[iOS][AdManager][Banner] An ad is not rendered properly

[yoalex5]

Issue #175

API:

func findPrebidCreativeSize(_ adView: UIView, completion: @escaping (CGSize?) -> Void)

Example:

func adViewDidReceiveAd(_ bannerView: GADBannerView) {
    print("adViewDidReceiveAd")
        
    Utils.shared.findPrebidCreativeSize(bannerView) { (size) in
        if let bannerView = bannerView as? DFPBannerView, let size = size {
            bannerView.resize(GADAdSizeFromCGSize(size))
        }
     }
}

[ppuviarasu]

This needs to be documented here http://prebid.org/prebid-mobile/pbm-api/ios/pbm-bannerad-ios.html to include adManager and the implementation logics like these to address specific mediation partner issues

[can-soykarafakili]

The fix seems to be fine. 👍 I agree with @ppuviarasu 's comment as well.

[yoalex5]

The latest update to PR has the next logic:

1. When AdManager SDK retrieves a creative (adViewDidReceiveAd event) a client app calls Utility method findPrebidCreativeSize that is looking for hb_size key/value in the creative js code.
2. findPrebidCreativeSize calls Completion Handler that contains CGSize parameter with a value if the hb_size key/value has been found and nil in other cases

Please note that it is Utility function that is supposed to call it from the client code when it is necessary

[ppuviarasu]

This API only works for iOS 10 & above and not for iOS 9. Since we are downgrading to iOS 9, can you fix this?

[yoalex5]

Yes, I will upgrade the PR.

[yoalex5]

@ppuviarasu, I have updated the PR.
On Tuesday I am going to make full testing using different AdManagerSDK versions

[yoalex5]

@ppuviarasu, I have finished sanity checks and it seems that it is workable fix. Could you please review this PR?

[bretg]

docs PR prebid/prebid.github.io#1352