Widget build(BuildContext context) { return Scaffold( appBar: AppBar(title: Text('IntrinsicWidth')), body: Center( child: IntrinsicHeight( child: Row( crossAxisAlignment: CrossAxisAlignment.stretch, children: <Widget>[ RaisedButton( onPressed: () {}, child: Text('Short'), ), RaisedButton( onPressed: () {}, child: Text('A bit Longer'), ), RaisedButton( onPressed: () {}, child: Text('The Longest text button'), ), ], ), ), ), ); }