The iOS has navigation back button behaviour is kind of strange: By default is displays the title of the previous page, but if the title of the current page is to long it displays "Back", no matter what language you have selected on your device. Our customers don't want that.
I came across this post on how to change this behaviour in Xamarin.iOS. But I need to do it in Xamarin.Forms. I know how to make a custom renderer but I don't know how to get to the back button, Anyone who can help?