first sorry for my bad english.
Hi, i'm trying to use a confirmDialog with a YES_NO_OPTION.
what i want is that when i close a frame a confimDialog will be displayed asking me if want to close.
if i press yes everyThing most be closed, if i press no the confirmDialog will disapear
but the problem is even if i press no button the frame close this is my code:
final JFrame frame = new JFrame("2D Game");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(1600,600);
frame.setResizable(false);
private void continuerButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_continuerButtonActionPerformed
int level=getlevel();
System.out.println(niveau);
if(niveau == 1)
{
this.dispose();
frame.add(new Board());
frame.setVisible(true);
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e)
{
doExitOption();
}
});
}
}
and this is doExitOption methode:
public void doExitOption()
{
int option=JOptionPane.showConfirmDialog(null, "do you want to quit the game", "Warnning",JOptionPane.YES_NO_OPTION);
if(option == JOptionPane.YES_OPTION)
{
frame.dispose();
}
}
See Closing an Application. It can manager the default close operation for you.
You need to change the JFrame's default close operation so that your call to dispose is the only call being made to dispose the window:
frame.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
Change Default closing of JFrame to DO_NOTHING_ON_CLOSE .
Related
Good afternoon!
I have this code:
private static class ClickListener implements ActionListener {
public ClickListener() {
}
#Override
public void actionPerformed(ActionEvent e) {
JFrame frame = new JFrame();
JLabel label = new JLabel("Opção Indisponivel");
JPanel panel = new JPanel();
frame.add(label, BorderLayout.CENTER);
frame.setSize(300, 400);
JButton button = new JButton("Voltar");
button.addActionListener(new CloseWindowListener());
panel.add(button);
frame.add(panel, BorderLayout.SOUTH);
frame.setVisible(true);
}
}
private static class CloseWindowListener implements ActionListener {
public CloseWindowListener() {
}
#Override
public void actionPerformed(ActionEvent e) {
setVisible(false);
}
}
What I want to do is when i click on the button "voltar" (which is in another window, not on the "main" one as you can see) it closes the windows but not the app itselft. The setVisible line gives me an error about that it cannot be referenced by a static context which I understand because I need the reference of the frame. How do I solve this?
EDIT: Changed JFrame to JDialog but still no sucess. Both windows are shutdown.
Thanks in advance,
Diogo Santos
The setVisible line gives me an error about that it cannot be referenced by a static context which I understand because I need the reference of the frame. How do I solve this?
You can access the component that generated the event. Then you can find the window the component belongs to. This will give you generic code to hide any window:
//setVisible(false);
JButton button = (JButton)e.getSource();
Window window = SwingUtilities.windowForComponent(button);
window.setVisible(false);
You can also check out Closing an Application. The ExitAction can be added to your button. Now when you click the button it will be like clicking the "x" (close) button of the window. That is whatever default close operation your specify for the window will be invoked.
In this program i'm facing two problems when i close the JDialog the dialog doesn't close properly like EXIT_ON_CLOSE.And how to give title to this dialog.
Code
public class Dialog extends JDialog{
public Dialog(){
setSize(300,200);
setLocationRelativeTo(null);
setVisible(true);
}
}
Main Method
public class Main {
public static void main(String[] args) {
Dialog frame = new Dialog();
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
int result = JOptionPane.showConfirmDialog(frame, "Are you sure you want to exit the application? ",
"EXIT Application", JOptionPane.YES_NO_OPTION);
if (result == JOptionPane.YES_OPTION)
System.exit(0);
else if (result == JOptionPane.NO_OPTION) {
frame.setDefaultCloseOperation(frame.DO_NOTHING_ON_CLOSE);
}
}
});
}
}
not like EXIT_ON_CLOSE
EXIT_ON_CLOSE is not supported for a JDialog.
but DISPOSE_ON_CLOSE close the dialog slowly
It closes the dialog immediately and focus will go back to the parent JFrame.
Is there a way that i can Close the whole program in JDialog
You need to close the frame.
Maybe you are trying to close the application from a popup dialog? If so then check out Closing an Application.
