include this as 'callIfBackToThisRoute'...

export default ( props, call ) => {

    if( !props.navigation ) throw 'I need props.navigation'

    const thisRoute = props.navigation.state.routeName;

    props.navigation.addListener(

        'willFocus',

        payload => {

            if( payload.state.routeName == thisRoute) call(props)

        }

    );

}

and use it inside your component...

componentDidMount() {

    const { doIt } = this.props;

    doIt()

    callIfBackToThisRoute(

        this.props,

        (props) => doIt()

    )

}