我正在尝试按照本教程创建一个仅出现在 MacOS Big Sur 菜单栏(右上角)中的应用程序:https ://medium.com/@acwrightdesign/creating-a-macos-menu-bar-application -使用-swiftui-54572a5d5f87/。它在 Xcode 11 和 MacOS Catalina 上工作,因为有一个 AppDelegate.swift 文件,但我听说它被这个方法取代了:
@main
struct MyApp: App {
var body: some Scene {
WindowGroup {
ContentView()
}
}
}
但是,本教程的前几个步骤要求我对(现在不存在的)AppDelegate.swift 文件进行一些更改。我已经尝试在 MyApp.swift 中进行这些更改,但我似乎无法让它工作。有人愿意帮我改编 MacOS Big Sur/Xcode 12 的教程吗?
注意:这里是 AppDelegate.swift 文件的外观(如果它存在的话)根据教程(如果你不想打开教程):
import Cocoa
import SwiftUI
@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {
var popover: NSPopover!
var statusBarItem: NSStatusItem!
func applicationDidFinishLaunching(_ aNotification: Notification) {
// Create the SwiftUI view that provides the window contents.
let contentView = ContentView()
// Create the popover
let popover = NSPopover()
popover.contentSize = NSSize(width: 400, height: 500)
popover.behavior = .transient
popover.contentViewController = NSHostingController(rootView: contentView)
self.popover = popover
// Create the status item
self.statusBarItem = NSStatusBar.system.statusItem(withLength: CGFloat(NSStatusItem.variableLength))
if let button = self.statusBarItem.button {
button.image = NSImage(named: "Icon")
button.action = #selector(togglePopover(_:))
}
}
@objc func togglePopover(_ sender: AnyObject?) {
if let button = self.statusBarItem.button {
if self.popover.isShown {
self.popover.performClose(sender)
} else {
self.popover.show(relativeTo: button.bounds, of: button, preferredEdge: NSRectEdge.minY)
}
}
}
}