效果

<SwiperindicatorDots={false}previousMargin='50px'nextMargin='50px'autoplay={false}interval='100'onChange={onChangeSwiper}
>{[1,2,3].map((item, index) => {return (<SwiperItemkey={`item-${index}`}><View className={`demo-item ${currentIndex=== index ? 'active' : ''}`}>{ item }</View></SwiperItem>)})}
</Swiper>

const [ currentIndex, setCurrentIndex ] = useState(0)
const onChangeSwiper = (e) => {const idx = e.detail.currentsetCurrentIndex(idx)
}

.demo-item {height: 272px;color: #fff;background: #000;border-radius: 39px;text-align: center;transform: scale(.9);transition: all ease .4s;&.active {transform: scale(1);}
}