Android Media3 ExoPlayer如何移除通知栏控制按钮？

如何移除通知栏中的播放/暂停按钮、上一曲按钮和下一曲按钮？直接移除整个通知窗口也可以。我正在结合MediaSession使用ExoPlayer。

我的代码 #

MyExoPlayerService 实现 #

import androidx.media3.common.MediaItem;
import androidx.media3.common.Player;
import androidx.media3.exoplayer.ExoPlayer;
import androidx.media3.session.MediaSession;
import androidx.media3.session.MediaSessionService;

public class MyExoPlayerService extends MediaSessionService {

private ExoPlayer myExoPlayer;
private MediaSession mediaSession;

@Override
public void onCreate() {
    Log.d(Const.TAG, "Create media session service");
    super.onCreate();
    myExoPlayer = new ExoPlayer.Builder(this)
            .build();
    
    if(mediaSession.getPlayer()==null) {
        Log.d(Const.TAG, "Player is null");
    }
}

@Override
public void onDestroy() {
    Log.d(Const.TAG, "Destroy media session service");
    release();
    super.onDestroy();
}

public void setDisc(Uri uri) {
    // Build the media item.
    MediaItem mediaItem = MediaItem.fromUri(uri);

    // Set the media item to be played.
    mediaSession.getPlayer().setMediaItem(mediaItem);

    //Set repeat mode to loop
    mediaSession.getPlayer().setRepeatMode(Player.REPEAT_MODE_ALL);

    // Prepare the player.
    mediaSession.getPlayer().prepare();

    // Start the playback.
    mediaSession.getPlayer().setPlayWhenReady(true);
}

public void release() {
    Log.d(Const.TAG, "Release media session service");
    if(myExoPlayer!=null){
        myExoPlayer.release();
    }
    if(mediaSession!=null) {
        if(mediaSession.getPlayer()!=null) {
            mediaSession.getPlayer().release();
        }
        mediaSession.release();
        mediaSession = null;
    }
}

public void pause() {
    if(myExoPlayer!=null){
        mediaSession.getPlayer().setPlayWhenReady(false);
    }
}

public void start() {
    if(myExoPlayer!=null){
        mediaSession.getPlayer().setPlayWhenReady(true);
    }
}

public boolean isPlaying() {
    return mediaSession.getPlayer().getPlayWhenReady();
}

@Override
public MediaSession onGetSession(MediaSession.ControllerInfo controllerInfo) {
    // This example always accepts the connection request
    return mediaSession;
}

创建ExoPlayer服务的代码 #

private void prepareExoPlayerService() {

    // Set flag
    mediaControllerIsPrepared = new AtomicBoolean();
    mediaControllerIsPrepared.set(false);

    // Build session token
    SessionToken sessionToken =
            new SessionToken(this, new ComponentName(this, MyExoPlayerService.class));

    // Build media controller
    mediaControllerFuture =
            new MediaController.Builder(this, sessionToken).buildAsync();
    mediaControllerFuture.addListener(() -> {
        // Call controllerFuture.get() to retrieve the MediaController.
        // MediaController implements the Player interface, so it can be
        // attached to the PlayerView UI component.
        //playerView.setPlayer(controllerFuture.get());
        mediaControllerIsPrepared.set(true);
    }, MoreExecutors.directExecutor());

}

注意：你的原代码onCreate方法中mediaSession未初始化，直接调用mediaSession.getPlayer()会触发空指针异常，以下方案会先修复这个问题。

方法一：彻底移除通知栏媒体窗口 #

通过配置MediaSession的通知提供者返回null，完全禁用媒体通知：

@Override
public void onCreate() {
    Log.d(Const.TAG, "Create media session service");
    super.onCreate();
    myExoPlayer = new ExoPlayer.Builder(this)
            .build();
    
    // 初始化MediaSession并禁用通知
    MediaSession.Builder mediaSessionBuilder = new MediaSession.Builder(this, myExoPlayer);
    // 设置通知提供者返回null，不生成媒体通知
    mediaSessionBuilder.setNotificationProvider((session, controller, mediaMetadata, playWhenReady, playbackState) -> null);
    mediaSession = mediaSessionBuilder.build();
}

配置后通知栏不会出现任何媒体控制窗口。

方法二：仅移除控制按钮（保留通知） #

如果需要保留通知但隐藏播放/暂停、上下曲按钮，可通过限制MediaSession的可用命令实现：

@Override
public void onCreate() {
    Log.d(Const.TAG, "Create media session service");
    super.onCreate();
    myExoPlayer = new ExoPlayer.Builder(this)
            .build();
    
    MediaSession.Builder mediaSessionBuilder = new MediaSession.Builder(this, myExoPlayer);
    
    // 构建自定义命令集合，移除不需要的控制命令
    SessionCommands.Builder commandsBuilder = new SessionCommands.Builder();
    // 移除播放/暂停、上一曲、下一曲命令
    commandsBuilder.removeCommand(SessionCommand.COMMAND_CODE_PLAY_PAUSE);
    commandsBuilder.removeCommand(SessionCommand.COMMAND_CODE_SKIP_TO_PREVIOUS);
    commandsBuilder.removeCommand(SessionCommand.COMMAND_CODE_SKIP_TO_NEXT);
    
    mediaSessionBuilder.setAvailableCommands(commandsBuilder.build());
    mediaSession = mediaSessionBuilder.build();
}

配置后通知栏会保留，但播放控制按钮会被隐藏，因为MediaSession不再对外暴露这些控制动作。

内容的提问来源于stack exchange，提问作者skymedium