flutter image(本地调动和网络加载)

本地使用需要注意：https://www.jianshu.com/p/fb878254b393

import 'package:flutter/material.dart';

void main() {
  runApp( MaterialApp(
    title: 'Flutter gesture',
    home: Widget_Image_Page(),
  ));
}
class Widget_Image_Page extends StatefulWidget{
  @override
  State<StatefulWidget> createState() {
    return new Widget_Image_State();
  }
}

class Widget_Image_State extends State<Widget_Image_Page> {

  var neturl = "https://bpic.588ku.com/PPt_origin_pic/pptyj/00/09/83/9f65ad5f03acc9b542629d3b445b9fbe.jpg";
  var gifurl = "https://bpic.588ku.com/PPt_origin_pic/pptyj/00/11/29/2086287a1b2df5c7dd7cf472d8259753.jpg";
  var tempUrl = "https://bpic.588ku.com/PPt_origin_pic/pptyj/00/09/67/5060abff381a0e0fb1a3d8c35a95941e.jpg";

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text("Image"),
        ),
        body: ListView(
          children: <Widget>[
            Image(
              image: NetworkImage(tempUrl),
            ),

            Container(
                color: Colors.grey,
                child: Column(
                  children: <Widget>[
                    Container(
                      color: Colors.red,
                      margin: EdgeInsets.only(top: 20.0),
                      child: Image.network(neturl,
                        width: 200.0,
                        height: 200.0,
                        fit: BoxFit.fill,
                      ),
                    ),
                    Container(
                      color: Colors.red,
                      margin: EdgeInsets.only(top: 20.0),
                      child: Image.network(neturl,
                        width: 200.0,
                        height: 200.0,
                        fit: BoxFit.contain,
                      ),
                    ),

                    Container(
                      color: Colors.red,
                      margin: EdgeInsets.only(top: 20.0),
                      child: Image.network(neturl,
                        width: 200.0,
                        height: 200.0,
                        fit: BoxFit.cover,
                      ),
                    ),

                    Container(
                      color: Colors.red,
                      margin: EdgeInsets.only(top: 20.0),
                      child: Image.network(neturl,
                        width: 200.0,
                        height: 200.0,
                        fit: BoxFit.fitWidth,
                      ),
                    ),

                    Container(
                      color: Colors.red,
                      margin: EdgeInsets.only(top: 20.0),
                      child: Image.network(neturl,
                        width: 200.0,
                        height: 200.0,
                        fit: BoxFit.fitHeight,
                      ),
                    ),

                    Container(
                      color: Colors.red,
                      margin: EdgeInsets.only(top: 20.0),
                      child: Image.network(neturl,
                        width: 200.0,
                        height: 200.0,
                        fit: BoxFit.none,
                      ),
                    ),

                    Container(
                      color: Colors.red,
                      margin: EdgeInsets.only(top: 20.0),
                      child: Image.network(neturl,
                        width: 200.0,
                        height: 200.0,
                        fit: BoxFit.scaleDown,
                      ),
                    ),
                    Container(
                      color: Colors.red,
                      margin: EdgeInsets.only(top: 20.0),
                      child: Image.network(gifurl,
                        width: 200.0,
                        height: 200.0,
                      ),
                    ),
                  ],
                )
            ),

            Container(
              color: Colors.greenAccent,
              child: Column(
                children: <Widget>[
                  Container(
                    color: Colors.blue,
                    margin: EdgeInsets.only(top: 20.0),
                    child: Image.asset("res/images/ceshi_image1.jpg",
                      width: 200.0,
                      height: 200.0,
                      repeat: ImageRepeat.repeat,
                    ),
                  ),
                  Container(
                    color: Colors.blue,
                    margin: EdgeInsets.only(top: 20.0),
                    child: Image.asset("res/images/ceshi_image1.jpg",
                      width: 200.0,
                      height: 200.0,
                      repeat: ImageRepeat.repeatX,
                    ),
                  ),
                  Container(
                    color: Colors.blue,
                    margin: EdgeInsets.only(top: 20.0),
                    child: Image.asset("res/images/ceshi_image1.jpg",
                      width: 200.0,
                      height: 200.0,
                      repeat: ImageRepeat.repeatY,
                    ),
                  ),
                  Container(
                    color: Colors.blue,
                    margin: EdgeInsets.only(top: 20.0),
                    child: Image.asset("res/images/ceshi_image1.jpg",
                      width: 200.0,
                      height: 200.0,
                      repeat: ImageRepeat.noRepeat,
                      alignment: Alignment.bottomRight,
                    ),
                  ),
                ],
              ),
            ),

            Container(
              color: Colors.orange,
              child: Column(
                children: <Widget>[
                  Container(
                    color: Colors.red,
                    margin: EdgeInsets.only(top: 20.0),
                    child: Image.network(tempUrl,
                      width: 200.0,
                      height: 200.0,
                      gaplessPlayback: true,
                    ),
                  ),
                  Container(
                    color: Colors.red,
                    margin: EdgeInsets.only(top: 20.0),
                    child: Image.network(tempUrl,
                      width: 200.0,
                      height: 200.0,
                      gaplessPlayback: false,
                    ),
                  ),
                  RaisedButton(
                    child: Text("点击改变图片地址"),
                    onPressed: (){
                      setState(() {
                        tempUrl =
                        "http://b.hiphotos.baidu.com/image/h%3D300/sign=ad628627aacc7cd9e52d32d909032104/32fa828ba61ea8d3fcd2e9ce9e0a304e241f5803.jpg";
                      });
                    },
                  ),
                ],
              ),
            ),
            Image.asset("res/images/ceshi_image3.jpg"),
//            Image.file(File("")),
//            Image.memory("")
          ],
        ),
      ),
    );
  }
}

跑起来吧少年