Admob rewarded ad won't load - swift

Question

I have build a SwiftUI .sheet() that appears so the user can see their statistics and can click on a button that then will show a rewarded video to give the user some extra points. The code is as follows:
import SwiftUI
import GoogleMobileAds
struct Scoresheet: View {
#State private var rewardedadd = ViewController()
var body: some View {
VStack {
// all sorts of content.
// if a user clicks on a specific button it will call func loadadd()
}
.onAppear {
rewardedadd.loadRewardedAd()
}
}
func loadadd() {
rewardedadd.show()
}
}
In another file I have the following:
import UIKit
import GoogleMobileAds
class ViewController: UIViewController, GADFullScreenContentDelegate {
var rewardedAd: GADRewardedAd?
func loadRewardedAd() {
let request = GADRequest()
GADRewardedAd.load(withAdUnitID:"ca-app-pub-3940256099942544/1712485313",
request: request,
completionHandler: { [self] ad, error in
if let error = error {
print("Failed to load rewarded ad with error: \(error.localizedDescription)")
return
}
rewardedAd = ad
print("Rewarded ad loaded.")
rewardedAd?.fullScreenContentDelegate = self
})
}
func show() {
if let ad = rewardedAd {
ad.present(fromRootViewController: self) {
let reward = ad.adReward
print("Reward received with currency \(reward.amount), amount \(reward.amount.doubleValue)")
// TODO: Reward the user.
}
} else {
print("Ad wasn't ready")
}
}
func ad(_ ad: GADFullScreenPresentingAd, didFailToPresentFullScreenContentWithError error: Error) {
print("Ad did fail to present full screen content. Error: \(error.localizedDescription)")
}
func adWillPresentFullScreenContent(_ ad: GADFullScreenPresentingAd) {
print("Ad will present full screen content.")
}
func adDidDismissFullScreenContent(_ ad: GADFullScreenPresentingAd) {
print("Ad did dismiss full screen content.")
}
}
I keep getting the following error:
Ad did fail to present full screen content. Error: The provided view controller is not being presented.
That is the error from func ad in class ViewController. Does anyone know what I can do to fix this issue?
---- edit ----
I have rebuild my viewcontroller class to the following:
import SwiftUI
import GoogleMobileAds
struct RewardedAd: UIViewRepresentable {
#State private var rewardedAd: GADRewardedAd
let adUnitId = "ca-app-pub-3940256099942544/1712485313"
func makeCoordinator() -> CoordinatorVideoAd {
return CoordinatorVideoAd()
}
func makeUIView(context: Context) -> GADRewardedAd {
let request = GADRequest()
rewardedAd.load(withAdUnitID: adUnitId,
request: request, completionHandler: { [self] ad, error in
if let error = error {
print("Failed to load rewarded ad with error: \(error.localizedDescription)")
return
}
rewardedAd = ad
print("Rewarded ad loaded.")
rewardedAd?.fullScreenContentDelegate = self
})
return rewardedAd
}
func updateUIView(_ uiView: GADRewardedAd, context: Context) { }
class CoordinatorVideoAd: NSObject, GADFullScreenContentDelegate {
func ad(_ ad: GADFullScreenPresentingAd, didFailToPresentFullScreenContentWithError error: Error) {
print("Ad did fail to present full screen content.")
}
func adWillPresentFullScreenContent(_ ad: GADFullScreenPresentingAd) {
print("Ad will present full screen content.")
}
func adDidDismissFullScreenContent(_ ad: GADFullScreenPresentingAd) {
print("Ad did dismiss full screen content.")
}
}
}
I new have two error's:
Type 'RewardedAd' does not conform to protocol 'UIViewRepresentable'
Static member 'load' cannot be used on instance of type 'GADRewardedAd'
How can I fix this?

Answer 1

I believe that's now how you present a UIKit component to a swiftUI. You should read it in the apple docs about how to do it.
Here's an example how to do it :
First, create a struct that inherit the UIViewControllerRepresentable protocol
it'll look like this
struct SomethingViewController: UIViewControllerRepresentable {
typealias UIViewControllerType = [enter your UIViewController type]
}
add the type, for example, here i;m creating a FakeViewController
typealias UIViewControllerType = FakeViewController
it'll generate the nescessary method
Last, just customize it whahtever you want
struct SomethingViewController: UIViewControllerRepresentable {
#Binding var colorIDX: Int
let colors: [UIColor] = [.red,.blue,.green]
func makeUIViewController(context: Context) -> FakeViewController {
//Construct your ViewController
let viewController = FakeViewController()
viewController.bgColor = .systemPink
return viewController
}
func updateUIViewController(_ uiViewController: FakeViewController, context: Context) {
// Update your ViewController
uiViewController.view.backgroundColor = colors[colorIDX]
}
}
and setup in the SwiftUIView to look like this (depending on how do you want it, navigate to UIViewController or present it)
struct ContentView: View {
#State var isShow: Bool = false
#State var colorIDX: Int = 0
var body: some View {
VStack {
Button("show") {
if colorIDX >= 2 {
colorIDX = 0
} else {
colorIDX += 1
}
isShow.toggle()
}
}.sheet(isPresented: $isShow) {
} content: {
SomethingViewController(colorIDX: $colorIDX)
}
}
}
you see, every time i update something in the swiftUI View, it updates my ViewController and everytime I push the button, it'll present the ViewController
if you want to use a navigationController, just use it like any other swiftUI component/views
And that;s how you use a UIViewController in SwiftUI