k-9/res/layout/message_view.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <com.fsck.k9.activity.ToggleScrollView
        android:id="@+id/top_view"
        android:layout_width="fill_parent"
        android:layout_height="0dip"
        android:layout_weight="1"
        android:scrollbarStyle="outsideInset"
        android:fillViewport="true"
        android:background="@android:color/transparent"
        android:fadingEdge="none">
        <LinearLayout
            android:orientation="vertical"
            android:layout_width="fill_parent"
            android:background="@android:color/transparent"
            android:layout_height="0dip"
            android:layout_weight="1">
            <include layout="@layout/message_view_header" />
            <View
                android:layout_width="fill_parent"
                android:layout_height="0dip"
                android:layout_weight="1" />
            <LinearLayout
                android:id="@+id/extra_buttons"
                android:orientation="horizontal"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:gravity="center_vertical">
                <Button
                    android:id="@+id/reply"
                    android:text="@string/reply_action"
                    android:layout_height="wrap_content"
                    android:layout_width="0dip"
                    android:layout_weight="1" />
                <Button
                    android:id="@+id/reply_all"
                    android:text="@string/reply_all_action"
                    android:layout_height="wrap_content"
                    android:layout_width="0dip"
                    android:layout_weight="1" />
                <Button
                    android:id="@+id/forward"
                    android:text="@string/forward_action"
                    android:layout_height="wrap_content"
                    android:layout_width="0dip"
                    android:layout_weight="1" />
            </LinearLayout>
            <LinearLayout
                android:id="@+id/scrolling_move_buttons"
                android:orientation="horizontal"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:gravity="center_vertical">
                <Button
                    android:id="@+id/archive_scrolling"
                    android:text="@string/message_view_archive_action"
                    android:layout_height="wrap_content"
                    android:layout_width="0dip"
                    android:layout_weight="1" />

                <Button
                    android:id="@+id/move_scrolling"
                    android:text="@string/message_view_move_action"
                    android:layout_height="wrap_content"
                    android:layout_width="0dip"
                    android:layout_weight="1" />

                <Button
                    android:id="@+id/spam_scrolling"
                    android:text="@string/message_view_spam_action"
                    android:layout_height="wrap_content"
                    android:layout_width="0dip"
                    android:layout_weight="1" />
            </LinearLayout>
            <LinearLayout
                android:id="@+id/scrolling_buttons"
                android:orientation="horizontal"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:gravity="center_vertical">
                <Button
                    android:id="@+id/previous_scrolling"
                    android:text="@string/message_view_prev_action"
                    android:contentDescription="@string/previous_action"
                    android:textSize="35dip"
                    android:padding="0dip"
                    android:layout_height="wrap_content"
                    android:layout_width="0dip"
                    android:layout_weight="1" />

                <ImageButton
                    android:id="@+id/delete_scrolling"
                    android:layout_height="wrap_content"
                    android:src="@drawable/ic_button_delete"
                    android:layout_width="0dip"
                    android:layout_weight="1" />
               <Button
                    android:id="@+id/next_scrolling"
                    android:padding="0dip"
                    android:text="@string/message_view_next_action"
                    android:textSize="35dip"
                    android:layout_height="wrap_content"
                    android:layout_width="0dip"
                    android:layout_weight="1" />
            </LinearLayout>
        </LinearLayout>
    </com.fsck.k9.activity.ToggleScrollView>
    <LinearLayout
        android:id="@+id/move_buttons"
        android:orientation="horizontal"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:paddingRight="6dip"
        android:background="@android:color/transparent"
        android:gravity="center_vertical">
        <Button
            android:id="@+id/archive"
            android:text="@string/message_view_archive_action"
            android:layout_height="wrap_content"
            android:layout_width="0dip"
            android:layout_weight="1" />

        <Button
            android:id="@+id/move"
            android:text="@string/message_view_move_action"
            android:layout_height="wrap_content"
            android:layout_width="0dip"
            android:layout_weight="1" />

        <Button
            android:id="@+id/spam"
            android:text="@string/message_view_spam_action"
            android:layout_height="wrap_content"
            android:layout_width="0dip"
            android:layout_weight="1" />
    </LinearLayout>
    <LinearLayout
        android:id="@+id/bottom_buttons"
        android:orientation="horizontal"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:paddingRight="6dip"
        android:background="@android:color/transparent"
        android:gravity="center_vertical">
        <Button
            android:id="@+id/previous"
            android:text="@string/message_view_prev_action"
            android:contentDescription="@string/previous_action"
            android:textSize="35dip"
            android:padding="0dip"
            android:layout_height="wrap_content"
            android:layout_width="0dip"
            android:layout_weight="1" />

        <ImageButton
            android:id="@+id/delete"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_button_delete"
            android:textSize="0dip"
            android:layout_width="0dip"
            android:layout_weight="1" />
       <Button
            android:id="@+id/next"
            android:text="@string/message_view_next_action"
            android:contentDescription="@string/next_action"
            android:textSize="35dip"
            android:padding="0dip"
            android:layout_height="wrap_content"
            android:layout_width="0dip"
            android:layout_weight="1" />
    </LinearLayout>
</LinearLayout>