PreferenceDialogFragmentCompat
abstract class PreferenceDialogFragmentCompat : DialogFragment, DialogInterface.OnClickListener(source)
Abstract base class which presents a dialog associated with a DialogPreference. Since the preference object may not be available during fragment re-creation, the necessary information for displaying the dialog is read once during the initial call to onCreate and saved/restored in the saved instance state. Custom subclasses should also follow this pattern.