I will assume that you want to use Xamarin.Forms, instead of using Xamarin.Android and Xamarin.iOS separately.
One approach would be to use default MasterDetailPage as described here or even better to try it with Shell as described here.
Then, you would need to create your CustomNavigationPage
and write a custom renderer for it.
Second approach would be to do some tricks, again creating your CustomNavigationPage
with template(so that the navigation bar is always displayed) and that you change content dynamically.
Also, you would need to hide default navigation bar and attach click events to your menu button to really open up the menu.
Hope you got it clearly.
Master-Detail
setup? – FreakyAli