将新的 WindowListener 添加到 JFrame
mainFrame.addWindowListener(new WindowListener() {
@Override
public void windowClosing(WindowEvent e) {
if (JOptionPane.showConfirmDialog(mainFrame, "Are you sure you want to quit?", "Confirm exit.", JOptionPane.OK_OPTION, 0, new ImageIcon("")) != 0) {
return;
}
System.exit(-1);
}
@Override
public void windowOpened(WindowEvent e) {}
@Override
public void windowClosed(WindowEvent e) {}
@Override
public void windowIconified(WindowEvent e) {}
@Override
public void windowDeiconified(WindowEvent e) {}
@Override
public void windowActivated(WindowEvent e) {}
@Override
public void windowDeactivated(WindowEvent e) {}
});
有我的代码,是否有可能,因为我只使用 windowClosing 方法来删除所有其他的,无用的方法,所以它占用的空间更少?
There is my code, is it possible since I only use the windowClosing method to remove all the other in my case, useless methods so it takes less space?
例子
mainFrame.addWindowListener(new WindowListener() {
@Override
public void windowClosing(WindowEvent e) {
if (JOptionPane.showConfirmDialog(mainFrame, "Are you sure you want to quit?", "Confirm exit.", JOptionPane.OK_OPTION, 0, new ImageIcon("")) != 0) {
return;
}
System.exit(-1);
}
});
有可能吗?
推荐答案
WindowListener
有一个默认实现,叫做 WindowAdapter
允许您覆盖您真正想要使用的方法
There is a default implementation of WindowListener
called WindowAdapter
which allows you to override the methods you really want to use
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