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Control the playback of the Spotify application from another Android application?

Can I control the playback of the Spotify application from another Android application? I'm just looking for the skip tracking function (forward and backward).

I know the Spotify Android SDK, but it seems to let you skip tracks played by the SDK:

com.spotify.sdk.android.playback.NativeSpotifyException: Failed SpPlaybackSkipToPrev with  error code 14 (The operation is not supported if the device is not the active playback device)

To clarify how both the actual Spotify app and my own app work on the same device

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3 answers

The quick answer is No, this is not possible.

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Here's how to do it:

This will try to play / pause Spotify. If it does not work, it will start it and start playback.

    public void nextSong() {

    int keyCode = KeyEvent.KEYCODE_MEDIA_NEXT;

    if (!isSpotifyRunning()) {
        startMusicPlayer();
    }

    Intent intent = new Intent(Intent.ACTION_MEDIA_BUTTON);
    intent.setPackage("com.spotify.music");
    synchronized (this) {
        intent.putExtra(Intent.EXTRA_KEY_EVENT, new KeyEvent(KeyEvent.ACTION_DOWN, keyCode));
        getContext().sendOrderedBroadcast(intent, null);

        intent.putExtra(Intent.EXTRA_KEY_EVENT, new KeyEvent(KeyEvent.ACTION_UP, keyCode));
        getContext().sendOrderedBroadcast(intent, null);
    }
}

public void playPauseMusic() {
    int keyCode = KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE;

    if (!mAudioManager.isMusicActive() && !isSpotifyRunning()) {
        startMusicPlayer();
    }

    Intent i = new Intent(Intent.ACTION_MEDIA_BUTTON);
    i.setPackage("com.spotify.music");
    synchronized (this) {
        i.putExtra(Intent.EXTRA_KEY_EVENT, new KeyEvent(KeyEvent.ACTION_DOWN, keyCode));
        getContext().sendOrderedBroadcast(i, null);

        i.putExtra(Intent.EXTRA_KEY_EVENT, new KeyEvent(KeyEvent.ACTION_UP, keyCode));
        getContext().sendOrderedBroadcast(i, null);
    }
}

private void startMusicPlayer() {
    Intent startPlayer = new Intent(Intent.ACTION_MAIN);
    startPlayer.setPackage("com.spotify.music");
    startPlayer.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    getContext().startActivity(startPlayer);

    if (mMusicPlayerStartTimer != null) {
        mMusicPlayerStartTimer.cancel();
    }

    mMusicPlayerStartTimer = new Timer("MusicPlayerStartTimer", true);
    mMusicPlayerStartTimer.schedule(new MusicPlayerStartTimerTask(), DateUtils.SECOND_IN_MILLIS, DateUtils.SECOND_IN_MILLIS);
}

private boolean isSpotifyRunning() {
    Process ps = null;
    try {
        String[] cmd = {
                "sh",
                "-c",
                "ps | grep com.spotify.music"
        };

        ps = Runtime.getRuntime().exec(cmd);
        ps.waitFor();

        return ps.exitValue() == 0;
    } catch (IOException e) {
        Log.e(DEBUG_TAG, "Could not execute ps", e);
    } catch (InterruptedException e) {
        Log.e(DEBUG_TAG, "Could not execute ps", e);
    } finally {
        if (ps != null) {
            ps.destroy();
        }
    }

    return false;
}

private class MusicPlayerStartTimerTask extends TimerTask {
    @Override
    public void run() {
        if (isSpotifyRunning()) {
            playPauseMusic(null);
            cancel();
        }
    }
}

EDIT:

+4

, RemoteController, Lollipop, MediaController L , MediaControllerCompat.

dispatchMediaButtonEvent() KEYCODE_MEDIA_NEXT.

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