react-native-component-inview

A React Native wrapper to check whether a component is in the view port to track impressions and clicks

Installation

npm i --save react-native-component-inview # npm syntax 
yarn add react-native-component-inview --save # yarn syntax 

Example

import InView from 'react-native-component-inview'

const [isInView, setIsInView] = useState(false)

const checkVisible = (isVisible:boolean) => {
    if (isVisible){
      setIsInView(isVisible)
    } else {
      setIsInView(isVisible)
    }
  }

<ScrollView>
  <InView onChange={(isVisible) => this.checkVisible(isVisible)}>
    <View style={[styles.item, {backgroundColor: isInView ? 'yellow' : '#f9c2ff'}]}>
      <Text>yay</Text>
    </View>
  </InView>
</ScrollView>