如果没有 @Provides 注释的方法，则无法提供 android.content.Context

Question

在 hilt 更新到 2.32-alpha 后，我收到以下错误。

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即使提供了相关元素后，它仍然在抱怨。\n我很确定它与范围有关，但无法对其进行排序，日志如下，

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  ^C:\\Users\\VikramSingh\\Desktop\\work\\Mine\\mobiquity\\app\\build\\generated\\source\\kapt\\debug\\reprator\\mobiquity\\MobiQuityApp_HiltComponents.java:145: error: [Dagger/MissingBinding] @dagger.hilt.android.qualifiers.ActivityContext android.content.Context cannot be provided without an @Provides-annotated method.\n public abstract static class SingletonC implements HiltWrapper_ActivityRetainedComponentManager_ActivityRetainedComponentBuilderEntryPoint,\n                     ^\n A binding with matching key exists in component: reprator.mobiquity.MobiQuityApp_HiltComponents.ActivityC\n  @dagger.hilt.android.qualifiers.ActivityContext android.content.Context is injected at\n      reprator.mobiquity.addcity.di.AddCityModule.provideGeoCoder(context)\n  android.location.Geocoder is injected at\n      reprator.mobiquity.addcity.di.AddCityModule.provideReverseGeoCoding(geoCoder)\n  reprator.mobiquity.addcity.ReverseGeoCoding is injected at\n      reprator.mobiquity.addcity.AddLocationViewModal(\xef\xbf\xbd, reverseGeoCoding, \xef\xbf\xbd)\n  reprator.mobiquity.addcity.AddLocationViewModal is injected at\n      reprator.mobiquity.addcity.AddLocationViewModal_HiltModules.BindsModule.binds(arg0)\n  @dagger.hilt.android.internal.lifecycle.HiltViewModelMap java.util.Map<java.lang.String,javax.inject.Provider<androidx.lifecycle.ViewModel>> is requested at\n      dagger.hilt.android.internal.lifecycle.HiltViewModelFactory.ViewModelFactoriesEntryPoint.getHiltViewModelMap() [reprator.mobiquity.MobiQuityApp_HiltComponents.SingletonC ? reprator.mobiquity.MobiQuityApp_HiltComponents.ActivityRetainedC ? reprator.mobiquity.MobiQuityApp_HiltComponents.ViewModelC][WARN] Incremental annotation processing requested, but support is disabled because the following processors are not incremental: androidx.room.RoomProcessor (DYNAMIC).\n

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存储库：https://github.com/TheReprator/mobiquity/tree/hilt_scope_issue

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此致，\n维克拉姆·辛格

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Answer 1

我认为您应该尝试使用@ActivityScopedor注释提供方法@ActivityRetainedScoped，而我在代码中注意到的关于 AddLocationViewModal 的另一件事，我认为您应该使用注释它@HiltViewModel并使其类似于以下代码：

@HiltViewModel
class AddLocationViewModal @Inject constructor(
    private val savedStateHandle: SavedStateHandle,
    private val appCoroutineDispatchers: AppCoroutineDispatchers,
    private val reverseGeoCoding: ReverseGeoCoding,
    private val locationUseCase: LocationUseCase
) : ViewModel() {...}