Navigation is one of those things in Flutter that looks simple… until it isn’t. At first, pushing a screen feels straightforward. But as your app grows — multiple flows, authentication states, nested routes — things start getting messy. Back stacks behave unexpectedly, screens duplicate, and users land in places they shouldn’t. We’ve been there. So in this guide, we’re breaking down Flutter navigation in a way that actually makes sense — with real use cases, clean patterns, and common mistakes developers often overlook. 🧭 The Core Idea of Navigation in Flutter Flutter uses a stack-based navigation system. Think of it like this: Every new screen is pushed onto a stack Going back pops the top screen You can replace, reset, or manipulate the stack as needed 🚀 Basic Navigation (Push & Pop) Go to a new screen Navigator . push ( context , MaterialPageRoute ( builder: ( context ) = > SecondScreen ()), ); Enter fullscreen mode Exit fullscreen mode Go back Navigator .…