求教，求大神帮忙注释一下

/**

• 文件库对话框

• /
  public class FileLibDialog extends Dialog implements DialogInterface{
  /*

  • 文件库数据结构为
  • parentList 放 文件库名.
  • childList 放对应文件库里的文件.
  • 库名在parentList的位置与其文件在childList的位置一样

  • */
    private ArrayList parentList;
    private ArrayList> childList;
    private FileManager fileManager;
    private Button addBtn, cancelBtn;
    private String path;
    private static final String close = "关闭";
    RelativeLayout layout;
    ExpandableListView lists;
    ExpandListAdapter adapter;
    public static final char FILE_LIB_ADD = 0;
    public static final char FILE_LIB_OPEN = 1;
    public char doWhat = 0;
    public void setPath(String s) { path = s;}
    public FileLibDialog(final FileManager fm, ArrayList parent,
    ArrayList> child)
    {
    super((Context) fm);
    parentList = parent;
    childList = child;
    this.fileManager = fm;
    LayoutInflater inflater = fm.getLayoutInflater();
    layout = (RelativeLayout) inflater.inflate(R.layout.filelibs, null);
    lists = (ExpandableListView) layout.findViewById(R.id.expandableListView);
    adapter = new ExpandListAdapter();
    lists.setAdapter(adapter);
    setTitle("文件库");
    setContentView(layout);

    /** 添加文件到库*/
    lists.setOnGroupClickListener(new OnGroupClickListener()
    {
    @Override
    public boolean onGroupClick(ExpandableListView parent, View v,
    int groupPosition, long id)
    {
    if (doWhat == FILE_LIB_ADD)
    {
    ArrayList child = childList.get(groupPosition);
    if (!fm.isMultFile())
    {
    if (child.contains(path))
    {
    Toast.makeText(fm, path + "已存在", Toast.LENGTH_SHORT).show();
    return false;
    }
    child.add(path);
    } else {
    ArrayList fis = fileManager.currentFileInfo();
    ArrayList fTmp = fileManager.selectedItem();
    int size = fTmp.size();
    String tmp;
    for (int i = 0; i < size; i++)
    {
    tmp = fis.get(fTmp.get(i)).path();
    if (child.contains(tmp))
    {
    continue;
    }
    child.add(tmp);
    }
    }
    FileLibDialog.this.dismiss();
    return true;
    }
    return false;
    }
    });

那个注释不是都写好了么，就是给容器里面放东西啊