CoroutineDispatcher 注入时 Hilt 构建失败

Question

不确定为什么构建失败。一切似乎都在检查中

class MapObjectRepositoryIMPL @Inject constructor(
    @ApplicationContext context : Context,
    val mapObjectDao: MapObjectDao,
    val barrechatNetwork: BarreNetwork,
    @DefaultDispatcher private val defaultScope: CoroutineContext
) : MapObjectRepository {

@Module
@InstallIn(ApplicationComponent::class)
object DispatcherModule {

    @DefaultDispatcher
    @Provides
    fun providesDefaultDispatcher(): CoroutineDispatcher = Dispatchers.Default

    @IoDispatcher
    @Provides
    fun providesIoDispatcher(): CoroutineDispatcher = Dispatchers.IO

    @MainDispatcher
    @Provides
    fun providesMainDispatcher(): CoroutineDispatcher = Dispatchers.Main
}

@Qualifier
@Retention(AnnotationRetention.BINARY)
annotation class IoDispatcher

@Qualifier
@Retention(AnnotationRetention.BINARY)
annotation class MainDispatcher

@Qualifier
@Retention(AnnotationRetention.BINARY)
annotation class DefaultDispatcher

我得到的错误是这样的，但看起来我正确地提供了所有东西，限定符和对存储库类的注入，这很奇怪......

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 4.7.1C:\Users\Anon\AndroidStudioProjects\Barrechat192\app\build\generated\source\kapt\debug\com\example\barrechat192\BarreApp_HiltComponents.java:163: error: [Dagger/MissingBinding] @com.example.barrechat192.di.DefaultDispatcher kotlin.coroutines.CoroutineContext cannot be provided without an @Provides-annotated method.
  public abstract static class ApplicationC implements BarreApp_GeneratedInjector,
                         ^
      @com.example.barrechat192.di.DefaultDispatcher kotlin.coroutines.CoroutineContext is injected at
          com.example.barrechat192.data.repositories.IMPL.MapObjectRepositoryIMPL(�, defaultScope)
      com.example.barrechat192.data.repositories.IMPL.MapObjectRepositoryIMPL is injected at
          com.example.barrechat192.di.RepositoryModule.bindMapObjectRepository(mapObjectRepositoryIMPL)
      javax.inject.Provider<com.example.barrechat192.data.repositories.MapObjectRepository> is injected at
          com.example.barrechat192.ui.activities.mainactivity.barremap.BarreMapViewModel_AssistedFactory(�, mapObjectRepository)
      com.example.barrechat192.ui.activities.mainactivity.barremap.BarreMapViewModel_AssistedFactory is injected at
          com.example.barrechat192.ui.activities.mainactivity.barremap.BarreMapViewModel_HiltModule.bind(factory)
      java.util.Map<java.lang.String,javax.inject.Provider<androidx.hilt.lifecycle.ViewModelAssistedFactory<? extends androidx.lifecycle.ViewModel>>> is injected at
          androidx.hilt.lifecycle.ViewModelFactoryModules.ActivityModule.provideFactory(�, viewModelFactories)
      @dagger.hilt.android.internal.lifecycle.DefaultActivityViewModelFactory java.util.Set<androidx.lifecycle.ViewModelProvider.Factory> is requested at
          dagger.hilt.android.internal.lifecycle.DefaultViewModelFactories.ActivityEntryPoint.getActivityViewModelFactory() [com.example.barrechat192.BarreApp_HiltComponents.ApplicationC ? com.example.barrechat192.BarreApp_HiltComponents.ActivityRetainedC ? com.example.barrechat192.BarreApp_HiltComponents.ActivityC]
  The following other entry points also depend on it:
      dagger.hilt.android.internal.lifecycle.DefaultViewModelFactories.FragmentEntryPoint.getFragmentViewModelFactory() [com.example.barrechat192.BarreApp_HiltComponents.ApplicationC ? com.example.barrechat192.BarreApp_HiltComponents.ActivityRetainedC ? com.example.barrechat192.BarreApp_HiltComponents.ActivityC ? com.example.barrechat192.BarreApp_HiltComponents.FragmentC][WARN] Incremental annotation processing requested, but support is disabled because the following processors are not incremental: androidx.room.RoomProcessor (DYNAMIC).

Answer 1

我刚刚对此进行了测试，问题出在这一行：

@DefaultDispatcher private val defaultScope: CoroutineContext

将CoroutineContext 类型替换为CoroutineDispatcher，它将按预期工作。