인앱 구매 코드의 이상한 오류보고

Question

다음 코드는 애플리케이션에 인앱 구매를 추가하는 코드입니다. 모든 장치에서 완벽하게 작동합니다. 하지만 응용 프로그램에 Crashlytics 지원을 추가하면 매일 수백 개의 충돌보고가 발생합니다. 왜? 나는 제공된 코드에서 무엇이 잘못되었는지를 정말로 이해할 수 없다.

#define kInAppPurchaseManagerProductsFetchedNotification @"kInAppPurchaseManagerProductsFetchedNotification" 
#define kInAppPurchaseManagerTransactionFailedNotification @"kInAppPurchaseManagerTransactionFailedNotification" 
#define kInAppPurchaseManagerTransactionSucceededNotification @"kInAppPurchaseManagerTransactionSucceededNotification" 
#define gFullVersion @"%@.FullVersion" 

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { 
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; 
    if (self) { 
     [self loadStore]; 
    } 
} 

- (NSString*)getProductId:(NSString*)feature { 
    NSBundle *bundle = [NSBundle mainBundle]; 
    NSDictionary *info = [bundle infoDictionary]; 
    NSString *bundleIdentifier = [info objectForKey: @"CFBundleIdentifier"]; 
    return bundleIdentifier; 
} 

- (void)requestProducts:(NSString*)feature { 
    NSSet *productIdentifiers = [NSSet setWithObject:[self getProductId:feature]]; 
    if ([feature isEqualToString:gFullVersion]) { 
     if (productFullVersionRequest) { 
      [productFullVersionRequest release]; 
      productFullVersionRequest = nil; 
     } 
     productFullVersionRequest = [[SKProductsRequest alloc] initWithProductIdentifiers:productIdentifiers]; 
     productFullVersionRequest.delegate = self; 
     [productFullVersionRequest start]; 
     // we will release the request object in the delegate callback 
    } 
} 

- (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response { 
    [products addObjectsFromArray:response.products]; 
    for (SKProduct *product in response.products) { 
     if (product && [product.productIdentifier isEqualToString:[self getProductId:gFullVersion]]) { 
      // finally release the reqest we alloc/init’ed in requestCompilations 
      [productFullVersionRequest release]; 
      productFullVersionRequest = nil; 
     } 
    } 

    for (NSString *invalidProductId in response.invalidProductIdentifiers) { 
     NSLog(@"Invalid product id: %@" , invalidProductId); 
    } 

    [[NSNotificationCenter defaultCenter] postNotificationName:kInAppPurchaseManagerProductsFetchedNotification object:self userInfo:nil]; 
} 

// call this method once on startup 
- (void)loadStore { 
    // restarts any purchases if they were interrupted last time the app was open 
    [[SKPaymentQueue defaultQueue] addTransactionObserver:self]; 
    // get the product description (defined in early sections) 
    [self requestProducts:gFullVersion]; 
} 

// call this before making a purchase 
- (BOOL)canMakePurchases { 
    return [SKPaymentQueue canMakePayments]; 
} 

// kick off the upgrade transaction 
- (void)purchaseProduct:(NSString*)feature { 
    bool ok = false; 
    for (SKProduct *product in products) { 
     if ([product.productIdentifier isEqualToString:[self getProductId:feature]]) { 
      SKPayment *payment = [SKPayment paymentWithProduct:product]; 
      if (payment) { 
       [[SKPaymentQueue defaultQueue] addPayment:payment]; 
       break; 
      } 
     } 
    } 
} 

// saves a record of the transaction by storing the receipt to disk 
- (void)recordTransaction:(SKPaymentTransaction *)transaction { 
    if ([transaction.payment.productIdentifier isEqualToString:[self getProductId:gFullVersion]]) { 
     // save the transaction receipt to disk 
     [[NSUserDefaults standardUserDefaults] setValue:transaction.transactionReceipt forKey:[self getProductId:gFullVersion]]; 
     [[NSUserDefaults standardUserDefaults] synchronize]; 
    } 
} 