It will show you how to:
Use a WindowListener to handle windowClosing and display a popup dialog, or
use the suggested class to make the coding easier.
I have a java application, want to close the GUI with confirmation window to close the application
for example:-
frmViperManufacturingRecord.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
frmViperManufacturingRecord.addWindowListener( new WindowAdapter(){
public void windowClosing(WindowEvent e){
JFrame frame = (JFrame)e.getSource();
int result = JOptionPane.showConfirmDialog(frame, "Are you sure you want to close the application?", "Please Confirm",JOptionPane.YES_NO_OPTION);
if (result == JOptionPane.YES_OPTION)
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
});
This is working fine, when I press the window close (x) button, but I want to bring this event to a button to perform the action 'On Click', since I am newbie finding difficulties to bring it inside the 'actionPerformed'
So far I have tried the code below and it didn't work...
//close window button
JButton btnCloseWindow = new JButton("Close Window");
btnCloseWindow.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
//frmViperManufacturingRecord.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//frmViperManufacturingRecord.dispose();
//System.exit(0);
JFrame frame = (JFrame)e.getSource();
int result = JOptionPane.showConfirmDialog(frame, "Are you sure you want to close the application?", "Please Confirm",JOptionPane.YES_NO_OPTION);
if (result == JOptionPane.YES_OPTION)
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
});
Please give me some directions on this, thanks
Change this:
if (result == JOptionPane.YES_OPTION)
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
to
if (result == JOptionPane.YES_OPTION)
System.exit(0);
}
frame.setDefaultCloseOperation is what happens when someone clicks the 'x' to close the window. Every other way to exit is controlled by you. The best way is to have your window closing listener and action listener call the same method that will pop up the dialog and call System.exit(0) if the user wants to exit. This will also help you with cleanup operations.
Sample code:
public class Test extends JPanel implements WindowListener {
public Test() {
setLayout(new BorderLayout());
add(new JLabel("This is a test."), BorderLayout.CENTER);
JButton b = new JButton("Exit");
b.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
exit();
}
});
add(b, BorderLayout.SOUTH);
}
public static void main(String[] args) throws Exception {
JFrame f = new JFrame();
Test t = new Test();
f.add(t, BorderLayout.CENTER);
f.addWindowListener(t);
f.pack();
f.setVisible(true);
}
public void windowClosing(WindowEvent e) {
exit();
}
private void exit() {
System.exit(0);
}
}
You can try:
if (result == JOptionPane.YES_OPTION){
frame.dispose();
}
Also note CastException on the line 122.
Instead of
JFrame frame = (JFrame)e.getSource();
change to:
JFrame frame = new JFrame();
if still not working then try
frame.setVisible(false);
frame.dispose();
in if(result == JOptionPane.YES_OPTION){} block
I want to call a method confirmExit() when the red close button of the title bar of a JFrame is clicked.
How can I capture that event?
I'd also like to prevent the window from closing if the user chooses not to proceed.
import javax.swing.JOptionPane;
import javax.swing.JFrame;
/*Some piece of code*/
frame.addWindowListener(new java.awt.event.WindowAdapter() {
#Override
public void windowClosing(java.awt.event.WindowEvent windowEvent) {
if (JOptionPane.showConfirmDialog(frame,
"Are you sure you want to close this window?", "Close Window?",
JOptionPane.YES_NO_OPTION,
JOptionPane.QUESTION_MESSAGE) == JOptionPane.YES_OPTION){
System.exit(0);
}
}
});
If you also want to prevent the window from closing unless the user chooses 'Yes', you can add:
frame.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
Override windowClosing Method.
public void windowClosing(WindowEvent e)
It is invoked when a window is in the process of being closed. The close operation can be overridden at this point.
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
also works. First create a JFrame called frame, then add this code underneath.
This may work:
jdialog.addWindowListener(new WindowAdapter() {
public void windowClosed(WindowEvent e) {
System.out.println("jdialog window closed event received");
}
public void windowClosing(WindowEvent e) {
System.out.println("jdialog window closing event received");
}
});
Source: https://alvinalexander.com/java/jdialog-close-closing-event
This is what I put as a menu option where I made a button on a JFrame to display another JFrame. I wanted only the new frame to be visible, and not to destroy the one behind it. I initially hid the first JFrame, while the new one became visible. Upon closing of the new JFrame, I disposed of it followed by an action of making the old one visible again.
