50更新

lib/pages/cart_page.dart

@@ -1,56 +1,68 @@
 import 'package:flutter/material.dart';
-import 'package:provide/provide.dart';
-import '../provide/counter.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 
 
-class CartPage extends StatelessWidget {
+class CartPage extends StatefulWidget {
   @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(title: Text('购物车'),),
-      body: Container(
-        margin: EdgeInsets.only(top: 200),
-        child: Center(
-          child: Column(
-            children: <Widget>[
-              Number(),
-              MyButton()
-            ],
-          ),
-        )
-      ),
-    );
-  }
+  _CartPageState createState() => _CartPageState();
 }
 
-class Number extends StatelessWidget {
+class _CartPageState extends State<CartPage> {
+  List<String> testList =[];
+
   @override
   Widget build(BuildContext context) {
+    _show();  //每次进入前进行显示
     return Container(
-      child: Center(
-        child: Provide<Counter>(
-          builder: (context,child,counter){
-            return Text(
-              "${counter.value}",
-              style: Theme.of(context).textTheme.display1
-            );
-          },
-        ),
+      child: Column(
+        children: <Widget>[
+          Container(
+            height: 500,
+            child: ListView.builder(
+              itemCount: testList.length,
+              itemBuilder: (context,index){
+                return ListTile(
+                  title: Text(testList[index]),
+                );
+              },
+            ),
+          ),
+          RaisedButton(
+            onPressed: (){_add();},
+            child: Text("增加"),
+          ),
+          RaisedButton(
+            onPressed: (){_clear();},
+            child: Text("清空"),
+          ),
+        ],
       ),
     );
   }
-}
 
-class MyButton extends StatelessWidget {
-  @override
-  Widget build(BuildContext context) {
-    return Container(
-      child: RaisedButton(
-        onPressed: (){
-          Provide.value<Counter>(context).increment();
-        },
-        child: Text("递增"),
-      )
-    );
+  void _add() async {
+      SharedPreferences prefs = await SharedPreferences.getInstance();
+      String temp="技术胖是最胖的!";
+      testList.add(temp);
+      prefs.setStringList('testInfo', testList);
+      _show();
+  }
+
+  void _show() async{
+    SharedPreferences prefs = await SharedPreferences.getInstance();
+    setState(() {
+        if(prefs.getStringList('testInfo')!=null){
+            testList=prefs.getStringList('testInfo');
+        }
+    });
+  }
+
+  void _clear() async{
+    SharedPreferences prefs = await SharedPreferences.getInstance();
+    //prefs.clear(); //全部清空
+    prefs.remove('testInfo'); //删除key键
+    setState((){
+      testList=[];
+    });
   }
 }

lib/pages/details_page/details_bottom.dart

@@ -6,7 +6,7 @@ class DetailsBottom extends StatelessWidget {
   Widget build(BuildContext context) {
     return Container(
       width: ScreenUtil().setWidth(750),
-      height: ScreenUtil().setHeight(80),
+      height: ScreenUtil().setHeight(90),
       //padding: EdgeInsets.all(15),
       child: Row(
         children: <Widget>[

lib/pages/details_page/details_web.dart

@@ -21,6 +21,7 @@ class DetailsWeb extends StatelessWidget {
         } else {
           return Container(
             width: ScreenUtil().setWidth(750),
+            height: ScreenUtil().setHeight(600),
             padding: EdgeInsets.all(10),
             alignment: Alignment.center,
             child:Text('暂时没有数据')

pubspec.yaml

@@ -28,6 +28,7 @@ dependencies:
   fluttertoast: ^3.0.1
   fluro: ^1.4.0
   flutter_html: ^0.9.6
+  shared_preferences: ^0.5.1
 
 dev_dependencies:
   flutter_test: