在成功授权上，我能够播放硬编码曲目，但它们既不是任何播放器，也不是任何暂停，停止，播放按钮。
我按照this教程，做了那里提到的所有事情。
现在我需要添加spotify播放器，但我无法找到与此相关的任何文档。我认为我需要自己创建播放器布局，因为播放器sdk提供了不同的按钮回调，但没有什么比使用播放器的预定义布局了。
这是我在成功授权后所做的事情。
Spotify.getPlayer(playerConfig, this, new SpotifyPlayer.InitializationObserver() {
@Override
public void onInitialized(SpotifyPlayer spotifyPlayer) {
mPlayer = spotifyPlayer;
mPlayer.addConnectionStateCallback(MainActivity.this);
mPlayer.addNotificationCallback(MainActivity.this);
}
@Override
public void onLoggedIn() {
Log.d("MainActivity", "User logged in");
mPlayer.playUri(null, "spotify:track:2TpxZ7JUBn3uw46aR7qd6V", 0, 0);
}
答案 0 :(得分：3)
如果您按照该教程进行操作，如果您能够播放曲目，那么您可以使用SpotifyPlayer参考。 getPlayer方法可以为您提供。
SpotifyPlayer不是UI组件。拥有该播放器（https://spotify.github.io/android-sdk/player/）后，您将创建自己的UI，并将按钮连接到播放器操作（方法）和事件。
这是一个可能有帮助的例子（不完整或完善！，不全面，但是一个可能有助于入门的示例项目的快速示例）：
public class PlayerActivity extends BaseActivity {
private ImageView buttonPlayPause;
private TextView labelNowPlaying;
private RecyclerView trackListRecyclerView;
private TrackListAdapter trackListAdapter;
private RecyclerView.LayoutManager trackListLayoutManager;
private Player spotifyPlayer;
private ConnectionStateCallback spotifyConnectionStateCallback;
private Player.NotificationCallback spotifyPlayerNotificationCallback;
private Player.OperationCallback spotifyPlayerOperationCallback;
private String spotifyAccessToken;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_player);
buttonPlayPause = (ImageView) findViewById(R.id.button_play_pause);
labelNowPlaying = (TextView) findViewById(R.id.label_now_playing);
buttonPlayPause.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// toggle spot pause/play
if (spotifyPlayer == null) {
Toast.makeText(PlayerActivity.this, "Spotify player not ready", Toast.LENGTH_SHORT).show();
} else {
// SpotifyPlayer provides init and connect methods; direct controls (play uri, pause, seek, skip, resume); and state (metadata and playbackstate)
PlaybackState playbackState = spotifyPlayer.getPlaybackState();
Log.d(Constants.TAG, "playPause click, playbackState:" + playbackState);
Metadata metadata = spotifyPlayer.getMetadata();
if (!playbackState.isPlaying && playbackState.positionMs == 0) {
// nothing has been started yet play track 1
Track track = trackListAdapter.getFirstTrack();
labelNowPlaying.setText(track.getName());
spotifyPlayer.playUri(null, track.getUri(), 0, 0);
return;
}
if (playbackState.isPlaying) {
spotifyPlayer.pause(spotifyPlayerOperationCallback);
return;
}
if (!playbackState.isPlaying && playbackState.positionMs > 0) {
// TODO how to tell if player is paused, idPlaying false and just position != 0? or is there an actual pause state, weird?
spotifyPlayer.resume(spotifyPlayerOperationCallback);
return;
}
// get here it's weird
Log.d(Constants.TAG, "error unexepected playback state:" + playbackState);
Toast.makeText(PlayerActivity.this, "Spotify playback state weird:" + playbackState, Toast.LENGTH_LONG).show();
}
}
});
spotifyPlayerNotificationCallback = new Player.NotificationCallback() {
@Override
public void onPlaybackEvent(PlayerEvent playerEvent) {
Log.d(Constants.TAG, "Spotify player notif callback: playback event: " + playerEvent.name());
handleSpotifyEvent(playerEvent);
}
@Override
public void onPlaybackError(Error error) {
Log.d(Constants.TAG, "Spotify player notif callback: playback error: " + error.name());
handleSpotifyError(error);
}
};
// recycler view
List<Track> playList = application.getPlaylist();
trackListRecyclerView = (RecyclerView) findViewById(R.id.track_list_recycler);
trackListRecyclerView.setHasFixedSize(true);
trackListLayoutManager = new LinearLayoutManager(this);
trackListRecyclerView.setLayoutManager(trackListLayoutManager);
trackListAdapter = new TrackListAdapter(PlayerActivity.this, playList);
trackListRecyclerView.setAdapter(trackListAdapter);
// get track list click events as observable
trackListAdapter.asObservable().subscribe(new Action1<Track>() {
@Override
public void call(Track track) {
// TODO make other adapter list items not clickable until one is processed?
