iAds on 3.5 Iphone not appearing - ios

Question

I have set up iAds for my app, but for whatever reason, they only appear on the iphone 4 inch and not the 3.5 inch. First, I thought it had something to do with the Auto Layout, so I made sure the BannerView appeared in both screen sizes. After doing so, I ran and still would not work.
Here is the code I used to tell the bannerView what to do. This is in the ViewController.m file.
#pragma mark iAd Delegate Methods
-(void)bannerViewDidLoadAd:(ADBannerView *)banner {
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1];
[banner setAlpha:1];
[UIView commitAnimations];
}
-(void)bannerView:(ADBannerView *)banner didFailToReceiveAdWithError:(NSError *)error {
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1];
[banner setAlpha:0];
[UIView commitAnimations];
}
Also, this is being done in Spritekit if that matters.
Thanks for helping, and I'm pretty new to coding so something that may seem obvious, I might have easily not noticed.

Answer 1

You cannot animate the alpha of an object. Alternatively, you should be modifying it's transparency via it's opacity:
- (void)bannerViewDidLoadAd:(ADBannerView *)banner
{
[UIView animateWithDuration:1.0 animations:^{
banner.layer.opacity = 1.0f;
}];
}
- (void)bannerView:(ADBannerView *)banner didFailToReceiveAdWithError:(NSError *)error
{
[UIView animateWithDuration:1.0 animations:^{
banner.layer.opacity = 0.0f;
}];
}