I am using swing and in my main frame(JFrame). I want that when ever user press + key one window lets say test should appear. My key listener works fine if I don't call the show method of the newly added JInternalFrame but when I call the show method of my JInternalFrame the KeyListener stops listening any more.
I have tried a lot to solve it but all in vain.
This is my keyListener:
Code:
_mainFrameKeyListener = new KeyListener()
{
public void keyPressed(KeyEvent arg0) {
// TODO Auto-generated method stub
System.out.println("the key pressed
Id is : " + arg0.getKeyCode());
if(arg0.getKeyCode() == 107){
test Test = new test();
_mainDesktopPane.add(Test);
Test.show();
}
}
public void keyReleased(KeyEvent arg0) {
// TODO Auto-generated method stub
}
public void keyTyped(KeyEvent arg0) {
// TODO Auto-generated method stub
}
};
Answer:
Sounds like you want a hot key instead of a key listener to avoid focus issues.
Code:
// Get the KeyStroke for our hot key
KeyStroke plus = KeyStroke.getKeyStroke(KeyEvent.VK_PLUS, 0, true);
// Get the input map for our component
// In this case we are interested
in key strokes in the focussed window
InputMap inputMap = panel.getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW);
// Map the key stroke to our "action key" (see below)
inputMap.put(plus, "my_action");
// Get the action map for our component
ActionMap actionMap = panel.getActionMap();
// Add the required action listener to out action map
actionMap.put("my_action", actionListener);
