Flutter Master-detail view

When building mobile, desktop and web applications with Flutter often times you are faced with what to do with lists and the content when selected. Depending on the data you may have a list that renders another list before resolving to a detail view. On tablet or desktop this can be achieved with multi-column layouts.

On mobile you will still need to push to the details screen since the space is constrained.

How to build a Master-detail view with Flutter:

import 'package:flutter/material.dart';