Android：使用依赖项 ViewModelProviderFactory 初始化 ViewModel 的正确方法

我有两个ViewModels，它们依赖于其他对象，而这些对象又可能依赖于context(SettingsDataStore).现在，为了将context排除在我的视图模型之外，我遵循inversion of control原则.

我的代码如下所示:

// MainActivity.kt
private val Context.dataStore by preferencesDataStore(name = "settings")
val newsRepository = NewsRepository()
val newsDetailViewModel = NewsDetailViewModel()

lateinit var newsViewModel: NewsViewModel
lateinit var settingsViewModel: SettingsViewModel


@Composable
fun Navigation() {
    val context = LocalContext.current
    val settingsDataStore = SettingsDataStore(context.dataStore)

    if (!::settingsViewModel.isInitialized) {
        settingsViewModel = viewModel(initializer = { SettingsViewModel(settingsDataStore) })
    }

    if (!::newsViewModel.isInitialized) {
        newsViewModel =
            viewModel(initializer = { NewsViewModel(newsRepository, settingsDataStore) })
    }
...

如您所见，我在Composable函数中创建了SettingsDataStore，因为我需要访问context.然后，我将使用它们的依赖项构造ViewModels.However, I suspect this kind of injection is faulty because of plenty of reasons -- invalidation of the context and accidental creation of ViewModels if you are not careful comes to mind.

因此，我做了一些研究，发现这篇文章的official docs条推荐使用ViewModelProvider.Factory.不幸的是，我不知道如何使用工厂正确地创建我的NewsViewModel:

class NewsViewModel(
    private val repo: NewsRepository,
    private val settingsDataStore: SettingsDataStore
) : ViewModel() {

    ...
    
    // Define ViewModel factory in a companion object
    companion object {

        val Factory: ViewModelProvider.Factory = object : ViewModelProvider.Factory {
            @Suppress("UNCHECKED_CAST")
            override fun <T : ViewModel> create(
                modelClass: Class<T>,
                extras: CreationExtras
            ): T {
                // Get the Application object from extras
                val application = checkNotNull(extras[ViewModelProvider.AndroidViewModelFactory.APPLICATION_KEY])
                // Create a SavedStateHandle for this ViewModel from extras
                val savedStateHandle = extras.createSavedStateHandle()

                return NewsViewModel(
                    // TODO HOW DO I ACCESS/CREATE THE DEPENDENCIES ??
                ) as T
            }
        }
    }
}

所以我的问题是how do I create my 100 with that factory?我想坚持使用Android文档，而不是使用某种依赖注入框架.

很抱歉问了这么长的问题，但我想要详细说明，因为很多遵循适当MVVM架构的人都会遇到这个问题.