problems with getting value from SharedPreferences

i have this code i call from a service.

   prefs = getSharedPreferences(homeConfigure.APP_PREF_NAME, Context.MODE_PRIVATE);
   city = prefs.getString(CITY + appWidgetId,"nothing");

it returns the correct value stored. but subsequent calls to the service through an AlarmManager in the service class returns the value "nothing".

what could be wrong?

i save them in the homeConfigure activity like this:

city = cityText.getText().toString();    
Editor editor = prefs.edit();   
editor.p开发者_开发百科utString(CITY + appWidgetId,city);  
editor.commit();

and the appwidget is obtained from an intent in the onCreate() of the configuration class when the widget is first added:

appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID,AppWidgetManager.INVALID_APPWIDGET_ID);

Try using getDefaultPreferences(context) instead.