@Override
        public void writeToParcel(Parcel out, int flags) {
            super.writeToParcel(out, flags);
            out.writeString(durationInput);
        }
User interface state that is stored by this view for implementing
{@link View#onSaveInstanceState}.
android/third_party/time-duration-picker/src/main/java/mobi/upod/timedurationpicker/TimeDurationPicker.java