JPanel « Focus « Java Swing Q&A

1. Obtaining focus on a JPanel stackoverflow.com

I have a JPanel inside a JFrame. I have registered a KeyListener, based on which I want to update the JPanel. The problem I am having is that I cannot get ...

2. Grab focus to a JPanel in a JLayeredPane stackoverflow.com

I have a JLayeredPane with 2 layers the first layer is a JPanel Wrapping an Image. the second layer is another object which extends JPanel called ResizableRectangle and implements KeyListener. I've overrode the KeyPressed ...

3. Bring a component on a JPanel to front (Java) stackoverflow.com

In VB, you can use zOrder. In .Net, it's .SetChildIndex. Before you ask, no I'm not using a layout manager in this case. If you have two components on top of each other, ...

4. select JPanel parent at the back stackoverflow.com

Below is SSCCE to describe my problem.

import java.awt.Color;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.JPanel;

public class APanel extends JPanel{

public APanel() {

    this.setVisible(true);
    this.setBackground(Color.red);
    this.addMouseListener(new MouseListener() {

 ...

5. JPanel Won't Focus After Switching in CardLayout stackoverflow.com

I am creating a Tetris clone as a personal project. In order to switch between the menus, I am using a CardLayout, but I have come across a problem. When I ...

6. Setting JPanel Focus coderanch.com

7. Focus on JPanel coderanch.com

Thanks for the info. It's been really helpfull. I've written a subclass of JPanel and wrote a new add method for it, adding the focuslistener to the component. But now, switching between components on the same panel, will first call the focusLost on the first component, and then the focusGained on the second component. On each focusLost, I reset the panels ...

8. Can't Focus On JPanel coderanch.com

I have a JFrame that contains three panels: two panels for buttons and text boxes and one custom JPanel. The panels for the buttons and text boxes are north and south and the custom one is in the center. I need to get focus to my center panel for registering keystroke events, but the focus won't leave my other components, even ...

9. focus of JPanel coderanch.com

import java.awt.event.FocusEvent; import java.awt.event.FocusListener; import java.awt.event.WindowEvent; import java.awt.event.WindowFocusListener; import javax.swing.JFrame; import javax.swing.JPanel; public class Main { public static void main(String ... args){ JFrame frame = new JFrame(); frame.addWindowFocusListener(new WindowFocusListener() { @Override public void windowLostFocus(WindowEvent arg0) { } @Override public void windowGainedFocus(WindowEvent arg0) { // TODO Auto-generated method stub System.out.println("window focus"); } }); JPanel panel = new JPanel(); panel.addFocusListener(new FocusListener(){ @Override public ...

10. How to have focus in 2 JPanels on 1 JFrame? forums.oracle.com

Hey all.. Like i wrote in the subject, how can i do that? I have 2 JPanels in 1 JFrame. 1 top JPanel and 1 buttom JPanel. I've a keylistener in top JPanel and a buttonslistener in buttom JPanel. When i press on the button on the buttom JPanel, then my keylistener wont trigger in the top JPanel. Plz help. Thx. ...

11. technic to detect loosing focusing on JPanel forums.oracle.com

I have a form with several JPanels (jPanel1, JPanel2, JPanel3) nesting on it. Each JPanel containts some components. Now I want to detect whether loosing focusing on JPanel1 when setting focus on JPanel2 or JPanel3. But I don't know how to do. So if anyone has solutions for this issue, please show me. Thanks alot.

12. JPanel loses keyboard focus forums.oracle.com

Swing related questions should be posted in the Swing forum. Quit "bumping" a posting. People answer questions when they know the answer and have time. You question is no more important than anybody elses. I didnt wanna post the code, but since i was sure that someone gonna ask for it, i posted it anyways. Yes, you should always post code, ...