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

Question

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.

Where have you put this code? In a Listener which you have registered on change events of that toggle button? — Kai, May 03 '13 at 12:38

score 4 · Accepted Answer · answered May 03 '13 at 12:41

4

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");
            }
        }
    });

answered May 03 '13 at 12:41

Gilbert Le Blanc

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1

or ItemListener, ActionListner – mKorbel May 03 '13 at 12:42

score 2 · Answer 2 · answered May 03 '13 at 12:43

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");
        }
    }
});

score 2 · Answer 3 · answered May 03 '13 at 12:43

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");
      }
   }
});

score 1 · Answer 4 · answered May 03 '13 at 12:42

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");
}

score 1 · Answer 5 · answered May 03 '13 at 12:45

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
    //
    }

or you can use the approach, that @Gilbert Le Blanc recommends you...If it's better mine or his depends imho on how many actions you want to catch.. — Martin Dvoracek, May 03 '13 at 12:46

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

5 Answers5