Merge "[automerger skipped] Merge "Extract android_media_Utils.cpp as a lib" am: d14d29ca8f am: 6c7d8d31e0 am: 1c1577ba63 -s ours am skip reason: change_id I1e1ea4bc1ff7022d8d9c42785c8c00e3ca153a50 with SHA1 cb1e896d57 is in history"
diff --git a/data/etc/com.android.settings.xml b/data/etc/com.android.settings.xml
index 2110a8f..3e53a38 100644
--- a/data/etc/com.android.settings.xml
+++ b/data/etc/com.android.settings.xml
@@ -33,6 +33,7 @@
<permission name="android.permission.MANAGE_USERS"/>
<permission name="android.permission.MANAGE_USER_OEM_UNLOCK_STATE" />
<permission name="android.permission.MASTER_CLEAR"/>
+ <permission name="android.permission.MEDIA_CONTENT_CONTROL"/>
<permission name="android.permission.MODIFY_PHONE_STATE"/>
<permission name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>
<permission name="android.permission.MOVE_PACKAGE"/>
diff --git a/packages/SystemUI/res/drawable/ic_volume_remote.xml b/packages/SettingsLib/res/drawable/ic_volume_remote.xml
similarity index 100%
rename from packages/SystemUI/res/drawable/ic_volume_remote.xml
rename to packages/SettingsLib/res/drawable/ic_volume_remote.xml
diff --git a/packages/SystemUI/res/drawable/ic_volume_remote_mute.xml b/packages/SettingsLib/res/drawable/ic_volume_remote_mute.xml
similarity index 100%
rename from packages/SystemUI/res/drawable/ic_volume_remote_mute.xml
rename to packages/SettingsLib/res/drawable/ic_volume_remote_mute.xml
diff --git a/packages/SettingsLib/src/com/android/settingslib/volume/D.java b/packages/SettingsLib/src/com/android/settingslib/volume/D.java
new file mode 100644
index 0000000..7e0654d
--- /dev/null
+++ b/packages/SettingsLib/src/com/android/settingslib/volume/D.java
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settingslib.volume;
+
+import android.util.Log;
+
+class D {
+ public static boolean BUG = Log.isLoggable("volume", Log.DEBUG);
+}
diff --git a/packages/SystemUI/src/com/android/systemui/volume/MediaSessions.java b/packages/SettingsLib/src/com/android/settingslib/volume/MediaSessions.java
similarity index 84%
rename from packages/SystemUI/src/com/android/systemui/volume/MediaSessions.java
rename to packages/SettingsLib/src/com/android/settingslib/volume/MediaSessions.java
index 8b00eee..4ed1154 100644
--- a/packages/SystemUI/src/com/android/systemui/volume/MediaSessions.java
+++ b/packages/SettingsLib/src/com/android/settingslib/volume/MediaSessions.java
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2015 The Android Open Source Project
+ * Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -14,7 +14,7 @@
* limitations under the License.
