可以通过以下代码示例解决此问题：

1. 创建一个包含DataStore的viewmodel

class MyViewModel(application: Application) : AndroidViewModel(application) {

// Initialize DataStore
private val dataStore = application.applicationContext.createDataStore(
    name = "my_preferences"
)

// Get the preference value from DataStore
val myPreferenceFlow: Flow = dataStore.data
    .catch { exception ->
        // DataStore throws an exception if an error occurs
        if (exception is IOException) {
            emit(emptyPreferences())
        } else {
            throw exception
        }
    }
    .map { preferences ->
        preferences[MY_PREFERENCE_KEY] ?: ""
    }

}

2. 在Activity/Fragment中使用此viewmodel并观察值变化

class MyActivity : AppCompatActivity() {

private lateinit var viewModel: MyViewModel

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.my_activity)

    // Initialize viewModel
    viewModel = ViewModelProvider(this).get(MyViewModel::class.java)

    // Observe the changes in myPreferenceFlow
    lifecycleScope.launch {
        viewModel.myPreferenceFlow.collect { value ->
            // Do something with the value
            Log.d("MyPreference", "Value = $value")
        }
    }
}

}

这样就可以获得DataStore的动态更新值并且不会遇到“Android Preferences DataStore Flow Doesn't Emit Same Value”的问题。