Add custom TitleBar in a PreferenceActivity

Question

I am trying to add a custom TitleBar to my PreferenceActivity. But the application is crashing. PS : it is working for my other Activities.

I have tried all the answers of these 2 questions and it didn't work:

1. Custom title bar in PreferenceActivity?
2. Set custom title bar in PreferenceAcivity

This is one of the tested codes :

@Override
protected void onCreate(Bundle savedInstanceState) {
    requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
    super.onCreate(savedInstanceState);
    addPreferencesFromResource(R.xml.my_pref);
    getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE,
            R.layout.costum_title_bar);

}

Every suggestion is welcome. Thanks for your time and consideration.