anotherim/src/main/res/layout/activity_trust_keys.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
                android:background="@color/grey200" >
    <ScrollView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_above="@+id/button_bar"
        android:layout_alignParentTop="true" >

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

            <LinearLayout
                android:id="@+id/own_keys_card"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="@dimen/activity_horizontal_margin"
                android:layout_marginRight="@dimen/activity_horizontal_margin"
                android:layout_marginTop="@dimen/activity_vertical_margin"
                android:layout_marginBottom="@dimen/activity_vertical_margin"
                android:background="@drawable/infocard_border"
                android:orientation="vertical"
                android:padding="@dimen/infocard_padding"
                android:visibility="gone">

                <TextView
                    android:id="@+id/own_keys_title"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textColor="@color/black87"
                    android:textSize="?attr/TextSizeHeadline"
                    android:textStyle="bold"/>

                <LinearLayout
                    android:id="@+id/own_keys_details"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content"
                    android:divider="?android:dividerHorizontal"
                    android:showDividers="middle"
                    android:orientation="vertical">
                </LinearLayout>

            </LinearLayout>

            <LinearLayout
                android:id="@+id/foreign_keys_card"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_marginLeft="@dimen/activity_horizontal_margin"
                android:layout_marginRight="@dimen/activity_horizontal_margin"
                android:layout_marginTop="@dimen/activity_vertical_margin"
                android:layout_marginBottom="@dimen/activity_vertical_margin"
                android:background="@drawable/infocard_border"
                android:orientation="vertical"
                android:padding="@dimen/infocard_padding"
                android:visibility="gone">

                <TextView
                    android:id="@+id/foreign_keys_title"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textColor="@color/black87"
                    android:textSize="?attr/TextSizeHeadline"
                    android:textStyle="bold"/>

                <LinearLayout
                    android:id="@+id/foreign_keys_details"
                    android:layout_width="fill_parent"
                    android:layout_height="wrap_content"
                    android:divider="?android:dividerHorizontal"
                    android:showDividers="middle"
                    android:orientation="vertical">
                </LinearLayout>

            </LinearLayout>

        </LinearLayout>
    </ScrollView>
    <LinearLayout
        android:id="@+id/button_bar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentStart="true"
        android:layout_alignParentEnd="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true" >

        <Button
            android:id="@+id/cancel_button"
            style="?android:attr/borderlessButtonStyle"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="@string/cancel"
            android:textColor="@color/black87" />

        <View
            android:layout_width="1dp"
            android:layout_height="fill_parent"
            android:layout_marginBottom="7dp"
            android:layout_marginTop="7dp"
            android:background="@color/black12" />

        <Button
            android:id="@+id/save_button"
            style="?android:attr/borderlessButtonStyle"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:enabled="true"
            android:textColor="@color/black54"
            android:text="@string/done"/>
    </LinearLayout>
</RelativeLayout>