MacOS 开发（一） : AppDelegate

class AppDelegate: NSObject, NSApplicationDelegate {
    
    lazy var window: NSWindow = {
        let window = NSWindow(contentRect: NSMakeRect(0, 0, kScreenWidth*0.5, kScreenHeight*0.5),
                        styleMask: [.titled, .resizable, .miniaturizable, .closable, .fullSizeContentView],
                        backing: .buffered,
                        defer: false)
        // 设置最小尺寸
        window.minSize = window.frame.size
        // 打开显示在屏幕的中心位置
        window.center()

        return window
    }()

    // MARK: -life cycle
    func applicationDidFinishLaunching(_ aNotification: Notification) {
        // Insert code here to initialize your application
        window.makeKeyAndOrderFront(nil)
        NSApplication.shared.mainWindow?.title = "NSButton封装, 仿UIButton"

        // 设置 contentViewController
        let contentViewController = ViewController() // or ViewController(nibName:nil, bundle: nil)
        window.contentViewController = contentViewController
    }

    func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
        return true
    }
    
    func applicationShouldHandleReopen(_ sender: NSApplication, hasVisibleWindows flag: Bool) -> Bool {
        if flag == false {
            window.makeKeyAndOrderFront(self)
            return true
        }
        return false;
    }
    
    func applicationWillTerminate(_ aNotification: Notification) {
        // Insert code here to tear down your application
        
    }

}