[Q] Track seekbar scrub past markers? - Android Q&A, Help & Troubleshooting

I am currently working on a video player using the VideoView and I am controlling it with the MediaController. There are two things I am currently trying to figure out how to approach and was hoping someone may have some ideas.
The first thing I would like to do is to be able to place markers along the seekbar, such as 25% of the clip. I want to fire an event when this mark is hit or scrubbed past. Throwing an event when this marker is hit with the video playing regularly will be easy because I should be able to just use getCurrentPosition and checking to see if it is 25% of the total clip. The issue I am having is how to fire the event if the user scrubs past the 25% point.
The second thing I am trying to do is just show a visual marker along the seekbar that I can display a marker, lets say at the 25% point, 50% point, etc. Any help or direction would help immensly. Thanks!

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In looking at this a bt more, with regards to tracking when the user scrubs past certain markers, I am thinking that if I can reference the MediaControllers seekbar object and get its ontouch down and up events, then I could perform a calc to see if those points were passed.
The issue I am having now is how I can get access to my subclassed MediaControllers seekbar. Does anyone know if this is possible and if so how to go about getting the id of it?
I currently have extended the MediaController so I could show it on the screen at all times, but havent figured out how to get access to the seekbar object in the MediaController. Any ideas?
Code:
package org.apache.android.media;
import android.content.Context;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.widget.MediaController;
public class VisibleMediaController extends MediaController{
public VisibleMediaController(Context context)
{
super(context);
}
@Override
public void hide()
{
this.show(0);
}
@Override
public void setMediaPlayer(MediaPlayerControl player) {
super.setMediaPlayer(player);
this.show();
}
}