How to use Hamburger and Back button in Navigation Drawer

[UmairAhmed85]

Hi, first of all, nice and smooth library.
The only problem i am facing in implementing is to not able to find a way where i can toggle the hamburger to back button when i am looking at some detail page so i can press the back button and go back to home screen.
Can you please tell me what could one do to achieve this Master & Detail page switching hamburger and back button.

And is there anyway, i can override the navigation listener. For example, when i tapped on navigation drawer in closed or open state, do we have any listener where we can use our condition to navigate accordingly
Thanks