Swing JRadioButton autoselect after get focus

Question

I have three JRadioButtons in ButtonGroup. With keyboard navigation with TAB I can go through this JRadioButtons (change focus), with SPACE I can select JRadioButton with focus. Is it possible that with TAB will be changed not only focus but also state of JRadioButton?

@mKorbel it's on jdialog with just 3 radiobuttons and two buttons (ok, cancel) — 1ac0, Mar 25 '13 at 20:54
but for JRadioButtons in the ButtonGroup is possible to select only one element (by default, I see there hack), maybe proper way for you — mKorbel, Mar 25 '13 at 20:55

score 3 · Accepted Answer · answered Mar 25 '13 at 20:51

3

Add a FocusListener to the radio button to select it once it gains focus.

answered Mar 25 '13 at 20:51

camickr

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score 1 · Answer 2 · answered Mar 25 '13 at 21:15

Just a quick tip for other readers:

myRadioButton.addFocusListener(new FocusListener(){
    @Override
    public void focusLost(FocusEvent e){
        myRadioButton.setSelected(false);
    }
    @Override
    public void focusGained(FocusEvent e){
        myRadioButton.setSelected(true);
    }
});

Swing JRadioButton autoselect after get focus

2 Answers2