我的游戏可以免费下载并有一个IAP来解锁整个游戏。在为少数用户购买后立即崩溃，并且通过在我的功能开头添加这两行来修复崩溃：
let delayTime = dispatch_time(DISPATCH_TIME_NOW, Int64(0.1 * Double(NSEC_PER_SEC)))
dispatch_after(delayTime, dispatch_get_main_queue()) {
*my original code*
}
以下是解决问题的主题：In App Purchase causes occasional crash
但是，虽然新用户不再出现此问题，但即使他们更新到固定版本，该应用仍然会在最初受到该问题影响的人身上崩溃。我认为在最初的崩溃中他们的设备上有一个损坏的设置，因为我有一个用户在他的另一台设备上下载了游戏，他能够恢复IAP并且玩游戏就好了。
以下是崩溃报告：
Incident Identifier: B7B61633-1BE4-4AB2-99ED-A207B2E88525
CrashReporter Key: 2b01761b32c1d23c1adf755f83cc58464c9e7e77
Hardware Model: iPhone5,2
Process: MyApp [551]
Path: /private/var/mobile/Containers/Bundle/Application/43D176E1-395E-4BF5-A0D5-3602068AADA6/MyApp.app/MyApp
Identifier: com.MyName.MyApp
Version: 5 (1.1)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2016-03-02 02:10:42.42 +0000
Launch Time: 2016-03-02 02:10:27.27 +0000
OS Version: iOS 9.2.1 (13D15)
Report Version: 105
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000001, 0x00000000e7ffdefe
Triggered by Thread: 0
Breadcrumb Trail: (reverse chronological seconds)
14 GC Framework: startAuthenticationForExistingPrimaryPlayer
Global Trace Buffer (reverse chronological seconds):
13.238455 CFNetwork 0x0000000023da3e45 TCP Conn 0x16ede9d0 SSL Handshake DONE
13.532519 CFNetwork 0x0000000023da3d7f TCP Conn 0x16ede9d0 starting SSL negotiation
13.534444 CFNetwork 0x0000000023e231a5 TCP Conn 0x16ede9d0 complete. fd: 11, err: 0
13.537454 CFNetwork 0x0000000023e242a7 TCP Conn 0x16ede9d0 event 1. err: 0
13.643210 CFNetwork 0x0000000023e24325 TCP Conn 0x16ede9d0 started
13.648224 CFNetwork 0x0000000023da3e45 TCP Conn 0x16ed89f0 SSL Handshake DONE
13.982238 CFNetwork 0x0000000023da3d7f TCP Conn 0x16ed89f0 starting SSL negotiation
13.982896 CFNetwork 0x0000000023e231a5 TCP Conn 0x16ed89f0 complete. fd: 6, err: 0
13.984447 CFNetwork 0x0000000023e242a7 TCP Conn 0x16ed89f0 event 1. err: 0
Thread 0 name:
Thread 0 Crashed:
0 MyApp 0x002028ac _TFFC11MyApp9IAPHelper12paymentQueueFS0_FTCSo14SKPaymentQueue19updatedTransactionsGSaCSo20SKPaymentTransaction__T_U_FT_T_ + 7504 (IAPHelper.swift:0)
1 libdispatch.dylib 0x23447dd6 _dispatch_call_block_and_release + 10 (init.c:760)
2 libdispatch.dylib 0x234514e6 _dispatch_after_timer_callback + 66 (queue.c:3293)
3 libdispatch.dylib 0x23447dc2 _dispatch_client_callout + 22 (init.c:819)
4 libdispatch.dylib 0x2345a6d2 _dispatch_source_latch_and_call + 2042 (inline_internal.h:1063)
5 libdispatch.dylib 0x23449d16 _dispatch_source_invoke + 738 (source.c:755)
6 libdispatch.dylib 0x2344c1fe _dispatch_main_queue_callback_4CF + 394 (inline_internal.h:1043)
7 CoreFoundation 0x2386cfc4 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 8 (CFRunLoop.c:1613)
