所以我的应用程序在应用程序停止时崩溃，然后在这里快速重启，这是堆栈跟踪：
看起来UITabBar正在尝试访问一个null的视图，因此是exc_bad_access。我很困惑为什么它只在重启时发生，我的tabbar也是在IB中完全创建的。任何想法都会很棒。
异常类型：EXC_BAD_ACCESS（SIGBUS） 异常代码：KERN_PROTECTION_FAILURE位于0x00000000 崩溃的线程：0
0x30183f24 objc_msgSend + 24 1励志名言0x00009900 0x1000 + 35072
2 UIKit 0x338c37b4 - [UITabBarController transitionFromViewController：toViewController：transition：shouldSetSelected：] + 212
3 UIKit 0x338c36cc - [UITabBarController transitionFromViewController：toViewController：] + 32
4 UIKit 0x338c2d38 - [UITabBarController _setSelectedViewController：] + 248
5 UIKit 0x339cbc44 - [UITabBarController setSelectedViewController：] + 12
6 UIKit 0x339cc888 - [UITabBarController _tabBarItemClicked：] + 308
7 CoreFoundation 0x35eada3c - [NSObject（NSObject）performSelector：withObject：withObject：] + 20
8 UIKit 0x3384af18 - [UIApplication sendAction：to：from：forEvent：] + 128
9 UIKit 0x3384ae80 - [UIApplication sendAction：toTarget：fromSender：forEvent：] + 32
10 UIKit 0x33ab1ed8 - [UITabBar _sendAction：withEvent：] + 416
11 CoreFoundation 0x35eada3c - [NSObject（NSObject）performSelector：withObject：withObject：] + 20
12 UIKit 0x3384af18 - [UIApplication sendAction：to：from：forEvent：] + 128
13 UIKit 0x3384ae80 - [UIApplication sendAction：toTarget：fromSender：forEvent：] + 32
14 UIKit 0x3384ae48 - [UIControl sendAction：to：forEvent：] + 44
15 UIKit 0x3384aa98 - [UIControl（内部）_sendActionsForEvents：withEvent：] + 528
16 UIKit 0x3388f338 - [UIControl sendActionsForControlEvents：] + 16
17 UIKit 0x33aae560 - [UITabBar（Static）_buttonUp：] + 108
18 CoreFoundation 0x35eada3c - [NSObject（NSObject）performSelector：withObject：withObject：] + 20
19 UIKit 0x3384af18 - [UIApplication sendAction：to：from：forEvent：] + 128
20 UIKit 0x3384ae80 - [UIApplication sendAction：toTarget：fromSender：forEvent：] + 32
21 UIKit 0x3384ae48 - [UIControl sendAction：to：forEvent：] + 44
22 UIKit 0x3384aa98 - [UIControl（内部）_sendActionsForEvents：withEvent：] + 528
23 UIKit 0x3384b5c4 - [UIControl touchesEnded：withEvent：] + 452
24 UIKit 0x3383cea8 - [UIWindow _sendTouchesForEvent：] + 580
25 UIKit 0x3383c4dc - [UIWindow sendEvent：] + 388
26 UIKit 0x3381fc94 - [UIApplication sendEvent：] + 444
27 UIKit 0x3381f3ac _UIApplicationHandleEvent + 6816
28 GraphicsServices 0x35262c80 PurpleEventCallback + 1040
29 CoreFoundation 0x35e9a5c4 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION + 22
30 CoreFoundation 0x35e9a582 __CFRunLoopDoSource1 + 158
31 CoreFoundation 0x35e8c82e __CFRunLoopRun + 574
32 CoreFoundation 0x35e8c504 CFRunLoopRunSpecific + 220
33 CoreFoundation 0x35e8c412 CFRunLoopRunInMode + 54
34 GraphicsServices 0x35261d1c GSEventRunModal + 188
35 UIKit 0x33865574 - [UIApplication _run] + 580
36 UIKit 0x33862550 UIApplicationMain + 964
37励志行情0x00002b96 0x1000 + 7062
38励志报价0x00002b0c 0x1000 + 6924
答案 0 :(得分：0)
您遇到异常exc_bad_access，我认为您的nib文件连接不正确。使用标签栏控制器连接标签栏。
答案 1 :(得分：0)