向JFrame添加新的WindowListener [英] Adding a new WindowListener to a JFrame
本文介绍了向JFrame添加新的WindowListener的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
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,是否可能因为我只使用windowClosing方法来删除所有其他情况(无用的方法),从而占用更少的空间?
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?
示例
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
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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