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我正在尝试将我的项目迁移到Dagger Hilt并面临缺少绑定的问题。我正在关注谷歌的代码实验室来实现这一点。

这是构建失败的地方：

error: [Dagger/MissingBinding] java.util.Map<java.lang.String,javax.inject.Provider<dagger.android.AndroidInjector.Factory<?>>> cannot be provided without an @Provides-annotated method.
  public abstract static class ApplicationC implements WhatToCookApp_GeneratedInjector,
                         ^
      java.util.Map<java.lang.String,javax.inject.Provider<dagger.android.AndroidInjector.Factory<?>>> is injected at
          dagger.android.DispatchingAndroidInjector(�, injectorFactoriesWithStringKeys)
      dagger.android.DispatchingAndroidInjector<java.lang.Object> is injected at
          dagger.android.support.DaggerAppCompatActivity.androidInjector
      at.bwappsandmore.whattocook.MainActivity is injected at
          dagger.android.AndroidInjector.inject(T) [at.bwappsandmore.whattocook.WhatToCookApp_HiltComponents.ApplicationC ? at.bwappsandmore.whattocook.di.ActivityModule_InjectMainActivity.MainActivitySubcomponent]
  It is also requested at:
      dagger.android.DispatchingAndroidInjector(�, injectorFactoriesWithStringKeys)
  The following other entry points also depend on it:

这些是项目的相关部分：

@HiltAndroidApp
open class WhatToCookApp : Application() {

    val appComponent: AppComponent by lazy {
        initializeComponent()
    }
    open fun initializeComponent(): AppComponent {
        return DaggerAppComponent.factory().create(applicationContext)
    }
}

应用组件：

@Singleton
@Component(
    modules = [AppModule::class,
        ActivityModule::class,
        AndroidSupportInjectionModule::class]
)

interface AppComponent : AndroidInjector<WhatToCookApp> {
    @Component.Factory
    interface Factory {
        fun create(@BindsInstance appContext: Context): AppComponent
    }
}

应用模块：

@InstallIn(ApplicationComponent::class)
@Module
class AppModule {

    @Provides
    fun provideDB(@ApplicationContext context: Context): AppDatabase {
        return AppDatabase.getDatabase(context)
    }

    @Provides
    fun provideDAO(app: AppDatabase): WhatToCookDao {
        return app.whatToCookDao()
    }

    @Provides
    fun provideAppRepository(dao: WhatToCookDao): AppRepository{
        return AppRepository(dao)
    }

    @Provides
    fun provideSharedPreferences(@ApplicationContext context: Context): SharedPreferences {
        return PreferenceManager.getDefaultSharedPreferences(context)
    }
}

应用模块：

@InstallIn(ApplicationComponent::class)
@Module
interface ActivityModule {
    @ActivityScope
    @ContributesAndroidInjector(modules = [ViewModelModule::class])
    fun injectMainActivity(): MainActivity
}

视图模型模块：

@InstallIn(ApplicationComponent::class)
@Module
abstract class ViewModelModule {
    companion object{
        @Provides
        fun providesSharedViewModel (activity: MainActivity) : SharedViewModel = activity.viewModel
    }
}

活动范围：

@Scope
@Retention(AnnotationRetention.RUNTIME)
annotation class ActivityScope

我意识到我必须使用@Provides注释AndroidInjector，但我不知道在哪里以及如何。任何帮助表示赞赏。

非常感谢你。

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