我的setText不会更新我的JTextField吗? [英] My setText isn't updating my JTextField?

问题描述

因此，我在这里丢失了一些东西，但是我无法获得setAttributes方法来更新应有的敏捷文本字段.调用该方法和该调用的类可以很好地传递所需的值，如system.out.println(agility)所示.但是，在下面的行中，我尝试设置agilityAmount txtfield，但它不会显示.我在做什么错了?

So I'm missing something here, but I can't get my setAttributes method to update the agility text field like it's supposed to. The class that calls the method and the call works fine passing in the needed values as seen by the system.out.println(agility). However in just the line below I try to set the agilityAmount txtfield and it doesn't display. What am I doing wrong?

    class GraphicalInterface extends JFrame implements Runnable, KeyListener
{


    GraphicalInterface() {
    }
    JFrame mainwindow;

    //declare panels
    JPanel panel1=new JPanel();
    JPanel panel2=new JPanel();
    JPanel invictusWelcome=new JPanel();
    JPanel gameStartQuit=new JPanel();
    JPanel panel3=new JPanel();
    JPanel panel4=new JPanel();
    JPanel panel5=new JPanel();
    JPanel panel6=new JPanel();
    JPanel panel7=new JPanel(new GridLayout(7, 1));
    JPanel mappanel=new JPanel();
    JPanel attribpanel=new JPanel(new GridLayout(12,0));

    //declare buttons
    JButton startGame;
    JButton quitButton;
    JButton mapButton;
    JButton townButton;
    JButton castleButton;
    JButton forestButton;
    JButton exitButton;
    JButton fighterSelect;
    JButton hybridSelect;
    JButton magicSelect;
    JButton characterConfirm;

    //declare labels
    JLabel agility=new JLabel("Agility:");
    JLabel health=new JLabel("Health: ");
    JLabel mana=new JLabel("Mana: ");
    JLabel strength=new JLabel("Strength: ");
    JLabel intelligence=new JLabel("Intelligence: ");
    JLabel charNameLabel=new JLabel("Name: ");
    JTextField charNameLabelField=new JTextField();
    JTextField healthAmount=new JTextField();
    JTextField manaAmount=new JTextField();
    JTextField currentHealthAmount=new JTextField();
    JTextField currentManaAmount=new JTextField();
    JTextField strengthAmount=new JTextField();
    JTextField agilityAmount=new JTextField();
    JTextField intelligenceAmount=new JTextField();


    JTextField description;

    //declares attribute values
    String name="";
    int agi=0;
    int str=0;
    int intel=0;
    int currentHealth=0;
    int maxHealth=0;
    int currentMana=0;
    int maxMana=0;
    int location=0;


    //Initialize Listener Object
    Listener aListener= new Listener();
    Location locationObj= new Location();


    //images
    private Image map;
    private Image attribBackground;
    private Image charMagic;
    private Image charHybrid;
    private Image charFighter;
    private Image town;
    private Image cave;
    private Image forest;
    private Image castle;
    private Image characterIcon;

    protected void initializeWindows()
    {
        mainwindow=new JFrame("Invictus Maneo");
        mainwindow.setVisible(true);
        mainwindow.setPreferredSize(new Dimension(900, 700));
        mainwindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        mainwindow.setResizable(false);

        panel1.setVisible(true);
        panel1.setPreferredSize(new Dimension(800, 550));
        mainwindow.getContentPane().add(panel1, BorderLayout.NORTH);

        panel2.setVisible(true);
        panel2.setPreferredSize(new Dimension(800, 100));

        //Initializes buttons
        startGame=new JButton("Begin Adventure");
        panel2.add(startGame, BorderLayout.SOUTH);
        startGame.addActionListener(aListener);

        quitButton=new JButton("Quit");
        panel2.add(quitButton, BorderLayout.SOUTH);
        quitButton.addActionListener(aListener);

        mapButton=new JButton("Map");
        mapButton.addActionListener(aListener);

        townButton=new JButton("Town");
        townButton.addActionListener(aListener);

        castleButton=new JButton("Castle");
        castleButton.addActionListener(aListener);

        exitButton=new JButton("Exit Map");
        exitButton.addActionListener(aListener);

        forestButton=new JButton("" +"Forest");
        forestButton.addActionListener(aListener);

        fighterSelect=new JButton("Fighter");
        fighterSelect.addActionListener(aListener);
        hybridSelect=new JButton("Hybrid");
        hybridSelect.addActionListener(aListener);
        magicSelect=new JButton("Magic");
        magicSelect.addActionListener(aListener);

