Android :: Button State Does Not Toggle Automatically

I am trying to get the button in my layout to have focus as I am programmatically changing its state. My application is a video player using VideoView. I am toggling the state of the button based on where my video is. So basically, I am doing videoview.getCurrentPosition() and if it is in a certain window, I want to toggle my Button state (enabled to disabled and vice versa). The layout is LinearLayout and I have the VideoView and Button layed horizontally. When I first had the MediaController in my Video, the button would change focus on touching the videoview (which is when the MediaController would pop up). I later removed the controller because I didn't want the button state to change when the user touches the screen. I want it to change automatically.

I tried all sorts of combinations possible. button.setFocusable(), button.requestFocus(), button.bringToFront() and so on. But none of them seem to work.

Is there any way I can make it toggle programatically and without user intervention through touch? or is it impossible to do it with the VideoView?