I'm trying to create a game. Now for some data i need to keep(music, effects, background on/of) i would like to use `preferences`.

I create new `xml` file named `preferences.xml`

```
<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >
    <EditTextPreference android:key="music" android:title="Some title" android:defaultValue="true"/>

</PreferenceScreen>

```

Then i go to the location(with root privileges) and there is only lib folder in `data/data/my.app.folder/`. No `shared_prefs` folder.

When i try to access the preferences it is null. I tried with `getSharedPreferences()` and with `PreferenceManager.getDefaultSharedPreferences()`. What could be the reason? 
Also i don't have activity for the `preferences`, I want to manage them manually.

How can I get over this problem?