Method for adding images to a JLabel Array

Question

I am trying to get the the bilde() methode add images too my JLabel Array when the nyOmgang button is pressed, its been a hard day and I have gotten stuck.

private JLabel[] kort = new JLabel[16];
private JLabel[] kortForside = new JLabel[16];
private JButton nyOmgang = new JButton("Del ut kortene");
private ImageIcon bakside = new ImageIcon("image/bgi14.gif");
private ImageIcon[] forside = new ImageIcon[8];
private HovedVinduet vindu;
private int[] index = new int[8];


public Hukommelse(HovedVinduet vindu){
    super(new GridBagLayout());

    this.vindu = vindu;

    setBackground(Color.GREEN);
    setPreferredSize(new Dimension(1280,720));

    GridBagConstraints c = new GridBagConstraints();
    c.fill = GridBagConstraints.RELATIVE;
    c.gridx = 5;
    c.gridy = GridBagConstraints.RELATIVE;

    nyOmgang.addActionListener(this);
    add(nyOmgang, c);
    Kortene();





    forside[0] = new ImageIcon("");
    forside[1] = new ImageIcon(""); 
    forside[2] = new ImageIcon("");
    forside[3] = new ImageIcon("");
    forside[4] = new ImageIcon("");
    forside[5] = new ImageIcon("");
    forside[6] = new ImageIcon("");
    forside[7] = new ImageIcon("");

}

public JLabel Kortene() {

    GridBagConstraints c = new GridBagConstraints();

    for (int i = 0; i< kort.length; i++){
        kort[i] = new JLabel();
        add(kort[i]);
        kort[i].addMouseListener(this);
    }
    return null;
}

public JLabel kortForside(){
    int tilfeldig;
    int tracker;
    tracker = 0;
    tilfeldig = (int)(Math.random()*8);
    while (tracker < kort.length ){
        if (index[tilfeldig]<2){
            kortForside[tracker] = new JLabel(forside[tilfeldig]);
            tracker++;
            index[tilfeldig]++;
        }
    }

    return null;
}

public void bilder(){

    for (int i = 0; i<kort.length; i++){
        kort[i] = new JLabel(bakside);
    }

}


@Override
public void mouseClicked(MouseEvent agr0) {
    // TODO Auto-generated method stub

}

@Override
public void mouseEntered(MouseEvent arg0) {
    // TODO Auto-generated method stub

}

@Override
public void mouseExited(MouseEvent arg0) {
    // TODO Auto-generated method stub

}

@Override
public void mousePressed(MouseEvent arg0) {
    // TODO Auto-generated method stub

}

@Override
public void mouseReleased(MouseEvent arg0) {
    // TODO Auto-generated method stub

}

@Override
public void actionPerformed(ActionEvent e) {
    if(e.getActionCommand().equals("Del ut kortene")){  
        bilder();

    }

}

Matt Wonlaw · Accepted Answer · 2011-03-13 16:32:23Z

1

In bilder, Change:

 kort[i] = new JLabel(bakside);

to:

 kort[i].setIcon(bakside);

This way the actual labels which are on your panel are updated. Before you were creating new labels and not altering the existing ones.

You might need to call a repaint on the container holding the labels.

edited Mar 13, 2011 at 16:32

answered Mar 10, 2011 at 20:05

Matt Wonlaw

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1 Comment

Matt Wonlaw Over a year ago

@Fadderman Glad to hear. Don't forget you can accept answers if they worked ;)

jzd · Accepted Answer · 2011-03-10 19:51:43Z

1

I see you create some labels with icons like so:

kortForside[tracker] = new JLabel(forside[tilfeldig]);

However, there is nowhere in your code that you add these labels to the GUI.

Unlike the other array of labels you create without images:

for (int i = 0; i< kort.length; i++){
    kort[i] = new JLabel();
    add(kort[i]);

answered Mar 10, 2011 at 19:51

jzd

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1 Comment

Fadderman Over a year ago

Jzd That array is for the mousepressed event, so when i press my mouse on the labels they will change to the other label array.

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