From 76064182b583c79f8fcaa81d7df62cb35db6f3a8 Mon Sep 17 00:00:00 2001
From: haolihi <1252445494@qq.com>
Date: Thu, 1 Dec 2022 16:21:22 +0800
Subject: [PATCH] =?UTF-8?q?=E8=A7=A3=E5=86=B3=E6=96=B0=E9=97=BB=E8=AF=A6?=
 =?UTF-8?q?=E6=83=85=E9=A1=B5=E8=BF=94=E5=9B=9E=E4=B8=BB=E9=A1=B5=E9=97=AA?=
 =?UTF-8?q?=E9=80=80=E9=97=AE=E9=A2=98=EF=BC=8C#19598?=
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Signed-off-by: haolihi <1252445494@qq.com>
---
 .../entry/src/main/js/MainAbility/pages/detail/detail.js      | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Distributed/NewsDemo/entry/src/main/js/MainAbility/pages/detail/detail.js b/Distributed/NewsDemo/entry/src/main/js/MainAbility/pages/detail/detail.js
index cbeacd77..0486ddbd 100644
--- a/Distributed/NewsDemo/entry/src/main/js/MainAbility/pages/detail/detail.js
+++ b/Distributed/NewsDemo/entry/src/main/js/MainAbility/pages/detail/detail.js
@@ -110,6 +110,8 @@ export default {
   },
 
   onDestroy() {
-    this.deviceMag.release();
+    if (this.deviceMag !== null && JSON.stringify(this.deviceMag) !== '{}') {
+      this.deviceMag.release();
+    }
   }
 };
-- 
Gitee