How can I access the @string/... key (instead of value) in XML in Android?

The Goal

In my preferences.xml I would like to store the ID of certain string elements (like) e.g. ...

<string-array name="preference_values">
    <item>@string/nav_start</item>
    <item>@string/nav_overview</item>
    <item>@string/nav_someelse</item>
</string-array>

... meanwhile in xml/pref_general.xml ...

<ListPreference
    android:key="@string/preference_key"
    android:entryValues="@array/preference_values"
    ... />

... where the different strings will be localized:

<string name="nav_start">Startbildschirm</string>
<string name="nav_overview">Übersicht</string>
<string name="nav_someelse">Sonstige</string>

Since I don't want to store the localized strings (as these xml definitions do right now), but rather their integer keys, I would really like to know if there is a way of doing this.

This would make the preferences still available after a language change for example.

More Background

I really like being able to access/compare resources in code, which are not subjective to typos or name changes (or at least the IDE checks/handles those for you) e.g.:

switch( getMyPreferenceAsInt(R.string.preferenece_key) ) {

    case R.string.nav_start:    doSome();     break;
    case R.string.nav_someelse: doSomeElse(); break;
    ...
}

I use something similar for my NavigationDrawer, and find it really nice to work with. This is also where does string values actually come from (it's like a "default start page" preference).

<string-array name="navigation_keys">
    <item>@string/nav_start</item>
    <item>@string/nav_overview</item>
    <item>@string/nav_someelse</item>
    ...
</string-array>

But at least here I am able to get the keys with obtainTypedArray(...):

void onCreate(Bundle savedInstanceState) {
    ...
    mNavKeys = getResources().obtainTypedArray(R.array.navigation_keys);
}

void onNavigationDrawerItemSelected(int position) {

    Fragment fragment;
    int selectedResource = mNavKeys.getResourceId(position, R.string.nav_default);

    if (selectedResource == R.string.nav_start) {
        fragment = FancyStartFragment.newinstance();
    }
    else {
        fragment = ...;
    }

    // Fancy methods to do a fragment transaction
    ...
}