*/
-package com.android.systemui.volume;
+package com.android.settingslib.volume;
import android.app.PendingIntent;
import android.content.Context;
@@ -27,7 +27,6 @@
import android.media.MediaMetadata;
import android.media.session.MediaController;
import android.media.session.MediaController.PlaybackInfo;
-import android.media.session.MediaSession;
import android.media.session.MediaSession.QueueItem;
import android.media.session.MediaSession.Token;
import android.media.session.MediaSessionManager;
@@ -41,7 +40,6 @@
import android.util.Log;
import java.io.PrintWriter;
-import java.io.StringWriter;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
@@ -73,16 +71,24 @@
mCallbacks = callbacks;
}
+ /**
+ * Dump to {@code writer}
+ */
public void dump(PrintWriter writer) {
writer.println(getClass().getSimpleName() + " state:");
- writer.print(" mInit: "); writer.println(mInit);
- writer.print(" mRecords.size: "); writer.println(mRecords.size());
+ writer.print(" mInit: ");
+ writer.println(mInit);
+ writer.print(" mRecords.size: ");
+ writer.println(mRecords.size());
int i = 0;
for (MediaControllerRecord r : mRecords.values()) {
dump(++i, writer, r.controller);
}
}
+ /**
+ * init MediaSessions
+ */
public void init() {
if (D.BUG) Log.d(TAG, "init");
// will throw if no permission
@@ -97,12 +103,18 @@
mHandler.sendEmptyMessage(H.UPDATE_SESSIONS);
}
+ /**
+ * Destroy MediaSessions
+ */
public void destroy() {
if (D.BUG) Log.d(TAG, "destroy");
mInit = false;
mMgr.removeOnActiveSessionsChangedListener(mSessionsListener);
}
+ /**
+ * Set volume {@code level} to remote media {@code token}
+ */
public void setVolume(Token token, int level) {
final MediaControllerRecord r = mRecords.get(token);
if (r == null) {
@@ -113,15 +125,17 @@
r.controller.setVolumeTo(level, 0);
}
- private void onRemoteVolumeChangedH(MediaSession.Token sessionToken, int flags) {
+ private void onRemoteVolumeChangedH(Token sessionToken, int flags) {
final MediaController controller = new MediaController(mContext, sessionToken);
- if (D.BUG) Log.d(TAG, "remoteVolumeChangedH " + controller.getPackageName() + " "
- + Util.audioManagerFlagsToString(flags));
+ if (D.BUG) {
+ Log.d(TAG, "remoteVolumeChangedH " + controller.getPackageName() + " "
+ + Util.audioManagerFlagsToString(flags));
+ }
final Token token = controller.getSessionToken();
mCallbacks.onRemoteVolumeChanged(token, flags);
}
- private void onUpdateRemoteControllerH(MediaSession.Token sessionToken) {
+ private void onUpdateRemoteControllerH(Token sessionToken) {
final MediaController controller =
sessionToken != null ? new MediaController(mContext, sessionToken) : null;
final String pkg = controller != null ? controller.getPackageName() : null;
@@ -191,7 +205,8 @@
if (appLabel.length() > 0) {
return appLabel;
}
- } catch (NameNotFoundException e) { }
+ } catch (NameNotFoundException e) {
+ }
return pkg;
}
@@ -240,29 +255,11 @@
}
}
- public static void dumpMediaSessions(Context context) {
- final MediaSessionManager mgr = (MediaSessionManager) context
- .getSystemService(Context.MEDIA_SESSION_SERVICE);
- try {
- final List<MediaController> controllers = mgr.getActiveSessions(null);
- final int N = controllers.size();
- if (D.BUG) Log.d(TAG, N + " controllers");
- for (int i = 0; i < N; i++) {
- final StringWriter sw = new StringWriter();
- final PrintWriter pw = new PrintWriter(sw, true);
- dump(i + 1, pw, controllers.get(i));
- if (D.BUG) Log.d(TAG, sw.toString());
- }
- } catch (SecurityException e) {
- Log.w(TAG, "Not allowed to get sessions", e);
- }
- }
-
private final class MediaControllerRecord extends MediaController.Callback {
- private final MediaController controller;
+ public final MediaController controller;
- private boolean sentRemote;
- private String name;
+ public boolean sentRemote;
+ public String name;
private MediaControllerRecord(MediaController controller) {
this.controller = controller;
@@ -274,8 +271,10 @@
@Override
public void onAudioInfoChanged(PlaybackInfo info) {
- if (D.BUG) Log.d(TAG, cb("onAudioInfoChanged") + Util.playbackInfoToString(info)
