我正在用Cocoa编写一个静态库，Xcode项目包含一个“Example App”目标。在库中，我可以使用raise方法或@trow指令创建NSException对象并将其引发。我没有成功捕获示例应用程序中的异常。我的代码是：
@try {
sdk = [SDK GetInstanceWithApiKey:@"12345"];
} @catch (NSException *exception) {
NSLog(@"Exception:%@",exception);
}
不幸的是，应用程序没有进入catch块，它正常崩溃，就像我在没有try / catch块的情况下调用构造函数一样。可能我错过了一些重要的事情。感谢
在静态库中，这是我用来引发异常的代码：
NSException *exception = [[NSException alloc] initWithName:@"ConfigurationException" reason:@"Provided API Key is not valid." userInfo:NULL];
@throw exception;
这是日志中的崩溃报告：
2018-02-24 19:11:38.504384+0100 Example App[6585:366375] [General] An uncaught exception was raised
2018-02-24 19:11:38.504413+0100 Example App[6585:366375] [General] provided api key is not valid
2018-02-24 19:11:38.504475+0100 Example App[6585:366375] [General] (
0 CoreFoundation 0x00007fff3e757fcb __exceptionPreprocess + 171
1 libobjc.A.dylib 0x00007fff653f9c76 objc_exception_throw + 48
2 Example App 0x000000010000c701 -[raiseException:] + 273
3 Example App 0x0000000100005eff __84+[GetInstanceWithApiKey:sharedKey:productCode:licenseFilePath:]_block_invoke + 1567
4 libdispatch.dylib 0x000000010032dd1f _dispatch_client_callout + 8
5 libdispatch.dylib 0x000000010032dcff dispatch_once_f + 288
6 Example App 0x0000000100005800 +[GetInstanceWithApiKey:sharedKey:productCode:licenseFilePath:] + 400
7 Example App 0x0000000100001b6b -[AppDelegate applicationDidFinishLaunching:] + 91
8 CoreFoundation 0x00007fff3e6e7bbc __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 12
9 CoreFoundation 0x00007fff3e6e7aaa _CFXRegistrationPost + 442
10 CoreFoundation 0x00007fff3e6e77f2 ___CFXNotificationPost_block_invoke + 50
11 CoreFoundation 0x00007fff3e6a5670 -[_CFXNotificationRegistrar find:object:observer:enumerator:] + 1664
12 CoreFoundation 0x00007fff3e6a47a3 _CFXNotificationPost + 595
13 Foundation 0x00007fff40789467 -[NSNotificationCenter postNotificationName:object:userInfo:] + 66
14 AppKit 0x00007fff3bde760a -[NSApplication _postDidFinishNotification] + 313
15 AppKit 0x00007fff3bde7253 -[NSApplication _sendFinishLaunchingNotification] + 220
16 AppKit 0x00007fff3bcb9f13 -[NSApplication(NSAppleEventHandling) _handleAEOpenEvent:] + 562
17 AppKit 0x00007fff3bcb9b49 -[NSApplication(NSAppleEventHandling) _handleCoreEvent:withReplyEvent:] + 690
18 Foundation 0x00007fff407cc404 -[NSAppleEventManager dispatchRawAppleEvent:withRawReply:handlerRefCon:] + 287
19 Foundation 0x00007fff407cc282 _NSAppleEventManagerGenericHandler + 102
20 AE 0x00007fff3f7b7dd0 _Z20aeDispatchAppleEventPK6AEDescPS_jPh + 1788
21 AE 0x00007fff3f7b7677 _ZL25dispatchEventAndSendReplyPK6AEDescPS_ + 41
22 AE 0x00007fff3f7b7565 aeProcessAppleEvent + 383
23 HIToolbox 0x00007fff3d9f95e0 AEProcessAppleEvent + 55
24 AppKit 0x00007fff3bcb521e _DPSNextEvent + 2788
25 AppKit 0x00007fff3c44ab4c -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 3044
26 AppKit 0x00007fff3bca9d6d -[NSApplication run] + 764
27 AppKit 0x00007fff3bc78f1a NSApplicationMain + 804
