when one wants to customise the header the existing
Header
can't really be re-used to keep its functionality.
One scenario would be to display the user current location above/below the default header.
header: (props) => <Header {...props} childrenPos="above"><Location/></Header>
alternatively:
It would be nice if, additionnally to custom left and right buttons, one could specify components that are rendered on top of the default stack header or below it.
This could be used to display the current location or the like.
header: (props) => <Header {...props} above={<Location/>}/>