Activating a Keystroke When Any Child Component Has Focus : Key Event « Event « Java

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Java » Event » Key EventScreenshots 
Activating a Keystroke When Any Child Component Has Focus
    


import java.awt.event.ActionEvent;

import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.KeyStroke;

public class Main {
  public static void main(String[] argvthrows Exception {
    JButton component = new JButton();
    MyAction action = new MyAction();

    component.getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT).put(
        KeyStroke.getKeyStroke("F2"), action.getValue(Action.NAME));
  }
}

class MyAction extends AbstractAction {
  public MyAction() {
    super("my action");
  }

  public void actionPerformed(ActionEvent e) {
    System.out.println("hi");

  }
}

   
    
    
    
  
Related examples in the same category
1. KeyListener, ActionListener Demo 1KeyListener, ActionListener Demo 1
2. KeyListener, ActionListener Demo 2KeyListener, ActionListener Demo 2
3. Key event on frameKey event on frame
4. Responding to KeystrokesResponding to Keystrokes
5. Key Event DemoKey Event Demo
6. Set java.awt.Container.getFocusTraversalKeys(int id)
7. KeyStroke.getKeyStroke("F2")
8. Activating a Keystroke When Any Component in the Window Has Focus
9. InputMap javax.swing.JComponent.getInputMap(int condition)
10. Listening to All Key Events Before Delivery to Focused Component
11. List keystrokes in the WHEN_ANCESTOR_OF_FOCUSED_COMPONENT input map of the component
12. List keystrokes in the WHEN_IN_FOCUSED_WINDOW input map of the component
13. Converting a KeyStroke to a String
14. Creating a KeyStroke and Binding It to an Action
15. void InputMap.put(KeyStroke keyStroke, Object actionMapKey)
16. Map actions with keystrokes
17. Handling Key Presses
18. Get key pressed as a key character (which is a Unicode character)
19. Get key pressed as a key code
20. Get Key Text
21. KeyStroke to String
22. Construct a new key description from a given universal string descriptionConstruct a new key description from a given universal string description
23. Reads for modifiers and creates integer with required mask
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