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[Native Ad] Ad is misplaced at the top of the screen on iOS

See original GitHub issue

Plugin Version

google_mobile_ads: 0.12.1+1

Environment

Platform: iOS Flutter version: 2.0.5 SDK version: “>=2.12.0 ❤️.0.0”

Error description

The native ad widget is used in a SingleChildScrollView widget which scrolls horizontally. The native ad is loaded and displayed as aspected in the view but there is also an additional (unintentionally) ad that is placed at the top of the screen (see screenshot).

The app was recently migrated to null safety. This weird behavior occurred since the migration to null safety and update to Flutter 2.0. Before the migration the ad wasn’t placed at the top.

My code

class NativeAdWidget extends StatefulWidget {
  static const String ADVERTISER_VIEW = "advertiser";
  static const String BODY_VIEW = "body";
  static const String ICON_VIEW = "icon";
  static const String CTA_VIEW = "cta";
  final Size? size;
  final EdgeInsets? margin;
  final List<String> visibleViews;

  NativeAdWidget({this.size, this.margin, this.visibleViews = const []});

  @override
  _NativeAdWidgetState createState() => _NativeAdWidgetState();
}

class _NativeAdWidgetState extends State<NativeAdWidget> {
  final String nativeAdFactory = "nativeAdFactory";
  final String nativeAdUnitId = Platform.isAndroid
      ? "ca-app-pub-***"
      : "ca-app-pub-***;
  NativeAd? _nativeAd;
  BehaviorSubject<bool> _adVisibilitySubject = BehaviorSubject.seeded(false);

  @override
  void didChangeDependencies() {
    super.didChangeDependencies();
    if (_nativeAd == null) {
      if (AppConfig.googleAdsEnabled) {
        Alerts.showiOSTrackingPermissionDialog(context).then((value) {
          _nativeAd = _createNativeAd();
          _nativeAd!.load();
        });
      }
    }
  }

  @override
  void dispose() {
    _adVisibilitySubject.close();
    if (AppConfig.googleAdsEnabled) _nativeAd?.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return StreamBuilder<bool>(
        stream: _adVisibilitySubject,
        initialData: _adVisibilitySubject.value,
        builder: (ctx, snapshot) {
          if (AppConfig.googleAdsEnabled && snapshot.data!) {
            return Container(
                margin: widget.margin,
                width: widget.size?.width,
                height: widget.size?.height,
                child: AdWidget(ad: _nativeAd!));
          } else {
            return Container();
          }
        });
  }

  NativeAd _createNativeAd() {
    return NativeAd(
        adUnitId: nativeAdUnitId,
        factoryId: nativeAdFactory,
        listener: _createAdListener(),
        request: AdRequest(nonPersonalizedAds: false),
        customOptions: {
          "theme": DeviceConfig.appTheme.toString().split(".")[1],
          "visibleViews": widget.visibleViews
        });
  }

  AdListener _createAdListener() {
    return AdListener(
        onAdLoaded: (ad) => _adVisibilitySubject.add(true),
        onAdFailedToLoad: (ad, error) {
          _nativeAd?.dispose();
          _nativeAd = null;
        });
  }
}

Screenshot

screenshot

Logs

WF: _WebFilterIsActive returning: NO
WF: _userSettingsForUser mobile: {
    filterBlacklist =     (
    );
    filterWhitelist =     (
    );
    restrictWeb = 1;
    useContentFilter = 0;
    useContentFilterOverrides = 0;
    whitelistEnabled = 0;
}
WF: _WebFilterIsActive returning: NO
[assertion] Error acquiring assertion: <Error Domain=RBSAssertionErrorDomain Code=3 "Target is not running or required target entitlement is missing" UserInfo={RBSAssertionAttribute=<RBSDomainAttribute| domain:"com.apple.webkit" name:"Background" sourceEnvironment:"(null)">, NSLocalizedFailureReason=Target is not running or required target entitlement is missing}>
[ProcessSuspension] 0x1189ba2c0 - ProcessAssertion: Failed to acquire RBS Background assertion 'WebProcess Background Assertion' for process with PID 829, error: Error Domain=RBSAssertionErrorDomain Code=3 "Target is not running or required target entitlement is missing" UserInfo={RBSAssertionAttribute=<RBSDomainAttribute| domain:"com.apple.webkit" name:"Background" sourceEnvironment:"(null)">, NSLocalizedFailureReason=Target is not running or required target entitlement is missing}