Added null check for dispose

t3knomanzer · Sep 7, 2020 · aed1bb0 · aed1bb0
1 parent c634895
commit aed1bb0
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/Desktop/Application/MaxMix/Services/Audio/AudioSession.cs b/Desktop/Application/MaxMix/Services/Audio/AudioSession.cs
@@ -151,10 +151,13 @@ private void OnStateChanged(object sender, AudioSessionStateChangedEventArgs e)
         #region IDisposable
         public void Dispose()
         {
-            _events.StateChanged -= OnStateChanged;
-            _events.SimpleVolumeChanged -= OnVolumeChanged;
+            if (_events != null)
+            {
+                _events.StateChanged -= OnStateChanged;
+                _events.SimpleVolumeChanged -= OnVolumeChanged;
 
-            Session.UnregisterAudioSessionNotification(_events);
+                Session.UnregisterAudioSessionNotification(_events);
+            }
             Session = null;
             _session2 = null;
             _simpleAudio = null;