Java Swing get input

Question

How can I change this code to accept any key (not only F5) and print the key?

component.getRootPane().getInputMap(JRootPane.WHEN_IN_FOCUSED_WINDOW).put(KeyStroke.getKeyStroke(KeyEvent.VK_F5, 0), "F5 Pressed");
component.getRootPane().getActionMap().put("F5 Pressed", new AbstractAction() {
    @Override
    public void actionPerformed(ActionEvent e) {
        // Code here
    }
});

You may be looking for a [`DocumentListener`](http://docs.oracle.com/javase/tutorial/uiswing/events/documentlistener.html). — trashgod, Aug 06 '13 at 13:39
you can't - keybindings are meant for _specific_ keyStrokes. What do you want to achieve? — kleopatra, Aug 06 '13 at 13:59
Seems like you wanted to add every key on the keyboard to be mapped with this component. At the same time, you wanted, it to be done with a minimum of code. I hope I am write in describing your situation. Please do replace __cahnhe__ to ___change___, seems like you meant to write the latter, but typed the former :-) — nIcE cOw, Aug 06 '13 at 14:07

score 2 · Answer 1 · edited May 23 '17 at 12:20

2

how can I ("cahnhe") this code to accept any key (not only F5) and print the key?

sorry this question doesn't make me some sence, in this form
basic is described in tutorial,
component.getRootPane() could be valid only for JFrame, JDialog, JWindow, practically only JFrame has accesible RootPane
otherwise to add Input/ActionMap to the desired JComponent directly

edited May 23 '17 at 12:20

Community

1
1

answered Aug 06 '13 at 13:45

mKorbel

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score 1 · Accepted Answer · answered Aug 06 '13 at 14:40

Use KeyboardFocusManager to register a KeyEventDispatcher:

KeboardFocusManager.getCurrentKeyboardFocusManager().addKeyEventDispatcher(new KeyEventDispatcher() {       
    @Override
    public boolean dispatchKeyEvent(KeyEvent ke) {
        if (yourComponent.hasFocus && ke.getID == KeyEvent.KEY_TYPED) {
            // Your code here
            // Use ke.getKeyChar() to detect which key was pressed.
        }
    }
}

Java Swing get input

2 Answers2