任何线索或想法都会非常有用。我有点迷失在这里。谢谢！
Thread : Crashed: com.apple.main-thread
0 libobjc.A.dylib 0x0000000196a63bd0 objc_msgSend + 16
1 UIKit 0x000000018ab35418 -[UIApplication sendAction:to:from:forEvent:] + 96
2 UIKit 0x000000018ab1e52c -[UIControl _sendActionsForEvents:withEvent:] + 612
3 UIKit 0x000000018ab34db4 -[UIControl touchesEnded:withEvent:] + 592
4 UIKit 0x000000018ab34a40 -[UIWindow _sendTouchesForEvent:] + 700
5 UIKit 0x000000018ab2df94 -[UIWindow sendEvent:] + 684
6 UIKit 0x000000018ab0168c -[UIApplication sendEvent:] + 264
7 UIKit 0x000000018ada060c _UIApplicationHandleEventFromQueueEvent + 14992
8 UIKit 0x000000018aaffbf4 _UIApplicationHandleEventQueue + 1616
9 CoreFoundation 0x000000018630a9ec __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24
10 CoreFoundation 0x0000000186309c90 __CFRunLoopDoSources0 + 264
11 CoreFoundation 0x0000000186307d40 __CFRunLoopRun + 712
12 CoreFoundation 0x00000001862350a4 CFRunLoopRunSpecific + 396
13 GraphicsServices 0x000000018f3d75a4 GSEventRunModal + 168
14 UIKit 0x000000018ab66aa4 UIApplicationMain + 1488
15 Wiretap 0x000000010012b604 main (main.m:16)
16 libdyld.dylib 0x00000001970bea08 start + 4