How can a PreferenceActivity use a custom preference file

Question

My first attempt at preferences was without knowledge of PreferenceActivity. So now I have an app that stores all user preferences in a specific preference file.

Answer 1

It may be too late to post this but you can find a nice solution here

• How to make PreferenceActivity use non-default SharedPreferences

You set the name of the default shared preferences file beforehand like this:

public class MyPreferencesActivity extends PreferenceActivity {
    protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

         PreferenceManager prefMgr = getPreferenceManager();
         prefMgr.setSharedPreferencesName("my_preferences");
         prefMgr.setSharedPreferencesMode(MODE_WORLD_READABLE);

         addPreferencesFromResource(R.xml.preferences);
    }
}

I hope this helps somebody.

Regards.