Added option to either pause or lower volume on transient loss of audio focus

3 files changed, 22 insertions, 4 deletions

diff --git a/subsonic-android/src/github/daneren2005/dsub/activity/SettingsActivity.java b/subsonic-android/src/github/daneren2005/dsub/activity/SettingsActivity.java
index febfedca..82b3cc05 100644
--- a/subsonic-android/src/github/daneren2005/dsub/activity/SettingsActivity.java
+++ b/subsonic-android/src/github/daneren2005/dsub/activity/SettingsActivity.java
@@ -58,6 +58,7 @@ public class SettingsActivity extends PreferenceActivity implements SharedPrefer
     private ListPreference preloadCount;
 	private EditTextPreference randomSize;
 	private EditTextPreference sleepTimerDuration;
+	private ListPreference tempLoss;
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
@@ -73,6 +74,7 @@ public class SettingsActivity extends PreferenceActivity implements SharedPrefer
         preloadCount = (ListPreference) findPreference(Constants.PREFERENCES_KEY_PRELOAD_COUNT);
 		randomSize = (EditTextPreference) findPreference(Constants.PREFERENCES_KEY_RANDOM_SIZE);
 		sleepTimerDuration = (EditTextPreference) findPreference(Constants.PREFERENCES_KEY_SLEEP_TIMER_DURATION);
+		tempLoss = (ListPreference) findPreference(Constants.PREFERENCES_KEY_TEMP_LOSS);
 
         findPreference("testConnection1").setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
             @Override
@@ -161,6 +163,7 @@ public class SettingsActivity extends PreferenceActivity implements SharedPrefer
         preloadCount.setSummary(preloadCount.getEntry());
 		randomSize.setSummary(randomSize.getText());
 		sleepTimerDuration.setSummary(sleepTimerDuration.getText());
+		tempLoss.setSummary(tempLoss.getEntry());
         for (ServerSettings ss : serverSettings.values()) {
             ss.update();
         }
diff --git a/subsonic-android/src/github/daneren2005/dsub/util/Constants.java b/subsonic-android/src/github/daneren2005/dsub/util/Constants.java
index 2d67d3c9..eb0a15fd 100644
--- a/subsonic-android/src/github/daneren2005/dsub/util/Constants.java
+++ b/subsonic-android/src/github/daneren2005/dsub/util/Constants.java
@@ -79,6 +79,7 @@ public final class Constants {
 	public static final String PREFERENCES_KEY_SLEEP_TIMER = "sleepTimer";
 	public static final String PREFERENCES_KEY_SLEEP_TIMER_DURATION = "sleepTimerDuration";
 	public static final String PREFERENCES_KEY_OFFLINE = "offline";
+	public static final String PREFERENCES_KEY_TEMP_LOSS = "tempLoss";
 
     // Name of the preferences file.
     public static final String PREFERENCES_FILE_NAME = "github.daneren2005.dsub_preferences";
diff --git a/subsonic-android/src/github/daneren2005/dsub/util/Util.java b/subsonic-android/src/github/daneren2005/dsub/util/Util.java
index b6ad69bb..53bc54c4 100644
--- a/subsonic-android/src/github/daneren2005/dsub/util/Util.java
+++ b/subsonic-android/src/github/daneren2005/dsub/util/Util.java
@@ -99,6 +99,8 @@ public final class Util {
     public static final String EVENT_PLAYSTATE_CHANGED = "github.daneren2005.dsub.EVENT_PLAYSTATE_CHANGED";
 	
 	private static boolean pauseFocus = false;
+	private static int currentVolume = 0;
+	private static int lossPref = 0;
 
     private static final Map<Integer, Version> SERVER_REST_VERSIONS = new ConcurrentHashMap<Integer, Version>();
 
@@ -746,20 +748,32 @@ public final class Util {
     
     @TargetApi(8)
 	public static void requestAudioFocus(final Context context) {
-    	if (Build.VERSION.SDK_INT >= 8) {
-    		AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
+    	if (Build.VERSION.SDK_INT >= 8) {			
+    		final AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
     		audioManager.requestAudioFocus(new OnAudioFocusChangeListener() {
 				public void onAudioFocusChange(int focusChange) {
 					DownloadServiceImpl downloadService = (DownloadServiceImpl)context;
 					if(focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT || focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK) {
 						if(downloadService.getPlayerState() == PlayerState.STARTED) {
 							pauseFocus = true;
-							downloadService.pause();
+							
+							SharedPreferences prefs = getPreferences(context);
+							lossPref = Integer.parseInt(prefs.getString(Constants.PREFERENCES_KEY_TEMP_LOSS, "0"));
+							if(lossPref > 0) {
+								currentVolume = audioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
+								audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, (int)Math.ceil(currentVolume / (double)lossPref), 0);
+							} else {
+								downloadService.pause();
+							}
 						}
 					} else if (focusChange == AudioManager.AUDIOFOCUS_GAIN) {
 						if(pauseFocus) {
 							pauseFocus = false;
-							downloadService.start();
+							if(lossPref > 0) {
+								audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, currentVolume, 0);
+							} else {
+								downloadService.start();
+							}
 						}
 					}
 				}