urban-explorer/app/src/main/res/xml/urban_expl_settings.xml

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">

    <PreferenceCategory
        android:title="Panoramio search settings"
        android:key="pref_panoramio_settings">

        <EditTextPreference
                android:key="pref_panoramio_radiusx"
                android:title="Radius X"
                android:summary="Radius X"
                android:defaultValue="0.05"
                android:inputType="numberDecimal" />

        <EditTextPreference
                android:key="pref_panoramio_radiusy"
                android:title="Radius Y"
                android:summary="Radius Y"
                android:defaultValue="0.05"
                android:inputType="numberDecimal" />

    </PreferenceCategory>

    <PreferenceCategory
            android:title="Wiki search settings"
            android:key="pref_wiki_settings">

        <EditTextPreference
                android:key="pref_wiki_radius"
                android:title="Wiki search radius"
                android:summary="Wiki search radius[km]"
                android:defaultValue="10.0"
                android:inputType="numberDecimal" />

        <EditTextPreference
                android:key="pref_wiki_limit"
                android:title="Wiki search results limit"
                android:summary="Limit of wiki results"
                android:defaultValue="100"
                android:inputType="number" />

    </PreferenceCategory>

    <PreferenceCategory
            android:title="GPS tracking settings"
            android:key="pref_gps_settings">

        <EditTextPreference
                android:key="pref_gps_update_freq"
                android:title="GPS update frequency"
                android:summary="Update time of GPS location in minutes"
                android:defaultValue="15.0"
                android:inputType="numberDecimal" />

        <EditTextPreference
                android:key="pref_gps_distance_freq"
                android:title="GPS distance frequency"
                android:summary="Update distance of GPS location in meters"
                android:defaultValue="100.0"
                android:inputType="numberDecimal" />


    </PreferenceCategory>

</PreferenceScreen>