Merge "Disable the Now Playing List for players with no active item"

package com.android.bluetooth.avrcp;

import android.annotation.NonNull;

import android.content.BroadcastReceiver;

import android.content.ComponentName;

import android.content.Context;

        return ret;

    }

    @NonNull

    String getCurrentMediaId() {

        final MediaPlayerWrapper player = getActivePlayer();

        if (player == null) return "";

        final PlaybackState state = player.getPlaybackState();

        if (state == null || state.getActiveQueueItemId() == MediaSession.QueueItem.UNKNOWN_ID) {

            d("getCurrentMediaId: No active queue item Id: " + state);

        final List<Metadata> queue = player.getCurrentQueue();

        // Disable the now playing list if the player doesn't have a queue or provide an active

        // queue ID that can be used to determine the active song in the queue.

        if (state == null

                || state.getActiveQueueItemId() == MediaSession.QueueItem.UNKNOWN_ID

                || queue.size() == 0) {

            d("getCurrentMediaId: No active queue item Id sending empty mediaId: PlaybackState="

                     + state);

            return "";

        }

        return Util.NOW_PLAYING_PREFIX + state.getActiveQueueItemId();

    }

    @NonNull

    Metadata getCurrentSongInfo() {

        final MediaPlayerWrapper player = getActivePlayer();

        if (player == null) return Util.empty_data();

        return player.getPlaybackState();

    }

    @NonNull

    List<Metadata> getNowPlayingList() {

        final MediaPlayerWrapper player = getActivePlayer();

        if (player == null) {

        // Only send the current song for the now playing if there is no active song. See

        // |getCurrentMediaId()| for reasons why there might be no active song.

        if (getCurrentMediaId().equals("")) {

            List<Metadata> ret = new ArrayList<Metadata>();

            ret.add(Util.empty_data());

            Metadata data = getCurrentSongInfo();

            data.mediaId = "";

            ret.add(data);

            return ret;

        }