Recently, I was tasked with implementing a new toast that remains fixed at the top of the screen using Flutter's Snack Bar. Initially, I assumed it would be a straightforward process – a matter of calling showSnackBar and configuring the behavior to floating as floating, adjusting the margin to ensure it floats at the screen's top.

Well. it's been a while since I started to use Flutter to develop a commercial App. There are some good practices that help me to deliver high-quality code, reduce the times to refactoring for the performance and prevent OT.