add home scaffold

lib/views/home.dart

@@ -24,7 +24,6 @@ import 'package:flutter_go/resources/widget_name_to_icon.dart';
 const int ThemeColor = 0xFFC91B3A;
 
 class AppPage extends StatefulWidget {
-
   @override
   State<StatefulWidget> createState() {
     return _MyHomePageState();
@@ -33,13 +32,12 @@ class AppPage extends StatefulWidget {
 
 class _MyHomePageState extends State<AppPage>
     with SingleTickerProviderStateMixin {
-
   SpUtil sp;
   WidgetControlModel widgetControl = new WidgetControlModel();
   SearchHistoryList searchHistoryList;
   bool isSearch = false;
   String appBarTitle = tabData[0]['text'];
-  List<Widget> list = List();
+  List<Widget> _list = List();
   int _currentIndex = 0;
   static List tabData = [
 //    {'text': '业界动态', 'icon': Icon(Icons.language)},
@@ -48,21 +46,21 @@ class _MyHomePageState extends State<AppPage>
     {'text': '关于手册', 'icon': Icon(Icons.import_contacts)},
   ];
 
-  List<BottomNavigationBarItem> myTabs = [];
+  List<BottomNavigationBarItem> _myTabs = [];
 
   @override
   void initState() {
     super.initState();
     initSearchHistory();
     for (int i = 0; i < tabData.length; i++) {
-      myTabs.add(BottomNavigationBarItem(
+      _myTabs.add(BottomNavigationBarItem(
         icon: tabData[i]['icon'],
         title: Text(
           tabData[i]['text'],
         ),
       ));
     }
-    list
+    _list
 //      ..add(FirstPage())
 //      ..add(MainPage())
       ..add(WidgetPage(Provider.db))
@@ -131,13 +129,16 @@ class _MyHomePageState extends State<AppPage>
   Widget build(BuildContext context) {
     return new Scaffold(
       appBar: renderAppBar(context, widget, _currentIndex),
-      body: list[_currentIndex],
+      body: IndexedStack(
+        index: _currentIndex,
+        children: _list,
+      ),
       bottomNavigationBar: BottomNavigationBar(
-        items: myTabs,
+        items: _myTabs,
         //高亮  被点击高亮
         currentIndex: _currentIndex,
         //修改 页面
-        onTap: _ItemTapped,
+        onTap: _itemTapped,
         //shifting :按钮点击移动效果
         //fixed：固定
         type: BottomNavigationBarType.fixed,
@@ -147,7 +148,7 @@ class _MyHomePageState extends State<AppPage>
     );
   }
 
-  void _ItemTapped(int index) {
+  void _itemTapped(int index) {
     setState(() {
       _currentIndex = index;
       appBarTitle = tabData[index]['text'];