flutter gallery

import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Gallery Demo',
theme: ThemeData(primarySwatch: Colors.lightGreen),
home: DisplayPage(),
);
}
}
class DisplayPage extends StatelessWidget {
final List<String> images = [
"assets/wallpaper-1.jpeg",
"assets/wallpaper-2.jpeg",
"assets/wallpaper-3.jpeg",
];
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: SizedBox.fromSize(
size: Size.fromHeight(550.0),
child: PageView.builder(
controller: PageController(viewportFraction: 0.8),
itemCount: images.length,
itemBuilder: (BuildContext context, int index) {
return new Padding(
padding: EdgeInsets.symmetric(
vertical: 16.0,
horizontal: 8.0,
),
child: Material(
elevation: 5.0,
borderRadius: BorderRadius.circular(8.0),
child: Stack(
fit: StackFit.expand,
children: [
Image.asset(
images[index],
fit: BoxFit.cover,
),
DecoratedBox(
decoration: BoxDecoration(
gradient: LinearGradient(
begin: FractionalOffset.bottomCenter,
end: FractionalOffset.topCenter,
colors: [
Color(0x00000000).withOpacity(0.9),
Color(0xff000000).withOpacity(0.01),
],
),
),
)
],
),
),
);
},
),
)),
);
}
}