The Java Developers Almanac 1.4

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e611. Setting Focus Traversal Keys for the Entire Application

This example changes the focus traversal keys for the entire application. For an example of how to change the focus traversal keys for a particular component, see e610 Setting Focus Traversal Keys in a Component.

    // Change the forward focus traversal keys for the application
    Set set = new HashSet(
        KeyboardFocusManager.getCurrentKeyboardFocusManager().getDefaultFocusTraversalKeys(
            KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS));
    set.clear();   // Call clear() if you want to eliminate the current key set
    set.add(KeyStroke.getKeyStroke("F2"));
    KeyboardFocusManager.getCurrentKeyboardFocusManager().setDefaultFocusTraversalKeys(
        KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, set);
    
    // Change the backward focus traversal keys for the application
    set = new HashSet(
        KeyboardFocusManager.getCurrentKeyboardFocusManager().getDefaultFocusTraversalKeys(
            KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS));
    set.clear();   // Call clear() if you want to eliminate the current key set
    set.add(KeyStroke.getKeyStroke("F3"));
    KeyboardFocusManager.getCurrentKeyboardFocusManager().setDefaultFocusTraversalKeys(
        KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, set);
    
    // Remove all forward and backward focus traversal keys for the application
    set.clear();
    KeyboardFocusManager.getCurrentKeyboardFocusManager().setDefaultFocusTraversalKeys(
        KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS, set);
    KeyboardFocusManager.getCurrentKeyboardFocusManager().setDefaultFocusTraversalKeys(
        KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS, set);

Related Examples

e606. Determining Which Component or Window Has the Focus
e607. Preventing a Component from Gaining the Focus
e608. Preventing a Window from Gaining the Focus
e609. Listening to All Focus Changes Between Components in an Application
e610. Setting Focus Traversal Keys in a Component
e612. Moving the Focus to the Next or Previous Focusable Component
e613. Modifying the Focus Traversal Order
e614. Setting the Initial Focused Component in a Window
e615. Finding the Next Focusable Component
e616. Determining If a Focus Lost Is Temporary or Permanent
e617. Determining the Opposite Component of a Focus Event
e618. Validating a JTextField When Permanently Losing the Focus
e619. Removing the Focus from the Application
e620. Activating a Keystroke When Any Component in the Window Has Focus
e621. Activating a Keystroke When Any Child Component Has Focus

See also: Colors Components Containers Cursors Drawing Events Frames GridBagLayout Images Shapes Simulating Events Text The Screen

© 2002 Addison-Wesley.