From d202976251dd9d48c4e33cb4defb61bf1e33f5e7 Mon Sep 17 00:00:00 2001
From: Johannes Mockenhaupt <git@jotomo.de>
Date: Fri, 20 Oct 2017 20:15:37 +0200
Subject: [PATCH] PersistentNotification unregister workaround.

---
 .../PersistentNotificationPlugin.java                    | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/info/nightscout/androidaps/plugins/Persistentnotification/PersistentNotificationPlugin.java b/app/src/main/java/info/nightscout/androidaps/plugins/Persistentnotification/PersistentNotificationPlugin.java
index f0745afe94..6c3e45decb 100644
--- a/app/src/main/java/info/nightscout/androidaps/plugins/Persistentnotification/PersistentNotificationPlugin.java
+++ b/app/src/main/java/info/nightscout/androidaps/plugins/Persistentnotification/PersistentNotificationPlugin.java
@@ -191,11 +191,16 @@ public class PersistentNotificationPlugin implements PluginBase {
 
     private void checkBusRegistration() {
         if (fragmentEnabled) {
-            MainApp.bus().register(this);
+            try {
+                MainApp.bus().register(this);
+            } catch (IllegalArgumentException e) {
+                // already registered
+            }
         } else {
             try {
                 MainApp.bus().unregister(this);
-            } catch (Exception e) {
+            } catch (IllegalArgumentException e) {
+                // already unregistered
             }
         }
     }