如何摆脱 Hilt 的循环编译错误？

Question

这是我的代码。

RemoteConfigRepository

class RemoteConfigRepository
        @Inject constructor(
        val service: RemoteConfigService): Repository {
    suspend fun getConfig(): Response<RemoteConfigResponseBody>
    = service.getConfig()
}

存储库模块

@Module
@InstallIn(ViewModelComponent::class)
object RepositoryModule {
    @Provides
    @ViewModelScoped
    fun provideRemoteConfigRepository(
            repository: RemoteConfigRepository
    ): RemoteConfigRepository {
        return RemoteConfigRepository(BaseService(UrlConstants.REMOTE_CONFIG_BASE_URL).createApi(RemoteConfigService::class.java))
    }
    // ...

}

EntryViewModel

@HiltViewModel
class EntryViewModel
    @Inject constructor(
            private val repository: RemoteConfigRepository,
            private val savedStateHandle: SavedStateHandle
    ): ViewModel() {
    // ...
}

这是 EntryActivity

@AndroidEntryPoint
class EntryActivity : BaseActivity() {
    lateinit var binding: ActivityEntryBinding

    @VisibleForTesting
    private val viewModel by viewModels<EntryViewModel>()

    // ...
}

然后我得到

ANTLR Tool version 4.5.3 used for code generation does not match the current runtime version 4.7.1ANTLR Runtime version 4.5.3 used for parser compilation does not match the current runtime version 4.7.1ANTLR Tool version 4.5.3 used for code generation does not match the current runtime version 4.7.1ANTLR Runtime version 4.5.3 used for parser compilation does not match the current runtime version 4.7.1/Users/user/Documents/Github/my_app/build/generated/source/kapt/debug/com/example/MyApplication_HiltComponents.java:152: error: [Dagger/DependencyCycle] Found a dependency cycle:
  public abstract static class SingletonC implements HiltWrapper_ActivityRetainedComponentManager_ActivityRetainedComponentBuilderEntryPoint,
                         ^
      com.example.repository.RemoteConfigRepository is injected at
          com.example.di.RepositoryModule.provideRemoteConfigRepository(repository)
      com.example.repository.RemoteConfigRepository is injected at
          com.example.ui.entry.EntryViewModel(repository, …)
      com.example.ui.entry.EntryViewModel is injected at
          com.example.ui.entry.EntryViewModel_HiltModules.BindsModule.binds(vm)
      @dagger.hilt.android.internal.lifecycle.HiltViewModelMap java.util.Map<java.lang.String,javax.inject.Provider<androidx.lifecycle.ViewModel>> is requested at
          dagger.hilt.android.internal.lifecycle.HiltViewModelFactory.ViewModelFactoriesEntryPoint.getHiltViewModelMap() [com.example.MyApplication_HiltComponents.SingletonC → com.example.MyApplication_HiltComponents.ActivityRetainedC → com.example.MyApplication_HiltComponents.ViewModelC][WARN] Incremental annotation processing requested, but support is disabled because the following processors are not incremental: androidx.room.RoomProcessor (DYNAMIC).

不知道循环从何而来..

Answer 1

您需要从 provideRemoteConfigRepository 中删除参数：

@Module
@InstallIn(ViewModelComponent::class)
object RepositoryModule {
    @Provides
    @ViewModelScoped
    fun provideRemoteConfigRepository(): RemoteConfigRepository {
        return RemoteConfigRepository(BaseService(UrlConstants.REMOTE_CONFIG_BASE_URL).createApi(RemoteConfigService::class.java))
    }
    // ...

}

Answer 2

为什么您期望 RemoteConfigRepository 而您从该方法返回相同的结果。这导致了循环依赖。它应该是这样的。

@Module
@InstallIn(ViewModelComponent::class)
object RepositoryModule {
    @Provides
    @ViewModelScoped
    fun provideRemoteConfigRepository(
        service: BaseService
    ): RemoteConfigRepository {
        return RemoteConfigRepository(service)
    }

    @Provides
    @ViewModelScoped
    fun provideBaseService(): BaseService {
        return BaseService(UrlConstants.REMOTE_CONFIG_BASE_URL).createApi(RemoteConfigService::class.java)
    }
}

在这种情况下，您可以将 provideBaseService 标记为适当的范围，我认为它应该属于 Singleton 范围。对于第二种方法，您可以这样做，默认情况下 BaseService ViewModelScoped.

@Module
@InstallIn(ViewModelComponent::class)
object RepositoryModule {
@Provides
@ViewModelScoped
fun provideRemoteConfigRepository(): RemoteConfigRepository {
    return RemoteConfigRepository(BaseService(UrlConstants.REMOTE_CONFIG_BASE_URL).createApi(RemoteConfigService::class.java))
}
}

如何摆脱 Hilt 的循环编译错误？

How can I get rid of cycle compile error from Hilt?

android

dependency-injection

dagger-hilt