// Use this for initialization
 void Awake()
 {
     starttime = System.DateTime.Now.Ticks / System.TimeSpan.TicksPerMillisecond;
     AdManagerUnity.Startup(this.appId);
     instance                 = new ImageTextureAdInstanceUnity(gameObject, Camera.main, this.adUnitId, this.adInstanceId);
     instance.OnAdLoaded     += HandleOnAdLoaded;
     instance.OnAdLoadFailed += HandleOnAdLoadFailed;
     AdManagerUnity.RegisterImageTextureAdUnit(instance, nDistinctAds);
 }
 void OnApplicationQuit()
 {
     AdManagerUnity.Shutdown();
 }