Question

Oke所以我更新了问题，整个班级包括问题是甚至函数 incrementVariables（）; 正在工作它没有着色JProgressBar的总消耗量。 JProgressBar将显示正确的消耗量，但不会为JProgressBar着色。

但是我将以下内容添加到方法initUI（）{cap_bar.setMaximum（5000）; cap_bar.setValue（1000）}然后JProgressBar获取其值并将其设置为彩色。

为什么当在incrementVariables（）中调用.setValue（）时，JProgressBar不会变色。

还有第二个问题：

从你可以看到我的类是乱七八糟的我有更多的类来处理其他方法无论如何什么是接近GUI开发的专业方法我猜它不是我这样做的方式。我在一个单独的类中创建了GUI，并使所有组件都可以通过公共变量调用，因此我可以在该类之外操作它们。

package ept.controller;

import ept.view.EPTMain;
import ept.model.EPTEvent_Model;
import ept.model.EPTLocal_Model;
import ept.model.EPTModule_Model;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.DefaultListModel;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JProgressBar;


public class EPTIndex_Controler {

    public EPTIndex_Controler() {
        initUI();
    }

    //Globals
    protected String selectedTower = null;
    protected Integer selectedModules = 0;

    public void setSelectedTower(String tower){
        this.selectedTower = tower;
    }

    public String getSelectedTower(){
        return this.selectedTower;
    }

    public void setSelectedModules(Integer i){
        this.selectedModules += i;
    }

    public void decrementSelectedModule(Integer i){
        this.selectedModules -= 1;
    }

    public Integer getSelectedModules(){
        return this.selectedModules;
    }

    private void initUI(){
        EPTMain runnable = new EPTMain();

        JLabel towerName = runnable.tower_name;
        JComboBox towerSelect = runnable.tower_selection;

        JLabel shield_ = runnable.shield_amount;
        JLabel armor_  = runnable.armor_amount;
        JLabel em_     = runnable.em_amount;
        JLabel th_     = runnable.th_amount;
        JLabel kn_     = runnable.kn_amount;
        JLabel ex_     = runnable.ex_amount;

        JProgressBar cpu_bar = runnable.cpu_bar;
        JProgressBar cap_bar = runnable.capacitor_bar;

        JList mod_browse = runnable.module_browser;
        JList mod_select = runnable.selected_modules;
        Font decode = new Font("monospaced", Font.PLAIN, 12);
        mod_select.setFont(decode);
        //mod_browse.setFont(decode);

        setTowerName(towerName, towerSelect, shield_, armor_, em_, th_, kn_, ex_, cap_bar, cpu_bar);
        removeTower(towerName, shield_, armor_, em_, th_, kn_, ex_, cap_bar, cpu_bar);

        addModule(mod_browse, mod_select, shield_, armor_, em_, th_, kn_, ex_, cap_bar, cpu_bar);
        removeModule(mod_select, shield_, armor_, em_, th_, kn_, ex_, cap_bar, cpu_bar);

        runnable.setExtendedState(EPTMain.MAXIMIZED_BOTH);
        runnable.setVisible(true);
    }



    protected DefaultListModel struct = new DefaultListModel();

    private void removeModule(final JList select, final JLabel shield_, final JLabel armor_, final JLabel em_, final JLabel th_,
            final JLabel kn_, final JLabel ex_, final JProgressBar cap_bar, final JProgressBar cpu_bar){
        select.addMouseListener(new MouseListener(){
            @Override
            public void mouseClicked(MouseEvent e) {
                String removable = select.getSelectedValue().toString();
                if(e.getClickCount() == 2 && removable.equals("No modules have been selected") == false){
                    String cap = select.getSelectedValue().toString().substring(61, 70).trim();
                    String cpu = select.getSelectedValue().toString().substring(75).trim();
                    Integer D_CAP = Integer.valueOf(cap).intValue();
                    Integer D_CPU = Integer.valueOf(cpu).intValue();
                    decConsumedCap(D_CAP);
                    decConsumedCpu(D_CPU);
                    struct.removeElement(select.getSelectedValue());
                    incrementVariables(shield_, armor_, em_, th_, kn_, ex_, cap_bar, cpu_bar);
                    select.setModel(struct);
                    decrementSelectedModule(1);
                }
            }
            @Override
            public void mousePressed(MouseEvent e) {}
            @Override
            public void mouseReleased(MouseEvent e) {}
            @Override
            public void mouseEntered(MouseEvent e) {}
            @Override
            public void mouseExited(MouseEvent e) {}
        });
    }

