// Before Dart 2 Widget build(BuildContext context) { return new Container( height: 56.0, padding: const EdgeInsets.symmetric(horizontal: 8.0), decoration: new BoxDecoration(color: Colors.blue[500]), child: new Row( ... ), ); } // After Dart 2 Widget build(BuildContext context) => Container( height: 56.0, padding: EdgeInsets.symmetric(horizontal: 8.0), decoration: BoxDecoration(color: Colors.blue[500]), child: Row( ... ), );