8 CoreFoundation 0x2386b4be __CFRunLoopRun + 1590 (CFRunLoop.c:2718)
9 CoreFoundation 0x237bdbb8 CFRunLoopRunSpecific + 516 (CFRunLoop.c:2814)
10 CoreFoundation 0x237bd9ac CFRunLoopRunInMode + 108 (CFRunLoop.c:2844)
11 GraphicsServices 0x24a37af8 GSEventRunModal + 160 (GSEvent.c:2245)
12 UIKit 0x27aa9fb4 UIApplicationMain + 144 (UIApplication.m:3681)
13 MyApp 0x001898f4 main + 180 (AppDelegate.swift:12)
14 libdyld.dylib 0x23470872 start + 2 (start_glue.s:64)
Thread 1 name:
Thread 1:
0 libsystem_kernel.dylib 0x23543320 kevent_qos + 24
1 libdispatch.dylib 0x2345794e _dispatch_mgr_invoke + 254 (source.c:2542)
2 libdispatch.dylib 0x23449a2e _dispatch_mgr_thread + 38 (source.c:2573)
Thread 2:
0 libsystem_kernel.dylib 0x2354288c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x235e0e18 _pthread_wqthread + 1036 (pthread.c:1999)
2 libsystem_pthread.dylib 0x235e09fc start_wqthread + 8 (pthread_asm.s:147)
Thread 3:
0 libsystem_kernel.dylib 0x2354288c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x235e0e18 _pthread_wqthread + 1036 (pthread.c:1999)
2 libsystem_pthread.dylib 0x235e09fc start_wqthread + 8 (pthread_asm.s:147)
Thread 4:
0 libsystem_kernel.dylib 0x2354288c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x235e0e18 _pthread_wqthread + 1036 (pthread.c:1999)
2 libsystem_pthread.dylib 0x235e09fc start_wqthread + 8 (pthread_asm.s:147)
Thread 5 name:
Thread 5:
0 libsystem_kernel.dylib 0x2352dbf8 mach_msg_trap + 20 (syscall_sw.h:105)
1 libsystem_kernel.dylib 0x2352d9f8 mach_msg + 40 (mach_msg.c:103)
2 CoreFoundation 0x2386cf1c __CFRunLoopServiceMachPort + 136 (CFRunLoop.c:2345)
3 CoreFoundation 0x2386b2a2 __CFRunLoopRun + 1050 (CFRunLoop.c:2607)
4 CoreFoundation 0x237bdbb8 CFRunLoopRunSpecific + 516 (CFRunLoop.c:2814)
5 CoreFoundation 0x237bd9ac CFRunLoopRunInMode + 108 (CFRunLoop.c:2844)
6 CFNetwork 0x23e049e6 +[NSURLConnection(Loader) _resourceLoadLoop:] + 486 (NSURLConnection.mm:325)
7 Foundation 0x240c632c __NSThread__start__ + 1144 (NSThread.m:1134)
8 libsystem_pthread.dylib 0x235e2c7e _pthread_body + 138 (pthread.c:656)
9 libsystem_pthread.dylib 0x235e2bf2 _pthread_start + 110 (pthread.c:692)
10 libsystem_pthread.dylib 0x235e0a08 thread_start + 8 (pthread_asm.s:162)
Thread 6 name:
Thread 6:
0 libsystem_kernel.dylib 0x23541f14 __select + 20
1 CoreFoundation 0x238723c0 __CFSocketManager + 572 (CFSocket.c:2128)
2 libsystem_pthread.dylib 0x235e2c7e _pthread_body + 138 (pthread.c:656)
3 libsystem_pthread.dylib 0x235e2bf2 _pthread_start + 110 (pthread.c:692)
4 libsystem_pthread.dylib 0x235e0a08 thread_start + 8 (pthread_asm.s:162)
Thread 7:
0 libsystem_kernel.dylib 0x2354288c __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x235e0e18 _pthread_wqthread + 1036 (pthread.c:1999)
