当蓝牙设备断开连接时，应用程序崩溃。 我见过很少相关主题，他们说
＆＃34;通知代表未重置为nil。修复已应用于版本10.3.79。＆＃34;
以下是崩溃日志：
Triggered by Thread: 0
Thread 0 name:
Thread 0 Crashed:
0 libobjc.A.dylib 0x000000018544c430 objc_msgSend + 16
1 ExternalAccessory 0x000000019c07c4dc -[EAAccessoryManager _notifyObserversThatAccessoryDisconnectedWithUserInfo:] + 104 (EAAccessoryManager.m:909)
2 ExternalAccessory 0x000000019c07eddc -[EAAccessoryManager _externalAccessoryDisconnected:] + 928 (EAAccessoryManager.m:1537)
3 CoreAccessories 0x00000001a7892ccc __54-[ACCExternalAccessoryProvider ExternalAccessoryLeft:]_block_invoke + 316 (ACCExternalAccessoryProvider.m:453)
4 libdispatch.dylib 0x0000000185b6d088 _dispatch_call_block_and_release + 24 (init.c:994)
5 libdispatch.dylib 0x0000000185b6d048 _dispatch_client_callout + 16 (object.m:502)
6 libdispatch.dylib 0x0000000185b79b74 _dispatch_main_queue_callback_4CF$VARIANT$mp + 1016 (inline_internal.h:2500)
7 CoreFoundation 0x0000000186191eb0 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 12 (CFRunLoop.c:1815)
8 CoreFoundation 0x000000018618fa8c __CFRunLoopRun + 2012 (CFRunLoop.c:3111)
9 CoreFoundation 0x00000001860affb8 CFRunLoopRunSpecific + 436 (CFRunLoop.c:3245)
10 GraphicsServices 0x0000000187f47f84 GSEventRunModal + 100 (GSEvent.c:2245)
11 UIKit 0x000000018f6842e8 UIApplicationMain + 208 (UIApplication.m:3949)
12 MYAPP 0x0000000100ab8d58 main + 172 (main.m:16)
13 libdyld.dylib 0x0000000185bd256c start + 4