无法在对话框中采用了android的MediaPlayer播放声音？

问题描述

我想在一个对话框中播放声音。但不知何故，它不工作。我不知道是否是因为其在对话框左右。

I'm trying to play sound in a dialog. But somehow, it doesnt work. I'm not sure whether it's because its in a dialog or so.

File file = new File(Environment.getExternalStorageDirectory(),"/record");
    final String soundUri = file.getAbsolutePath() + "/" +childName; 
    RelativeLayout layout = new RelativeLayout(MLT_File.this);

    final MediaPlayer mp = MediaPlayer.create(MLT_File.this, Uri.parse(soundUri));

    RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT);
    params.setMargins(0, 20, 0, 0);
    LinearLayout layout2 = new LinearLayout(MLT_File.this);
    layout2.setLayoutParams(params);
    layout2.setGravity(Gravity.CENTER);
    final ImageButton btn = new ImageButton(MLT_File.this);
    btn.setImageDrawable(this.getResources().getDrawable(android.R.drawable.ic_media_play));
    layout2.addView(btn);

    layout.addView(layout2);

    btn.setOnClickListener(new OnClickListener()
    {
        @Override
        public void onClick(View v) 
        {
            // TODO Auto-generated method stub
            if(mp.isPlaying())
            {
                mp.pause();
                btn.setImageDrawable(MLT_File.this.getResources().getDrawable(android.R.drawable.ic_media_play));
            }//video is playing

            else
            {
                mp.start();
                btn.setImageDrawable(MLT_File.this.getResources().getDrawable(android.R.drawable.ic_media_pause));
            }
        }   
    });//onClickListener

    AlertDialog.Builder builder = new AlertDialog.Builder(MLT_File.this);
    builder.setView(layout);
    builder.setCancelable(false);
    builder.setPositiveButton("Delete", new DialogInterface.OnClickListener()
    {
        @Override
        public void onClick(DialogInterface dialog, int which) 
        {
            // TODO Auto-generated method stub
            mp.stop();
            itemClick (1,soundUri);
        }
    });//delete

    builder.setNeutralButton("Share", new DialogInterface.OnClickListener()
    {
        @Override
        public void onClick(DialogInterface dialog, int which) 
        {
            // TODO Auto-generated method stub
            mp.stop();
            itemClick (3,soundUri);
        }
    });//share

    builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener()
    {
        @Override
        public void onClick(DialogInterface dialog, int which) 
        {
            // TODO Auto-generated method stub
            mp.stop();
            dialog.dismiss();
        }           
    });//cancel
    builder.create().show();

有只有1个错误：

01-30 16:27:29.251: E/MediaPlayer-JNI(32416): setDataSource: outside path in JNI is �x@

我用媒体播放器从的Andr​​oid的想法：播放音频剪辑的onClick

推荐答案

只要使用，

private MediaPlayer mp = new MediaPlayer();
mp.reset();
mp.setDataSource(soundUri);
mp.prepare();
mp.start();

和让我知道发生什么事。

And let me know what happen..

另外，也要看看这个例子 MusicDroid - 音频播放部分

Also look at this example MusicDroid - Audio Player Part I

这篇关于无法在对话框中采用了android的MediaPlayer播放声音？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！