使用自定义阵列适配器

我正在研究一个项目，并且试图利用自定义阵列适配器来获取设备上文件和目录的文件列表。

以下是我用来获取文件清单的代码：

public ArrayList<FileDirectoryDetails> getFileDirectoryListing()
    {
        ArrayList<FileDirectoryDetails> fileAndDirectories = new ArrayList<FileDirectoryDetails>();

        final String state = Environment.getExternalStorageState();
        if (Environment.MEDIA_MOUNTED.equals(state))
        {
            File[] files = Environment.getExternalStorageDirectory().listFiles();
            for (int i = 0; i < files.length; i++)
            {
                String path = files[i].getName();
                FileOrDirectory fileOrDirectory;
                //FileDirectoryDetails fileDirectoryDetails = new FileDirectoryDetails();
                //fileDirectoryDetails.path = files[i].getName();
                if (files[i].isDirectory())
                {
                    fileOrDirectory = FileOrDirectory.Directory;
                    //fileDirectoryDetails.fileOrDirectory = FileOrDirectory.Directory;
                }
                else
                {
                    fileOrDirectory = FileOrDirectory.File;
                    //fileDirectoryDetails.fileOrDirectory = FileOrDirectory.File;
                }
                FileDirectoryDetails fileDirectoryDetails = new FileDirectoryDetails(path, fileOrDirectory);
                fileAndDirectories.add(fileDirectoryDetails);
            }
        }

        return fileAndDirectories;
    }

下面是设置列表适配器的代码

公共无效onCreate（捆绑保存的InstanceState）{super.onCreate（savedInstanceState）; listView = getListView（）;

ArrayList<FileDirectoryDetails> filesAndDirectories = getFileDirectoryListing();
fileDirectoryDetailsArrayAdapter = new 
        FileListingArrayAdapter<FileDirectoryDetails>(this, android.R.layout.simple_list_item_1, filesAndDirectories); 

setListAdapter(fileDirectoryDetailsArrayAdapter);

}

下面是FileListingArrayAdapter的代码：

public class FileListingArrayAdapter<FileDirectoryDetails> extends ArrayAdapter<FileDirectoryDetails> 
{
    Context context;
    ArrayList<FileDirectoryDetails> fileDirectoryDetails;
    TextView textView = null;

    public FileListingArrayAdapter(Context context, int resource,
            int textViewResourceId, ArrayList<FileDirectoryDetails> fileListings) {

        super(context, resource, textViewResourceId, fileListings);
        this.context = context;
        this.fileDirectoryDetails = fileListings;
    }

    public FileListingArrayAdapter(Context context, int resource, ArrayList<FileDirectoryDetails> fileListings)
    {
        super(context, resource, fileListings);
        this.context = context;
        this.fileDirectoryDetails = fileListings;
    }

    @Override
    public View getView(int pos, View convertView, ViewGroup parent)
    {
        View view = null;
        LayoutInflater vi = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        view = vi.inflate(R.layout.file_explorer, null);
        TextView textView = (TextView)view.findViewById(R.id.listTextView);
        FileDirectoryDetails fileDetails = fileDirectoryDetails.get(pos);
        //FileDirectoryDetails fileDirectoryDetails = new FileDirectoryDetails();
        fileDetails.path;
        return view;
    }

下面是FileDirectoryDe​​tails的类定义：

public class FileDirectoryDetails
{
    public String path;
    public FileOrDirectory fileOrDirectory;

    public FileDirectoryDetails(String path, FileOrDirectory fileOrDirectory)
    {
        this.path = path;
        this.fileOrDirectory = fileOrDirectory;
    }
}

在自定义阵列适配器中，我尝试以下操作：

FileDirectoryDetails fileDetails = fileDirectoryDetails.get(pos);

然后尝试访问FileDirectoryDe​​tails类中的变量以提取路径名和枚举，以说明它是文件还是目录。

但是，FileDirectoryDe​​tails中的变量不会在Eclipse的智能感知中显示。

我不明白为什么这两个变量不可访问。

感谢您的任何帮助，您可以提供。