labelNowPlaying.setText(track.getName());
spotifyPlayer.playUri(null, track.getUri(), 0, 0);
}
});
// spotify player callback
spotifyConnectionStateCallback = new ConnectionStateCallback() {
@Override
public void onLoggedIn() {
Log.d(Constants.TAG, "Spotify connection callback: User logged in");
}
@Override
public void onLoggedOut() {
Log.d(Constants.TAG, "Spotify connection callback: user logged out");
}
@Override
public void onLoginFailed(Error e) {
Log.d(Constants.TAG, "Spotify connection callback: login failed: " + e.toString());
}
@Override
public void onTemporaryError() {
Log.d(Constants.TAG, "Spotify connection callback: temp error occurred");
}
@Override
public void onConnectionMessage(String message) {
Log.d(Constants.TAG, "Spotify connection callback: connection message: " + message);
}
};
spotifyPlayerOperationCallback = new Player.OperationCallback() {
@Override
public void onSuccess() {
Log.d(Constants.TAG, "Spotify operation callback: success");
}
@Override
public void onError(Error error) {
Log.d(Constants.TAG, "Spotify operation callback: error " + error.name());
Toast.makeText(PlayerActivity.this, "Spotify op error: " + error.name(), Toast.LENGTH_SHORT).show();
}
};
spotifyAccessToken = application.getSpotifyAccessToken();
initSpotifyPlayer();
}
@Override
protected void onDestroy() {
Spotify.destroyPlayer(this);
super.onDestroy();
}
//
// private
//
//
// SPOT
//
private void initSpotifyPlayer() {
Log.d(Constants.TAG, "initSpotifyPlayer");
if (spotifyAccessToken == null) {
Toast.makeText(this, "Spotify access token not present, cannot continue", Toast.LENGTH_LONG).show();
return;
}
Config playerConfig = new Config(this, spotifyAccessToken, application.getSpotifyClientId());
Spotify.getPlayer(playerConfig, this, new SpotifyPlayer.InitializationObserver() {
@Override
public void onInitialized(SpotifyPlayer player) {
spotifyPlayer = player;
spotifyPlayer.addConnectionStateCallback(spotifyConnectionStateCallback);
spotifyPlayer.addNotificationCallback(spotifyPlayerNotificationCallback);
}
@Override
public void onError(Throwable throwable) {
Log.e(Constants.TAG, "Could not initialize player: " + throwable.getMessage());
}
});
}
private void handleSpotifyEvent(final PlayerEvent playerEvent) {
Log.d(Constants.TAG, "Spotify playerEvent:" + playerEvent.name());
switch (playerEvent) {
case kSpPlaybackEventAudioFlush:
break;
case kSpPlaybackNotifyAudioDeliveryDone:
break;
case kSpPlaybackNotifyBecameActive:
break;
case kSpPlaybackNotifyBecameInactive:
break;
case kSpPlaybackNotifyContextChanged:
break;
case kSpPlaybackNotifyLostPermission:
Toast.makeText(PlayerActivity.this, "Spotify player perms lost (logged in elsewhere?)", Toast.LENGTH_LONG).show();
buttonPlayPause.setImageResource(android.R.drawable.ic_media_play);
startActivity(new Intent(PlayerActivity.this, MainActivity.class));
break;
case kSpPlaybackNotifyMetadataChanged:
break;
case kSpPlaybackNotifyNext:
break;
case kSpPlaybackNotifyPause:
buttonPlayPause.setImageResource(android.R.drawable.ic_media_play);
break;
case kSpPlaybackNotifyPlay:
buttonPlayPause.setImageResource(android.R.drawable.ic_media_pause);
// TODO get current playing track here?
//labelNowPlaying.setText(spotifyPlayer.getMetadata().currentTrack.
break;
case kSpPlaybackNotifyPrev:
break;
case kSpPlaybackNotifyRepeatOff:
break;
case kSpPlaybackNotifyRepeatOn:
break;
case kSpPlaybackNotifyShuffleOff:
break;
case kSpPlaybackNotifyShuffleOn:
break;
case kSpPlaybackNotifyTrackChanged:
break;
case kSpPlaybackNotifyTrackDelivered:
break;
default:
break;
}
}
private void handleSpotifyError(final Error error) {
Log.e(Constants.TAG, "Spotify Error:" + error.name());
switch (error) {
// corrupt track, add is playing, need perms, travel restriction, etc
default:
break;
}
}
}