react-native-page-control
import PageControl from 'react-native-page-control';
<PageControl
style={{position:'absolute', left:0, right:0, bottom:10}}
numberOfPages={3}
currentPage={1}
hidesForSinglePage
pageIndicatorTintColor='gray'
currentPageIndicatorTintColor='white'
indicatorStyle={{borderRadius: 5}}
currentIndicatorStyle={{borderRadius: 5}}
indicatorSize={{width:8, height:8}}
onPageIndicatorPress={this.onItemTap}
/>