Like Huygamer said, you're creating a new instance of a view controller so when you call your method [controller hidesBanner];
you're referring to another object.
The best approach here is to use NSNotificationCenter
: https://developer.apple.com/library/mac/documentation/Cocoa/Reference/Foundation/Classes/nsnotificationcenter_Class/Reference/Reference.html
And send a message to your viewcontroller whenever you want to hide or show your ad:
ViewController.m
- (void)viewDidLoad
{
[super viewDidLoad];
//Add view controller as observer
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleNotification:) name:@"hideAd" object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleNotification:) name:@"showAd" object:nil];
// Configure the view.
SKView * skView = (SKView *)self.view;
skView.showsFPS = NO;
skView.showsNodeCount = NO;
// Create and configure the scene.
SKScene * scene = [MyScene sceneWithSize:skView.bounds.size];
scene.scaleMode = SKSceneScaleModeAspectFill;
// Present the scene.
[skView presentScene:scene];
self.canDisplayBannerAds = YES;
adView = [[ADBannerView alloc] initWithFrame:CGRectZero];
adView.frame = CGRectOffset(adView.frame, 0, 0.0f);
adView.delegate=self;
[self.view addSubview:adView];
self.bannerIsVisible=NO;
}
//Handle Notification
- (void)handleNotification:(NSNotification *)notification
{
if ([notification.name isEqualToString:@"hideAd"]) {
[self hidesBanner];
}else if ([notification.name isEqualToString:@"showAd"]) {
[self showBanner];
}
}
And in your scene:
[[NSNotificationCenter defaultCenter] postNotificationName:@"showAd" object:nil]; //Sends message to viewcontroller to show ad.
[[NSNotificationCenter defaultCenter] postNotificationName:@"hideAd" object:nil]; //Sends message to viewcontroller to hide ad.