// enable pro features 
- (bool)provideContent:(NSString *)productId { 
    if ([productId isEqualToString:[self getProductId:gFullVersion]]) { 
     // ...provide content here... 
     return true; 
    } 
    return false; 
} 

// removes the transaction from the queue and posts a notification with the transaction result 
- (void)finishTransaction:(SKPaymentTransaction *)transaction wasSuccessful:(BOOL)wasSuccessful { 
    // remove the transaction from the payment queue. 
    [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; 

    NSDictionary *userInfo = [NSDictionary dictionaryWithObjectsAndKeys:transaction, @"transaction" , nil]; 
    if (wasSuccessful) { 
     // send out a notification that we’ve finished the transaction 
     [[NSNotificationCenter defaultCenter] postNotificationName:kInAppPurchaseManagerTransactionSucceededNotification object:self userInfo:userInfo]; 
    } else { 
     // send out a notification for the failed transaction 
     [[NSNotificationCenter defaultCenter] postNotificationName:kInAppPurchaseManagerTransactionFailedNotification object:self userInfo:userInfo]; 
    } 
} 

// called when the transaction was successful 
- (void)completeTransaction:(SKPaymentTransaction *)transaction { 
    [self recordTransaction:transaction]; 
    bool provided = [self provideContent:transaction.payment.productIdentifier]; 
    [self finishTransaction:transaction wasSuccessful:YES]; 
} 

// called when a transaction has been restored and and successfully completed 
- (void)restoreTransaction:(SKPaymentTransaction *)transaction { 
    [self recordTransaction:transaction.originalTransaction]; 
    [self provideContent:transaction.originalTransaction.payment.productIdentifier]; 
    [self finishTransaction:transaction wasSuccessful:YES]; 
} 

// called when a transaction has failed 
- (void)failedTransaction:(SKPaymentTransaction *)transaction { 
    if (transaction.error.code != SKErrorPaymentCancelled) { 
     // error! 
     [self finishTransaction:transaction wasSuccessful:NO]; 
     [self showAlert:NSLocalizedString(@"InAppPurchase", @"") alertStr:[transaction.error localizedDescription]]; 
    } else { 
     // this is fine, the user just cancelled, so don’t notify 
     [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; 
    } 
} 

// called when the transaction status is updated 
- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions { 
    for (SKPaymentTransaction *transaction in transactions) { 
     switch (transaction.transactionState) { 
      case SKPaymentTransactionStatePurchased: 
       [self completeTransaction:transaction]; 
       break; 
      case SKPaymentTransactionStateFailed: 
       [self failedTransaction:transaction]; 
       break; 
      case SKPaymentTransactionStateRestored: 
       [self restoreTransaction:transaction]; 
       break; 
      default: 
       break; 
     } 
    } 
} 

- (IBAction)processFullVersion:(id)sender { 
    if ([self canMakePurchases]) { 
     [self purchaseProduct:gFullVersion]; 
    } else { 
     [self showAlert:NSLocalizedString(@"InAppPurchase", @"") alertStr:NSLocalizedString(@"CanNotMakePurchases", @"")]; 
    } 
} 

- (IBAction)restoreCompletedTransactions:(id)sender { 
    [[SKPaymentQueue defaultQueue] restoreCompletedTransactions]; 
} 

충돌 보고서 :

