am e09eb7dc: Merge "frameworks/base: Performance tweaks for SeekBarVolumizer." into lmp-preview-dev (6625a27d) · Commits · e / os / android_frameworks_base

core/java/android/preference/SeekBarVolumizer.java

+32 −25

Original line number	Diff line number	Diff line
		@@ -37,20 +37,22 @@ import android.widget.SeekBar.OnSeekBarChangeListener;
		* @hide
		*/
		public class SeekBarVolumizer implements OnSeekBarChangeListener, Handler.Callback {
		private static final String TAG = "SeekBarVolumizer";

		public interface Callback {
		void onSampleStarting(SeekBarVolumizer sbv);
		}

		private Context mContext;
		private Handler mHandler;
		private final Context mContext;
		private final Handler mHandler;
		private final Callback mCallback;
		private final Uri mDefaultUri;
		private final AudioManager mAudioManager;
		private final int mStreamType;
		private final int mMaxStreamVolume;

		private AudioManager mAudioManager;
		private int mStreamType;
		private int mOriginalStreamVolume;
		private Ringtone mRingtone;

		private int mLastProgress = -1;
		private SeekBar mSeekBar;
		private int mVolumeBeforeMute = -1;
		@@ -58,9 +60,10 @@ public class SeekBarVolumizer implements OnSeekBarChangeListener, Handler.Callba
		private static final int MSG_SET_STREAM_VOLUME = 0;
		private static final int MSG_START_SAMPLE = 1;
		private static final int MSG_STOP_SAMPLE = 2;
		private static final int MSG_INIT_SAMPLE = 3;
		private static final int CHECK_RINGTONE_PLAYBACK_DELAY_MS = 1000;

		private ContentObserver mVolumeObserver = new ContentObserver(mHandler) {
		private ContentObserver mVolumeObserver = new ContentObserver(new Handler()) {
		@Override
		public void onChange(boolean selfChange) {
		super.onChange(selfChange);
		@@ -71,27 +74,17 @@ public class SeekBarVolumizer implements OnSeekBarChangeListener, Handler.Callba
		}
		};

		public SeekBarVolumizer(Context context, SeekBar seekBar, int streamType, Uri defaultUri,
		public SeekBarVolumizer(Context context, int streamType, Uri defaultUri,
		Callback callback) {
		mContext = context;
		mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
		mStreamType = streamType;
		mSeekBar = seekBar;

		HandlerThread thread = new HandlerThread(VolumePreference.TAG + ".CallbackHandler");
		mMaxStreamVolume = mAudioManager.getStreamMaxVolume(mStreamType);
		HandlerThread thread = new HandlerThread(TAG + ".CallbackHandler");
		thread.start();
		mHandler = new Handler(thread.getLooper(), this);
		mCallback = callback;

		initSeekBar(seekBar, defaultUri);
		}

		private void initSeekBar(SeekBar seekBar, Uri defaultUri) {
		seekBar.setMax(mAudioManager.getStreamMaxVolume(mStreamType));
		mOriginalStreamVolume = mAudioManager.getStreamVolume(mStreamType);
		seekBar.setProgress(mOriginalStreamVolume);
		seekBar.setOnSeekBarChangeListener(this);

		mContext.getContentResolver().registerContentObserver(
		System.getUriFor(System.VOLUME_SETTINGS[mStreamType]),
		false, mVolumeObserver);
		@@ -105,12 +98,16 @@ public class SeekBarVolumizer implements OnSeekBarChangeListener, Handler.Callba
		defaultUri = Settings.System.DEFAULT_ALARM_ALERT_URI;
		}
		}

		mRingtone = RingtoneManager.getRingtone(mContext, defaultUri);

		if (mRingtone != null) {
		mRingtone.setStreamType(mStreamType);
		mDefaultUri = defaultUri;
		mHandler.sendEmptyMessage(MSG_INIT_SAMPLE);
		}

		public void setSeekBar(SeekBar seekBar) {
		mSeekBar = seekBar;
		mSeekBar.setOnSeekBarChangeListener(null);
		mSeekBar.setMax(mMaxStreamVolume);
		mSeekBar.setProgress(mLastProgress > -1 ? mLastProgress : mOriginalStreamVolume);
		mSeekBar.setOnSeekBarChangeListener(this);
		}

		@Override
		@@ -125,12 +122,22 @@ public class SeekBarVolumizer implements OnSeekBarChangeListener, Handler.Callba
		case MSG_STOP_SAMPLE:
		onStopSample();
		break;
		case MSG_INIT_SAMPLE:
		onInitSample();
		break;
		default:
		Log.e(VolumePreference.TAG, "invalid SeekBarVolumizer message: "+msg.what);
		Log.e(TAG, "invalid SeekBarVolumizer message: "+msg.what);
		}
		return true;
		}

		private void onInitSample() {
		mRingtone = RingtoneManager.getRingtone(mContext, mDefaultUri);
		if (mRingtone != null) {
		mRingtone.setStreamType(mStreamType);
		}
		}

		private void postStartSample() {
		mHandler.removeMessages(MSG_START_SAMPLE);
		mHandler.sendMessageDelayed(mHandler.obtainMessage(MSG_START_SAMPLE),

core/java/android/preference/VolumePreference.java

+2 −1

Original line number	Diff line number	Diff line
		@@ -66,7 +66,8 @@ public class VolumePreference extends SeekBarDialogPreference implements
		super.onBindDialogView(view);

		final SeekBar seekBar = (SeekBar) view.findViewById(com.android.internal.R.id.seekbar);
		mSeekBarVolumizer = new SeekBarVolumizer(getContext(), seekBar, mStreamType, null, this);
		mSeekBarVolumizer = new SeekBarVolumizer(getContext(), mStreamType, null, this);
		mSeekBarVolumizer.setSeekBar(seekBar);

		getPreferenceManager().registerOnActivityStopListener(this);