Need to handle renderRightButton

[bisht2ankit]

Version

• react-native-router-flux v4.0.0-beta.28
• react-native v0.52.0

How to handle renderRightButton(or any callback) from any class.
I have defined my scenes in my app.js file.
The right button is properly rendering on the right side of navigation but I want to handle this callback from other class(not from app.js).

This is my app.js file where all my scenes are defined.

[aksonov]

Check Example project for more details