- + " sentRemote=" + sentRemote);
+ if (D.BUG) {
+ Log.d(TAG, cb("onAudioInfoChanged") + Util.playbackInfoToString(info)
+ + " sentRemote=" + sentRemote);
+ }
final boolean remote = isRemote(info);
if (!remote && sentRemote) {
mCallbacks.onRemoteRemoved(controller.getSessionToken());
@@ -324,22 +323,22 @@
private final OnActiveSessionsChangedListener mSessionsListener =
new OnActiveSessionsChangedListener() {
- @Override
- public void onActiveSessionsChanged(List<MediaController> controllers) {
- onActiveSessionsUpdatedH(controllers);
- }
- };
+ @Override
+ public void onActiveSessionsChanged(List<MediaController> controllers) {
+ onActiveSessionsUpdatedH(controllers);
+ }
+ };
private final IRemoteVolumeController mRvc = new IRemoteVolumeController.Stub() {
@Override
- public void remoteVolumeChanged(MediaSession.Token sessionToken, int flags)
+ public void remoteVolumeChanged(Token sessionToken, int flags)
throws RemoteException {
mHandler.obtainMessage(H.REMOTE_VOLUME_CHANGED, flags, 0,
sessionToken).sendToTarget();
}
@Override
- public void updateRemoteController(final MediaSession.Token sessionToken)
+ public void updateRemoteController(final Token sessionToken)
throws RemoteException {
mHandler.obtainMessage(H.UPDATE_REMOTE_CONTROLLER, sessionToken).sendToTarget();
}
@@ -361,18 +360,32 @@
onActiveSessionsUpdatedH(mMgr.getActiveSessions(null));
break;
case REMOTE_VOLUME_CHANGED:
- onRemoteVolumeChangedH((MediaSession.Token) msg.obj, msg.arg1);
+ onRemoteVolumeChangedH((Token) msg.obj, msg.arg1);
break;
case UPDATE_REMOTE_CONTROLLER:
- onUpdateRemoteControllerH((MediaSession.Token) msg.obj);
+ onUpdateRemoteControllerH((Token) msg.obj);
break;
}
}
}
+ /**
+ * Callback for remote media sessions
+ */
public interface Callbacks {
+ /**
+ * Invoked when remote media session is updated
+ */
void onRemoteUpdate(Token token, String name, PlaybackInfo pi);
+
+ /**
+ * Invoked when remote media session is removed
+ */
void onRemoteRemoved(Token t);
+
+ /**
+ * Invoked when remote volume is changed
+ */
void onRemoteVolumeChanged(Token token, int flags);
}
diff --git a/packages/SettingsLib/src/com/android/settingslib/volume/Util.java b/packages/SettingsLib/src/com/android/settingslib/volume/Util.java
new file mode 100644
index 0000000..4e770ae
--- /dev/null
+++ b/packages/SettingsLib/src/com/android/settingslib/volume/Util.java
@@ -0,0 +1,187 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settingslib.volume;
+
+import android.content.Context;
+import android.media.AudioManager;
+import android.media.MediaMetadata;
+import android.media.VolumeProvider;
+import android.media.session.MediaController.PlaybackInfo;
+import android.media.session.PlaybackState;
+import android.telephony.TelephonyManager;
+import android.widget.TextView;
+
+import java.util.Objects;
+
+/**
+ * Static helpers for the volume dialog.
+ */
+public class Util {
+
+ private static final int[] AUDIO_MANAGER_FLAGS = new int[]{
+ AudioManager.FLAG_SHOW_UI,
+ AudioManager.FLAG_VIBRATE,
+ AudioManager.FLAG_PLAY_SOUND,
+ AudioManager.FLAG_ALLOW_RINGER_MODES,
+ AudioManager.FLAG_REMOVE_SOUND_AND_VIBRATE,
+ AudioManager.FLAG_SHOW_VIBRATE_HINT,
+ AudioManager.FLAG_SHOW_SILENT_HINT,
+ AudioManager.FLAG_FROM_KEY,
+ AudioManager.FLAG_SHOW_UI_WARNINGS,
+ };
+
+ private static final String[] AUDIO_MANAGER_FLAG_NAMES = new String[]{
+ "SHOW_UI",
+ "VIBRATE",
+ "PLAY_SOUND",
+ "ALLOW_RINGER_MODES",
+ "REMOVE_SOUND_AND_VIBRATE",
+ "SHOW_VIBRATE_HINT",
+ "SHOW_SILENT_HINT",
+ "FROM_KEY",
+ "SHOW_UI_WARNINGS",
+ };
+
+ /**
+ * Extract log tag from {@code c}
+ */
+ public static String logTag(Class<?> c) {
+ final String tag = "vol." + c.getSimpleName();
+ return tag.length() < 23 ? tag : tag.substring(0, 23);
+ }
+
+ /**
+ * Convert media metadata to string
+ */
+ public static String mediaMetadataToString(MediaMetadata metadata) {
+ if (metadata == null) return null;
+ return metadata.getDescription().toString();
+ }
+
+ /**
+ * Convert playback info to string
+ */
