ios - Using iAds on iPad crashes after huge number of calls to bannerView:didFailToReceiveAdWithError: -

i have app uses xib defined adbannerview. if app runs on iphone (4 or 5) works expected, ads shown, banners hidden / shown etc.

however if app run on ipad crashes after repeatedly failing receive ad. examining call stack shows repeated calls bannerview:didfailtoreceiveadwitherror:

watching allocations while running on ipad shows continuous memory growth until crash.

messing network connectivity doesn't seem alter fact works on iphone not on ipad.

i read this question instead of using adbannerview in xib creates on fly , releases appropriately when ad fails load.

edit:

i changed devices setting in project file iphone universal. app not crash of course views 'messed up'. 1 option fix implement ipad idiom throughout app.

my questions -

1. what going on? no, really! i'm confused why there differing behaviour between devices.

2. should creating adbannerview programmatically? that kind of feels defeatist.

3. how can fix behaviour?

here code

#pragma mark adbannerviewdelegate  - (void)bannerviewdidloadad:(adbannerview *)banner {     [self showbanner]; }  - (void)bannerview:(adbannerview *)banner didfailtoreceiveadwitherror:(nserror *)error {     [self hidebanner]; }  - (void)bannerviewactiondidfinish:(adbannerview *)banner {     [self hidebanner]; }  #pragma mark adbanner helpers  - (void)hidebanner {     cgrect hiddenframe = self.bannerdisplayframe;     hiddenframe.origin.y = self.view.frame.size.height;      [uiview animatewithduration:0.3f                      animations:^{                          [self.adbannerview setframe:hiddenframe];                      }                      completion:^(bool finished)                      {                          if (finished)                          {                              [self.adbannerview setalpha:0.0f];                          }                      }]; }  - (void)showbanner {     [self.adbannerview setalpha:1.0f];     [uiview animatewithduration:0.3f                      animations:^{                          [self.adbannerview setframe:self.bannerdisplayframe];                      }                      completion:^(bool finished)                      {                          if (finished)                          {                              [nstimer scheduledtimerwithtimeinterval:60.0f target:self selector:@selector(hidebanner) userinfo:nil repeats:no];                          }                      }];  } 

it looks creating new iad banner views every time, suggested way use shared 1 throughout whole app. might reason of continuous memory growth in app , end warning apple servers if request ads many times. have @ here in apple's documentation more details iad best practices

this how implemented shared adbannerview, might of help.

appdelegate.h

@property (nonatomic, strong) adbannerview *adbanner; 

appdelegate.m

- (bool)application:(uiapplication *)application didfinishlaunchingwithoptions:(nsdictionary *)launchoptions {     ...     adbanner = [[adbannerview alloc] initwithframe:cgrectzero];     adbanner.delegate = self;     adbanner.backgroundcolor = [uicolor clearcolor];     adbanner.autoresizingmask = uiviewautoresizingflexiblewidth | uiviewautoresizingflexibleheight | uiviewautoresizingflexibletopmargin;     ... } 

prefix.pch or better in header file included in prefix.pch

#define sharedadbannerview ((appdelegate *)[[uiapplication sharedapplication] delegate]).adbanner 

and have implemented uiviewcontroller category handle iads

@implementation uiviewcontroller (supportiad)  -(void)bannerviewdidloadad:(adbannerview *)banner {     sharedadbannerview.hidden = false; }  -(void) bannerview:(adbannerview *)banner didfailtoreceiveadwitherror:(nserror *)error {     sharedadbannerview.hidden = true; }  //this method adds shared adbannerview current view , sets location bottom of screen //should work on devices -(void) addadbannerviewtobottom {     sharedadbannerview.delegate = self;     //position banner below screen     sharedadbannerview.frame = cgrectmake(0, self.view.bounds.size.height, 0, 0);     //height automatically set, raise view own height     sharedadbannerview.frame = cgrectoffset(sharedadbannerview.frame, 0, -sharedadbannerview.frame.size.height);     [self.view addsubview:sharedadbannerview]; }  -(void) removeadbannerview {     sharedadbannerview.delegate = nil;     [sharedadbannerview removefromsuperview]; }  @end 

and in every viewcontroller going display iads, import category , in viewdidload:

- (void)viewdidload {     ...     [self removeadbannerview];     [self addadbannerviewtobottom];     ... }