android 传递 类对象 序列化 Serializable

public class Song implements Serializable
{
        /**
     * 
     */
    private static final long serialVersionUID = 6419921245498371442L;
        String uri;
        String songname;
        String author;
        boolean isCheck;
        public Song(String uri,String songname, String author)
        {
            this.uri = uri;
            this.songname = songname;
            this.author = author;
        }
        
}

private void go2play()
    {
        ArrayList<Song> newlist = new ArrayList<Song>();
        for (int i = 0; i < list.size(); i++)
        {
            if (list.get(i).isCheck)
            {
                newlist.add(list.get(i));
            }
        }
        Intent intent = new Intent(this, Main.class);
        Bundle b = new Bundle();
        b.putSerializable("list", newlist);
        intent.putExtras(b);
        startActivity(intent);
    }

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