CODEWITHSUNDEEP
javaswingjtogglebuttonitemlistenerchangelistener
Tech Nerd
Tech Nerd

Reputation: 832

Is it possible to make JToggle text depend on its state?

Is it possible for me to set the text on JToggle button to "ON" if it is selected and if not, as "OFF"? I'm trying with this code:

    if(togbut.isSelected()){
        togbut.setText("ON");
    }
     else if(!togbut.isSelected()){
           togbut.setText("OFF");
    }

But it doesn't work. I use NetBeans 7.3.

Upvotes: 0

Views: 7919

Answers (5)

Martin Dvoracek
Martin Dvoracek

Reputation: 1738

You need to add ItemListener interface to the class, where you use your JToggleButton. The implementation should like this: 

public class MyClassThatUsesToggleButton implements  ItemListener{

    //
    // some code
    //
    JToggleButton toggleButton;

    public void itemStateChanged(ItemEvent e) {
        if(e.getStateChange() == ItemEvent.SELECTED)
        {
            toggleButton.setText("On!");
            totalGUI.setBackground(Color.green);
        }
        else
        {
            toggleButton.setText("Off");
            totalGUI.setBackground(Color.red);
        } 
    //
    // some more code
    //
    }

Upvotes: 1

Vinayak Pahalwan
Vinayak Pahalwan

Reputation: 3005

Um Try this:

JToggleButton togbut = new JToggleButton("Click");
togbut.addItemListener(new ItemListener() {
   public void itemStateChanged(ItemEvent ev) {
      if(ev.getStateChange()==ItemEvent.SELECTED){
        togbut.setText("ON");
      } else if(ev.getStateChange()==ItemEvent.DESELECTED){
        togbut.setText("OFF");
      }
   }
});

Upvotes: 2

Kai
Kai

Reputation: 39641

You have to attach an ItemListener to that toggle button:

final JToggleButton togbut = new JToggleButton();
togbut.addItemListener(new ItemListener() {

    @Override
    public void itemStateChanged(ItemEvent e) {
        if (e.getStateChange() == ItemEvent.SELECTED) {
            togbut.setText("ON");
        } else {
            togbut.setText("OFF");
        }
    }
});

Upvotes: 2

DeadlyJesus
DeadlyJesus

Reputation: 1533

Just add an action listener to your togbut:

togbut.AddActionListener(this);

And add your code in the ActionPerformed() method.
Also I don't think a JToggleButton can have other state than Selected and !Selected So you can changee your if structure to this: 

if(togbut.isSelected()){
    togbut.setText("ON");
} else {
    togbut.setText("OFF");
}

Upvotes: 1

Gilbert Le Blanc
Gilbert Le Blanc

Reputation: 51445

Your code is almost correct.

It has to be put in the change listener of your toggle button.

    toggleButton.addChangeListener(new ChangeListener() {
        @Override
        public void stateChanged(ChangeEvent event) {
            if (toggleButton.isSelected()){
                toggleButton.setText("ON");
            } else {
                toggleButton.setText("OFF");
            }
        }
    });

Upvotes: 4

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