我将我的应用提交到应用商店，5天后他们拒绝了。他们告诉我该应用程序在运行iOS 7.1.1的7.1.1 iPhone 5上崩溃。
库AFNetworking上有问题吗？
感谢您的帮助。
这是崩溃报告：
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Triggered by Thread: 0
Last Exception Backtrace:
(0x18c2e2950 0x198cbc1fc 0x18afca928 0x10006812c 0x18f2ac670 0x18f2ac3f4 0x10007e828 0x18f2c410c 0x18f332508 0x18f332470 0x18f29e4cc 0x18c2a30a8 0x18c2a0330 0x18c2a06bc 0x18c1e16d0 0x191e7dc0c 0x18f312fdc 0x100104e08 0x1992afaa0)
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x00000001993aa868 __semwait_signal_nocancel + 8
1 libsystem_c.dylib 0x000000019931be5c usleep$NOCANCEL + 64
2 libsystem_c.dylib 0x000000019933e80c abort + 116
3 Bubbler 0x0000000100155b3c 0x100028000 + 1235772
4 CoreFoundation 0x000000018c2e2ce4 __handleUncaughtException + 640
5 libobjc.A.dylib 0x0000000198cbc4c4 _objc_terminate() + 112
6 libc++abi.dylib 0x000000019857f164 std::__terminate(void (*)()) + 12
7 libc++abi.dylib 0x000000019857ed38 __cxa_rethrow + 140
8 libobjc.A.dylib 0x0000000198cbc3a4 objc_exception_rethrow + 40
9 CoreFoundation 0x000000018c1e1748 CFRunLoopRunSpecific + 572
10 GraphicsServices 0x0000000191e7dc08 GSEventRunModal + 164
11 UIKit 0x000000018f312fd8 UIApplicationMain + 1152
12 Bubbler 0x0000000100104e04 0x100028000 + 904708
13 libdyld.dylib 0x00000001992afa9c start + 0
Thread 1 name: Dispatch queue: com.apple.libdispatch-manager
Thread 1:
0 libsystem_kernel.dylib 0x0000000199391aa8 kevent64 + 8
1 libdispatch.dylib 0x0000000199295998 _dispatch_mgr_thread + 48
Thread 2:
0 libsystem_kernel.dylib 0x00000001993aae74 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000199429548 start_wqthread + 0
Thread 3:
0 libsystem_kernel.dylib 0x00000001993aae74 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000199429548 start_wqthread + 0
Thread 4:
0 libsystem_kernel.dylib 0x0000000199391ca0 mach_msg_trap + 8
1 CoreFoundation 0x000000018c2a2570 __CFRunLoopServiceMachPort + 180
2 CoreFoundation 0x000000018c2a0700 __CFRunLoopRun + 832
3 CoreFoundation 0x000000018c1e16cc CFRunLoopRunSpecific + 448
4 Foundation 0x000000018cd7d2c0 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 292
5 Foundation 0x000000018cddad74 -[NSRunLoop(NSRunLoop) run] + 92
6 Bubbler 0x000000010016ebc8 0x100028000 + 1338312
7 Foundation 0x000000018ce64408 __NSThread__main__ + 996
8 libsystem_pthread.dylib 0x000000019942be18 _pthread_body + 164
9 libsystem_pthread.dylib 0x000000019942bd70 _pthread_start + 136
10 libsystem_pthread.dylib 0x0000000199429550 thread_start + 0
Thread 5:
0 libsystem_kernel.dylib 0x00000001993aae74 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000199429548 start_wqthread + 0
Thread 6:
0 libsystem_kernel.dylib 0x00000001993aae74 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000199429548 start_wqthread + 0
Thread 7 name: AFNetworking
Thread 7:
0 libsystem_kernel.dylib 0x0000000199391ca0 mach_msg_trap + 8
1 CoreFoundation 0x000000018c2a2570 __CFRunLoopServiceMachPort + 180
2 CoreFoundation 0x000000018c2a0700 __CFRunLoopRun + 832
3 CoreFoundation 0x000000018c1e16cc CFRunLoopRunSpecific + 448
4 Foundation 0x000000018cd7d2c0 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 292
5 Foundation 0x000000018cddad74 -[NSRunLoop(NSRunLoop) run] + 92
6 Bubbler 0x0000000100037ff0 0x100028000 + 65520
7 Foundation 0x000000018ce64408 __NSThread__main__ + 996
8 libsystem_pthread.dylib 0x000000019942be18 _pthread_body + 164
9 libsystem_pthread.dylib 0x000000019942bd70 _pthread_start + 136
10 libsystem_pthread.dylib 0x0000000199429550 thread_start + 0
Thread 8 name: com.apple.NSURLConnectionLoader
Thread 8:
0 libsystem_kernel.dylib 0x0000000199391ca0 mach_msg_trap + 8
1 CoreFoundation 0x000000018c2a2570 __CFRunLoopServiceMachPort + 180
2 CoreFoundation 0x000000018c2a0700 __CFRunLoopRun + 832
3 CoreFoundation 0x000000018c1e16cc CFRunLoopRunSpecific + 448
4 Foundation 0x000000018cdd6424 +[NSURLConnection(Loader) _resourceLoadLoop:] + 344
5 Foundation 0x000000018ce64408 __NSThread__main__ + 996
6 libsystem_pthread.dylib 0x000000019942be18 _pthread_body + 164
