Question

我正在尝试构建一个可以从网络流式传输mp3内容的应用。当我运行此代码时，我没有得到任何错误，但没有播放音频。有帮助吗？感谢

       private MediaPlayer mediaPlayer;



@Override
public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

initView();
try {

    mediaPlayer.setDataSource("my link.mp3"); // 
    mediaPlayer.prepareAsync();
    //mediaPlayer.prepare(); // 
 if(! mediaPlayer.isPlaying())
 {
  mediaPlayer.start();
 }

    } catch (Exception e) {

    e.printStackTrace();

    }
}




private void initView() {

mediaPlayer = new MediaPlayer();


}

}

Answer 1

 private MediaPlayer mediaPlayer;
@Override
public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

initView();
try {

    mediaPlayer.setDataSource("my link.mp3"); // 
   // mediaPlayer.prepareAsync();
   mediaPlayer.prepare();

//如果您想要异步操作，则此方法会阻止UI，然后使用mediaPlayer.prepareAsync（）;

  mediaPlayer.start();


    } catch (Exception e) {

    e.printStackTrace();

    }
}

Answer 2

试试这个：

  ProgressDialog progressDialog = ProgressDialog
                .show(this, "Loading ", "Please Wait...");
        progressDialog.setCancelable(false);
    MediaPlayer player = new MediaPlayer();
            player.setAudioStreamType(AudioManager.STREAM_MUSIC);
            try {
                player.setDataSource("http://my link.mp3");
                player.setOnErrorListener(this);
                player.setOnPreparedListener(this);
                player.prepareAsync();
            } catch (IllegalArgumentException e) {
                Toast.makeText(YourActivity.this,
                        "Internet Access is not Provided", 0).show();
                e.printStackTrace();
            } catch (IllegalStateException e) {
                Toast.makeText(YourActivity.this,
                        "Internet Access is not Provided", 0).show();
                e.printStackTrace();
            } catch (IOException e) {
                Toast.makeText(YourActivity.this,
                        "Internet Access is not Provided", 0).show();
                e.printStackTrace();
            }


    @Override
    public void onPrepared(MediaPlayer play) {
        if (progressDialog != null && progressDialog.isShowing()) {
            progressDialog.dismiss();
        }
        play.start();
    }

    @Override
    public boolean onError(MediaPlayer arg0, int arg1, int arg2) {
        if (progressDialog != null && progressDialog.isShowing()) {
            progressDialog.dismiss();
        }
        if (player != null) {
            player.release();
            player = null;
        }       
        return false;
    }

从链接流MP3

2 个答案: