How do I access a @State variable from a function that's inside a class that is inside the struct. The pseudocode looks like:
struct StructName: UIViewRepresentable {
@State var variableName = value
class className: NSObject {
func functionName(parameters) {
//How do I access variableName from here?
}
}
}
Use @Binding, and pass it as an argument on init:
struct StructName: UIViewRepresentable {
@Binding var variableName: Bool
func makeUIView(context: Context) -> UIView {
return UIView()
}
func updateUIView(_ uiView: UIView, context: Context) {
}
func makeCoordinator() -> Coordinator {
Coordinator(variableName: self.$variableName)
}
class Coordinator: NSObject {
@Binding var variableName: Bool
init(variableName: Binding<Bool>) {
_variableName = variableName
}
func functionName() {
//access variableName here
}
}
}
@Bindingvariable or an @State. If you choose the second option you must prepend a $ on MapView instantiation. `MapView(variableName: $contentViewStateVar). developer.apple.com/documentation/swiftui/bindingHere is possible approach. Concrete types are used for demo purpose.
struct StructName: UIViewRepresentable {
@State var variableName: Bool = false
class ClassName: NSObject {
let boundVariable: Binding<Bool>
init(variableName: Binding<Bool>) {
self.boundVariable = variableName
}
func functionName(parameters: [String]) {
boundVariable.wrappedValue = true
}
}
// somewhere in place of ClassName instantiation below use
// ClassName(boundVariable: $variableName)
}
