I'm developing my first application in React Native and have run into my first problem. For navigation I'm using a navigator. The problem is that I would like to hide it on the app's login page, but don't know how to do it.
Since the idea of a navigation bar is to persist across transitions, I don't think you have access to it from inside the navigator's routing. One solution would be to stack two navigators. One outer navigator for routing between login and main app. This one doesn't have a navigation bar. Main app is itself a navigator that has a navigation bar. Don't forget to provide the inner navigator with the instance of the outer navigator in the aptly name property "navigator".
Full disclosure: I never actually tried this, but it should work like this.