如何在android中播放音频文件

我的android手机中有一个mp3文件，让它在我的sdcard中的某个地方是xyz.mp3。如何通过我的应用程序播放它？

4个解决方案

98 votes

只需使用MediaPlayer即可播放音频文件。 看看这个播放音频的好例子：

public void audioPlayer(String path, String fileName){

//set up MediaPlayer

MediaPlayer mp = new MediaPlayer();

try {

mp.setDataSource(path + File.separator + fileName);

mp.prepare();

mp.start();

} catch (Exception e) {

e.printStackTrace();

}

}

Lalit Poptani answered 2020-02-21T19:32:03Z

8 votes

@Niranjan，如果您正在使用res / raw文件夹中的原始文件，即读取存储在项目中的文件，则可以使用：

mediaplayer.setDataSource(context, Uri.parse("android.resource://urpackagename/res/raw/urmp3name");

如果必须使用SD卡：

MediaPlayer mediaPlayer = new MediaPlayer();

File path = android.os.Environment.getExternalStorageDirectory();

mediaPlayer.setDataSource(path + "urmp3filename");

请参阅此相关问题：Android上原始文件夹和sdcard之间的MediaPlayer问题

Suv answered 2020-02-21T19:32:32Z

2 votes

public class MainActivity extends Activity implements OnClickListener {

Button play;

MediaPlayer mp;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

setVolumeControlStream(AudioManager.STREAM_MUSIC);

play=(Button)findViewById(R.id.button1);

play.setOnClickListener(this);

}

@Override

public void onClick(View arg0)

{

mp=MediaPlayer.create(getApplicationContext(),R.raw.song);// the song is a filename which i have pasted inside a folder **raw** created under the **res** folder.//

mp.start();

}

@Override

protected void onDestroy() {

mp.release();

super.onDestroy();

}

}

Naren answered 2020-02-21T19:32:47Z

1 votes

如果音频在本地原始资源中：

MediaPlayer mediaPlayer = MediaPlayer.create(context, R.raw.sound_file_1);

mediaPlayer.start(); // no need to call prepare(); create() does that for you

要从系统中本地可用的URI播放：

Uri myUri = ....; // initialize Uri here

MediaPlayer mediaPlayer = new MediaPlayer();

mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);

mediaPlayer.setDataSource(getApplicationContext(), myUri);

mediaPlayer.prepare();

mediaPlayer.start();

A-Sharabiani answered 2020-02-21T19:33:12Z