2 libsystem_pthread.dylib 0x235e09fc start_wqthread + 8 (pthread_asm.s:147)
Thread 0 crashed with ARM Thread State (32-bit):
r0: 0x00000000 r1: 0x00000000 r2: 0x39c940b0 r3: 0x00000000
r4: 0x00000000 r5: 0x00631376 r6: 0x00000000 r7: 0x0040dcf4
r8: 0x0064e984 r9: 0x00000000 r10: 0x00000001 r11: 0x16d54600
ip: 0xf64d8965 sp: 0x0040db34 lr: 0x002011f0 pc: 0x002028ac
cpsr: 0x60000010
Binary Images:
<not included for reasons of brevity>
这是引用崩溃的引用函数：
extension IAPHelper: SKPaymentTransactionObserver {
public func paymentQueue(queue: SKPaymentQueue, updatedTransactions transactions: [SKPaymentTransaction]) {
let delayTime = dispatch_time(DISPATCH_TIME_NOW, Int64(0.1 * Double(NSEC_PER_SEC)))
dispatch_after(delayTime, dispatch_get_main_queue()) {
for transaction in transactions {
switch (transaction.transactionState) {
case .Purchased:
print("case .Purchased:")
self.completeTransaction(transaction)
break
case .Failed:
print("case .Failed:")
self.failedTransaction(transaction)
break
case .Restored:
print("case .Restored:")
self.restoreTransaction(transaction)
break
case .Deferred:
print("case .Deferred:")
break
case .Purchasing:
print("case .Purchasing:")
break
}
}
}
}
有人知道如何解决这个问题吗？因为我无法重现它并且不知道从哪里开始。他们尝试从他们的设备上删除应用程序并下载更新版本，但没有任何区别。
编辑：
我想说清楚，大约有10％的人试图在1.0版本中购买IAP。现在，当他们试图在版本1.1中购买IAP时，它不会崩溃。这个问题是关于那些仍然无法正确加载游戏的1.0版本的10％，因为当SKPayment试图检查他们之前是否购买了IAP时，它每次都会崩溃。
编辑2：
以下是来自paymentQueue的方法：
private func completeTransaction(transaction: SKPaymentTransaction) {
provideContentForProductIdentifier(transaction.payment.productIdentifier)
SKPaymentQueue.defaultQueue().finishTransaction(transaction)
}
private func restoreTransaction(transaction: SKPaymentTransaction) {
let productIdentifier = transaction.originalTransaction!.payment.productIdentifier
provideContentForProductIdentifier(productIdentifier)
SKPaymentQueue.defaultQueue().finishTransaction(transaction)
}
private func failedTransaction(transaction: SKPaymentTransaction) {
NSNotificationCenter.defaultCenter().postNotificationName(IAPHelperStopSpinnerNotification, object: nil)
if transaction.error!.code != SKErrorPaymentCancelled {
NSNotificationCenter.defaultCenter().postNotificationName(IAPHelperTransactionFailedNotification, object: nil)
}
SKPaymentQueue.defaultQueue().finishTransaction(transaction)
}
编辑3：
我刚收到一个用户的崩溃报告，该用户的设备在进行IAP时崩溃，这表明最初的问题确实没有得到解决。 :-(这些崩溃的数量在更新版本中大幅减少，但看起来好像仍然存在根本原因。我将提出一个新的问题，提供更多细节，因为这个页面现在变得有点混乱！
答案 0 :(得分：0)
当用户进行购买时，购买实际上是通过Apple的软件进行的，并且Apple记录了购买，用户支付了他的钱，应用程序需要提供一些东西 - 当您调用finishTransaction时，当Apple假定已经完成交付时。
如果用户进行了购买，并且您的应用在进行购买和发送之间的用户之间崩溃，那么Apple仍然会记住用户付款时未付款。因此，无论何时开始收听付款队列，您都会收到有关此次促销的通知，此时您需要正确处理。如果您还没有看到用户进行购买，那么您的应用可能会出现意外情况。