android MediaPlayer m3u8 播放

项目中用到在播放服务上的m3u8的视频，android自带的MediaPlayer就支持，因此写个demo记录下
布局文件activity_main.xml

Activity

import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {
    private String url = "http://121.132.117.216/hls/a.m3u8";  //换成你自己视频地址
    private SurfaceHolder surfaceHolder;
    private SurfaceView surfaceView;
    private MediaPlayer mediaPlayer;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getSupportActionBar().hide();
        setContentView(R.layout.activity_my_media_player);

        surfaceView = (SurfaceView)findViewById(R.id.surfaceView);
        mediaPlayer = new MediaPlayer();
        try {
            mediaPlayer.setDataSource(url);
            surfaceHolder =surfaceView.getHolder();
            surfaceHolder.addCallback(new SurfaceHolder.Callback() {
                @Override
                public void surfaceCreated(@NonNull SurfaceHolder surfaceHolder) {
                    mediaPlayer.setDisplay(surfaceHolder);
                }
                @Override
                public void surfaceChanged(@NonNull SurfaceHolder surfaceHolder, int i, int i1, int i2) {
                }
                @Override
                public void surfaceDestroyed(@NonNull SurfaceHolder surfaceHolder) {
                }
            });
            mediaPlayer.prepare();
            mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
                @Override
                public void onPrepared(MediaPlayer mp) {
                    mediaPlayer.start();
                    mediaPlayer.setLooping(true);
                }
            });
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

不过在模拟器上播放时只有声音没有画面，在真机上有声音和画面