java set delay to change imageicon

Question

i'm trying to set a delay when a button is pressed to set an imageicon to a certain image then set another delay so that another image would be set, all of this by single click. in other word :

click a button->set image->delay->set another image.

what i get in my code is the last state only "set another image".

also i don't want to use use timers, i want to use delays.

and here the part in my code i'm concerned about.

btnNewButton.addMouseListener(new MouseAdapter() {
    @Override
    public void mouseClicked(MouseEvent e) {
    lblNewLabel.setIcon(and);   
sleeep(500);
        lblNewLabel.setIcon(app);
    }
});

and here is the delay function

 void sleeep(int n)
{
    try {
        Thread.sleep(n);
    } catch(InterruptedException ex) {
        Thread.currentThread().interrupt();
    }
}

duplicated: http://stackoverflow.com/questions/10051638/updating-an-image-contained-in-a-jlabel-problems — tokhi, Nov 13 '13 at 13:20

score 1 · Answer 1 · answered Nov 13 '13 at 13:21

1

don't add MouseListener to JButton, nor for mouseClicked(), add ActionListener instead, btw all Mouse and Key events are implemented in JButton API and correctly
don't to use Thread.sleep(n); you have an issue with Concurency in Swing, use Swing Timer instead,

answered Nov 13 '13 at 13:21

mKorbel

109,525
20
134
319

adding action listener gave the same result plus i mentioned i didn't want to use timers. – Youssef Fotouh Nov 13 '13 at 14:40
then result never will be stable – mKorbel Nov 13 '13 at 14:42
i intend to freeze the whole program while the images are changed, that's why i don't want to use timers....i know i can set objects unclickable while the timer is working but using a delay would be much easier. – Youssef Fotouh Nov 13 '13 at 14:49

score 0 · Answer 2 · answered Nov 13 '13 at 12:36

0

You should try executing the code that sets the image in the event dispatch thread using InvokeLater.

SwingUtilities.invokeLater(new Runnable() {
    public void run() {
        lblNewLabel.setIcon(and);
    }
});

sleeep();

SwingUtilities.invokeLater(new Runnable() {
    public void run() {
        lblNewLabel.setIcon(and);
    }
});

answered Nov 13 '13 at 12:36

Luke

409
3
12

1

It won't work reliably, as long as you don't do the `sleep` on another thread, and *then* schedule the `invokeLater` to set the last icon. – Harald K Nov 13 '13 at 13:21

java set delay to change imageicon

2 Answers2

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