set parent view variable from inner view swiftui - swiftui

Question

I am trying to create a container like view to display loader or draw background.
import SwiftUI
struct BaseView<Content: View> : View {
#State var displayLoader = false
var content: () -> Content
var body: some View {
GeometryReader { geometry in
ZStack {
Image("")
.resizable()
.aspectRatio(geometry.size, contentMode: .fill)
.edgesIgnoringSafeArea(.all)
.background(LinearGradient(gradient: Gradient(colors: [.colorDarkGray, .colorGray]), startPoint: .top, endPoint: .bottom))
LoadingView(isShowing: .constant(self.displayLoader)) {
self.content() // here i want to send parameter to inner view.
}
}
}
}
}
This is one of the inner view that i created
struct LoginOptionsView: View {
var body: some View {
BaseView {
VStack(){
VStack() {
Button(action: {
//HERE I WANT TO DISPLAY LOADER FROM PARENT VIEW like to set displayLoader to true.
}) {
Text("LOG IN").foregroundColor(Color.white)
}
.frame(minWidth: 0, idealWidth: .infinity, maxWidth: 0, minHeight: 50, idealHeight: 50, maxHeight: .none, alignment: .center)
.background(Color.colorPink)
.cornerRadius(25, antialiased: true)
}
}
}
}
I trying bindings, observable object etc but i could not send self.content a parameter which is displayLoader.
Is there a cool and easy way to do it?

Answer 1

If you want to have updated value in your parent view, you should not use constant binding.
// self.$displayLoader gives you the binding you want
LoadingView(isShowing: self.$displayLoader) {
self.content() // here i want to send parameter to inner view.
}
you can now send displayLoader as a binding to your LoginOptionsView and change the value.