1、增加onFinishPage回调方法（页面关闭）；

lib/widget/complaint_web_view.dart

@@ -18,8 +18,9 @@ import '../utils/toast_util.dart';
 /// 反馈投诉
 class ComplaintWebPage extends StatefulWidget {
   final String? url; // 网页地址
+  final VoidCallback? onFinishPage; // 关闭页面回调方法
 
-  const ComplaintWebPage({super.key, required this.url});
+  const ComplaintWebPage({super.key, required this.url, this.onFinishPage});
 
   @override
   State<ComplaintWebPage> createState() => _ComplaintWebPageState();
@@ -199,6 +200,7 @@ class _ComplaintWebPageState extends State<ComplaintWebPage> {
   _finishPage(String? msg) {
     debugPrint("finishPage：");
     Navigator.pop(context);
+    widget.onFinishPage?.call();
   }
 
   /// 展示toast