修复切换tabbar导致用户状态丢失的问题

lib/pages/assistant/view.dart

@@ -9,7 +9,7 @@ class AssistantPage extends GetView<AssistantController> {
 
   // 主视图
   Widget _buildView() {
-    return GridWidget();
+    return _AssistantPage();
   }
 
   @override
@@ -29,3 +29,20 @@ class AssistantPage extends GetView<AssistantController> {
     );
   }
 }
+
+class _AssistantPage extends StatefulWidget {
+  const _AssistantPage({Key? key}) : super(key: key);
+
+  @override
+  State<_AssistantPage> createState() => _AssistantPageState();
+}
+
+class _AssistantPageState extends State<_AssistantPage> with AutomaticKeepAliveClientMixin{
+  @override
+  // TODO: implement wantKeepAlive
+  bool get wantKeepAlive => true;
+  @override
+  Widget build(BuildContext context) {
+    return  GridWidget();
+  }
+}

lib/pages/creation/view.dart

@@ -9,7 +9,7 @@ class CreationPage extends GetView<CreationController> {
 
   // 主视图
   Widget _buildView() {
-    return GridWidget();
+    return const _InnerCreationPage();
     // return Obx(() => Center(
     //       child: InkWell(
     //         onTap: () => controller.increment(),
@@ -40,3 +40,23 @@ class CreationPage extends GetView<CreationController> {
     );
   }
 }
+
+class _InnerCreationPage extends StatefulWidget {
+  const _InnerCreationPage({Key? key}) : super(key: key);
+
+  @override
+  State<_InnerCreationPage> createState() => _InnerCreationPageState();
+}
+
+class _InnerCreationPageState extends State<_InnerCreationPage>
+    with AutomaticKeepAliveClientMixin {
+
+  /// 防止每次切换之后自动滑动到顶部
+  @override
+  bool get wantKeepAlive => true;
+
+  @override
+  Widget build(BuildContext context) {
+    return GridWidget();
+  }
+}

lib/pages/home/view.dart

@@ -23,12 +23,34 @@ class HomePage extends GetView<HomeController> {
 
   @override
   Widget build(BuildContext context) {
-    final cc = Get.put(HomeController());
     return WillPopScope(
         onWillPop: () async {
           return false;
         },
-        child: Obx(() => Scaffold(
+        child: const _HomePage());
+  }
+}
+
+class _HomePage extends StatefulWidget {
+  const _HomePage({Key? key}) : super(key: key);
+
+  @override
+  State<_HomePage> createState() => _HomePageState();
+}
+
+class _HomePageState extends State<_HomePage>
+    with AutomaticKeepAliveClientMixin {
+  @override
+  // TODO: implement wantKeepAlive
+  bool get wantKeepAlive => true;
+
+  HomeController get controller => Get.find();
+
+  @override
+  Widget build(BuildContext context) {
+    final cc = Get.put(HomeController());
+    return Obx(() =>
+        Scaffold(
           resizeToAvoidBottomInset: false,
           backgroundColor: Color.fromARGB(0, 0, 0, 0),
           appBar: transparentAppBar(
@@ -126,7 +148,7 @@ class HomePage extends GetView<HomeController> {
                   // GradientButton(
                   //     child: Icon(Icons.text_fields_sharp), callback: () {}),
                   /*Android语音转换文字有问题暂时屏蔽掉*/
-                     (Platform.isAndroid ? Container(): Container(
+                  (Platform.isAndroid ? Container() : Container(
                       margin: const EdgeInsets.only(right: 10),
                       child: InkWell(
                           borderRadius: BorderRadius.circular(100),
@@ -217,7 +239,8 @@ class HomePage extends GetView<HomeController> {
               ),
             ),
           ),
-            )));
+        )
+    );
   }
 }