我如何在Android中拥有一个mediaPlayer来一个接一个地播放2个或更多mp3文件？

我正在创建一个我希望它一个接一个地播放多个mp3文件的android应用程序.

我的应用程序上有一个mediaPlayer,如何设置播放mp3文件的队列？

解决方法:

实现此目的的方法是创建一个实现OnCompletionListener的类,该类处理onCompletion并接收下一个要播放的文件.
首先像下面这样定义PlayMedia的类：

import android.content.Context;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.os.AsyncTask;
import android.util.Log;

public class PlayMedia extends AsyncTask<Void, Void, Void> {

    private static final String LOG_TAG = PlayMedia.class.getSimpleName();

    Context context;
    private MediaPlayer mediaPlayer;
    int[] soundIDs;
    int idx =1;

    public PlayMedia(MediaPlayer mediaPlayer) {
        this.mediaPlayer = mediaPlayer;
    }
    public PlayMedia(final Context context, final int[] soundIDs) {
        this.context = context;
        this.soundIDs=soundIDs;
        mediaPlayer = MediaPlayer.create(context,soundIDs[0]);
        setNextMediaForMediaPlayer(mediaPlayer);
    }

    public void setNextMediaForMediaPlayer(MediaPlayer player){
        player.setOnCompletionListener(new OnCompletionListener() {         
            public void onCompletion(MediaPlayer mp) {
                if(soundIDs.length>idx){
                    mp.release();
                    mp = MediaPlayer.create(context,soundIDs[idx]);
                    setNextMediaForMediaPlayer(mp);
                    mp.start();
                    idx+=1;
                }               
            }
        });
    }

    @Override
    protected Void doInBackground(Void... params) {
        try {
            mediaPlayer.start();
        } catch (IllegalArgumentException e) {
            Log.e(LOG_TAG, "", e);
        } catch (SecurityException e) {
            Log.e(LOG_TAG, "", e);
        } catch (IllegalStateException e) {
            Log.e(LOG_TAG, "", e);
        }

        return null;
    }
}

然后像这样使用PlayMedia：

int[] soundIDs = {R.raw.firstmp3, R.raw.secondmp3};
PlayMedia playAudio = new PlayMedia(context,soundIDs);
playAudio.execute();

标签：android-mediaplayer,android
来源： https://codeday.me/bug/20191027/1944499.html