They provide an example on using @Observable in minute 5:14 :
@Observable class Account { var userName: String? }
However, if you put that in Xcode this gives an error: @Observable requires property 'userName' to have an initial value (from macro 'Observable')
Anyone else seeing this?
ericagredo
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Hi, I have been trying to use a popover in SwiftUI in Xcode 12 Beta 2&3 and popovers are showing up as sheets. Here is my code: 		@State private var showPopover: Bool = false
		var body: some View {
				VStack {
						Button("Show popover") {
								self.showPopover = true
						}.popover(
								isPresented: self.$showPopover,
								arrowEdge: .bottom
						) { Text("Popover") }
				}
		}
}
However, no popover is presented. Instead it's a sheet. I submitted feedback, but I don't see anyone else complaining about it. I want to confirm I'm not the only one.
I'm having some issues with SwiftUI's SignInWithAppleButton's signInWithAppleButtonStyle. I am trying to change the color of the button based on the user's current scheme or if it changes. This is iOS 14 and SwiftUI:
@Environment(\.colorScheme) var currentScheme
@State var appleButtonWhite = false
VStack{
SignInWithAppleButton(
								.signUp,
								onRequest: { request in							
										request.requestedScopes = [.fullName, .email]
								},
								onCompletion: { result in
										switch result {
										case .success (let authResults):
												print("Authorization successful.")
			
										case .failure (let error):
												print("Authorization failed: " + error.localizedDescription)
										}
								}
						)
						.frame(minWidth: 0, maxWidth: .infinity)
						.signInWithAppleButtonStyle(appleButtonWhite ? .white : .black)
}
.onChange(of: currentScheme, perform: { (scheme) in
				if scheme == .light
				{
						appleButtonWhite = false
				}
				else
				{
						appleButtonWhite = true
				}
		})
When appleButtonWhite changes values, it renders the view as it should since the state is changing. When I debug the button it has the correct appleButtonWhite value, but for some reason the style just never changes. I have no idea why. I have done many style changes in my code with regular buttons and it works correctly based on different states. Any ideas why Apple's doesn't change?