Xcode Question posted in
Whether you're new to Xcode or an experienced developer, our archive has everything you need to know about this integrated development environment (IDE). From basic functionalities to advanced features, our archive covers a wide range of Xcode-related questions and answers. Browse our archive now and find solutions to your Xcode questions, and take your app development skills to the next level

Implementing AdMob Interstitial Ads in SwiftUI (5) and Xcode (12.4)

I am working on implementing Interstitial ads in my app and running into some confusion with the docs provided by Admob and the new SwiftUI app structure.

Here is the app.swift file, showing that I’ve implemented the GoogleMobileAds and started it in the didFinishLaunchingWithOptions method.

import SwiftUI
import GoogleMobileAds

@main
struct adamsCalcApp: App {
    var calculator = Calculator()
    
    @UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
    
    var body: some Scene {
        WindowGroup {
            ContentView().environmentObject(calculator)
        }
    }
}

class AppDelegate: NSObject, UIApplicationDelegate {
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {
        // Setup google admob instance
        GADMobileAds.sharedInstance().start(completionHandler: nil)
        return true
    }

}

In my ContentView.swift File, I have the interstitial variable created like…

 @State var interstitial: GADInterstitialAd?

Then on the main stack in the view, I call onAppear(perform: ) to load the ad, however I keep getting this error.

.onAppear(perform: {
            let request = GADRequest()
                    GADInterstitialAd.load(withAdUnitID:"ca-app-pub-3940256099942544/4411468910",
                                                request: request,
                                      completionHandler: { [self] ad, error in
                                        if let error = error {
                                          return
                                        }
                                        interstitial = ad
                                        interstitial?.fullScreenContentDelegate = self
                                      }
                    )

        })

"Cannot assign value of type ‘ContentView’ to type
‘GADFullScreenContentDelegate?’"

I am feeling a bit clueless after trying a few different workarounds and trying to look up a setup that is like mine, AdMob docs still show how to implement with class ViewControllers and I would like to figure out how to do this is SwiftUI.

Tags:

2

Answers


  1. Chosen as BEST ANSWER
    0

    In order to use the Admob docs with the newest SwiftUI release, you need to change this line...

            .onAppear(perform: {
                    let request = GADRequest()
                            GADInterstitialAd.load(withAdUnitID:"ca-app-pub-3940256099942544/4411468910",
                                                        request: request,
                                              completionHandler: { [self] ad, error in
                                                if let error = error {
                                                  return
                                                }
                                     // Change these two lines of code
                                     interstitial = ad
                                                
                                     interstitial?.fullScreenContentDelegate = self
                                     // To...
                                     interstitial = ad
                                     let root = UIApplication.shared.windows.first?.rootViewController                                        
                      self.interstitial!.present(fromRootViewController: root!)
                                              }
                            )
        
                })

  2. 0 
    import SwiftUI
import GoogleMobileAds
import AppTrackingTransparency
import AdSupport

class AdsManager: NSObject, ObservableObject {
    
    private struct AdMobConstant {
        static let interstitial1ID = "..."
    }
    
    final class Interstitial: NSObject, GADFullScreenContentDelegate, ObservableObject {

        private var interstitial: GADInterstitialAd?
        
        override init() {
            super.init()
            requestInterstitialAds()
        }

        func requestInterstitialAds() {
            let request = GADRequest()
            request.scene = UIApplication.shared.connectedScenes.first as? UIWindowScene
            ATTrackingManager.requestTrackingAuthorization(completionHandler: { status in
                GADInterstitialAd.load(withAdUnitID: AdMobConstant.interstitial1ID, request: request, completionHandler: { [self] ad, error in
                    if let error = error {
                        print("Failed to load interstitial ad with error: (error.localizedDescription)")
                        return
                    }
                    interstitial = ad
                    interstitial?.fullScreenContentDelegate = self
                })
            })
        }
        func showAd() {
            let root = UIApplication.shared.windows.last?.rootViewController
            if let fullScreenAds = interstitial {
                fullScreenAds.present(fromRootViewController: root!)
            } else {
                print("not ready")
            }
        }
        
    }
    
    
}


class AdsViewModel: ObservableObject {
    static let shared = AdsViewModel()
    @Published var interstitial = AdsManager.Interstitial()
    @Published var showInterstitial = false {
        didSet {
            if showInterstitial {
                interstitial.showAd()
                showInterstitial = false
            } else {
                interstitial.requestInterstitialAds()
            }
        }
    }
}

@main
struct YourApp: App {
    let adsVM = AdsViewModel.shared
    init() {
        GADMobileAds.sharedInstance().start(completionHandler: nil)
    }

    var body: some Scene {
        WindowGroup {
            ContentView()
                .environmentObject(adsVM)
    }
}

    Toggle the showInterstitial parameter in the AdsViewModel anywhere in the application and the advertisement will be shown.

    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search