Is it correct to have nested Scaffold in Flutter?

user_12825709 0
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I have a PageView in my app homepage and I want :

  1. The AppBar changes according to the page
  2. The BottomAppBar is fixed

The 2 solutions I imagined are :

  1. The hard one : have one Scaffold with appBar, body and bottomNavigationBar ; use the PageView's PageController to animate the AppBar content...
  2. Have 2 nested Scaffold : the main one with body and bottomNavigationBar, and a second one in each PageView's page, with the AppBar...

So I was wondering, it works but is it "correct" syntactically to have nested Scaffold ?

Thanks a lot !

flutter-scaffold scaffold flutter-pageview flutter-layout flutter
2 Answers

Go here: https://api.flutter.dev/flutter/material/Scaffold-class.html

There is a section named Troubleshooting and inside it, you will find this:

Nested Scaffolds

The Scaffold was designed to be the single top level container for a MaterialApp and it's typically not necessary to nest scaffolds. For example in a tabbed UI, where the bottomNavigationBar is a TabBar and the body is a TabBarView, you might be tempted to make each tab bar view a scaffold with a differently titled AppBar. It would be better to add a listener to the TabController that updates the AppBar.

user_61569890

I think so. Scaffold is just like any other widget imo. It's just so convenient as it provides you with an app bar, body, etc. I usually put it as a child of SafeArea widget so that the app takes into account the notches on the modern smartphones.

user_140389150
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