播放音频文件的Android问题

Question

我已经从服务器下载了音频文件并使用

/data/data/packagename/sounds/filename.mp3

然后如果我使用

.MediaPlayer mp= new MediaPlayer();
            try {
                mp.setDataSource(PATH+"/"+fileName);
            } catch (IllegalArgumentException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IllegalStateException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

            mp.start();

但是显示错误

MediaPlayer:start called in state 2
MediaPlayer:Error(-38,0)
MediaPlayer:Error(-38,0)

它有什么问题我搜索了很多关于这个但没有解决方案请提出任何解决方案

Answer 1

试试这个代码，

public void audioPlayer(String path, String fileName){
    //set up MediaPlayer    
    MediaPlayer mp = new MediaPlayer();

    try {
        mp.setDataSource(path+"/"+filename.mp3);
    } catch (IllegalArgumentException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IllegalStateException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    try {
        mp.prepare();
    } catch (IllegalStateException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    mp.start();
}