+ public static String playbackInfoToString(PlaybackInfo info) {
+ if (info == null) return null;
+ final String type = playbackInfoTypeToString(info.getPlaybackType());
+ final String vc = volumeProviderControlToString(info.getVolumeControl());
+ return String.format("PlaybackInfo[vol=%s,max=%s,type=%s,vc=%s],atts=%s",
+ info.getCurrentVolume(), info.getMaxVolume(), type, vc, info.getAudioAttributes());
+ }
+
+ /**
+ * Convert type of playback info to string
+ */
+ public static String playbackInfoTypeToString(int type) {
+ switch (type) {
+ case PlaybackInfo.PLAYBACK_TYPE_LOCAL:
+ return "LOCAL";
+ case PlaybackInfo.PLAYBACK_TYPE_REMOTE:
+ return "REMOTE";
+ default:
+ return "UNKNOWN_" + type;
+ }
+ }
+
+ /**
+ * Convert state of playback info to string
+ */
+ public static String playbackStateStateToString(int state) {
+ switch (state) {
+ case PlaybackState.STATE_NONE:
+ return "STATE_NONE";
+ case PlaybackState.STATE_STOPPED:
+ return "STATE_STOPPED";
+ case PlaybackState.STATE_PAUSED:
+ return "STATE_PAUSED";
+ case PlaybackState.STATE_PLAYING:
+ return "STATE_PLAYING";
+ default:
+ return "UNKNOWN_" + state;
+ }
+ }
+
+ /**
+ * Convert volume provider control to string
+ */
+ public static String volumeProviderControlToString(int control) {
+ switch (control) {
+ case VolumeProvider.VOLUME_CONTROL_ABSOLUTE:
+ return "VOLUME_CONTROL_ABSOLUTE";
+ case VolumeProvider.VOLUME_CONTROL_FIXED:
+ return "VOLUME_CONTROL_FIXED";
+ case VolumeProvider.VOLUME_CONTROL_RELATIVE:
+ return "VOLUME_CONTROL_RELATIVE";
+ default:
+ return "VOLUME_CONTROL_UNKNOWN_" + control;
+ }
+ }
+
+ /**
+ * Convert {@link PlaybackState} to string
+ */
+ public static String playbackStateToString(PlaybackState playbackState) {
+ if (playbackState == null) return null;
+ return playbackStateStateToString(playbackState.getState()) + " " + playbackState;
+ }
+
+ /**
+ * Convert audio manager flags to string
+ */
+ public static String audioManagerFlagsToString(int value) {
+ return bitFieldToString(value, AUDIO_MANAGER_FLAGS, AUDIO_MANAGER_FLAG_NAMES);
+ }
+
+ protected static String bitFieldToString(int value, int[] values, String[] names) {
+ if (value == 0) return "";
+ final StringBuilder sb = new StringBuilder();
+ for (int i = 0; i < values.length; i++) {
+ if ((value & values[i]) != 0) {
+ if (sb.length() > 0) sb.append(',');
+ sb.append(names[i]);
+ }
+ value &= ~values[i];
+ }
+ if (value != 0) {
+ if (sb.length() > 0) sb.append(',');
+ sb.append("UNKNOWN_").append(value);
+ }
+ return sb.toString();
+ }
+
+ private static CharSequence emptyToNull(CharSequence str) {
+ return str == null || str.length() == 0 ? null : str;
+ }
+
+ /**
+ * Set text for specific {@link TextView}
+ */
+ public static boolean setText(TextView tv, CharSequence text) {
+ if (Objects.equals(emptyToNull(tv.getText()), emptyToNull(text))) return false;
+ tv.setText(text);
+ return true;
+ }
+
+ /**
+ * Return {@code true} if it is voice capable
+ */
+ public static boolean isVoiceCapable(Context context) {
+ final TelephonyManager telephony =
+ (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
+ return telephony != null && telephony.isVoiceCapable();
+ }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/volume/Util.java b/packages/SystemUI/src/com/android/systemui/volume/Util.java
index c6d6218..7edb5a5 100644
--- a/packages/SystemUI/src/com/android/systemui/volume/Util.java
+++ b/packages/SystemUI/src/com/android/systemui/volume/Util.java
@@ -16,52 +16,13 @@
package com.android.systemui.volume;
-import android.content.Context;
import android.media.AudioManager;
-import android.media.MediaMetadata;
-import android.media.VolumeProvider;
-import android.media.session.MediaController.PlaybackInfo;
-import android.media.session.PlaybackState;
-import android.telephony.TelephonyManager;
import android.view.View;
-import android.widget.TextView;
-
-import java.text.SimpleDateFormat;
-import java.util.Date;
-import java.util.Locale;
-import java.util.Objects;
/**
* Static helpers for the volume dialog.
