no mediaquery widget ancestor found. flutter

No MediaQuery widget ancestor found.

Its because, the showModalBottomSheet tries to access the ancestor of type 
MaterialApp from the given context.

Use Builder widget to get new context with MaterialApp ancestor or Separate 
your MaterialAapp and Scaffold widgets into separate widgets.

Using Builder :

floatingActionButton: Builder(
  builder: (context) => FloatingActionButton(
      child: Icon(Icons.add),
      onPressed: () { showModalBottomSheet(
          context: context,
          builder: (context) {
            return Text('Modal bottom sheet', style: TextStyle(fontSize: 30));
          });
      }
  ),
),
  
reference:
https://stackoverflow.com/questions/59864150/flutter-exception-caught-by-gesture-no-mediaquery-widget-found-inside-showmodal

Posted by: Guest on March-01-2021

import 'package:flutter/cupertino.dart'; import 'package:flutter/material.dart'; void main(){ runApp(MyApp()); } class MyApp extends StatelessWidget { const MyApp({Key? key}) : super(key: key); @override Widget build(BuildContext context) { return MaterialApp(); } }

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