From 64a370c701bc8ea477f4e555bdcc715ef8509a28 Mon Sep 17 00:00:00 2001
From: "pengfei.zhou" <pengfeizhou@foxmail.com>
Date: Fri, 15 Jul 2022 14:31:10 +0800
Subject: [PATCH] iOS: add protection when scrollToPosition

---
 doric-iOS/Pod/Classes/Shader/DoricListNode.m | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/doric-iOS/Pod/Classes/Shader/DoricListNode.m b/doric-iOS/Pod/Classes/Shader/DoricListNode.m
index 9bc12272..2dc675b3 100644
--- a/doric-iOS/Pod/Classes/Shader/DoricListNode.m
+++ b/doric-iOS/Pod/Classes/Shader/DoricListNode.m
@@ -174,7 +174,10 @@ - (void)blendView:(UITableView *)view forPropName:(NSString *)name propValue:(id
         self.onScrollEndFuncId = prop;
     } else if ([@"scrolledPosition" isEqualToString:name]) {
         dispatch_async(dispatch_get_main_queue(), ^{
-            [view scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:[prop unsignedIntegerValue] inSection:0] atScrollPosition:UITableViewScrollPositionTop animated:NO];
+            NSUInteger pos = [prop unsignedIntegerValue];
+            if (pos < self.rowCount && pos >= 0) {
+                [view scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:pos inSection:0] atScrollPosition:UITableViewScrollPositionTop animated:NO];
+            }
         });
     } else if ([@"canDrag" isEqualToString:name]) {
         bool canDrag = [prop boolValue];