open-keychain/OpenPGP-Keychain/src/main/res/layout/api_app_settings_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="16dp"
        android:orientation="vertical">

        <fragment
            android:id="@+id/api_app_settings_fragment"
            android:name="org.sufficientlysecure.keychain.service.remote.AppSettingsFragment"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            tools:layout="@layout/api_app_settings_fragment" />

    </LinearLayout>
</ScrollView>