From 265eb83ec603adf15a9aee813a10d58ecdbab867 Mon Sep 17 00:00:00 2001
From: deyihu <mehudeyi@163.com>
Date: Mon, 22 Apr 2024 16:12:35 +0800
Subject: [PATCH] fix UIComponent warn when  _bindDomEvents

---
 src/ui/UIComponent.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/ui/UIComponent.ts b/src/ui/UIComponent.ts
index f8c906dbf7..fde3e6cbbc 100644
--- a/src/ui/UIComponent.ts
+++ b/src/ui/UIComponent.ts
@@ -936,6 +936,10 @@ class UIComponent extends Eventable(Class) {
         const events = this._getDomEvents() || {};
         const bindEvent = to === 'on' ? on : off;
         for (const eventName in events) {
+            if (to === 'on') {
+                //remove old  handler
+                off(dom, eventName, events[eventName]);
+            }
             bindEvent(dom, eventName, events[eventName], this);
         }
     }