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

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:padding="8dp"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

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

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:paddingBottom="3dip" >

        <Button
            android:id="@+id/api_app_settings_revoke"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="@string/api_settings_revoke" />

        <Button
            android:id="@+id/api_app_settings_save"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="@string/api_settings_save" />
    </LinearLayout>

</LinearLayout>