swift – Google AdMob Banner Advert Provides Additional Left Padding in Container View (iOS)

I’m integrating a Google AdMob banner advert right into a UIView container that has the next constraints:

View Hierarchy

Major View (root view of UIViewController).
Container View (inside Major View, used to carry adBannerView).
adBannerView (added programmatically inside Container View).

UIViewController’s Major View
│
├── Container View (UIView)
│ ├── Advert Banner View (GADBannerView or different advert view)

Constraints
Container View:
Left: 0 (Aligns to the left of the primary view)
Proper: 0 (Aligns to the suitable of the primary view)
Backside: 0 (Sticks to the underside of the primary view)
Top: 70 (Fastened peak)

Advert Banner View:
Similar bounds as Container View (matches its body)

• Container View is pinned to the underside of the display screen.
• Advert Banner View is programmatically added inside Container View and set to match its bounds.
• When the advert is loaded, it seems inside Container View with out affecting different UI components.

Right here is my code for including the banner advert:

func showAd(bannerViewContainer: UIView, VC: UIViewController) {
    var bannerView: BannerView!
    bannerView = BannerView(adSize: AdSizeFullBanner)
    bannerView.adUnitID = bannerAdsId
    bannerView.rootViewController = VC
    
    bannerView.load(Request())
    bannerView.body = bannerViewContainer.bounds
    bannerViewContainer.addSubview(bannerView)
}

Nevertheless, when the advert seems on the display screen, I discover that there’s additional area on the left facet of the banner. The banner will not be aligned correctly inside the container view.

What I Have Tried:

• Checked the constraints – The container view has correct constraints (0 on left, proper, and backside).
• Set the banner body explicitly – I attempted manually setting bannerView.body = bannerViewContainer.bounds, however the concern persists.
• Tried totally different advert sizes – Utilizing AdSizeBanner and AdSizeSmartBannerPortrait, however the concern stays.

Questions:

• Why is there additional left padding within the banner advert when it is inside a container with full width?

Picture of output