Swift在macOS中以编程方式打开新窗口

Question

在Swift中使用macOS：通过在AppDelegate中删除@NSApplicationMain(并创建NSWindowController的子类(，我以编程方式创建主窗口，而不使用情节串连板等：

//@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {
var window: NSWindow!
var viewController: NSViewController!
var windowController: NSWindowController!

func configMainWindow(_ viewController: NSViewController) {
window = NSWindow(contentRect: NSRect(x: 0, y: 0, width: 800, height: 600),
styleMask: [NSWindow.StyleMask.closable, NSWindow.StyleMask.titled, NSWindow.StyleMask.resizable, NSWindow.StyleMask.miniaturizable],
backing: NSWindow.BackingStoreType.buffered,
defer: false)
window.title = "My App"
window.setFrameAutosaveName("My App")
window.center()
window.isOpaque = false
window.isMovableByWindowBackground = true
window.backgroundColor = NSColor.white
window.makeKeyAndOrderFront(nil)
window.contentViewController = viewController
windowController = WindowController(window: window)
}

func applicationDidFinishLaunching(_ aNotification: Notification) {
viewController = ViewController()
configMainWindow(viewController)
}
}

---

windowController附加工具栏、状态栏和菜单栏:(只有菜单栏从NIB加载。MainMenuAction类处理菜单选项。(

class WindowController: NSWindowController, NSWindowDelegate {
var toolbarController = ToolbarController()
var statusBarController = StatusBarController()
var mainMenuAction: MainMenuAction?

override init(window: NSWindow?) {
super.init(window: window)
window?.toolbar = toolbarController.toolbar
window?.delegate = self
var topLevelObjects: NSArray? = []
Bundle.main.loadNibNamed("MainMenu", owner: self, topLevelObjects: &topLevelObjects)
NSApplication.shared.mainMenu = topLevelObjects?.filter { $0 is NSMenu }.first as? NSMenu
self.mainMenuAction = MainMenuAction.shared
}
required init?(coder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}

override func windowDidLoad() {
if let window = window {
if let view = window.contentView {
view.wantsLayer = true
window.titleVisibility = .hidden
window.titlebarAppearsTransparent = true
window.backgroundColor = .white
}
}
}
}

---

此外，我需要添加main.swift文件：(谢谢你提醒我，阿朴迪达(

let delegate = AppDelegate()
NSApplication.shared.delegate = delegate
_ = NSApplicationMain(CommandLine.argc, CommandLine.unsafeArgv)

---

我试过：

let vc = NSViewController()
let win = configWindow(vc, windowWidth: 420, windowHeight: 673)
let wc = NSWindowController(window: win)
wc.window?.present
vc.view.window?.contentViewController = vc

在那里，我从AppDelegate复制了方法configMainWindow，以创建允许我指定大小和vc.的configWindow

---

但是我如何用自定义的大小和样式打开一个新窗口(通过新类中的某个方法-编程(？

请提供一个代码示例。

Answer 1

下面的演示创建了由自定义类中的方法调用的第二个窗口。它可以在Xcode中运行，方法是添加一个"swift.main"文件，并用以下代码替换AppDelegate：

import Cocoa
class Abc : NSObject {
var panel: NSPanel!
func buildWnd2() {
let _panelW : CGFloat = 200
let _panelH : CGFloat = 200
panel = NSPanel(contentRect:NSMakeRect(9300, 1300, _panelW, _panelH), styleMask:[.titled, .closable, .utilityWindow],
backing:.buffered, defer: false)         
panel.isFloatingPanel = true
panel.title = "NSPanel"
panel.orderFront(nil)
}
}
let abc = Abc()
class AppDelegate: NSObject, NSApplicationDelegate {
var window:NSWindow!
@objc func myBtnAction(_ sender:AnyObject ) {
abc.buildWnd2()
}
func buildMenu() {
let mainMenu = NSMenu()
NSApp.mainMenu = mainMenu
// **** App menu **** //
let appMenuItem = NSMenuItem()
mainMenu.addItem(appMenuItem)
let appMenu = NSMenu()
appMenuItem.submenu = appMenu
appMenu.addItem(withTitle: "Quit", action:#selector(NSApplication.terminate), keyEquivalent: "q") 
}

func buildWnd() {

let _wndW : CGFloat = 400
let _wndH : CGFloat = 300
window = NSWindow(contentRect:NSMakeRect(0,0,_wndW,_wndH),styleMask:[.titled, .closable, .miniaturizable, .resizable], backing:.buffered, defer:false)
window.center()
window.title = "Swift Test Window"
window.makeKeyAndOrderFront(window)
// **** Button **** //
let myBtn = NSButton (frame:NSMakeRect( 100, 100, 175, 30 ))
myBtn.bezelStyle = .rounded
myBtn.autoresizingMask = [.maxXMargin,.minYMargin]
myBtn.title = "Build Second Window"
myBtn.action = #selector(self.myBtnAction(_:))
window.contentView!.addSubview (myBtn)
// **** Quit btn **** //
let quitBtn = NSButton (frame:NSMakeRect( _wndW - 50, 10, 40, 40 ))
quitBtn.bezelStyle = .circular
quitBtn.autoresizingMask = [.minXMargin,.maxYMargin]
quitBtn.title = "Q"
quitBtn.action = #selector(NSApplication.terminate)
window.contentView!.addSubview(quitBtn)
}

func applicationDidFinishLaunching(_ notification: Notification) {
buildMenu()
buildWnd()
}
func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
return true
}
}
let appDelegate = AppDelegate()
// **** main.swift **** //
let app = NSApplication.shared
app.delegate = appDelegate
app.setActivationPolicy(.regular)
app.activate(ignoringOtherApps:true)
app.run()