example1 is not working with onScroll

This is a bug report.

	"react": "16.2.0",
	"react-native": "0.52.x",
	"react-native-linear-gradient": "2.4.0",
	"react-native-snap-carousel": "3.8.0"

I have been trying to run example1 code with onScroll like this.

            <Carousel
              ref={c => this._slider1Ref = c}
              data={ENTRIES1}
              renderItem={this._renderItemWithParallax}
              sliderWidth={sliderWidth}
              itemWidth={itemWidth}
              hasParallaxImages={true}
              firstItem={SLIDER_1_FIRST_ITEM}
              inactiveSlideScale={0.5}
              inactiveSlideOpacity={0.5}
              // inactiveSlideShift={20}
              containerCustomStyle={styles.slider}
              contentContainerCustomStyle={styles.sliderContentContainer}
              loop={true}
              loopClonesPerSide={2}
              autoplay={true}
              autoplayDelay={500}
              autoplayInterval={3000}
              onSnapToItem={(index) => this.setState({ slider1ActiveSlide: index }) }
              onScroll={e=>{//----------it's only code I have added.


              }}

            />

I have added empty onScroll prop then snap item seems to change as active or deactivate but not changing opacity and scale.
Please check it and help me how to fix it.

Start by running example1 with the listed React Native and react-native-snap-carousel versions, comparing the carousel with and without an empty onScroll prop. Trace the onScroll behavior and verify that adding the prop does not prevent inactive-slide opacity and scale changes from updating.