From 7bf38aa398569e8ad835632de4c93004d66fa7e1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=90=B4=E7=94=9F=E4=B8=9C?= <1757171296@qq.com>
Date: Thu, 18 Jul 2024 10:00:28 +0800
Subject: [PATCH] the engine wis double free because of the invalid use of '?'
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Signed-off-by: 吴生东 <1757171296@qq.com>
---
 .../entry/src/main/ets/pages/EngineBindings.ets               | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/add_to_app/multiple_flutters/multiple_flutters_ohos/entry/src/main/ets/pages/EngineBindings.ets b/add_to_app/multiple_flutters/multiple_flutters_ohos/entry/src/main/ets/pages/EngineBindings.ets
index 289398e7..38061027 100644
--- a/add_to_app/multiple_flutters/multiple_flutters_ohos/entry/src/main/ets/pages/EngineBindings.ets
+++ b/add_to_app/multiple_flutters/multiple_flutters_ohos/entry/src/main/ets/pages/EngineBindings.ets
@@ -92,7 +92,9 @@ export class EngineBindings implements DataModelObserver {
 
   detach() {
     this.flutterView.detachFromFlutterEngine();
-    this.engine?.destroy();
+    if(this.flutterView.isAttachedToFlutterEngine()){
+      this.engine?.destroy();
+    }
     DataModel.instance.removeObserver(this);
     this.channel?.setMethodCallHandler(null);
   }
-- 
Gitee