import { useFocusSubscription } from 'react-native-observable-hooks-focus-subscription-plugin';

const MyScreen = () => {

  const count$ = interval(1000)
  const observer = {
    next: (value: number) => {
      console.log(value)
    },
  }

  useFocusSubscription(count$, observer)

  return (
    <View>
      <Text>My Screen</Text>
    </View>
  )
}