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Commit 9903e263 authored by Eric Laurent's avatar Eric Laurent
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Volume keys control music volume after music stops 

On phones, add a short delay during which volume keys still
control music volume after music has stopped. This is similar
to the tablet behavior for notifications volume.
It allows users to control the prompt volume for talk back,
voice search or navigation even after the prompt has stopped.

Bug 7162364.

Change-Id: Iffbca9ec30ebcbe5846f783ddd260b6e736caf2b
parent f98db0de

media/java/android/media/AudioService.java

+8 −5
Original line number Diff line number Diff line
@@ -387,9 +387,11 @@ public class AudioService extends IAudioService.Stub implements OnFinished { 
    private Looper mSoundPoolLooper = null;

    // volume applied to sound played with playSoundEffect()

    private static int sSoundEffectVolumeDb;

    // getActiveStreamType() will return STREAM_NOTIFICATION during this period after a notification

    // getActiveStreamType() will return:

    // - STREAM_NOTIFICATION on tablets during this period after a notification stopped

    // - STREAM_MUSIC on phones during this period after music or talkback/voice search prompt

    // stopped

    private static final int NOTIFICATION_VOLUME_DELAY_MS = 5000;

    private static final int DEFAULT_STREAM_TYPE_OVERRIDE_DELAY_MS = 5000;

    // previous volume adjustment direction received by checkForRingerModeChange()

    private int mPrevVolDirection = AudioManager.ADJUST_SAME;

    // Keyguard manager proxy
@@ -2340,7 +2342,8 @@ public class AudioService extends IAudioService.Stub implements OnFinished { 
                    if (DEBUG_VOL)

                        Log.v(TAG, "getActiveStreamType: Forcing STREAM_REMOTE_MUSIC");

                    return STREAM_REMOTE_MUSIC;

                } else if (AudioSystem.isStreamActive(AudioSystem.STREAM_MUSIC, 0)) {

                } else if (AudioSystem.isStreamActive(AudioSystem.STREAM_MUSIC,

                            DEFAULT_STREAM_TYPE_OVERRIDE_DELAY_MS)) {

                    if (DEBUG_VOL)

                        Log.v(TAG, "getActiveStreamType: Forcing STREAM_MUSIC stream active");

                    return AudioSystem.STREAM_MUSIC;
@@ -2369,9 +2372,9 @@ public class AudioService extends IAudioService.Stub implements OnFinished { 
                    return AudioSystem.STREAM_VOICE_CALL;

                }

            } else if (AudioSystem.isStreamActive(AudioSystem.STREAM_NOTIFICATION,

                    NOTIFICATION_VOLUME_DELAY_MS) ||

                    DEFAULT_STREAM_TYPE_OVERRIDE_DELAY_MS) ||

                    AudioSystem.isStreamActive(AudioSystem.STREAM_RING,

                            NOTIFICATION_VOLUME_DELAY_MS)) {

                            DEFAULT_STREAM_TYPE_OVERRIDE_DELAY_MS)) {

                if (DEBUG_VOL) Log.v(TAG, "getActiveStreamType: Forcing STREAM_NOTIFICATION");

                return AudioSystem.STREAM_NOTIFICATION;

            } else if (suggestedStreamType == AudioManager.USE_DEFAULT_STREAM_TYPE) {