*/
-class Util {
-
- // Note: currently not shown (only used in the text footer)
- private static final SimpleDateFormat HMMAA = new SimpleDateFormat("h:mm aa", Locale.US);
-
- private static int[] AUDIO_MANAGER_FLAGS = new int[] {
- AudioManager.FLAG_SHOW_UI,
- AudioManager.FLAG_VIBRATE,
- AudioManager.FLAG_PLAY_SOUND,
- AudioManager.FLAG_ALLOW_RINGER_MODES,
- AudioManager.FLAG_REMOVE_SOUND_AND_VIBRATE,
- AudioManager.FLAG_SHOW_VIBRATE_HINT,
- AudioManager.FLAG_SHOW_SILENT_HINT,
- AudioManager.FLAG_FROM_KEY,
- AudioManager.FLAG_SHOW_UI_WARNINGS,
- };
-
- private static String[] AUDIO_MANAGER_FLAG_NAMES = new String[] {
- "SHOW_UI",
- "VIBRATE",
- "PLAY_SOUND",
- "ALLOW_RINGER_MODES",
- "REMOVE_SOUND_AND_VIBRATE",
- "SHOW_VIBRATE_HINT",
- "SHOW_SILENT_HINT",
- "FROM_KEY",
- "SHOW_UI_WARNINGS",
- };
+class Util extends com.android.settingslib.volume.Util {
public static String logTag(Class<?> c) {
final String tag = "vol." + c.getSimpleName();
@@ -70,106 +31,19 @@
public static String ringerModeToString(int ringerMode) {
switch (ringerMode) {
- case AudioManager.RINGER_MODE_SILENT: return "RINGER_MODE_SILENT";
- case AudioManager.RINGER_MODE_VIBRATE: return "RINGER_MODE_VIBRATE";
- case AudioManager.RINGER_MODE_NORMAL: return "RINGER_MODE_NORMAL";
- default: return "RINGER_MODE_UNKNOWN_" + ringerMode;
+ case AudioManager.RINGER_MODE_SILENT:
+ return "RINGER_MODE_SILENT";
+ case AudioManager.RINGER_MODE_VIBRATE:
+ return "RINGER_MODE_VIBRATE";
+ case AudioManager.RINGER_MODE_NORMAL:
+ return "RINGER_MODE_NORMAL";
+ default:
+ return "RINGER_MODE_UNKNOWN_" + ringerMode;
}
}
- public static String mediaMetadataToString(MediaMetadata metadata) {
- if (metadata == null) return null;
- return metadata.getDescription().toString();
- }
-
- public static String playbackInfoToString(PlaybackInfo info) {
- if (info == null) return null;
- final String type = playbackInfoTypeToString(info.getPlaybackType());
- final String vc = volumeProviderControlToString(info.getVolumeControl());
- return String.format("PlaybackInfo[vol=%s,max=%s,type=%s,vc=%s],atts=%s",
- info.getCurrentVolume(), info.getMaxVolume(), type, vc, info.getAudioAttributes());
- }
-
- public static String playbackInfoTypeToString(int type) {
- switch (type) {
- case PlaybackInfo.PLAYBACK_TYPE_LOCAL: return "LOCAL";
- case PlaybackInfo.PLAYBACK_TYPE_REMOTE: return "REMOTE";
- default: return "UNKNOWN_" + type;
- }
- }
-
- public static String playbackStateStateToString(int state) {
- switch (state) {
- case PlaybackState.STATE_NONE: return "STATE_NONE";
- case PlaybackState.STATE_STOPPED: return "STATE_STOPPED";
- case PlaybackState.STATE_PAUSED: return "STATE_PAUSED";
- case PlaybackState.STATE_PLAYING: return "STATE_PLAYING";
- default: return "UNKNOWN_" + state;
- }
- }
-
- public static String volumeProviderControlToString(int control) {
