修改页面，页面传值路由初探

netrain_flutter_app/lib/jishuaishuai/student.dart

 
-import 'dart:ffi';
-import 'dart:html';
-
 import 'package:flutter/material.dart';
 
+
 class jssPageDemo  extends StatelessWidget {
   // const ({Key? key}) : super(key: key)
 
   @override
   Widget build(BuildContext context) {
+   return Scaffold(
+     appBar: AppBar(
+       title: Text("jss测试页面"),
+
+     ),
+     body:Column(
+       children:[
+         RaisedButton(
+           onPressed:() {
+             
+             Navigator.of(context).push(MaterialPageRoute(
+                 builder: (context){
+                   return twoVCdemo();
+             },
+               settings: RouteSettings(
+                 name: "我是传过去的",
+                 arguments:"参数，是对象类型",
+               )
+             ),
+             );
+           },
+           child: Text("点击进入下一页，页面传值与返回。"),
+         ),
+         textDemo(),
+         buttonDemo(),
+         imageiconDemo(),
+       ]
+
+     )
+
+
+
+   );
     return Container(
 
     child: Column(
@@ -24,6 +55,80 @@ class jssPageDemo  extends StatelessWidget {
   }
 }
 
+class twoVCdemo  extends StatelessWidget {
+  // const ({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+
+    appBar: AppBar(
+    title: Text("jssDemo第二个页面的标题"),
+    ),
+      body: Column(
+        children: [
+          IconButton(
+            icon: Icon(Icons.home),
+            onPressed:() {
+
+              Navigator.of(context).push(MaterialPageRoute(
+                  builder: (context){
+                    return nextViewDemo();
+                  },
+                  settings: RouteSettings(
+                    name: "我是传过去的",
+                    arguments:"参数，是对象类型",
+                  ),
+                //是否有返回
+                maintainState: false,
+                //类似iOS ture 弹窗式推送界面 false 是push
+                fullscreenDialog: false,
+              ),
+              );
+            },
+
+
+          ),
+        ],
+      ),
+
+
+    );
+  }
+}
+
+
+
+class nextViewDemo extends StatelessWidget {
+  // const nextViewDemo({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text("jss测试第三界面"),
+
+      ),
+      body: Column(
+        children: [
+         RaisedButton(onPressed: () {
+           Navigator.of(context).pop(
+             "我传过来值了，这是一个对象类型"
+           );
+         },
+           child: Text("点击返回传值"),
+         ),
+
+        ],
+      ),
+
+
+    );
+  }
+}
+
+
+
 
 class textDemo  extends StatelessWidget {
   // const ({Key? key}) : super(key: key);
@@ -98,9 +203,9 @@ class imageiconDemo extends StatelessWidget {
       children: [
         Icon(Icons.add),
         IconButton(onPressed: (){}, icon: Icon(Icons.home)),
-        Image.network("http://www.baidu.com/baidu.php?url=a00000KEJeCxDFezEVpFL9_MH8XSqbHklw_maA_-0O-JAG-gv2I-uvEAQqh-teALqpO_NZN1EbyMj5iOpf3Z1ZREUPx5_1lniEkZj6mijxFoM8VqoaPcH0KOxWwCyPbmri5Hlwk-A8u4pBUbGLW2x882fEua1eOAEbBWTdTqxEMA631a3yr2qBWOz88FPpAVsair-sXakr4y6eguntj86fZCDab3.DR_aOQZsYpb2glyIiUr2s1f_uQr1Fv20.U1Yk0ZDqVSXS_0KY5IissIpS_QMU8pi110KGUHY1PWT0Iybq0ZKGujYk0APGujY1rjc0mhbqn10k0AuY5H00TA6qn0KET1Ys0AFL5H00UMfqn0K1XWY0ThIYmyTqn0K8IM0qna3snj0snj0sn0K-ThTqn0KYTh7buHYdrH0knHm0mhwGujdKnWT1rj0sPHnLPYm1fHndrRmdrH64rjDkwjT3PHcsPsKbmvPb5fK9TdqGuAnqujcVmhwbX0KzIjY3P1T0TgKGujYs0Z7Wpyfqn0K9mWYsg100TZ0qn0KVIZ0qn0KbuAqs5H00ThCqn0KYIgnqnHT1P1DYnWD3P1nYP1RznWDYnW60mynqnfKsUWYs0ZK9I7qhUA7M5H00ugwGujYVnfK9TLKWm1Ys0ZNspy4Wm1Ys0AuWIgfqn0K9uAu_myTqnfKLuMFEUHY0mMfqnfKzug7Y5HDvnWRLnW64rHTvrjm0Tv-b5Hbsn16Lm179n1F9nHRvrj60ULfqn0KETMKY5H0WnaPDw-fWnansc10Wna3sc10WwDuRc10WwDuR0AVG5H00UgfqnWfkn0KVm1Ys0AdWgvuzUvYqn0Kbmy4dmhNxTAk9Uh-bT1Ys0A7bTgbqVSXS_0K9uZ7Y5H00pgPWUjYs0Z7VIjYs0A7bgLPEIgFWuHYsczn0mLFW5HRkrjcL",
-        fit: BoxFit.fitWidth
-        ),
+        // Image.network("http://www.baidu.com/baidu.php?url=a00000KEJeCxDFezEVpFL9_MH8XSqbHklw_maA_-0O-JAG-gv2I-uvEAQqh-teALqpO_NZN1EbyMj5iOpf3Z1ZREUPx5_1lniEkZj6mijxFoM8VqoaPcH0KOxWwCyPbmri5Hlwk-A8u4pBUbGLW2x882fEua1eOAEbBWTdTqxEMA631a3yr2qBWOz88FPpAVsair-sXakr4y6eguntj86fZCDab3.DR_aOQZsYpb2glyIiUr2s1f_uQr1Fv20.U1Yk0ZDqVSXS_0KY5IissIpS_QMU8pi110KGUHY1PWT0Iybq0ZKGujYk0APGujY1rjc0mhbqn10k0AuY5H00TA6qn0KET1Ys0AFL5H00UMfqn0K1XWY0ThIYmyTqn0K8IM0qna3snj0snj0sn0K-ThTqn0KYTh7buHYdrH0knHm0mhwGujdKnWT1rj0sPHnLPYm1fHndrRmdrH64rjDkwjT3PHcsPsKbmvPb5fK9TdqGuAnqujcVmhwbX0KzIjY3P1T0TgKGujYs0Z7Wpyfqn0K9mWYsg100TZ0qn0KVIZ0qn0KbuAqs5H00ThCqn0KYIgnqnHT1P1DYnWD3P1nYP1RznWDYnW60mynqnfKsUWYs0ZK9I7qhUA7M5H00ugwGujYVnfK9TLKWm1Ys0ZNspy4Wm1Ys0AuWIgfqn0K9uAu_myTqnfKLuMFEUHY0mMfqnfKzug7Y5HDvnWRLnW64rHTvrjm0Tv-b5Hbsn16Lm179n1F9nHRvrj60ULfqn0KETMKY5H0WnaPDw-fWnansc10Wna3sc10WwDuRc10WwDuR0AVG5H00UgfqnWfkn0KVm1Ys0AdWgvuzUvYqn0Kbmy4dmhNxTAk9Uh-bT1Ys0A7bTgbqVSXS_0K9uZ7Y5H00pgPWUjYs0Z7VIjYs0A7bgLPEIgFWuHYsczn0mLFW5HRkrjcL",
+        // fit: BoxFit.fitWidth
+        // ),
         Image.asset("ic_home_normal.png")
       ],
     );