    private void addModule(final JList browse, final JList select, final JLabel shield_, final JLabel armor_, final JLabel em_, final JLabel th_,
            final JLabel kn_, final JLabel ex_, final JProgressBar cap_bar, final JProgressBar cpu_bar){
        browse.addMouseListener(new MouseListener(){
            @Override
            public void mouseClicked(MouseEvent e) {
                String addable = browse.getSelectedValue().toString();
                if(e.getClickCount() == 2 && getSelectedTower() != null && addable.charAt(0) == ' '){
                    String data[] = new EPTModule_Model().moduleData(addable.trim());
                    String module = data[0];
                    Integer capacitor = Integer.valueOf(data[1]).intValue(); setConsumedCap(capacitor);
                    Integer cpu = Integer.valueOf(data[2]).intValue(); setConsumedCpu(cpu);
                    String module_cap = data[1];
                    String module_cpu = data[2];
                    struct.addElement(String.format("> %-47s Capacitor: %-8s CPU: %s", module, module_cap, module_cpu));
                    select.setModel(struct);
                    setSelectedModules(1);
                    incrementVariables(shield_, armor_, em_, th_, kn_, ex_, cap_bar, cpu_bar);
                } else if (e.getClickCount() == 2 && getSelectedTower() == null){
                    new EPTEvent_Model().eventNoTowerSelected();
                }
            }
            @Override
            public void mousePressed(MouseEvent e) {}
            @Override
            public void mouseReleased(MouseEvent e) {}
            @Override
            public void mouseEntered(MouseEvent e) {}
            @Override
            public void mouseExited(MouseEvent e) {}
        });
    }

    private void removeTower(final JLabel type, final JLabel shield_, final JLabel armor_, final JLabel em_, final JLabel th_,
            final JLabel kn_, final JLabel ex_, final JProgressBar cap_bar, final JProgressBar cpu_bar){
        type.addMouseListener(new MouseListener(){
            @Override
            public void mouseClicked(MouseEvent e) {
                if(getSelectedModules() == 0){
                    type.setText("No Control Tower Selected");
                    setSelectedTower(null);
                    resetVariables(shield_, armor_, em_, th_, kn_, ex_, cap_bar, cpu_bar);
                } else {
                    new EPTEvent_Model().eventModuleSelected();
                }
            }
            @Override
            public void mousePressed(MouseEvent e) {}
            @Override
            public void mouseReleased(MouseEvent e) {}
            @Override
            public void mouseEntered(MouseEvent e) {}
            @Override
            public void mouseExited(MouseEvent e) {}    
        });
    }

    private void setTowerName(final JLabel type, final JComboBox type2, final JLabel shield_, final JLabel armor_, final JLabel em_, final JLabel th_,
            final JLabel kn_, final JLabel ex_, final JProgressBar cap_bar, final JProgressBar cpu_bar){
        type2.addActionListener(new ActionListener(){
            @Override
            public void actionPerformed(ActionEvent e) {
                if(getSelectedTower() != null){
                    new EPTEvent_Model().eventTowerSelected();
                } else {
                    setSelectedTower(type2.getSelectedItem().toString());
                    new EPTDispatch_Controler(type, type2.getSelectedItem().toString());
                    updateVariables(shield_, armor_, em_, th_, kn_, ex_, cap_bar, cpu_bar);

                }
            }
        });
    }

    //Referenced Globals
    protected int cap = 0;
    protected int consumed_cap = 0;
    protected int cpu = 0;
    protected int consumed_cpu = 0;

    public void setCap(int cap){
        this.cap = cap;
    }

    public int getCap(){
        return this.cap;
    }

    public void setCpu(int cpu){
        this.cpu = cpu;
    }

    public int getCpu(){
        return this.cpu;
    }

    public void resetConsumed(){
        this.consumed_cap = 0;
        this.consumed_cpu = 0;
    }

    public void setConsumedCap(int consumed_cap){
        this.consumed_cap += consumed_cap;
    }

    public void decConsumedCap(int consumed_cap){
        this.consumed_cap -= consumed_cap;
    }

    public int getConsumedCap(){
        return this.consumed_cap;
    }

    public void setConsumedCpu(int consumed_cpu){
        this.consumed_cpu += consumed_cpu;
    }

    public void decConsumedCpu(int consumed_cpu){
        this.consumed_cpu -= consumed_cpu;
    }

    public int getConsumedCpu(){
        return this.consumed_cpu;
    }

    //Referenced Globals
    protected int shield = 0;
    protected int armor = 0;
    protected double em = 00.00;
    protected double th = 00.00;
    protected double kn = 00.00;
    protected double ex = 00.00;

