fix: 分p视频新增列表滑动

lib/pages/video/detail/introduction/widgets/page.dart

@@ -1,3 +1,5 @@
+import 'dart:math';
+
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:PiliPalaX/models/video_detail_res.dart';
@@ -27,6 +29,7 @@ class _PagesPanelState extends State<PagesPanel> {
   final String heroTag = Get.arguments['heroTag'];
   late VideoDetailController _videoDetailController;
   final ScrollController _scrollController = ScrollController();
+  final ScrollController _scrollController2 = ScrollController();
 
   @override
   void initState() {
@@ -43,8 +46,17 @@ class _PagesPanelState extends State<PagesPanel> {
   }
 
   void changeFucCall(item, i) async {
-    await widget.changeFuc!(
-      item.cid,
+    await widget.changeFuc!(item.cid);
+
+    const double itemWidth = 150; // 每个列表项的宽度
+    final double targetOffset = min((i * itemWidth) - (itemWidth / 2),
+        _scrollController2.position.maxScrollExtent);
+
+    // 滑动至目标位置
+    _scrollController2.animateTo(
+      targetOffset,
+      duration: const Duration(milliseconds: 300), // 滑动动画持续时间
+      curve: Curves.easeInOut, // 滑动动画曲线
     );
     currentIndex = i;
     setState(() {});
@@ -207,6 +219,7 @@ class _PagesPanelState extends State<PagesPanel> {
           height: 35,
           margin: const EdgeInsets.only(bottom: 8),
           child: ListView.builder(
+            controller: _scrollController2,
             scrollDirection: Axis.horizontal,
             itemCount: widget.pages.length,
             itemExtent: 150,