From ef91313681ba7fdc0f2e67b581d2122a9ddc0820 Mon Sep 17 00:00:00 2001
From: wuxiang <wuxiang@shuto.cn>
Date: Sun, 26 Sep 2021 15:24:35 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A4=84=E7=90=86=20unregister=20=E5=8F=AF?=
 =?UTF-8?q?=E8=83=BD=E7=9A=84=E9=97=AE=E9=A2=98?=
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---
 src/android/RedLightScan.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/android/RedLightScan.java b/src/android/RedLightScan.java
index 05646a0..dffe554 100644
--- a/src/android/RedLightScan.java
+++ b/src/android/RedLightScan.java
@@ -91,7 +91,9 @@ public class RedLightScan extends CordovaPlugin {
     }
 
     private void unregisterReceiver() {
-        webView.getContext().unregisterReceiver(receiver);
+        if (receiver != null) {
+            webView.getContext().unregisterReceiver(receiver);
+        }
     }
 
     @Override