nextcloud-android/res/xml/preferences.xml

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >
	<PreferenceCategory android:title="@string/prefs_category_general">
	    <CheckBoxPreference
        android:key="create_thumbnails"
        android:title="@string/prefs_create_img_thumbnails" 
        />
    
    <ListPreference
        android:key="select_oc_account"
        android:title="@string/prefs_select_oc_account"
        android:summary="@string/prefs_summary_select_oc_account" 
        />
	</PreferenceCategory>
	
	<PreferenceCategory android:title="@string/prefs_category_trackmydevice">
	    <CheckBoxPreference 
	        android:key="enable_devicetracking"
	        android:title="@string/prefs_trackmydevice"
	        android:summaryOff="@string/prefs_trackmydevice_summary_off"
	        android:summaryOn="@string/prefs_trackmydevice_summary_on"
	        android:defaultValue="true"/>
	    
	    <ListPreference 
	        android:key="devicetracking_update_intervall"
	        android:title="@string/prefs_trackmydevice_interval"
	        android:summary="@string/prefs_trackmydevice_interval_summary"
	        android:entries="@array/prefs_trackmydevice_intervall_keys"
	        android:entryValues="@array/prefs_trackmydevice_intervall_values"
	        android:defaultValue="30"
	        android:dependency="enable_devicetracking"/>
	</PreferenceCategory>
    

</PreferenceScreen>