public class AssetManagerActivity extends Activity {
    MediaPlayer mediaPlayer1 = null;
    MediaPlayer mediaPlayer2 = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.assetmanager);
        //直接根据声音文件的ID来创建MediaPlayer
        mediaPlayer1 = MediaPlayer.create(this,R.raw.bomb);
        //获取该应用的AssetManager
        AssetManager assetManager = getAssets();

        try {
            //获取指定文件对应的AssetFileDescriptor
            AssetFileDescriptor assetFileDescriptor = assetManager.openFd("shot.wma");
            mediaPlayer2 = new MediaPlayer();
            //使用MediaPlayer加载指定的声音文件
            mediaPlayer2.setDataSource(assetFileDescriptor.getFileDescriptor());
            mediaPlayer2.prepare();
        } catch (IOException e) {
            e.printStackTrace();
        }
        Button button1 = (Button) findViewById(R.id.one);
        button1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                mediaPlayer1.start();
            }
        });
        Button button2 = (Button) findViewById(R.id.eight);
        button2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                mediaPlayer2.start();
            }
        });
    }
}