Persist master volume mute across reboot (c1205111) · Commits · e / os / android_frameworks_base

core/java/android/os/UserManager.java

+10 −0

Original line number	Diff line number	Diff line
		@@ -579,6 +579,16 @@ public class UserManager {
		*/
		public static final String DISALLOW_CAMERA = "no_camera";

		/**
		* Specifies if a user is not allowed to unmute the device's master volume.
		*
		* @see DevicePolicyManager#setMasterVolumeMuted(ComponentName, boolean)
		* @see DevicePolicyManager#clearUserRestriction(ComponentName, String)
		* @see #getUserRestrictions()
		* @hide
		*/
		public static final String DISALLLOW_UNMUTE_DEVICE = "disallow_unmute_device";

		/**
		* Specifies if a user is not allowed to use cellular data when roaming. This can only be set by
		* device owners. The default value is <code>false</code>.

+9 −4

Original line number	Diff line number	Diff line
		@@ -1130,8 +1130,11 @@ public class AudioService extends IAudioService.Stub {
		final int currentUser = getCurrentUserId();

		// Check the current user restriction.
		boolean masterMute = mUserManagerInternal.getUserRestriction(
		currentUser, UserManager.DISALLOW_ADJUST_VOLUME);
		boolean masterMute =
		mUserManagerInternal.getUserRestriction(currentUser,
		UserManager.DISALLLOW_UNMUTE_DEVICE)
		\|\| mUserManagerInternal.getUserRestriction(currentUser,
		UserManager.DISALLOW_ADJUST_VOLUME);
		if (mUseFixedVolume) {
		masterMute = false;
		AudioSystem.setMasterVolume(1.0f);
		@@ -5380,9 +5383,11 @@ public class AudioService extends IAudioService.Stub {
		// Update speaker mute state.
		{
		final boolean wasRestricted =
		prevRestrictions.getBoolean(UserManager.DISALLOW_ADJUST_VOLUME);
		prevRestrictions.getBoolean(UserManager.DISALLOW_ADJUST_VOLUME)
		\|\| prevRestrictions.getBoolean(UserManager.DISALLLOW_UNMUTE_DEVICE);
		final boolean isRestricted =
		newRestrictions.getBoolean(UserManager.DISALLOW_ADJUST_VOLUME);
		newRestrictions.getBoolean(UserManager.DISALLOW_ADJUST_VOLUME)
		\|\| newRestrictions.getBoolean(UserManager.DISALLLOW_UNMUTE_DEVICE);
		if (wasRestricted != isRestricted) {
		setMasterMuteInternalNoCallerCheck(isRestricted, /* flags =*/ 0, userId);
		}

+5 −2

Original line number	Diff line number	Diff line
		@@ -105,7 +105,8 @@ public class UserRestrictionsUtils {
		UserManager.DISALLOW_DATA_ROAMING,
		UserManager.DISALLOW_SET_USER_ICON,
		UserManager.DISALLOW_SET_WALLPAPER,
		UserManager.DISALLOW_OEM_UNLOCK
		UserManager.DISALLOW_OEM_UNLOCK,
		UserManager.DISALLLOW_UNMUTE_DEVICE,
		});

		/**
		@@ -150,7 +151,8 @@ public class UserRestrictionsUtils {
		private static final Set<String> GLOBAL_RESTRICTIONS = Sets.newArraySet(
		UserManager.DISALLOW_ADJUST_VOLUME,
		UserManager.DISALLOW_RUN_IN_BACKGROUND,
		UserManager.DISALLOW_UNMUTE_MICROPHONE
		UserManager.DISALLOW_UNMUTE_MICROPHONE,
		UserManager.DISALLLOW_UNMUTE_DEVICE
		);

		/**
		@@ -436,6 +438,7 @@ public class UserRestrictionsUtils {
		manager.setOemUnlockEnabled(false);
		}
		}
		break;
		}
		} finally {
		Binder.restoreCallingIdentity(id);

+1 −11

Original line number	Diff line number	Diff line
		@@ -7930,17 +7930,7 @@ public class DevicePolicyManagerService extends IDevicePolicyManager.Stub {
		Preconditions.checkNotNull(who, "ComponentName is null");
		synchronized (this) {
		getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
		int userId = UserHandle.getCallingUserId();
		long identity = mInjector.binderClearCallingIdentity();
		try {
		IAudioService iAudioService = IAudioService.Stub.asInterface(
		ServiceManager.getService(Context.AUDIO_SERVICE));
		iAudioService.setMasterMute(on, 0, mContext.getPackageName(), userId);
		} catch (RemoteException re) {
		Slog.e(LOG_TAG, "Failed to setMasterMute", re);
		} finally {
		mInjector.binderRestoreCallingIdentity(identity);
		}
		setUserRestriction(who, UserManager.DISALLLOW_UNMUTE_DEVICE, on);
		}
		}