open-keychain/OpenKeychain/src/main/res/layout/certify_fingerprint_activity.xml

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

    <include
        android:id="@+id/toolbar_include"
        layout="@layout/toolbar_standalone_orange" />

    <LinearLayout
        android:layout_below="@id/toolbar_include"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <FrameLayout
            android:id="@+id/content_frame"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <FrameLayout
                android:id="@+id/certify_fingerprint_fragment"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:orientation="vertical" />

        </FrameLayout>

    </LinearLayout>
</RelativeLayout>