diff --git a/lib/community/community_course.dart b/lib/community/community_course.dart
index ba22dadb..81854309 100644
--- a/lib/community/community_course.dart
+++ b/lib/community/community_course.dart
@@ -55,9 +55,16 @@ class _CommunityCourse extends State<CommunityCourse>
         setState(() {});
       }
     });
-    queryCourseBanner();
-    classListAsync();
-    collectionList();
+    if (apiService == null) {
+      SharedPreferences.getInstance().then((value) {
+        apiService = ApiService(
+          Dio(),
+          context: context,
+          token: value.getString("token"),
+        );
+        _onRefresh();
+      });
+    }
   }
 
   ///banner
diff --git a/lib/community/community_view/class_details_video.dart b/lib/community/community_view/class_details_video.dart
index e94cc065..05c236db 100644
--- a/lib/community/community_view/class_details_video.dart
+++ b/lib/community/community_view/class_details_video.dart
@@ -31,9 +31,9 @@ class ClassDetailsVideo extends StatefulWidget {
 }
 
 class ClassDetailsVideoState extends State<ClassDetailsVideo> {
-  late VideoPlayerController videoPlayerController;
-  late ChewieController chewieAudioController;
-  late Chewie chewies;
+  VideoPlayerController? videoPlayerController;
+  ChewieController? chewieAudioController;
+  Chewie? chewies;
   GlobalKey globalKey = GlobalKey();
   double height = 0;
 
@@ -60,14 +60,14 @@ class ClassDetailsVideoState extends State<ClassDetailsVideo> {
   }
 
   initVideo(videoUrl) async {
-    videoPlayerController.pause();
-    videoPlayerController.dispose();
+    videoPlayerController?.pause();
+    videoPlayerController?.dispose();
     videoPlayerController = VideoPlayerController.networkUrl(
       Uri.parse(videoUrl),
     )..initialize().then((value) {
         chewieAudioController = ChewieController(
-          videoPlayerController: videoPlayerController,
-          aspectRatio: videoPlayerController.value.aspectRatio,
+          videoPlayerController: videoPlayerController!,
+          aspectRatio: videoPlayerController?.value.aspectRatio,
           // aspectRatio: 1.44,
           //宽高比
           autoPlay: false,
@@ -87,7 +87,7 @@ class ClassDetailsVideoState extends State<ClassDetailsVideo> {
           // 拖动条样式颜色
           autoInitialize: true,
         );
-        chewieAudioController.addListener(_fullScreenListener);
+        chewieAudioController?.addListener(_fullScreenListener);
         if (mounted) setState(() {});
       });
   }
@@ -101,7 +101,7 @@ class ClassDetailsVideoState extends State<ClassDetailsVideo> {
         ),
         color: Colors.black,
         key: globalKey,
-        child: (videoPlayerController.value.isInitialized ?? false)
+        child: (videoPlayerController?.value.isInitialized ?? false)
             ? videoWidget(
                 MediaQuery.of(context).size.height,
                 (MediaQuery.of(context).size.height / 1.44) - 43,
@@ -115,11 +115,11 @@ class ClassDetailsVideoState extends State<ClassDetailsVideo> {
   void dispose() {
     super.dispose();
 
-    chewieAudioController.pause();
-    chewieAudioController.dispose();
+    chewieAudioController?.pause();
+    chewieAudioController?.dispose();
 
-    videoPlayerController.pause();
-    videoPlayerController.dispose();
+    videoPlayerController?.pause();
+    videoPlayerController?.dispose();
   }
 
   Widget videoWidget(double width, double height, src) {
@@ -137,7 +137,7 @@ class ClassDetailsVideoState extends State<ClassDetailsVideo> {
                   height: MediaQuery.of(context).size.width / 1.5,
                   // margin: EdgeInsets.only(top: MediaQuery.of(context).padding.top),
                   child: chewies = Chewie(
-                    controller: chewieAudioController,
+                    controller: chewieAudioController!,
                   ),
                 )
               : Container(
@@ -150,7 +150,7 @@ class ClassDetailsVideoState extends State<ClassDetailsVideo> {
               onTap: () {
                 setState(() {
                   widget.changeShowImg?.call(false);
-                  chewieAudioController.play();
+                  chewieAudioController?.play();
                 });
               },
               child: Container(
@@ -189,7 +189,7 @@ class ClassDetailsVideoState extends State<ClassDetailsVideo> {
   }
 
   Future<void> _fullScreenListener() async {
-    if (!chewieAudioController.isFullScreen) {
+    if (!(chewieAudioController?.isFullScreen ?? false)) {
       Future.delayed(Duration(seconds: 1), () {
         widget.exitFull?.call();
       });
diff --git a/lib/order/order_detail_page.dart b/lib/order/order_detail_page.dart
index e8370049..6efd8440 100644
--- a/lib/order/order_detail_page.dart
+++ b/lib/order/order_detail_page.dart
@@ -113,7 +113,7 @@ class _OrderDetailPage extends State<OrderDetailPage> {
       refreshController.loadFailed();
     });
     if (baseData?.isSuccess ?? false) {
-      orderInfo = baseData!.data;
+      orderInfo = baseData?.data;
       payStatus = orderInfo?.payStatus ?? 0;
       orderStatus = orderInfo?.orderStatus ?? 0;
       sendStatus = orderInfo?.sendStatus ?? 0;