public void resetOriginals() {
            mStartingStartTrim = 0;
            mStartingEndTrim = 0;
            mStartingRotation = 0;
            setStartTrim(0);
            setEndTrim(0);
            setRotation(0);
        }
Reset the progress spinner to default rotation, start and end angles.
ptr-lib/src/in/srain/cube/views/ptr/header/MaterialProgressDrawable.java