7 libsystem_pthread.dylib 0x000000019942bd70 _pthread_start + 136
8 libsystem_pthread.dylib 0x0000000199429550 thread_start + 0
Thread 9:
0 libsystem_kernel.dylib 0x00000001993aae74 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000199429548 start_wqthread + 0
Thread 10:
0 libsystem_kernel.dylib 0x00000001993aae74 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000199429548 start_wqthread + 0
Thread 11:
0 libsystem_kernel.dylib 0x00000001993aae74 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000199429548 start_wqthread + 0
Thread 12:
0 libsystem_kernel.dylib 0x00000001993aae74 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000199429548 start_wqthread + 0
Thread 13:
0 libsystem_kernel.dylib 0x00000001993aae74 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000199429548 start_wqthread + 0
Thread 14:
0 libsystem_kernel.dylib 0x00000001993aae74 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x0000000199429548 start_wqthread + 0
Thread 15:
0 libsystem_kernel.dylib 0x0000000199391ca0 mach_msg_trap + 8
1 CoreFoundation 0x000000018c2a2570 __CFRunLoopServiceMachPort + 180
2 CoreFoundation 0x000000018c2a0700 __CFRunLoopRun + 832
3 CoreFoundation 0x000000018c1e16cc CFRunLoopRunSpecific + 448
4 Foundation 0x000000018cd7d2c0 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 292
5 Foundation 0x000000018cddad74 -[NSRunLoop(NSRunLoop) run] + 92
6 Bubbler 0x0000000100145414 0x100028000 + 1168404
7 Foundation 0x000000018ce64408 __NSThread__main__ + 996
8 libsystem_pthread.dylib 0x000000019942be18 _pthread_body + 164
9 libsystem_pthread.dylib 0x000000019942bd70 _pthread_start + 136
10 libsystem_pthread.dylib 0x0000000199429550 thread_start + 0
Thread 16 name: com.apple.CFSocket.private
Thread 16:
0 libsystem_kernel.dylib 0x00000001993aa76c __select + 8
1 libsystem_pthread.dylib 0x000000019942be18 _pthread_body + 164
2 libsystem_pthread.dylib 0x000000019942bd70 _pthread_start + 136
3 libsystem_pthread.dylib 0x0000000199429550 thread_start + 0
Thread 0 crashed with ARM Thread State (64-bit):
x0: 0x000000000000003c x1: 0x0000000000000000 x2: 0x0000000000000001 x3: 0x0000000000000001
x4: 0x0000000000000000 x5: 0x0000000000989680 x6: 0x0000000000000000 x7: 0x0000000000000000
x8: 0x000000019c1f6000 x9: 0x0000000000000001 x10: 0x0000000000000000 x11: 0x00000000431bde83
x12: 0x0000000000000018 x13: 0x0000000000060000 x14: 0x0000000000000000 x15: 0x0000000000000000
x16: 0x00000000000001a7 x17: 0x00000001001d8390 x18: 0x0000000000000000 x19: 0x0000000000000000
x20: 0x000000016fdd78b0 x21: 0x00000001997050e0 x22: 0x000000017004e370 x23: 0x0000000000000013
x24: 0x0000000000000013 x25: 0x000000018f97c190 x26: 0x000000018f997f64 x27: 0x000000018c34dcb5
x28: 0x00000001996fc1f8 fp: 0x000000016fdd78a0 lr: 0x00000001992f6e4c
sp: 0x000000016fdd7870 pc: 0x00000001993aa868 cpsr: 0xa0000000
更新
Class captureDeviceClass = NSClassFromString(@"AVCaptureDevice");
if (captureDeviceClass != nil) {
AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
[device lockForConfiguration:nil];
[device setFlashMode:AVCaptureFlashModeOff];
[device unlockForConfiguration];
} //It crash in this line [device setFlashMode:AVCaptureFlashModeOff];
答案 0 :(得分：2)
来自Apple文档：
@property(nonatomic) AVCaptureFlashMode flashMode
Discussion
Before changing the value of this property,
you must call lockForConfiguration:
to acquire exclusive access to the device’s configuration properties.
Otherwise, setting the value of this property raises an exception.
When you are done configuring the device, call unlockForConfiguration
to release the lock and allow other devices to configure the settings.
这就是崩溃的原因，您需要获得独家访问权限。
所以只需添加：
if ([device isFlashModeSupported:AVCaptureFlashModeOff) {
NSError *error;
if ([device lockForConfiguration:&error) {
//It's now safe to add your original code here....
[device setFlashMode:AVCaptureFlashModeOff];
}
else
NSLog(@"ERROR: %@", [error localizedDescription]);
}
这样一来，如果有一个原因导致应用程序无法锁定您想要的闪光模式，您将收到错误消息。它也会跳过它，因此它不会引发异常＆amp;崩溃。
*仅通过阅读文档未经测试。