增加权限申请

lib/widget/complaint_web_view.dart

@@ -153,6 +153,12 @@ class _ComplaintWebPageState extends State<ComplaintWebPage> {
                   TextButton(
                     child: const Text("确定"),
                     onPressed: () async {
+                      final permissions = await Permission.camera.request();
+                      if (permissions.isGranted) {
+                        debugPrint("相机权限申请成功");
+                      } else {
+                        ToastUtil.showToast('需要相机权限!');
+                      }
                       Navigator.pop(context);
                     },
                   ),