OfflineBanner.js

const OfflineBanner = () => {
    const [isOffline] = useNetworkInfo();
  
    if (isOffline) {
      return (
        <View style={styles.container}>
          <View style={styles.row}>
            <Text>You are currently offline</Text>
          </View>
        </View>
      );
    }
    return <></>;
  };