Get the application closing event
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30-04-2021 - |
سؤال
How to get to the application closing event?
I want to get application to save all unsaved operations or show the user a message "Are you sure about closing without saving all data?" something like this.
If this will be helpful - the application is a SingleFrameAplication
using Swing.
المحلول
You could use a shutdown hook. It works for Swing, AWT and even console applications.
Example:
Runtime.getRuntime().addShutdownHook(new Thread()
{
@Override
public void run()
{
//do your stuff
}
});
نصائح أخرى
You have to add WindowListener to your JFrame / JDialog
, about closing event is there method public void windowClosing(WindowEvent e) {
code example here
You can use sun.misc.Signal
or Runtime.getRuntime().addShutdownHook
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