'Bool' is not convertible to 'Binding<Bool>' in SwiftUI - swiftui

Question

I have a SwiftUI native Watch app I Am working on. I have a Combine based class that allows me to store `\userDefaults, one of which is a simple toggle.
import SwiftUI
import Foundation
import Combine
class MeetingSetup: BindableObject {
let willChange = PassthroughSubject<Void, Never>()
var twitterEnabled: Bool = false {
didSet {
willChange.send()
}
}
init() {
let prefs:UserDefaults = UserDefaults(suiteName: "group.com.appname")!
twitterEnabled = prefs.bool(forKey: "keyTwitterEnabledBool")
}
}
In the SwiftUI I am getting the error messages that Bool is not convertible to Binding<Bool>
import SwiftUI
import Combine
struct SetupView : View {
#ObjectBinding var meetingSetup: MeetingSetup = delegate.meetingSetup
var body: some View {
HStack{
Toggle(isOn: self.meetingSetup.twitterEnabled){ // <== 'Bool' in not convertible to 'Binding<Bool>'
Text("Twitter")
}
}
}
I don't understand why this is getting the message since the code is #ObjectBinding, should it not be Binding<Bool> by definition? If not how do I address this correctly??

Answer 1

You missed the dollar sign:
Toggle(isOn: self.$meetingSetup.twitterEnabled) { ... }
I also noticed that you are using didSetin your #BindableObject, but you should really be using willSet.
And finally, maybe you pasted incompletely, but you are missing a closing bracket in your view.
If you don't know what the dollar sign is for, check the WWDC2019 video Data Flow in SwiftUI.