session-android/res/xml/preferences_manual_mms.xml

<?xml version="1.0" encoding="utf-8"?>

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
                  xmlns:app="http://schemas.android.com/apk/res-auto">

    <org.thoughtcrime.securesms.components.CustomDefaultPreference
            app:custom_pref_toggle="pref_apn_mmsc_custom_host"
            android:key="pref_apn_mmsc_host"
            android:title="@string/preferences__mmsc_url"
            android:inputType="textUri" />

    <org.thoughtcrime.securesms.components.CustomDefaultPreference
            app:custom_pref_toggle="pref_apn_mms_custom_proxy"
            android:key="pref_apn_mms_proxy"
            android:title="@string/preferences__mms_proxy_host"
            android:inputType="textUri" />

    <org.thoughtcrime.securesms.components.CustomDefaultPreference
            app:custom_pref_toggle="pref_apn_mms_custom_proxy_port"
            android:key="pref_apn_mms_proxy_port"
            android:title="@string/preferences__mms_proxy_port"
            android:inputType="number"/>

    <org.thoughtcrime.securesms.components.CustomDefaultPreference
            app:custom_pref_toggle="pref_apn_mmsc_custom_username"
            android:key="pref_apn_mmsc_username"
            android:title="@string/preferences__mmsc_username"
            android:inputType="textNoSuggestions"/>

    <org.thoughtcrime.securesms.components.CustomDefaultPreference
            app:custom_pref_toggle="pref_apn_mmsc_custom_password"
            android:key="pref_apn_mmsc_password"
            android:title="@string/preferences__mmsc_password"
            android:inputType="textVisiblePassword"/>

</PreferenceScreen>