[cheeaun]

Hmm, I don't actually control that. I use NavigatorIOS which just need to pass the 'title' string. http://facebook.github.io/react-native/docs/navigatorios.htm...

[nvcken]

Well, because as the mention that is NavigatorIOS will be discontinue maintained and also hear from them about the new Experiment Navigation so that I have not ever tried NavigatorIOS. Curiously why you want use NavigatorIOS ?

[cheeaun]

I use NavigatorIOS mainly because it looks more native on iOS (with blurred background), though less customisable and sometimes buggy. Navigator and NavigationExperimental is more customizable but somehow looks "off".