java - 如何检查 JFrame 何时关闭？

Question

如何检查JFrame窗口何时关闭？

MediaPanel mediaPanel=new MediaPanel();
JFrame_of_subtitle frame=new JFrame_of_subtitle(mediaPanel);
JPanel panel=new JPanel();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Answer 1

You will add WindowListener to your frame.

WindowListener has a windowClosing callback function which will be invoked when your frame is being closed.

You can see this tutorial for sample code.