findpreference undefined type

问题

I am trying to set a value to a ListPreference and always get the error message:

The method findPreference(String) is undefined for the type new DialogInterface.OnClickListener(){}

This is my code:

ListPreference lp = (ListPreference) findPreference("enableTranslations");
lp.setValue("");

Thanks

回答1:

You simply call findPreference in wrong place (in OnClickListener).

Call it in method of class that has findPreference method (PreferenceManager or PreferenceActivity) or on object of such type.

来源：https://stackoverflow.com/questions/7569048/findpreference-undefined-type