opt: jumpTo rebound

lib/common/pages_bottom_sheet.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:flutter/widgets.dart';
 import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
 import 'package:get/get.dart';
 import 'package:pilipala/common/constants.dart';
@@ -98,7 +99,8 @@ class _PagesBottomSheetState extends State<PagesBottomSheet>
     with TickerProviderStateMixin {
   final ScrollController _listScrollController = ScrollController();
   late ListObserverController _listObserverController;
-  final ScrollController _scrollController = ScrollController();
+  late GridObserverController _gridObserverController;
+  final ScrollController _gridScrollController = ScrollController();
   late int currentIndex;
   TabController? tabController;
   List<ListObserverController>? _listObserverControllerList;
@@ -163,6 +165,9 @@ class _PagesBottomSheetState extends State<PagesBottomSheet>
           );
         },
       );
+    } else {
+      _gridObserverController =
+          GridObserverController(controller: _gridScrollController);
     }
   }
 
@@ -185,18 +190,12 @@ class _PagesBottomSheetState extends State<PagesBottomSheet>
           );
         }
       }
+    } else {
+      _gridObserverController.initialIndexModel = ObserverIndexPositionModel(
+        index: currentIndex,
+        isFixedHeight: false,
+      );
     }
-
-    WidgetsBinding.instance.addPostFrameCallback((_) {
-      if (widget.dataType != VideoEpidoesType.videoEpisode) {
-        double itemHeight = (widget.isFullScreen
-                ? 400
-                : Get.size.width - 3 * StyleString.safeSpace) /
-            5.2;
-        double offset = ((currentIndex - 1) / 2).ceil() * itemHeight;
-        _scrollController.jumpTo(offset);
-      }
-    });
   }
 
   // 获取订阅状态
@@ -236,7 +235,9 @@ class _PagesBottomSheetState extends State<PagesBottomSheet>
   void dispose() {
     try {
       _listObserverController.controller?.dispose();
+      _gridObserverController.controller?.dispose();
       _listScrollController.dispose();
+      _gridScrollController.dispose();
       for (var element in _listObserverControllerList!) {
         element.controller?.dispose();
       }
@@ -303,8 +304,10 @@ class _PagesBottomSheetState extends State<PagesBottomSheet>
                     : Padding(
                         padding: const EdgeInsets.symmetric(
                             horizontal: 12.0), // 设置左右间距为12
+                        child: GridViewObserver(
+                          controller: _gridObserverController,
                           child: GridView.count(
-                          controller: _scrollController,
+                            controller: _gridScrollController,
                             crossAxisCount: 2,
                             crossAxisSpacing: StyleString.safeSpace,
                             childAspectRatio: 2.6,
@@ -326,6 +329,7 @@ class _PagesBottomSheetState extends State<PagesBottomSheet>
                         ),
                       ),
               ),
+            ),
           ],
         ),
       );