Flurry Native Ad integration callbacks

FlurryNativeAdCallbacks.swift

class ViewController: UIViewController, FlurryAdNativeDelegate {
  
  // For instance, the two most frequently used callbacks are:
  func adNativeDidFetchAd(nativeAd: FlurryAdNative!){
    // The SDK returns this callback for every instance of the native ad fetched
    // The FlurryAd object contains all of the ad assets
  }
  
  // Informational callback invoked when there is an ad error
  func adNative(nativeAd: FlurryAdNative!, adError: FlurryAdError, errorDescription: NSError!){
    // The SFK returns this callback for every failed attempt to fetch a native ad
    // The nativeAd object contains no assets
    // The error provides further info on why the request failed
  }
  
}