英文:
Setting text of button from an action listener
问题
以下是翻译好的内容：
我在我的代码中有一个 JComboBox 和两个 JButton 控件。
String[] s1 = { "NL", "EN" };
c1 = new JComboBox<>(s1);
c1.setBounds(10, 10, 50, 20);
desgin.startFrame.add(c1);
JButton button = desgin.makeButton(desgin.startFrame, 100, 100, 180, 50, json.getLanguage(languageMenu())[3]);
JButton jButton = desgin.makeButton(desgin.startFrame, 100, 180, 180, 50, json.getLanguage(languageMenu())[4]);
按钮上的语言应该在我更改组合框中的语言时立即改变，但我不知道如何做。我尝试过使用异步：
c1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
new SwingWorker<Void, Void>() {
@Override
protected Void doInBackground() throws Exception {
JButton button = desgin.makeButton(desgin.startFrame, 100, 100, 180, 50, json.getLanguage(languageMenu())[3]);
JButton jButton = desgin.makeButton(desgin.startFrame, 100, 180, 180, 50, json.getLanguage(languageMenu())[4]);
return null;
}
@Override
protected void done() {
System.out.println("Done");
}
}.execute();
}
});
但这并没有起作用。我做错了什么？
英文:
So I have a JComboBox and two JButton controls in my code.
<!-- language-: lang: java -->
String[] s1 = { "NL", "EN"};
c1 = new JComboBox<>(s1);
c1.setBounds(10, 10, 50, 20);
desgin.startFrame.add(c1);
JButton button = desgin.makeButton(desgin.startFrame, 100, 100, 180, 50, json.getLanguage(languageMenu())[3]);
JButton jButton = desgin.makeButton(desgin.startFrame, 100, 180, 180, 50, json.getLanguage(languageMenu())[4]);
The language on the buttons should change the moment I change the language in the combo box, but I have no idea how to do that. I have tried using async:
<!-- language-: lang: java -->
c1.addActionListener(new ActionListener()
{
@Override
public void actionPerformed(ActionEvent e) {
new SwingWorker<Void, Void>() {
@Override
protected Void doInBackground() throws Exception {
JButton button = desgin.makeButton(desgin.startFrame, 100, 100, 180, 50, json.getLanguage(languageMenu())[3]);
JButton jButton = desgin.makeButton(desgin.startFrame, 100, 180, 180, 50, json.getLanguage(languageMenu())[4]);
return null;
}
@Override
protected void done() {
System.out.println("Done");
}
}.execute();
}
});
But it didn't work. What am I doing wrong?
答案1
得分: 0
你可以在 actionListener 内部直接使用 JButton 的 setText() 方法，无需每次都创建新的按钮。
英文:
you can just use 'setText()' method of JButton , inside of the actionListener. You should not create new button everytime.
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