BOOL declared Globally but certain functions can't see it - ios

Question

Ok, I am going crazy here. I am using Xcode 6.4 and I also tried new 7 beta 3.
What happens is that anything (for example BOOL) that i declare as a global variable can't be seen by certain methods/functions.
-(void)loadView can see it no problem but
-(void)bannerView:(ADBannerView *)banner didFailToReceiveAdWithError:(NSError *)error and some others can't.
I know that globals are dangerous but please let me know what I am doing wrong. Thanks!
my h file:
#interface BannerViewController : UIViewController
{
BOOL isInternetActive;
}
m file:
-(void)bannerView:(ADBannerView *)banner didFailToReceiveAdWithError:(NSError *)error
{
isInternetActive = NO; //it doesn't compile because of this. Error is "Use of undeclared identifier 'isInternetActive'
}
EDITED to show entire h and m file:
h file:
#import <UIKit/UIKit.h>
#import <iAd/iAd.h>
//#import <GoogleMobileAds/GoogleMobileAds.h> //Google
#import GoogleMobileAds;
extern NSString * const BannerViewActionWillBegin;
extern NSString * const BannerViewActionDidFinish;
#interface TestBannerViewController : UIViewController
{
GADBannerView *admobBannerView;
}
#property (nonatomic) BOOL isInternetActive;
- (instancetype)initWithContentViewController:(UIViewController *)contentController;
#end
m file:
#import "TestBannerViewController.h"
//#import <GoogleMobileAds/GoogleMobileAds.h> //Google
#import GoogleMobileAds;
NSString * const BannerViewActionWillBegin = #"BannerViewActionWillBegin";
NSString * const BannerViewActionDidFinish = #"BannerViewActionDidFinish";
#interface TestBannerViewController ()
// This method is used by BannerViewSingletonController to inform instances of TestBannerViewController that the banner has loaded/unloaded.
- (void)updateLayout;
#end
#interface BannerViewManager : NSObject <ADBannerViewDelegate>
#property (nonatomic, readonly) ADBannerView *bannerView;
//#property (nonatomic, weak) GADBannerView *admobBannerView; //Google
+ (BannerViewManager *)sharedInstance;
- (void)addBannerViewController:(TestBannerViewController *)controller;
- (void)removeBannerViewController:(TestBannerViewController *)controller;
#end
#implementation TestBannerViewController {
UIViewController *_contentController;
}
#synthesize isInternetActive;
- (instancetype)initWithContentViewController:(UIViewController *)contentController
{
NSAssert(contentController != nil, #"Attempting to initialize a BannerViewController with a nil contentController.");
self = [super init];
if (self != nil) {
_contentController = contentController;
[[BannerViewManager sharedInstance] addBannerViewController:self];
}
return self;
}
- (void)dealloc
{
[[BannerViewManager sharedInstance] removeBannerViewController:self];
}
- (void)loadView
{
UIView *contentView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Setup containment of the _contentController.
[self addChildViewController:_contentController];
[contentView addSubview:_contentController.view];
[_contentController didMoveToParentViewController:self];
NSLog(#"Google Mobile Ads SDK version: %#", [GADRequest sdkVersion]);
self.view = contentView;
}
#if __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_6_0
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return [_contentController shouldAutorotateToInterfaceOrientation:interfaceOrientation];
}
#endif
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
return [_contentController preferredInterfaceOrientationForPresentation];
}
- (NSUInteger)supportedInterfaceOrientations
{
return [_contentController supportedInterfaceOrientations];
}
- (void)viewDidLayoutSubviews
{
CGRect contentFrame = self.view.bounds, bannerFrame = CGRectZero;
ADBannerView *bannerView = [BannerViewManager sharedInstance].bannerView;
#if __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_6_0
NSString *contentSizeIdentifier;
if (contentFrame.size.width < contentFrame.size.height) {
contentSizeIdentifier = ADBannerContentSizeIdentifierPortrait;
} else {
contentSizeIdentifier = ADBannerContentSizeIdentifierLandscape;
}
bannerFrame.size = [ADBannerView sizeFromBannerContentSizeIdentifier:contentSizeIdentifier];
#else
bannerFrame.size = [bannerView sizeThatFits:contentFrame.size];
#endif
if (bannerView.bannerLoaded) {
contentFrame.size.height -= bannerFrame.size.height;
bannerFrame.origin.y = contentFrame.size.height;
} else {
//contentFrame.size.height -= bannerFrame.size.height;
bannerFrame.origin.y = contentFrame.size.height;
}
_contentController.view.frame = contentFrame;
if (self.isViewLoaded && (self.view.window != nil)) {
[self.view addSubview:bannerView];
bannerView.frame = bannerFrame;
#if __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_6_0
bannerView.currentContentSizeIdentifier = contentSizeIdentifier;
#endif
}
}
- (void)updateLayout
{
[UIView animateWithDuration:0.25 animations:^{
[self.view setNeedsLayout];
[self.view layoutIfNeeded];
}];
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
[self.view addSubview:[BannerViewManager sharedInstance].bannerView];
}
- (NSString *)title
{
return _contentController.title;
}
#end
#implementation BannerViewManager {
ADBannerView *_bannerView;
NSMutableSet *_bannerViewControllers;
}
+ (BannerViewManager *)sharedInstance
{
static BannerViewManager *sharedInstance = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
sharedInstance = [[BannerViewManager alloc] init];
});
return sharedInstance;
}
- (instancetype)init
{
self = [super init];
if (self != nil) {
if ([ADBannerView instancesRespondToSelector:#selector(initWithAdType:)]) {
_bannerView = [[ADBannerView alloc] initWithAdType:ADAdTypeBanner];
} else {
_bannerView = [[ADBannerView alloc] init];
}
_bannerView.delegate = self;
_bannerViewControllers = [[NSMutableSet alloc] init];
}
return self;
}
- (void)addBannerViewController:(TestBannerViewController *)controller
{
[_bannerViewControllers addObject:controller];
}
- (void)removeBannerViewController:(TestBannerViewController *)controller
{
[_bannerViewControllers removeObject:controller];
}
- (void)bannerViewDidLoadAd:(ADBannerView *)banner
{
for (TestBannerViewController *bvc in _bannerViewControllers) {
[bvc updateLayout];
}
}
-(void)bannerView:(ADBannerView *)banner didFailToReceiveAdWithError:(NSError *)error
{
for (TestBannerViewController *bvc in _bannerViewControllers) {
[bvc updateLayout];
}
isInternetActive = YES;
}
- (BOOL)bannerViewActionShouldBegin:(ADBannerView *)banner willLeaveApplication:(BOOL)willLeave
{
[[NSNotificationCenter defaultCenter] postNotificationName:BannerViewActionWillBegin object:self];
return YES;
}
- (void)bannerViewActionDidFinish:(ADBannerView *)banner
{
[[NSNotificationCenter defaultCenter] postNotificationName:BannerViewActionDidFinish object:self];
}
#end

Answer 1

You can create new header file in your project.
In that you can write like this :
static BOOL isInternetActive;
Import this header file where you want to access this bool value.
Hope this helps.

Answer 2

I think I got it. in the m file there are two #implementation files (two classes?) and that is why when declaring global in the h file the last class can't see it.