Admob BannerView in SwiftUI - swiftui

Question

I am attempting to wrap the GADBannerView with a UIViewControllerRepresentable so that I can use it in my SwiftUI views but I encountered a situation where the background layer of the viewController covers the main list view. This resulted in a situation where the list is not scrollable.
I would like the bannerView to be anchored to the bottom of the view, but just above the tabView.
Code:
struct LaunchView: View {
var body: some View {
TabView {
HomeView()
.tabItem {
Label {
Text("Home")
} icon: {
Image(systemName: "gear")
}
}
}
}
}
struct HomeView: View {
var body: some View {
NavigationView {
ZStack {
List {
ForEach(0..<20, id: \.self) { _ in
Text("Hello, World!")
}
}
VStack {
Spacer()
JRBannerView()
}
}
.navigationTitle(Text("Home"))
}
}
}
class JRBannerViewController: UIViewController {
lazy var bannerView: GADBannerView = {
let v = GADBannerView()
v.translatesAutoresizingMaskIntoConstraints = false
v.adUnitID = TEST_AD_ID
v.rootViewController = self
return v
}()
override func viewDidLoad() {
super.viewDidLoad()
setupViews()
loadBannerAd()
}
func setupViews() {
view.backgroundColor = UIColor(red: 1, green: 0, blue: 0, alpha: 0.5) //<== obscures the main list view behind
view.addSubview(bannerView)
bannerView.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor).isActive = true
bannerView.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
}
func loadBannerAd() {
let viewWidth = view.frame.inset(by: view.safeAreaInsets).size.width
bannerView.adSize = GADCurrentOrientationAnchoredAdaptiveBannerAdSizeWithWidth(viewWidth)
bannerView.load(GADRequest())
}
}
struct JRBannerView: UIViewControllerRepresentable {
func makeUIViewController(context: Context) -> JRBannerViewController {
return JRBannerViewController()
}
func updateUIViewController(_ uiViewController: UIViewControllerType, context: Context) {
}
}
Results:
How do I compact the background view of the viewController to the same height of the bannerView so that the list is scrollable?