今天模擬檔案copy的進度，狀態的顯示通常是把label bind到Worker裡的property，這樣即可同步顯示狀態，包括以讀取多少byte、目前完成百分比等，還挺有趣的，看看明天還能摸出什麼功能，希望鐵人賽結束的時候可以做出工作上用得的UI。
Main部分沒有變，主要變化的是:

Data

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package myfxthread;


import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;
import java.nio.file.attribute.BasicFileAttributes;

import javafx.concurrent.Task;
import javafx.concurrent.Worker;

/**
 *
 * @author joombuopre
 */
public class Data {
    public Worker<String> worker;
    Path seo=Paths.get("E:\\jdk-7u7-windows-i586.exe");
    Path des=Paths.get("D:\\jdk-7u7-windows-i586.exe");
    
public Data() throws IOException{
    final BasicFileAttributes att= Files.readAttributes(seo, BasicFileAttributes.class);    
    final InputStream in = Files.newInputStream(seo, StandardOpenOption.READ);
   
    worker = new Task<String>(){

        @Override
        protected String call() throws Exception {
            final long total=att.size();
            byte[] buffer = new byte[10000];
            updateProgress(0, total);
            int bytereaded=0;
            long i=0;
             while((bytereaded =in.read(buffer)) != -1){
	i=i+bytereaded;	
	try {
                            Thread.sleep(5);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    updateProgress(i, total);
             
             } 
            return null;
            
         }
    };
    }      
}

Elements(layout部分)

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package myfxthread;

import javafx.beans.binding.Bindings;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.SceneBuilder;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.ProgressBar;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.BorderPaneBuilder;
import javafx.scene.layout.HBox;
import javafx.scene.layout.HBoxBuilder;
import javafx.scene.layout.VBox;
import javafx.scene.layout.VBoxBuilder;


/**
 *
 * @author joombuopre
 */
public class Elements {
    public Button sb=new Button("Start");
    public Button cb=new Button("Cancel");
    public Scene scene;
   public ProgressBar pb=new ProgressBar();
   public Label l1=new Label("File Copy");
   public Label ws=new Label();
   public Label pgp= new Label();
   public Label wd= new Label();
   public HBox hBox;
   public BorderPane bl;
   public VBox vBox;
   public Elements(Data data){
       
       pb.setMinWidth(200);
       pb.progressProperty().bind(data.worker.progressProperty()); 
       
       ws.textProperty().bind(Bindings.format("%s", data.worker.stateProperty()));
       wd.textProperty().bind(data.worker.workDoneProperty().asString());
       pgp.textProperty().bind(Bindings.format("%5.2f%%", data.worker.progressProperty().multiply(100)));
       
       vBox=VBoxBuilder.create()
                .padding(new Insets(10,10,10,10))
               .spacing(10)
               .alignment(Pos.CENTER)
               .children(ws, wd,pgp)
               .build();
       hBox=HBoxBuilder.create()
               .padding(new Insets(10,10,10,10))
               .spacing(10)
               .alignment(Pos.CENTER)
               .children(sb, cb)
               .build();
       scene= SceneBuilder.create()  
               .root(BorderPaneBuilder.create()
               .padding(new Insets(10,10,10,10))
               .top(pb)
               .center(vBox)
               .bottom(hBox)
               .build())
               .build();
       
   }

  
   
    
}

開始Run==>

結束==>

Note:開發javaFX現在來說還是Netbeans比較好用一點點