[android] How to make a vertical SeekBar in Android?

Here is a very good implementation of vertical seekbar. Have a look.

http://560b.sakura.ne.jp/android/VerticalSlidebarExample.zip

And Here is my own implementation for Vertical and Inverted Seekbar based on this

https://github.com/AndroSelva/Vertical-SeekBar-Android

protected void onDraw(Canvas c) {
    c.rotate(-90);
    c.translate(-getHeight(),0);

    super.onDraw(c);
}

@Override
public boolean onTouchEvent(MotionEvent event) {
    if (!isEnabled()) {
        return false;
    }

    switch (event.getAction()) {
        case MotionEvent.ACTION_DOWN:
        case MotionEvent.ACTION_MOVE:
        case MotionEvent.ACTION_UP:
            int i=0;
            i=getMax() - (int) (getMax() * event.getY() / getHeight());
            setProgress(i);
            Log.i("Progress",getProgress()+"");
            onSizeChanged(getWidth(), getHeight(), 0, 0);
            break;

        case MotionEvent.ACTION_CANCEL:
            break;
    }
    return true;
}