- switch (control) {
- case VolumeProvider.VOLUME_CONTROL_ABSOLUTE: return "VOLUME_CONTROL_ABSOLUTE";
- case VolumeProvider.VOLUME_CONTROL_FIXED: return "VOLUME_CONTROL_FIXED";
- case VolumeProvider.VOLUME_CONTROL_RELATIVE: return "VOLUME_CONTROL_RELATIVE";
- default: return "VOLUME_CONTROL_UNKNOWN_" + control;
- }
- }
-
- public static String playbackStateToString(PlaybackState playbackState) {
- if (playbackState == null) return null;
- return playbackStateStateToString(playbackState.getState()) + " " + playbackState;
- }
-
- public static String audioManagerFlagsToString(int value) {
- return bitFieldToString(value, AUDIO_MANAGER_FLAGS, AUDIO_MANAGER_FLAG_NAMES);
- }
-
- private static String bitFieldToString(int value, int[] values, String[] names) {
- if (value == 0) return "";
- final StringBuilder sb = new StringBuilder();
- for (int i = 0; i < values.length; i++) {
- if ((value & values[i]) != 0) {
- if (sb.length() > 0) sb.append(',');
- sb.append(names[i]);
- }
- value &= ~values[i];
- }
- if (value != 0) {
- if (sb.length() > 0) sb.append(',');
- sb.append("UNKNOWN_").append(value);
- }
- return sb.toString();
- }
-
- public static String getShortTime(long millis) {
- return HMMAA.format(new Date(millis));
- }
-
- private static CharSequence emptyToNull(CharSequence str) {
- return str == null || str.length() == 0 ? null : str;
- }
-
- public static boolean setText(TextView tv, CharSequence text) {
- if (Objects.equals(emptyToNull(tv.getText()), emptyToNull(text))) return false;
- tv.setText(text);
- return true;
- }
-
public static final void setVisOrGone(View v, boolean vis) {
if (v == null || (v.getVisibility() == View.VISIBLE) == vis) return;
v.setVisibility(vis ? View.VISIBLE : View.GONE);
}
-
- public static final void setVisOrInvis(View v, boolean vis) {
- if (v == null || (v.getVisibility() == View.VISIBLE) == vis) return;
- v.setVisibility(vis ? View.VISIBLE : View.INVISIBLE);
- }
-
- public static boolean isVoiceCapable(Context context) {
- final TelephonyManager telephony =
- (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
- return telephony != null && telephony.isVoiceCapable();
- }
}
diff --git a/packages/SystemUI/src/com/android/systemui/volume/VolumeDialogControllerImpl.java b/packages/SystemUI/src/com/android/systemui/volume/VolumeDialogControllerImpl.java
index 32bc01c..4c16297 100644
--- a/packages/SystemUI/src/com/android/systemui/volume/VolumeDialogControllerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/volume/VolumeDialogControllerImpl.java
@@ -53,6 +53,7 @@
import android.view.accessibility.AccessibilityManager;
import com.android.internal.annotations.GuardedBy;
+import com.android.settingslib.volume.MediaSessions;
import com.android.systemui.Dumpable;
import com.android.systemui.R;
import com.android.systemui.SysUiServiceProvider;