react-navigation: Detect when screen, tabbar is activated / appear / focus / blur
import { useFocusEffect } from '@react-navigation/native';
function ProfileScreen() {
useFocusEffect(
React.useCallback(() => {
alert('Screen was focused');
return () => {
alert('Screen was unfocused');
// Useful for cleanup functions
};
}, [])
);
return <View />;
}