android seek bar customization,

Question

I need to customize a seek bar in such a way that, at pre determined time say , 30sec, I should have a dot on the seek bar. This duration varies for each and every video, so

Answer 1

The above answer is completely correct but the onDraw method could have been improved a little.

        @Override
        protected synchronized void onDraw(final Canvas canvas) {
            super.onDraw(canvas);

            final float width=getMeasuredWidth()-getPaddingLeft()-getPaddingRight();
            final float step=width/(float)(getMax());

            if (null != mDotsPositions && 0 != mDotsPositions.length && null != mDotBitmap) {
                // draw dots if we have ones
                for (int position : mDotsPositions) {
                    canvas.drawBitmap(mDotBitmap, position * step, 0, null);
                }
            }
        }