How to use shared Preference values in Viewmodel-CodePudding

I'm saving value of the current locale into SharedPreferences,

viewmodel's data should be changed by current locale, so I have to use SharedPreferences..

private fun getPreferences(context: Context): SharedPreferences {
    return context.getSharedPreferences(PREFERENCES_NAME, Context.MODE_PRIVATE)
}

this code needs context , I don't know how can I use SharedPreferences in Viewmodel..

CodePudding user response：

Your ViewModel class should be extend by AndroidViewModel.

after that call getApplication() and use it as context when accessing SharedPreferences.

public class YourViewModel extends AndroidViewModel {

   SharedPreferences sharedpreferences = getApplication().getSharedPreferences("pref_key", Context.MODE_PRIVATE);

   String varName = sharedpreferences.getString("var_name", "")

}