DemoSlider.dart

import 'package:flutter/material.dart';
import 'package:carousel_slider/carousel_slider.dart';
import 'package:cached_network_image/cached_network_image.dart';
void main() => runApp(new MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      title: 'Flutter Demo',
      theme: new ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: DemoScreen(),
    );
  }
}



class DemoScreen extends StatefulWidget {
  @override
  _DemoScreenState createState() => _DemoScreenState();
}

class _DemoScreenState extends State<DemoScreen> {

//  List<String> imgList = ["https://images.pexels.com/photos/691034/pexels-photo-691034.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=350",
//  "https://images.pexels.com/photos/1308678/pexels-photo-1308678.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=350",
//  "https://images.pexels.com/photos/951539/pexels-photo-951539.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=350"];

  List<String> imgList = [];
  @override
  Widget build(BuildContext context) {
    return  new Scaffold(
      backgroundColor: Colors.black,
      appBar: AppBar(backgroundColor: Colors.black,
        title: Text("Slide Show",style: TextStyle(color: Colors.white),),centerTitle: true,
        leading: new IconButton(
                      iconSize: 28.0,
                      padding: const EdgeInsets.all(16.0),
                      icon: Icon(Icons.arrow_back,color: Colors.white,),
                      onPressed: () {
                        Navigator.pop(context);
                      },
                    ),
      ),
      body: new SafeArea(
        child: new Column(
          children: <Widget>[
            new SizedBox(height: 40.0,),
            imgList.length > 0 ?
            new CarouselSlider(
                items: imgList.map((url) {
                  return new Container(
                    width: MediaQuery.of(context).size.width,
                    margin: new EdgeInsets.symmetric(horizontal: 5.0),
                    decoration: new BoxDecoration(
                      borderRadius: new BorderRadius.all(new Radius.circular(5.0)),

                    ),
                    child: new CachedNetworkImage(
                      imageUrl: url,
                      fit: BoxFit.cover,
                      placeholder: new Center(
                          child: new SizedBox(
                              width: 50.0,
                              height: 50.0,
                              child: new CircularProgressIndicator()
                          )
                      ),
                      errorWidget: new Icon(Icons.error),
                      fadeOutDuration: new Duration(seconds: 1),
                      fadeInDuration: new Duration(seconds: 1),
                    ),
                  );
                }).toList(),
                height: MediaQuery.of(context).size.height * 0.70 ,
                autoPlay: true
            ):
            Expanded(child: Center(child: new Text("No photo found.",style: TextStyle(color: Colors.white))))
            ,
          ],
        ),
      ),
    );

  }
}