From 4e64b09ad6fd0c2d1a908a638d81552ed0c3bbc5 Mon Sep 17 00:00:00 2001
From: Michael Kirk <michael.code@endoftheworl.de>
Date: Mon, 5 Mar 2018 20:45:23 -0500
Subject: [PATCH] Don't set audio to ambient while other audioActivity exists

// FREEBIE
---
 SignalMessaging/environment/OWSAudioSession.swift | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/SignalMessaging/environment/OWSAudioSession.swift b/SignalMessaging/environment/OWSAudioSession.swift
index 62a5baa62..d6d60d2d6 100644
--- a/SignalMessaging/environment/OWSAudioSession.swift
+++ b/SignalMessaging/environment/OWSAudioSession.swift
@@ -40,6 +40,12 @@ public class OWSAudioSession: NSObject {
         
         startAudioActivity(audioActivity)
         
+        guard currentActivities.count == 0 else {
+            // We don't want to clobber the audio capabilities configured by (e.g.) media playback or an in-progress call
+            Logger.info("\(logTag) in \(#function) not touching audio session since another currentActivity exists.")
+            return
+        }
+        
         do {
             try avAudioSession.setCategory(AVAudioSessionCategoryAmbient)
         } catch {