Save and restore master volume in the settings provider (8517e46f) · Commits · e / os / android_frameworks_base

core/java/android/provider/Settings.java

+6 −0

Original line number	Diff line number	Diff line
		@@ -1498,6 +1498,12 @@ public final class Settings {
		*/
		public static final String VOLUME_BLUETOOTH_SCO = "volume_bluetooth_sco";

		/**
		* Master volume (float in the range 0.0f to 1.0f).
		* @hide
		*/
		public static final String VOLUME_MASTER = "volume_master";

		/**
		* Whether the notifications should use the ring volume (value of 1) or a separate
		* notification volume (value of 0). In most cases, users will have this enabled so the

+12 −0

Original line number	Diff line number	Diff line
		@@ -404,6 +404,15 @@ public class AudioService extends IAudioService.Stub {
		TelephonyManager tmgr = (TelephonyManager)
		context.getSystemService(Context.TELEPHONY_SERVICE);
		tmgr.listen(mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE);

		if (context.getResources().getBoolean(
		com.android.internal.R.bool.config_useMasterVolume)) {
		float volume = Settings.System.getFloat(mContentResolver,
		Settings.System.VOLUME_MASTER, -1.0f);
		if (volume >= 0.0f) {
		AudioSystem.setMasterVolume(volume);
		}
		}
		}

		private void createAudioSystemThread() {
		@@ -619,6 +628,9 @@ public class AudioService extends IAudioService.Stub {
		if (volume < 0.0f) volume = 0.0f;
		}
		AudioSystem.setMasterVolume(volume);
		long origCallerIdentityToken = Binder.clearCallingIdentity();
		Settings.System.putFloat(mContentResolver, Settings.System.VOLUME_MASTER, volume);
		Binder.restoreCallingIdentity(origCallerIdentityToken);
		}
		}