如何设置特定时间的jbutton图标以使其在单击时显示，以及如何在时间结束后消失该图标 [英] how to set jbutton icon for specific time to show when it is clicked and how to disappear the icon when time finished

问题描述

当我单击时，如何将Java设置计时器代码设置为我的按钮，以设置按钮图标，以及在我的按钮图标必须显示然后该图标必须设置为空的情况下，处理过程会有一定的延时.

how to code java for set timer to my button for set button icon when i clicked and some time delay for process while my button icon has to show then the icon have to set null for time end.

我尝试过以下方法，但是当我不单击按钮时它是可行的

i have tried following way but it is work when i am not to clicked the button

private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {                                         


  timer = new Timer(5000, new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent e) {
                if(chromeShown) {
                    jButton3.setIcon(new javax.swing.ImageIcon(getClass().getResource("/images/r/ajaxloading.gif")));
                    chromeShown = true;
                } else {
                    jButton3.setIcon(null);
                    chromeShown = false;
                }
            }
        });
        timer.start();

        this.getContentPane().add(JButton);
        this.setVisible(true);

推荐答案

根据我对问题的理解，您的逻辑有些偏斜，应该按照类似的步骤进行操作

Based on my understanding of your problem, your logic is a little skewed, the actions should following along something like

单击按钮->图标已更改->计时器已启动...(正在等待)...->计时器已触发->图标已更改.

Button Clicked -> Icon Changed -> Timer Started ...(waiting)... -> Timer triggered -> Icon Changed.

此刻，您正在尝试更改Timer中图标的初始状态，这没有任何意义.我想您想做更多类似的事情...

At the moment, you're trying to change the initial state of the icon in the Timer, which doesn't make sense. I think you want to do something more like this...

click.addActionListener(new ActionListener() {
    @Override
    public void actionPerformed(ActionEvent e) {
        click.setEnabled(false);
        click.setText("I'm running >>");
        Timer timer = new Timer(1000, new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                click.setText("I be done");
                click.setEnabled(true);
            }
        });
        timer.start();
    }
});

基本上，当单击按钮时，这将设置按钮的文本并禁用按钮(因此您不能再次单击它)，然后在1秒钟后，它将更改文本并启用按钮

Basically, when the button is clicked, this sets the button's text and disables the button (so you can't click it again) and the after 1 second, it changes the text and enables the button

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