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improve handling of AudioManager.AUDIOFOCUS_LOSS_TRANSIENT

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This commit is contained in:
Adrian Ulrich 2015-09-14 20:24:07 +02:00
parent 61bcb9857a
commit 3cfb1633fb
1 changed files with 15 additions and 9 deletions
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24
src/ch/blinkenlights/android/vanilla/PlaybackService.java
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@ -356,9 +356,9 @@ public final class PlaybackService extends Service
*/
private long mIdleStart = -1;
/**
* True if the last audio focus loss can be ducked.
* True if we encountered a transient audio loss
*/
private boolean mDuckedLoss;
private boolean mTransientAudioLoss;
/**
* Magnitude of last sensed acceleration.
*/
@ -2038,23 +2038,29 @@ public final class PlaybackService extends Service
Log.d("VanillaMusic", "audio focus change: " + type);
switch (type) {
case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK:
case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT:
synchronized (mStateLock) {
mDuckedLoss = (mState & FLAG_PLAYING) != 0;
if(mDuckedLoss) {
setFlag(FLAG_DUCKING);
mTransientAudioLoss = (mState & FLAG_PLAYING) != 0;
if(mTransientAudioLoss) {
if (type == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK) {
setFlag(FLAG_DUCKING);
} else {
unsetFlag(FLAG_PLAYING);
}
}
break;
}
case AudioManager.AUDIOFOCUS_LOSS:
case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT:
mDuckedLoss = false;
mTransientAudioLoss = false;
mForceNotificationVisible = true;
unsetFlag(FLAG_PLAYING);
break;
case AudioManager.AUDIOFOCUS_GAIN:
if (mDuckedLoss) {
mDuckedLoss = false;
if (mTransientAudioLoss) {
mTransientAudioLoss = false;
// Restore all flags possibly changed by AUDIOFOCUS_LOSS_TRANSIENT_*
unsetFlag(FLAG_DUCKING);
setFlag(FLAG_PLAYING);
}
break;
}