open-keychain/OpenPGP-Keychain/res/layout/key_list_secret_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent" >

        <fragment
            android:id="@+id/key_list_secret_fragment"
            android:name="org.sufficientlysecure.keychain.ui.KeyListSecretFragment"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    </FrameLayout>

    <include layout="@layout/drawer_list" />

</android.support.v4.widget.DrawerLayout>