fileaction.java

来自「Java ME手机应用开发大全一书的配套光盘上的源码」· Java 代码 · 共 51 行

import java.util.Enumeration;
import javax.microedition.io.Connector;
import javax.microedition.io.file.FileConnection;
import javax.microedition.io.file.FileSystemRegistry;

public class FileAction
{
    Invoker browser;
    
    public FileAction(Invoker browser)
    {
        this.browser=browser;
    }
    
    public synchronized void getDirContent(String currentDir)
    {
        Enumeration CurrentDirEnum=null ;
        FileConnection currDirFC=null;
        System.out.println("FileThread.run");
        boolean isRoot=false;
        try
        {
            if(currentDir.equals("/"))
            {
                CurrentDirEnum = FileSystemRegistry.listRoots();
                isRoot=true;
            }
            else
            {
                currDirFC = (FileConnection)Connector.open("file://"+currentDir);
                if(currDirFC!=null)
                    CurrentDirEnum = currDirFC.list();
            }
        }
        catch(SecurityException e)
        {
            System.out.println("Security exception");
            CurrentDirEnum=null ;
        }
        catch(Exception ex)
        {
            System.out.println("FileSystemThread.run - Exception:"+ex.toString());
        }
        finally
        {
            currDirFC=null;
            browser.updateDirList(CurrentDirEnum, isRoot);
        }
    }    
}