我试图知道窗口何时关闭,我实现了这段代码：
class ViewController: NSViewController,NSWindowDelegate {
override func viewDidLoad() {
super.viewDidLoad()
let window: NSWindow? = view.window
window?.delegate = self
}
func windowWillClose(_ aNotification: Notification) {
print("windowWillClose")
}
}
不幸的是没有任何事情发生,我能犯错什么？
文件：https://developer.apple.com/documentation/appkit/nswindow/1419400-willclosenotification
PS
我已经在没有找到解决方案的情况下阅读了这个问题：Handle close event of the window in Swift