Note: The following code expands off of Ravinda's answer and ng is a JButton:
ng.addActionListener((ActionEvent e) -> {
setVisible(false);
JFrame j = new JFrame("NAME");
j.setVisible(true);
j.addWindowListener(new java.awt.event.WindowAdapter() {
#Override
public void windowClosing(java.awt.event.WindowEvent windowEvent) {
setVisible(true);
}
});
});
Try this:
setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
It will work.
My program starts with a picture with a textfield in a JFrame. I want when the user types start it closes the picture JFrame and opens another JFrame with the main program. I've tried
processEvent(new WindowEvent(this, WindowEvent.WINDOW_CLOSING));
on the Image frame but it closes all the windows.
The method JFrame.setVisible can be used to hide or display the JFrame based on the arguments, while JFrame.dispose will actually "destroy" the frame, by closing it and freeing up resources that it used. Here, you would call setVisible(false) on the picture frame if you intend to reopen it, or call dispose() on the picture frame if you will not be opening it again, so your program can free some memory. Then you would call setVisible(true) on the main frame to make it visible.
you also can use this code
for example
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
Maybe if you set the picture JFrame's default close operation to something besides EXIT_ON_CLOSE, perhaps DISPOSE_ON_CLOSE, you can prevent your application from closing before the second JFrame appears.
This post is a bit old but nevertheless.
If you initialize the form like that:
JFrame firstForm = new JFrame();
firstForm.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
firstForm.setSize(800, 600);
firstForm.setLocationRelativeTo(null);
firstForm.setVisible(true);
And for instance create or open another form by a button:
JFrame secondForm = new JFrame();
secondForm.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
secondForm.setSize(800, 600);
secondForm.setLocationRelativeTo(null);
secondForm.setVisible(true);
this.dispatchEvent(new WindowEvent(this, WindowEvent.WINDOW_CLOSING));
This will dispose and destroy the first window without exiting the program.
The key is to set setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE).
It also raises the events (I've tested it with the WindowClosing event).
Here is my solution to this problem:
public void actionPerformed(ActionEvent e) {
String userName = textField.getText();
String password = textField_1.getText();
if(userName.equals("mgm") && password.equals("12345")) {
secondFrame nF = new secondFrame();
nF.setVisible(false);
dispose();
}
else
{
JOptionPane.showMessageDialog(null, " Wrong password ");
}
}
you also can use this :
opens_frame frameOld= new opens_frame();
frameOld.setVisible(true);
Closing_Frame.setVisible(false);
Closing_Frame.dispose();
private void closeTheCurrentFrameAndOpenNew(java.awt.event.ActionEvent evt){
dispose();//To close the current window
YourClassName closeCurrentWindow = new YourClassName();
closeCurrentWindow.setVisible(true);//Open the new window
}
I was searching for the same thing and found that using "this" is the best and easiest option.
you can Use the following code:
this.dispose();
For netbeans use the reference of the current Object and setVisible(false);
for example
private void submitActionPerformed(java.awt.event.ActionEvent evt)
{
// TODO add your handling code here:
this.setVisible(false);//Closing the Current frame
new login().setVisible(true);// Opening a new frame
}
First call it
new Window().nextjframe.setVisible(true);
thisjframe.setVisible(false);
if(username.equals("gaffar")&&password.equals("12345"))
{
label.setText("Be ready to continue");
//Start of 2nd jframe
NewJFrame1 n=new NewJFrame1();
n.setVisible(true);
//Stop code for ist jframe
NewJFrame m=new NewJFrame();
m.setVisible(false);
dispose();
}
This is what i came up for opening a new jframe while closing the other one:
JFrame CreateAccountGUI = new JFrame();
CreateAccountGUI.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
CreateAccountGUI.setSize(800, 600);
CreateAccountGUI.setLocationRelativeTo(null);
CreateAccountGUI.setVisible(true);
this.setVisible(false);