From 51cf7a6711e9873274504bf81d088a77c25efa0b Mon Sep 17 00:00:00 2001
From: Sylvain Berfini <sylvain.berfini@belledonne-communications.com>
Date: Fri, 11 Feb 2022 09:22:52 +0100
Subject: [PATCH] It seems callAudioState property on TelecomManager Connection
 can return null...

---
 .../java/org/linphone/compatibility/Api26Compatibility.kt | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/app/src/main/java/org/linphone/compatibility/Api26Compatibility.kt b/app/src/main/java/org/linphone/compatibility/Api26Compatibility.kt
index f49e1bdd3..a6e7be818 100644
--- a/app/src/main/java/org/linphone/compatibility/Api26Compatibility.kt
+++ b/app/src/main/java/org/linphone/compatibility/Api26Compatibility.kt
@@ -259,10 +259,16 @@ class Api26Compatibility {
 
         fun changeAudioRouteForTelecomManager(connection: NativeCallWrapper, route: Int): Boolean {
             Log.i("[Telecom Helper] Changing audio route [$route] on connection ${connection.callId}")
-            if (connection.callAudioState.route == route) {
+
+            val audioState = connection.callAudioState
+            if (audioState != null && audioState.route == route) {
                 Log.w("[Telecom Helper] Connection is already using this route")
                 return false
+            } else if (audioState == null) {
+                Log.w("[Telecom Helper] Failed to retrieve connection's call audio state!")
+                return false
             }
+
             connection.setAudioRoute(route)
             return true
         }