    public void setEm(double em){
        this.em = em;
    }

    public double getEm(){
        return this.em;
    }

    public void setTh(double th){
        this.th = th;
    }

    public double getTh(){
        return this.th;
    }

    public void setKn(double kn){
        this.kn = kn;
    }

    public double getKn(){
        return this.kn;
    }

    public void setEx(double ex){
        this.ex = ex;
    }

    public double getEx(){
        return this.ex;
    }

    public void setShield(int shield){
        this.shield = shield;
    }

    public int getShield(){
        return this.shield;
    }

    public void setArmor(int armor){
        this.armor = armor;
    }

    public int getArmor(){
        return this.armor;
    }

    private void setCL(JProgressBar t, int i){
        t.setValue(i);
    }

    private void incrementVariables(final JLabel shield_, final JLabel armor_, final JLabel em_, final JLabel th_,
            final JLabel kn_, final JLabel ex_, final JProgressBar cap_bar, final JProgressBar cpu_bar){

        cap_bar.setMaximum(getCap());
        cap_bar.setValue(getConsumedCap());
        cap_bar.setString(getConsumedCap() + " / " + getCap());
        cap_bar.setStringPainted(true);



        cpu_bar.setMaximum(getCpu());
        cpu_bar.setString(getConsumedCpu() + " / " + getCpu());
        cpu_bar.setStringPainted(true);
        cap_bar.setValue(getConsumedCpu());

        String shieldA = String.valueOf(getShield()).toString();
        shield_.setText(shieldA);

        String armorA = String.valueOf(getArmor()).toString();
        armor_.setText(armorA);

        double e = getEm();
        String emT = String.valueOf(e);
        em_.setText(emT);

        double t = getTh();
        String thT = String.valueOf(t);
        th_.setText(thT);

        double k = getKn();
        String knT = String.valueOf(k);
        kn_.setText(knT);

        double x = getEx();
        String exT = String.valueOf(x);
        ex_.setText(exT);

    }

    private void updateVariables(final JLabel shield_, final JLabel armor_, final JLabel em_, final JLabel th_,
            final JLabel kn_, final JLabel ex_, final JProgressBar cap_bar, final JProgressBar cpu_bar){

        String data[] = new EPTLocal_Model().serializeData(getSelectedTower());

        Integer capA = Integer.valueOf(data[1]).intValue();
        setCap(capA);
        cap_bar.setMaximum(getCap());
        cap_bar.setString(getConsumedCap() + " / " + getCap());
        cap_bar.setValue(getConsumedCap());
        cap_bar.setStringPainted(true);

        Integer cpuA = Integer.valueOf(data[2]).intValue();
        setCpu(cpuA);
        cpu_bar.setMaximum(getCpu());
        cpu_bar.setString(getConsumedCpu() + " / " + getCpu());
        cpu_bar.setValue(getConsumedCpu());
        cpu_bar.setStringPainted(true);

        Integer shieldAmount = Integer.valueOf(data[3]).intValue();
        setShield(shieldAmount);
        shield_.setText(data[3]);

        Integer armorAmount = Integer.valueOf(data[4]).intValue();
        setArmor(armorAmount);
        armor_.setText(data[4]);

        Double emT = Double.valueOf(data[5]).doubleValue();
        setEm(emT);
        em_.setText(data[5]);

        Double thT = Double.valueOf(data[6]).doubleValue();
        setTh(thT);
        th_.setText(data[6]);

        Double knT = Double.valueOf(data[7]).doubleValue();
        setKn(knT);
        kn_.setText(data[7]);

        Double exT = Double.valueOf(data[8]).doubleValue();
        setEx(exT);
        ex_.setText(data[8]);

    }

    private void resetVariables(final JLabel shield_, final JLabel armor_, final JLabel em_, final JLabel th_,
            final JLabel kn_, final JLabel ex_, final JProgressBar cap_bar, final JProgressBar cpu_bar){

        resetConsumed();

        setCap(0);
        cap_bar.setMaximum(getCap());
        cap_bar.setString(getConsumedCap() + " / " + getCap());
        cap_bar.setStringPainted(true);

        setCpu(0);
        cpu_bar.setMaximum(getCpu());
        cpu_bar.setString(getConsumedCpu() + " / " + getCpu());
        cpu_bar.setStringPainted(true);

        setShield(0);
        shield_.setText("0");

        setArmor(0);
        armor_.setText("0");

        setEm(00.00);
        em_.setText("00.00");

        setTh(00.00);
        th_.setText("00.00");

        setKn(00.00);
        kn_.setText("00.00");

        setEx(00.00);
        ex_.setText("00.00");

    }

}

Answer 1

Swing GUI是单线程的，有一个关于所有事件的一般规则必须在EDT上完成，

1）Concurrency in Swing和JProgressBar，

中更详细地描述了长答案

2）简短回答你必须从JProgressBar或SwingWorker调用Runnable#Thread的/减少值，但是需要将输出到GUI的invokeLater() < / p>

Java JProgressBar不会消耗消耗的价值

1 个答案: