SKProductsRequest导致崩溃-Cocos2d和In App Purchase

问题描述

|| 我在“在应用程序中购买”和Cocos2D引擎遇到一个非常奇怪的问题。 一切似乎都运行良好，并且交易没有问题。 但是，当我多次打开和关闭使用“在应用程序中购买”交易的场景时，应用程序将崩溃。有时会在几分钟后发生。 .m文件： 在我的初始化函数中：

  if ([SKPaymentQueue canMakePayments]) {
    productsRequest=[[SKProductsRequest alloc] initWithProductIdentifiers:[NSSet setWithObjects: @\"xxx.blockads\",@\"xxx.unlocklevels\",nil]];
    productsRequest.delegate = self;
    [productsRequest start];
    } else {
    // 
    }

与“应用内”相关的其他功能

-(void) unlock1: (id) sender {

     payment = [SKPayment paymentWithProductIdentifier:@\"xxx.blockads\"];

     [[SKPaymentQueue defaultQueue] addTransactionObserver:self];

     [[SKPaymentQueue defaultQueue] addPayment:payment];

}


-(void) unlock2: (id) sender {

     payment = [SKPayment paymentWithProductIdentifier:@\"xxx.unlocklevels\"];

     [[SKPaymentQueue defaultQueue] addTransactionObserver:self];

     [[SKPaymentQueue defaultQueue] addPayment:payment];

}
- (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response {

     SKProduct *validProduct = nil;
     int count = [response.products count];
     if (count > 0) {

          validProduct = [response.products objectAtIndex:0];
     } else if (!validProduct) {

     }

     NSLog(@\"Valid products: %@\",response.products);
     NSLog(@\"invalid products: %@\",response.invalidProductIdentifiers);
}

- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions {

     for (SKPaymentTransaction *transaction in transactions) {

          switch (transaction.transactionState) {

               case SKPaymentTransactionStatePurchasing:


                                  break;

               case SKPaymentTransactionStatePurchased:
                                   //Something
                    [[SKPaymentQueue defaultQueue] finishTransaction:transaction];

                    break;


               case SKPaymentTransactionStateRestored:

                    [[SKPaymentQueue defaultQueue] finishTransaction:transaction];

                    break;

               case SKPaymentTransactionStateFailed:

                    if (transaction.error.code != SKErrorPaymentCancelled) {

                         NSLog(@\"An error encounterd\");
                    }

                    [[SKPaymentQueue defaultQueue] finishTransaction:transaction];

                    break;

          }
    }
}

崩溃日志：

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)

Exception Codes: KERN_INVALID_ADDRESS at 0xd0000008
Crashed Thread:  0
Thread 0 name:  Dispatch queue: com.apple.main-thread
Thread 0 Crashed:

0   libobjc.A.dylib                    0x35db9c98 objc_msgSend + 16
1   StoreKit                           0x31c77d96 -[SKProductsRequest handleFinishResponse:returningError:] + 38
2   StoreKit                           0x31c79086 -[SKRequest _requestFinishedNotification:] + 150
3   Foundation                         0x3010f17c _nsnote_callback + 136
4   CoreFoundation                     0x31091208 __CFXNotificationPost_old + 396
5   CoreFoundation                     0x3102bee4 _CFXNotificationPostNotification + 112
6   Foundation                         0x3010c5cc -[NSNotificationCenter postNotificationName:object:userInfo:] + 64
7   AppSupport                         0x325ae44e -[CPDistributedNotificationCenter deliverNotification:userInfo:] + 38
8   AppSupport                         0x325af77a _CPDNDeliverNotification + 198
9   AppSupport                         0x325ae1d0 _XDeliverNotification + 116
10  AppSupport                         0x325a4dd0 migHelperRecievePortCallout + 132
11  CoreFoundation                     0x31099a90 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 20
12  CoreFoundation                     0x3109b838 __CFRunLoopDoSource1 + 160
13  CoreFoundation                     0x3109c606 __CFRunLoopRun + 514
14  CoreFoundation                     0x3102cebc CFRunLoopRunSpecific + 224
15  CoreFoundation                     0x3102cdc4 CFRunLoopRunInMode + 52
16  GraphicsServices                   0x32215418 GSEventRunModal + 108
17  GraphicsServices                   0x322154c4 GSEventRun + 56
18  UIKit                              0x32795d62 -[UIApplication _run] + 398
19  UIKit                              0x32793800 UIApplicationMain + 664
20  ninjaballhd                        0x00003b96 main (main.m:13)
21  ninjaballhd                        0x00003b68 start + 32

Thread 1 name:  Dispatch queue: com.apple.libdispatch-manager
Thread 1:

0   libsystem_kernel.dylib             0x3002afbc kevent + 24
1   libdispatch.dylib                  0x366ee094 _dispatch_mgr_invoke + 672
2   libdispatch.dylib                  0x366ef04a _dispatch_queue_invoke + 86
3   libdispatch.dylib                  0x366ee60a _dispatch_worker_thread2 + 190
4   libsystem_c.dylib                  0x3624358a _pthread_wqthread + 258
5   libsystem_c.dylib                  0x36243bbc start_wqthread + 0


Thread 2:

0   libsystem_kernel.dylib             0x3002a3ec __workq_kernreturn + 8
1   libsystem_c.dylib                  0x362436d8 _pthread_wqthread + 592
2   libsystem_c.dylib                  0x36243bbc start_wqthread + 0

Thread 3 name:  WebThread

Thread 3:

0   libsystem_kernel.dylib             0x30027c00 mach_msg_trap + 20
1   libsystem_kernel.dylib             0x30027758 mach_msg + 44
2   CoreFoundation                     0x3109a2b8 __CFRunLoopServiceMachPort + 88
3   CoreFoundation                     0x3109c562 __CFRunLoopRun + 350
4   CoreFoundation                     0x3102cebc CFRunLoopRunSpecific + 224
5   CoreFoundation                     0x3102cdc4 CFRunLoopRunInMode + 52
6   WebCore                            0x32ccb37a RunWebThread(void*) + 378
7   libsystem_c.dylib                  0x3624230a _pthread_start + 242
8   libsystem_c.dylib                  0x36243bb4 thread_start + 0



Thread 4 name:  AURemoteIO::IOThread

Thread 4:
0   libsystem_kernel.dylib             0x30027c00 mach_msg_trap + 20
1   libsystem_kernel.dylib             0x30027758 mach_msg + 44
2   AudioToolbox                       0x32308824 AURemoteIO::IOThread::Run() + 80
3   AudioToolbox                       0x3230e342 AURemoteIO::IOThread::Entry(void*) + 2
4   AudioToolbox                       0x3224348a CAPThread::Entry(CAPThread*) + 138
5   libsystem_c.dylib                  0x3624230a _pthread_start + 242
6   libsystem_c.dylib                  0x36243bb4 thread_start + 0

    

解决方法

这很可能是内存管理问题。

handleFinishResponse:returningError:

可能是由于内存管理错误而被释放的对象的内部方法。 在收到IAP的响应之前，您要取消分配处理应用程序内购买的控制器。由于来自互联网连接的延迟响应，选择器被发送到一个已释放对象。 在Stackoverflow上还有另一个问题，具有完全相同的例外，其原因是内存管理问题。 使用NSZombieEnabled检查这是否是导致异常的原因 从cocoadev.com： 双击您的Xcode项目的“可执行文件”组中的可执行文件。 单击参数选项卡。 在“要在环境中设置的变量：”部分中，创建一个名为“ NSZombieEnabled \”的变量，并将其值设置为“ YES”。     ,

handleFinishResponse:returningError:

的代码在哪里-如果不存在，则说明正在导致崩溃。 还将以下代码添加到您的场景中，以停止创建多个事务观察器：

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