From e8eb2458996053a1350048d3b85b079db77242f8 Mon Sep 17 00:00:00 2001
From: Tony Tam <149837+tonytamsf@users.noreply.github.com>
Date: Sun, 11 Jul 2021 10:36:02 -0700
Subject: [PATCH] Handle bluetooth and headphone disconnect (#4722)

---
 .../core/service/playback/PlaybackService.java   | 16 ++++++++--------
 .../playback/PlaybackServiceMediaPlayer.java     |  6 ++++++
 2 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/core/src/main/java/de/danoeh/antennapod/core/service/playback/PlaybackService.java b/core/src/main/java/de/danoeh/antennapod/core/service/playback/PlaybackService.java
index 4f3962efd..ef4e28448 100644
--- a/core/src/main/java/de/danoeh/antennapod/core/service/playback/PlaybackService.java
+++ b/core/src/main/java/de/danoeh/antennapod/core/service/playback/PlaybackService.java
@@ -1485,7 +1485,6 @@ public class PlaybackService extends MediaBrowserServiceCompat {
             Log.d(TAG, "Received Auto Connection update: " + status);
             if (!isConnectedToCar) {
                 Log.d(TAG, "Car was unplugged during playback.");
-                pauseIfPauseOnDisconnect();
             } else {
                 PlayerStatus playerStatus = mediaPlayer.getPlayerStatus();
                 if (playerStatus == PlayerStatus.PAUSED || playerStatus == PlayerStatus.PREPARED) {
@@ -1519,11 +1518,10 @@ public class PlaybackService extends MediaBrowserServiceCompat {
 
             if (TextUtils.equals(intent.getAction(), Intent.ACTION_HEADSET_PLUG)) {
                 int state = intent.getIntExtra("state", -1);
+                Log.d(TAG, "Headset plug event. State is " + state);
                 if (state != -1) {
-                    Log.d(TAG, "Headset plug event. State is " + state);
                     if (state == UNPLUGGED) {
                         Log.d(TAG, "Headset was unplugged during playback.");
-                        pauseIfPauseOnDisconnect();
                     } else if (state == PLUGGED) {
                         Log.d(TAG, "Headset was plugged in during playback.");
                         unpauseIfPauseOnDisconnect(false);
@@ -1556,18 +1554,16 @@ public class PlaybackService extends MediaBrowserServiceCompat {
             Log.d(TAG, "Pausing playback because audio is becoming noisy");
             pauseIfPauseOnDisconnect();
         }
-        // android.media.AUDIO_BECOMING_NOISY
     };
 
     /**
      * Pauses playback if PREF_PAUSE_ON_HEADSET_DISCONNECT was set to true.
      */
     private void pauseIfPauseOnDisconnect() {
+        Log.d(TAG, "pauseIfPauseOnDisconnect()");
         if (UserPreferences.isPauseOnHeadsetDisconnect() && !isCasting()) {
-            if (mediaPlayer.getPlayerStatus() == PlayerStatus.PLAYING) {
-                transientPause = true;
-            }
-            mediaPlayer.pause(!UserPreferences.isPersistNotify(), true);
+            transientPause = true;
+            mediaPlayer.pause(!UserPreferences.isPersistNotify(), false);
         }
     }
 
@@ -1575,6 +1571,10 @@ public class PlaybackService extends MediaBrowserServiceCompat {
      * @param bluetooth true if the event for unpausing came from bluetooth
      */
     private void unpauseIfPauseOnDisconnect(boolean bluetooth) {
+        if (mediaPlayer.isAudioChannelInUse()) {
+            Log.d(TAG, "unpauseIfPauseOnDisconnect() audio is in use");
+            return;
+        }
         if (transientPause) {
             transientPause = false;
             if (!bluetooth && UserPreferences.isUnpauseOnHeadsetReconnect()) {
diff --git a/core/src/main/java/de/danoeh/antennapod/core/service/playback/PlaybackServiceMediaPlayer.java b/core/src/main/java/de/danoeh/antennapod/core/service/playback/PlaybackServiceMediaPlayer.java
index 8d9135a3a..e093383b9 100644
--- a/core/src/main/java/de/danoeh/antennapod/core/service/playback/PlaybackServiceMediaPlayer.java
+++ b/core/src/main/java/de/danoeh/antennapod/core/service/playback/PlaybackServiceMediaPlayer.java
@@ -1,6 +1,7 @@
 package de.danoeh.antennapod.core.service.playback;
 
 import android.content.Context;
+import android.media.AudioManager;
 import android.net.wifi.WifiManager;
 import androidx.annotation.NonNull;
 import androidx.annotation.StringRes;
@@ -330,6 +331,11 @@ public abstract class PlaybackServiceMediaPlayer {
         callback.statusChanged(new PSMPInfo(oldPlayerStatus, playerStatus, getPlayable()));
     }
 
+    public boolean isAudioChannelInUse() {
+        AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
+        return (audioManager.getMode() != AudioManager.MODE_NORMAL || audioManager.isMusicActive());
+    }
+
     /**
      * @see #setPlayerStatus(PlayerStatus, Playable, int)
      */