Flutter how to pass a widget as a parameter - flutter

Question

I've been developing a mobile app in flutter for a few days and just to reuse some code I'd like to pass a widget as a parameter so I don't have to duplicate a bunch of code. I tried some solutions I found here but none of them worked.
Here's what I have so far:
CarouselItem.dart
class CarouselItem extends StatelessWidget {
CarouselItem({
Key? key,
required this.index, required this.height, required this.width, required this.title, required this.destination,
}) : super(key: key);
final int index;
final double height;
final double width;
final String title;
final RouteOneCallBack destination; //trying to pass the widget
//List of images
List<String> list = [
'https://audioguia.s3.eu-west-3.amazonaws.com/FOTOS/Alqueva/A1-placa+entrada.jpg',
];
#override
Widget build(BuildContext context) {
return Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Container(
margin: EdgeInsets.all(6.0),
child: ClipRRect(
borderRadius: BorderRadius.circular(30.0),
child: GestureDetector(
child: Image.network(
list[index],
fit: BoxFit.cover,
height: height,
width: width,
),
onTap: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) =>
destination(), //widget goes here
),
);
},
),
),
),
SizedBox(height: 20),
Container(
padding: EdgeInsets.only(left: 10),
child: Text(
title,
style: TextStyle(fontWeight: FontWeight.bold),
),
),
],
);
}
}
Home.dart
How I want this to go
items: [
CarouselItem(
index: 0,
width: 500,
height: 200,
title: "Destino 1",
destination: RouteOne()
),
Am I missing an extra step? Thanks in advance.
Basically what I want to do is the same I do with the String or int parameters I already have, but can't seem to understand how to do this with a widget.
RouteOne() is a stateful widget

Answer 1

class BottomSheetDialog extends StatelessWidget {
final Widget? child;
const BottomSheetDialog({Key? key, #required this.child}) : super(key: key);
#override
Widget build(BuildContext context) {
return Container(
height: Sizes.s350,
decoration: BoxDecoration(
color: Get.theme.cardColor,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(Sizes.s30),
topRight: Radius.circular(Sizes.s30))),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
Expanded(child: child!),
],
));
}
}
// call
BottomSheetDialog(child:const Text("test"));

Answer 2

You can pass the widget as a parameter because the StatefulWidget extends the Widget.
Here is common usage.
final Widget destination;