iPhone 应用程序在快速停止/重新启动后崩溃
因此，当应用程序停止然后重新启动时速度非常快时，我的应用程序崩溃了，这是堆栈跟踪：
看起来 UITabBar 正在尝试访问空视图，因此 exc_bad_access。我很困惑为什么它只在重新启动时发生，而且我的选项卡栏是完全在 IB 中创建的。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 -[UITabBarControllertransitionFromViewController:toViewController:transition:shouldSetSelected:] + 212
3 UIKit 0x338c36cc -[UITabBarControllertransitionFromViewController:toViewController:] + 32
4 UIKit 0x338 c2d38 -[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 ：来自： 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（静态）_buttonUp：] + 108
18 CoreFound化 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：]第580章
25 UIKit 0x3383c4dc -[UIWindow sendEvent:] + 388
26 UIKit 0x3381fc94 -[UIApplication sendEvent:] + 444
27 UIKit 0x3381f3ac _UIApplicationHandleEvent + 6816
28 GraphicsServices 0x35262c80 PurpleEventCallback + 1040
29 CoreFoundation 0x 35e9a5c4 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 GSEventRunMod al + 188
35 UIKit 0x33865574 -[UIApplication _run] + 580
36 UIKit 0x33862550 UIApplicationMain + 964
37 励志名言 0x00002b96 0x1000 + 7062
38 条励志名言 0x00002b0c 0x1000 + 6924
So my app is crashing when the app is stopped and then restarted really fast here's the stack trace:
It looks like the UITabBar is trying to access a view that is null, hence the exc_bad_access. I'm confused as to why it only happens on the restart, also my tabbar is created fully in IB. Any thoughts would be great.
Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x00000000
Crashed Thread: 0
0x30183f24 objc_msgSend + 24
1 Inspirational Quotes 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(Internal) _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(Internal) _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 Inspirational Quotes 0x00002b96 0x1000 + 7062
38 Inspirational Quotes 0x00002b0c 0x1000 + 6924
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您遇到了异常
exc_bad_access，我认为您的 nib 文件未正确连接。将您的选项卡栏与选项卡栏控制器连接。You got the exception
exc_bad_access, I think your nib file is not connected properly.Connect your tab bar with a tab bar controller.为了避免使用异常处理崩溃，以下链接可能会对您有所帮助。
在 Objective-c/cocoa 中抛出异常< /a>
http://developer. apple.com/library/mac/#documentation/Cocoa/Conceptual/ObjectiveC/Articles/ocExceptionHandling.html
To Avoid from crashing use Exception Handling, here is the following links which may help you.
throwing an exception in objective-c/cocoa
http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/ObjectiveC/Articles/ocExceptionHandling.html