我看不到错误是如何相关的,我应该在这里使用的子组件周围是否缺少一些东西?任何帮助,将不胜感激