<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen
        xmlns:android="http://schemas.android.com/apk/res/android">
        
        <ListPreference
                android:key="source_pref"
                android:title="Default Source Language"
                android:defaultValue="No languages installed" />
        
        <ListPreference
                android:key="target_pref"
                android:title="Default Target Language"
                android:defaultValue="No languages installed" />

</PreferenceScreen>