28 Example App 0x0000000100001b02 main + 34
29 libdyld.dylib 0x00007fff65fe9115 start + 1
30 ??? 0x0000000000000003 0x0 + 3
)
2018-02-24 19:11:38.505511+0100 Example App[6585:366375] *** Terminating app due to uncaught exception 'LicenseConfigurationException', reason: 'provided api key is not valid'
*** First throw call stack:
(
0 CoreFoundation 0x00007fff3e757fcb __exceptionPreprocess + 171
1 libobjc.A.dylib 0x00007fff653f9c76 objc_exception_throw + 48
2 Example App 0x000000010000c701 -[raiseException:] + 273
3 Example App 0x0000000100005eff __84+[GetInstanceWithApiKey:sharedKey:productCode:licenseFilePath:]_block_invoke + 1567
4 libdispatch.dylib 0x000000010032dd1f _dispatch_client_callout + 8
5 libdispatch.dylib 0x000000010032dcff dispatch_once_f + 288
6 Example App 0x0000000100005800 +[GetInstanceWithApiKey:sharedKey:productCode:licenseFilePath:] + 400
7 Example App 0x0000000100001b6b -[AppDelegate applicationDidFinishLaunching:] + 91
8 CoreFoundation 0x00007fff3e6e7bbc __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 12
9 CoreFoundation 0x00007fff3e6e7aaa _CFXRegistrationPost + 442
10 CoreFoundation 0x00007fff3e6e77f2 ___CFXNotificationPost_block_invoke + 50
11 CoreFoundation 0x00007fff3e6a5670 -[_CFXNotificationRegistrar find:object:observer:enumerator:] + 1664
12 CoreFoundation 0x00007fff3e6a47a3 _CFXNotificationPost + 595
13 Foundation 0x00007fff40789467 -[NSNotificationCenter postNotificationName:object:userInfo:] + 66
14 AppKit 0x00007fff3bde760a -[NSApplication _postDidFinishNotification] + 313
15 AppKit 0x00007fff3bde7253 -[NSApplication _sendFinishLaunchingNotification] + 220
16 AppKit 0x00007fff3bcb9f13 -[NSApplication(NSAppleEventHandling) _handleAEOpenEvent:] + 562
17 AppKit 0x00007fff3bcb9b49 -[NSApplication(NSAppleEventHandling) _handleCoreEvent:withReplyEvent:] + 690
18 Foundation 0x00007fff407cc404 -[NSAppleEventManager dispatchRawAppleEvent:withRawReply:handlerRefCon:] + 287
19 Foundation 0x00007fff407cc282 _NSAppleEventManagerGenericHandler + 102
20 AE 0x00007fff3f7b7dd0 _Z20aeDispatchAppleEventPK6AEDescPS_jPh + 1788
21 AE 0x00007fff3f7b7677 _ZL25dispatchEventAndSendReplyPK6AEDescPS_ + 41
22 AE 0x00007fff3f7b7565 aeProcessAppleEvent + 383
23 HIToolbox 0x00007fff3d9f95e0 AEProcessAppleEvent + 55
24 AppKit 0x00007fff3bcb521e _DPSNextEvent + 2788
25 AppKit 0x00007fff3c44ab4c -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 3044
26 AppKit 0x00007fff3bca9d6d -[NSApplication run] + 764
27 AppKit 0x00007fff3bc78f1a NSApplicationMain + 804
28 Example App 0x0000000100001b02 main + 34
29 libdyld.dylib 0x00007fff65fe9115 start + 1
30 ??? 0x0000000000000003 0x0 + 3
)
libc++abi.dylib: terminating with uncaught exception of type NSException
答案 0 :(得分：0)
您的代码看起来不错。在Apple上发现这个 - https://developer.apple.com/library/content/technotes/tn2151/_index.html
查看“清单11”它说明了这一点：
注意：如果发现应用程序在异常处理域设置中引发的异常未被捕获，请确认在构建应用程序或库时未指定-no_compact_unwind标志。
因此，您可能需要删除该标志，如果它在您的构建设置中。