diff --git a/README.md b/README.md
index 685a536..bacb6c4 100644
--- a/README.md
+++ b/README.md
@@ -32,10 +32,10 @@
 
 ```
 a1@toly ~ % flutter --version
-Flutter 1.20.1 • channel stable • https://github.com/flutter/flutter.git
-Framework • revision 2ae34518b8 (2 days ago) • 2020-08-05 19:53:19 -0700
-Engine • revision c8e3b94853
-Tools • Dart 2.9.0
+Flutter 1.20.3 • channel stable • https://github.com/flutter/flutter.git
+Framework • revision 216dee60c0 (10 days ago) • 2020-09-01 12:24:47 -0700
+Engine • revision d1bc06f032
+Tools • Dart 2.9.2
 ```
 
 ---
diff --git a/lib/views/app/bloc_wrapper.dart b/lib/views/app/bloc_wrapper.dart
index a397143..fa01af6 100644
--- a/lib/views/app/bloc_wrapper.dart
+++ b/lib/views/app/bloc_wrapper.dart
@@ -14,14 +14,20 @@ import 'package:flutter_unit/storage/app_storage.dart';
 
 final storage = AppStorage();
 
-class BlocWrapper extends StatelessWidget {
+class BlocWrapper extends StatefulWidget {
   final Widget child;
 
   BlocWrapper({this.child});
 
-  final repository = WidgetDbRepository(storage);
-  final categoryRepo = CategoryDbRepository(storage);
+  @override
+  _BlocWrapperState createState() => _BlocWrapperState();
+}
 
+class _BlocWrapperState extends State<BlocWrapper> {
+  final repository = WidgetDbRepository(storage);
+  
+  final categoryBloc = CategoryBloc(repository: CategoryDbRepository(storage));
+  
   @override
   Widget build(BuildContext context) {
     return MultiBlocProvider(//使用MultiBlocProvider包裹
@@ -38,17 +44,26 @@ class BlocWrapper extends StatelessWidget {
           create: (_) => DetailBloc(repository: repository)),
 
       BlocProvider<CategoryBloc>(
-          create: (_) =>
-              CategoryBloc(repository: categoryRepo)..add(EventLoadCategory())),
+          create: (_) => categoryBloc..add(EventLoadCategory())),
 
       BlocProvider<CollectBloc>(
           create: (_) =>
               CollectBloc(repository: repository)..add(EventSetCollectData())),
 
+          BlocProvider<CategoryWidgetBloc>(
+              create: (_) =>
+              CategoryWidgetBloc(categoryBloc: categoryBloc)),
+      
       BlocProvider<SearchBloc>(
           create: (_) => SearchBloc(repository: repository)),
       BlocProvider<PointBloc>(create: (_) => PointBloc()),
       BlocProvider<PointCommentBloc>(create: (_) => PointCommentBloc()),
-    ], child: child);
+    ], child: widget.child);
+  }
+  
+  @override
+  void dispose() {
+    categoryBloc.close();
+    super.dispose();
   }
 }
diff --git a/lib/views/app/flutter_unit.dart b/lib/views/app/flutter_unit.dart
index e897d16..e831bb9 100644
--- a/lib/views/app/flutter_unit.dart
+++ b/lib/views/app/flutter_unit.dart
@@ -12,10 +12,7 @@ class FlutterUnit extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return BlocBuilder<GlobalBloc, GlobalState>(builder: (_, state) {
-      return BlocProvider<CategoryWidgetBloc>(
-        create: (_) => CategoryWidgetBloc(
-            categoryBloc: BlocProvider.of<CategoryBloc>(context)),
-        child: MaterialApp(
+      return MaterialApp(
 //            debugShowMaterialGrid: true,
             showPerformanceOverlay: state.showPerformanceOverlay,
 //            showSemanticsDebugger: true,
@@ -28,7 +25,7 @@ class FlutterUnit extends StatelessWidget {
               primarySwatch: state.themeColor,
               fontFamily: state.fontFamily,
             ),
-            home: UnitSplash()),
+            home: UnitSplash(),
       );
     });
   }
diff --git a/lib/views/common/loading_page.dart b/lib/views/common/loading_page.dart
index f092842..df0662e 100644
--- a/lib/views/common/loading_page.dart
+++ b/lib/views/common/loading_page.dart
@@ -1,15 +1,15 @@
 import 'package:flutter/material.dart';
 
 class LoadingPage extends StatelessWidget {
-
-
-
   @override
   Widget build(BuildContext context) {
-    return  Container(
+    return Container(
       height: 300,
       alignment: Alignment.center,
-      child: CircularProgressIndicator(backgroundColor: Colors.blue,valueColor:AlwaysStoppedAnimation<Color>(Colors.orangeAccent) ,),
+      child: CircularProgressIndicator(
+        backgroundColor: Colors.blue,
+        valueColor: AlwaysStoppedAnimation<Color>(Colors.orangeAccent),
+      ),
     );
   }
 }