CODEWITHSUNDEEP
javaswingjframe
GregH
GregH

Reputation: 5457

Empty JFrame showing on screen

I currently am using a JOptionPane to pop up a message and display it to the user. The message is not always on top of other windows so I put it in a dummy JFrame (errorFrame) and set errorFrame to always be on top. This works for keeping the errorFrame always on top, but it creates a second, empty frame in the upper right of the screen. The option pane appears at 100,100 just like I am setting the location of the dummy frame which contains it. Why is this second frame being created? All help is appreciated

UPDATE: I got the idea to put the JOptionPane inside of a JFrame from this post: JOptionPane won't show its dialog on top of other windows

try {
    JFrame errorFrame = new JFrame();
    errorFrame.setVisible(true);
    errorFrame.setAlwaysOnTop(true);
    if (true) {
        JOptionPane.showMessageDialog(errorFrame,
              "blah blah",
              "blahblahblah",
              JOptionPane.WARNING_MESSAGE);

        return true;
    }
    errorFrame.dispose();
}

Upvotes: 3

Views: 335

Answers (2)

Hari Kiran
Hari Kiran

Reputation: 208

Instead of creating a dummy frame, set the parent frame to be temporarily on top

JFrame frame = new JFrame("Parent");
if(test condition){
    frame.setAlwaysOnTop(true);
    int choice = JOptionPane.showMessageDialog(frame,
    "blah blah","blahblahblah",JOptionPane.WARNING_MESSAGE);
    if(choice!=null)
    frame.setAlwaysOnTop(true);
}

Upvotes: 1

Arducode
Arducode

Reputation: 15

Try to put setVisible() after dispose(), exchange them.

Upvotes: 0

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