处理异常

marking_app/lib/common/model/event_bus/jobs/job_do_synchro_tab.dart

@@ -1,3 +1,4 @@
+import 'package:collection/collection.dart';
 import 'package:json_annotation/json_annotation.dart';
 import 'package:marking_app/common/model/job/job_page_tab.dart';
 
@@ -14,14 +15,21 @@ class JobDoSynchroTab extends Object {
   Map<String, dynamic> toJson() => _$JobDoSynchroTabToJson(this);
 
   /// 当前tab下一个tab的pageIndex
-  int? getNextPageIndex([int? indexLocated]) {
+  int? getNextPageIndex([int? pageIndex]) {
-    if (indexLocated == null) return null;
+    if (pageIndex == null) return null;
-    return indexLocated == tabs.length - 1 ? null : tabs[indexLocated + 1].pageIndex;
+    var _index = tabs.indexWhere((e) => e.pageIndex == pageIndex);
+    if (_index == -1) return null;
+
+    return _index == tabs.length - 1 ? null : tabs[_index + 1].pageIndex;
   }
 
   /// 当前tab上一个tab的pageIndex
-  int? getPreviousPageIndex([int? indexLocated]) {
+  int? getPreviousPageIndex([int? pageIndex]) {
-    if (indexLocated == null) return null;
+    if (pageIndex == null) return null;
-    return indexLocated == 0 ? null : tabs[indexLocated - 1].pageIndex;
+    var _index = tabs.indexWhere((e) => e.pageIndex == pageIndex);
+    if (_index == -1) return null;
+    pageIndex = _index == 0 ? null : tabs[_index - 1].pageIndex;
+    print('这是上一页的数据：${pageIndex}');
+    return pageIndex;
   }
 }

marking_app/lib/pages/homework_correction/do_papers_job.dart

@@ -579,8 +579,8 @@ class _EexamPaperAndScoringViewState extends ConsumerState<ExamPaperAndScoringVi
         var jobDetails = _result.data;
         theJobData = jobDetails;
         if (jobDetails != null) {
-          jobDetails.previousPageIndex = synchroTabs?.getPreviousPageIndex(jobDetails.pageIndex - 1);
+          jobDetails.previousPageIndex = synchroTabs?.getPreviousPageIndex(jobDetails.pageIndex);
-          jobDetails.nextPageIndex = synchroTabs?.getNextPageIndex(jobDetails.pageIndex - 1);
+          jobDetails.nextPageIndex = synchroTabs?.getNextPageIndex(jobDetails.pageIndex);
           // 触发学生下拉选中
           try {
             // 清空已有数据