        //initialize attribute panel
        //attribpanel=new JPanel(new GridLayout(12,0));
        attribpanel.setVisible(false);
        attribpanel.setPreferredSize(new Dimension(200, 500));
        attribpanel.setBackground(null);


        attribpanel.add(charNameLabel);
        attribpanel.add(charNameLabelField);
        attribpanel.add(health);
        attribpanel.add(healthAmount);
        attribpanel.add(mana);
        attribpanel.add(manaAmount);
        attribpanel.add(strength);
        attribpanel.add(strengthAmount);
        attribpanel.add(agility);
        attribpanel.add(agilityAmount);
        attribpanel.add(intelligence);
        attribpanel.add(intelligenceAmount);

        mainwindow.getContentPane().add(panel2, BorderLayout.SOUTH);

        panel3.setVisible(true);
        panel3.setPreferredSize(new Dimension(200, 600));

        panel4.setVisible(true);
        panel4.setPreferredSize(new Dimension(650, 500));


        panel5.setVisible(true);
        panel5.setPreferredSize(new Dimension(600, 600));
        panel5.setBackground(getBackground());

        panel6.setVisible(false);
        panel6.setPreferredSize(new Dimension(500, 500));

        panel7.setVisible(false);
        panel7.setPreferredSize(new Dimension(100, 200));


        //Adds sub panels to panel 1
        panel1.add(panel3, BorderLayout.NORTH);
        panel1.add(panel4, BorderLayout.NORTH);

        //panel5.setBorder(BorderFactory.createLineBorder (Color.black, 2));
        //panel6.setBorder(BorderFactory.createLineBorder (Color.black, 2));
        panel2.setBorder(BorderFactory.createLineBorder (Color.black, 2));
        attribpanel.setBorder(BorderFactory.createLineBorder (Color.black, 2));
        //panel4.setBorder(BorderFactory.createLineBorder (Color.black, 2));

        panel4.add(panel5, BorderLayout.NORTH);

        loadPictures();

        BufferedImage myPicture;
        try {
            myPicture = ImageIO.read(new File("C:\\test\\GameTitle.jpg"));
            JLabel gameTitle = new JLabel(new ImageIcon( myPicture ));
            panel5.add( gameTitle );
            panel5.repaint();
            panel1.repaint();

        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        BufferedImage map;
        try {
            map = ImageIO.read(new File("C:\\test\\map.jpg"));
            JLabel mapLabel = new JLabel(new ImageIcon( map ));
            panel6.add( mapLabel );
            panel1.repaint();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        mainwindow.pack();


        }   

    void setAttributePanel(int s, int a, int i, int h, int m)
    {

         agi=a;
         str=s;
         intel=i;
         currentHealth=h;
         maxHealth=h;
         currentMana=m;
         maxMana=m;

         System.out.println(agi+": agility");
         agilityAmount.setText(agi+"");
         attribpanel.repaint();
         panel3.repaint();
         panel1.repaint();


    }




private class Listener implements ActionListener
 {

    public void actionPerformed(ActionEvent a) 
    {
        if (a.getSource()==quitButton)
        {
            System.exit(0);
        }

        else if (a.getSource()==startGame)
        {

            startGame.setVisible(false);
            panel2.add(mapButton);
            mapButton.setVisible(true);
            panel2.repaint();
            panel5.setVisible(false);
            panel3.add(attribpanel);
            attribpanel.setVisible(true);
            Character charChosenObj= new Character();
            charChosenObj.characterCreation();
            attribpanel.repaint();
            panel3.repaint();
        }

        else if (a.getSource()==mapButton)
        {
            System.out.println("Where are you going?");
            panel4.add(panel6, BorderLayout.CENTER);
            panel4.add(panel7);
            panel7.add(townButton);
            panel7.add(forestButton);
            panel7.add(castleButton);
            panel7.add(exitButton);
            panel5.setVisible(false);
            panel6.setVisible(true);
            panel7.setVisible(true);
            panel4.repaint();


        }

        else if (a.getSource()==exitButton)
        {
            panel5.setVisible(true);
            panel6.setVisible(false);
            panel7.setVisible(false);

        }

        else if (a.getSource()==townButton)
        {
            System.out.println("Pick up some milk will ya?");
            locationObj.setLocation(1);

        }

        else if (a.getSource()==forestButton)
        {
            System.out.println("Watch for falling trees.");
            locationObj.setLocation(2);
            Combat combatObj=new Combat();
            combatObj.startCombat();

        }

        else if (a.getSource()==castleButton)
        {
            System.out.println("Are you sure... it's kinda dark in there?");
            locationObj.setLocation(3);


        }

    }

 }

推荐答案

如果您布置了一个组件并且可见，并且之后更改了首选大小(例如，通过添加文本)，则必须强制执行新的布局周期，例如通过使组件无效"或验证"容器.

If you have a component laid out and visible and change the preferred size afterwards (by adding text, for example) you must force a new layout cycle, fore example by "invalidate " the component or "validate" the container.

还有其他问题

• 当您不打算像这样使用JFrame时，为什么GraphicalInterface是JFrame
• 在侦听器中添加组件时，您应该准备将它们删除到其他位置或仅通过"setVisible"处理可见性
• 也许最好使用一些将其子级调整为可用大小的布局，例如GridBagLayout
• 如mKorbel所述，只有在容器完全配置后，才应"setVisible".您将改善用户体验:-)

这篇关于我的setText不会更新我的JTextField吗?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！