Hi, I am currently using the version 1.1.2 of the library and once again that’s an amazing job you are doing there. Here are some strange things I am experimenting with this version :

Configuration

package.json

    "react": "16.3.1",
    "react-native": "0.55.4",
    "react-native-track-player": "^1.1.2",
    "react-native-swift": "^1.2.2",

react-native info

Environment:
  OS: macOS High Sierra 10.13.6
  Node: 8.11.2
  Yarn: 1.9.4
  npm: 5.6.0
  Watchman: 4.9.0
  Xcode: Xcode 10.1 Build version 10B61
  Android Studio: 3.2 AI-181.5540.7.32.5056338

Packages: (wanted => installed)
  react: 16.3.1 => 16.3.1
  react-native: 0.55.4 => 0.55.4

iOS

• Jump forward / Jump backward / Stop

I am initialising my player like follow :

  static async initPlayer() {
    await TrackPlayer.setupPlayer().then(() => console.log('created'));
    TrackPlayer.updateOptions({
      stopWithApp: true,
      jumpInterval: 60,
      capabilities: [
        TrackPlayer.CAPABILITY_PLAY,
        TrackPlayer.CAPABILITY_PAUSE,
        TrackPlayer.CAPABILITY_STOP,
        TrackPlayer.CAPABILITY_SEEK_TO,
        TrackPlayer.CAPABILITY_JUMP_FORWARD,
        TrackPlayer.CAPABILITY_JUMP_BACKWARD,
      ],
    });
  }

But for this configuration I happened to have all of this results (I still think the output changes considering when I open the media center, if I open it very fast before/during the track adding it usually bugs and give me a missing side or both side missing). Moreover now you can also see that the stop button never appears (but it does on Android).

Normal output (with the old version cause I never got this with the new version):

Left missing :

Both missing : (most of the time I get this one)

• Infinite Loop event

That’s maybe not a bug but still wanna talk about it just in case :

Creating the service.js this way, with an empty queue of file to play you will get the ‘playback-queue-ended’ event in an infinite loop :

import TrackPlayer from 'react-native-track-player';

module.exports = async function service() {
  // ... 

  TrackPlayer.addEventListener('remote-stop', () => {
    TrackPlayer.destroy();
  });

  TrackPlayer.addEventListener('playback-queue-ended', (infos) => {
    TrackPlayer.reset();
  });
};

Android

• Seek bar not available in notification :

For this I don’t know if it can be considered a bug or if it was just not wanted, but there are no seek bar available in the notification (in opposite of iOS).

• Restart playing automatically on end :

When the player finish to read the current track for some reason it auto restart to play the same track. (on iOS with the same code the track just doesn’t restart which is normal)

• Jump forward / Jump backward is not linked to JumpInterval option :

Supposedly JumpInterval is "The interval in seconds for the jump forward/backward buttons " But in the documentation it is also written (https://github.com/react-native-kit/react-native-track-player/wiki/Documentation#remote-jump-forward) that the event will give “usually” the time given in the option. In my case, on Android the time Interval given to the event is always 15 instead of the 60 defined in the options (on iOS the JumpInterval works nicely with the 60).

Thanks a lot for this amazing library and I hope it helps 👍 Best regards