How to get hardware key option to center of screen

How to get the pause play forward button option to center of the screen in MediaPlayer but by default it shows at the bottom of the screen.

Here i am using videoView in fullscreen

XML:

<RelativeLayout xmlns:android="http://ift.tt/nIICcg"
    xmlns:tools="http://ift.tt/LrGmb4"
    android:layout_width="match_parent"
    android:layout_height="match_parent"


    <VideoView
        android:id="@+id/media_video_preview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentBottom="true"
        android:layout_alignParentEnd="true"

        />
</RelativeLayout>