Crashed: com.apple.main-thread 
EXC_BAD_ACCESS KERN_INVALID_ADDRESS at 0xa1c57ae2 
Thread : Crashed: com.apple.main-thread 
0 libobjc.A.dylib    0x3bf5e5d0 objc_msgSend + 15 
1 StoreKit      0x360260a7 __NotifyObserverAboutChanges + 66 
2 CoreFoundation     0x341aeacd CFArrayApplyFunction + 176 
3 StoreKit      0x36026055 -[SKPaymentQueue _notifyObserversAboutChanges:sendUpdatedDownloads:] + 128 
4 StoreKit      0x36024bc9 -[SKPaymentQueue addPayment:] + 464 
5 MyApplication     0x000a76d7 -[CalendarView purchaseProduct:] (CalendarView.m:952) 
6 MyApplication     0x000a8c17 -[CalendarView processFullVersion:] (CalendarView.m:1107) 
7 MyApplication     0x000a361b -[CalendarView clickHandler:] (CalendarView.m:458) 
8 MyApplication     0x000a55cf -[CalendarView liteVersionDisplayAlert] (CalendarView.m:671) 
9 MyApplication     0x000a5d2f -[CalendarView toggleView:] (CalendarView.m:735) 
10 MyApplication     0x000a625f -[CalendarView modeButtonPressed] (CalendarView.m:795) 
11 MyApplication     0x000c245f -[ToolbarView modePressed] (ToolbarView.m:304) 
12 UIKit       0x36162087 -[UIApplication sendAction:to:from:forEvent:] + 70 
13 UIKit       0x3616203b -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 30 
14 UIKit       0x36162015 -[UIControl sendAction:to:forEvent:] + 44 
15 UIKit       0x361618cb -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 502 
16 UIKit       0x36161db9 -[UIControl touchesEnded:withEvent:] + 488 
17 UIKit       0x3608a5f9 -[UIWindow _sendTouchesForEvent:] + 524 
18 UIKit       0x360778e1 -[UIApplication sendEvent:] + 380 
19 UIKit       0x360771ef _UIApplicationHandleEvent + 6198 
20 GraphicsServices    0x37d8f5f7 _PurpleEventCallback + 590 
21 GraphicsServices    0x37d8f227 PurpleEventCallback + 34 
22 CoreFoundation     0x3423d3e7 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 34 
23 CoreFoundation     0x3423d38b __CFRunLoopDoSource1 + 138 
24 CoreFoundation     0x3423c20f __CFRunLoopRun + 1382 
25 CoreFoundation     0x341af23d CFRunLoopRunSpecific + 356 
26 CoreFoundation     0x341af0c9 CFRunLoopRunInMode + 104 
27 GraphicsServices    0x37d8e33b GSEventRunModal + 74 
28 UIKit       0x360cb2b9 UIApplicationMain + 1120 
29 MyApplication     0x0007daff main (main.m:13) 

덕분에 도움을 많이!

Answer 1

지불 대기열에 추가 한 옵서버가 할당 해제 된 것처럼 보입니다. SKPaymentQueue addTransactionObserver:으로 전화를 걸지 만 SKPaymentQueue removeTransactionObserver:으로 전화하지 마십시오.

은 뷰 컨트롤러에 dealloc 방법을 추가

- (void)dealloc { 
    [[SKPaymentQueue defaultQueue] removeTransactionObserver:self]; 
} 

는 대부분의 경우 앱 관찰자로서 자신을 추가 뷰 컨트롤러를 보여 주었다. 그런 다음 해당보기 컨트롤러가 해제되었습니다 (그러나 여전히 관찰자로 표시됨). 나중에 컨트롤러의 다른 인스턴스를 표시하고 일부 지불 트랜잭션을 수행합니다. 지불 대기열은 이전 관찰자와 새 관찰자에게 통보하려고 시도합니다. 오래된 관찰자가 오래 동안 할당 해제 되었기 때문에 충돌이 발생합니다.

위의 dealloc 메서드를 추가하면이 문제가 해결됩니다.

Answer 2

키 값 관찰을 사용하는 것처럼 보입니다. 응용 프로그램이 섹션을

- (void)purchaseProduct:(NSString*)feature { 
    bool ok = false; 
    for (SKProduct *product in products) { 
     if ([product.productIdentifier isEqualToString:[self getProductId:feature]]) { 
      SKPayment *payment = [SKPayment paymentWithProduct:product]; 
      if (payment) { 
       [[SKPaymentQueue defaultQueue] addPayment:payment]; 
       break; 
      } 
     } 
    } 
} 

을 실행하고 성공적이없는 관찰자, 따라서 잘못된 메모리 액세스를 업데이트가는 지불을 추가 할 때 내가 추측하고있어.

[[SKPaymentQueue defaultQueue] addTransactionObserver : self]를 확인합니다.