I know this is an old question but this helped me:
Go to: Product -> Clean Build Folder
Then hit ⌘B to build the project and the icon should appear. 👍
LeonardoXUI
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Tested on Xcode 13 beta, SwiftUI 3.0
After having being in this situation, I Frankensteined some answers that where all over the internet and this works for me:
On the @main (MyAppApp) file add the amount of WindowGroup("Window Name") you need:
import SwiftUI
@main
struct MyAppApp: App {
var body: some Scene {
WindowGroup {
ContentView()
}
WindowGroup("Second Window") {
SecondWindow()
}.handlesExternalEvents(matching: Set(arrayLiteral: "SecondWindow"))
WindowGroup("Third Window") {
ThirdWindow()
}.handlesExternalEvents(matching: Set(arrayLiteral: "ThirdWindow"))
}
What to place in every WindowGroup?:
WindowGroup("SecondWindow") /*Any name you want to be displayed at the top of the window.*/ {
SecondWindow() //View you want to display.
}.handlesExternalEvents(matching: Set(arrayLiteral: "SecondWindow")) //Name of the view without ().
Now, at the end of the MyAppApp file (outside of the struct MyAppApp: App) add the following enum :
enum OpenWindows: String, CaseIterable {
case SecondView = "SecondView"
case ThirdView = "ThirdView"
//As many views as you need.
func open(){
if let url = URL(string: "myapp://\(self.rawValue)") { //replace myapp with your app's name
NSWorkspace.shared.open(url)
}
}
}
Add the following to your Info.plist
Replace myapp with your app's name.
Usage:
Button(action: {
OpenWindows.SecondView.open()
}){
Text("Open Second Window")
}