Question

我正在制作专门用于学校的教育应用程序。当我开始这个项目时，我没有考虑到学校里有多少iPad。其中一些是iOs 9.3.5，似乎有些麻烦。因为他们被锁定了，除了阅读错误日志外，我无法对他们做很多事情，但是我看不到有什么对我有帮助的信息。

崩溃似乎是随机的，但总是在视图控制器更改时发生，但其中一些偶尔会崩溃，另一些会100％地崩溃，而另一些会间歇性崩溃。这是我用来更改视图的代码：

let nextViewController = self.storyboard?.instantiateViewController(withIdentifier: "drawNotesViewController") as! drawNotesViewController
            self.present(nextViewController, animated: true, completion: nil)

这是崩溃报告：

Incident Identifier: 9C9815CC-F932-4E28-AB1B-132B330430EE
CrashReporter Key:   344cf11c25d3ceced28918b31fcdb3a79aaea75e
Hardware Model:      iPad2,5
Process:             Reading Music Tests [847]
Path:                /private/var/containers/Bundle/Application/4587C3D5-5A00-4B7C-9056-81BCB97A1B59/Reading Music Tests.app/Reading Music Tests
Identifier:          ..
Version:             8 (0.9.7)
Code Type:           ARM (Native)
Parent Process:      launchd [1]

Date/Time:           2018-10-17 09:40:28.28 +0100
Launch Time:         2018-10-17 09:31:59.59 +0100
OS Version:          iOS 9.3.5 (13G36)
Report Version:      104

Exception Type:  EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000001, 0x000000000000defe
Triggered by Thread:  0

Filtered syslog:
None found

Thread 0 name:  Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0   Reading Music Tests             0x0014b9a4 0xfc000 + 326052
1   Reading Music Tests             0x0015eed4 0xfc000 + 405204
2   Reading Music Tests             0x0015e584 0xfc000 + 402820
3   Reading Music Tests             0x0015e7a8 0xfc000 + 403368
4   UIKit                           0x2558ad8a -[UIViewController loadViewIfRequired] + 1026
5   UIKit                           0x2558a970 -[UIViewController view] + 24
6   UIKit                           0x25e1fec0 -[_UIFullscreenPresentationController _setPresentedViewController:] + 72
7   UIKit                           0x258d6d00 -[UIPresentationController initWithPresentedViewController:presentingViewController:] + 112
8   UIKit                           0x258fa6e4 -[UIViewController _presentViewController:withAnimationController:completion:] + 3668
9   UIKit                           0x258fcd24 __62-[UIViewController presentViewController:animated:completion:]_block_invoke + 336
10  UIKit                           0x258fcf90 -[UIViewController _performCoordinatedPresentOrDismiss:animated:] + 416
11  UIKit                           0x25683db8 -[UIViewController presentViewController:animated:completion:] + 144
12  Reading Music Tests             0x0016a33e 0xfc000 + 451390
13  Reading Music Tests             0x0016a6ce 0xfc000 + 452302
14  UIKit                           0x25af09ea _UIGestureRecognizerSendTargetActions + 142
15  UIKit                           0x2572b84e _UIGestureRecognizerSendActions + 170
16  UIKit                           0x255bcff0 -[UIGestureRecognizer _updateGestureWithEvent:buttonEvent:] + 1004
17  UIKit                           0x25af1d4e ___UIGestureRecognizerUpdate_block_invoke898 + 62
18  UIKit                           0x2557da56 _UIGestureRecognizerRemoveObjectsFromArrayAndApplyBlocks + 298
19  UIKit                           0x2557a016 _UIGestureRecognizerUpdate + 2902
20  UIKit                           0x255baec8 -[UIWindow _sendGesturesForEvent:] + 904
21  UIKit                           0x255ba67a -[UIWindow sendEvent:] + 622
22  UIKit                           0x2558b124 -[UIApplication sendEvent:] + 204
23  UIKit                           0x255896d2 _UIApplicationHandleEventQueue + 5010
24  CoreFoundation                  0x20fd1dfe __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 14
25  CoreFoundation                  0x20fd19ec __CFRunLoopDoSources0 + 452
26  CoreFoundation                  0x20fcfd5a __CFRunLoopRun + 794
27  CoreFoundation                  0x20f1f228 CFRunLoopRunSpecific + 520
28  CoreFoundation                  0x20f1f014 CFRunLoopRunInMode + 108
29  GraphicsServices                0x2250fac8 GSEventRunModal + 160
30  UIKit                           0x255f3188 UIApplicationMain + 144
31  Reading Music Tests             0x00103a7e 0xfc000 + 31358
32  libdyld.dylib                   0x20bc7872 start + 2

Thread 1 name:  Dispatch queue: com.apple.libdispatch-manager
Thread 1:
0   libsystem_kernel.dylib          0x20c9c2f8 kevent_qos + 24
1   libdispatch.dylib               0x20b91d60 _dispatch_mgr_invoke + 256
2   libdispatch.dylib               0x20b91abe _dispatch_mgr_thread$VARIANT$mp + 38

Thread 2:
0   libsystem_kernel.dylib          0x20c9b864 __workq_kernreturn + 8
1   libsystem_pthread.dylib         0x20d41b34 _pthread_wqthread + 1036
2   libsystem_pthread.dylib         0x20d41718 start_wqthread + 8

Thread 0 crashed with ARM Thread State (32-bit):
    r0: 0x00000000    r1: 0x00000000      r2: 0x00000002      r3: 0x00000202
    r4: 0x155bf580    r5: 0x155bb5d0      r6: 0x00000000      r7: 0x002d9598
    r8: 0x156cf8b0    r9: 0x155bf584     r10: 0x001b4158     r11: 0x00195912
    ip: 0x00549d75    sp: 0x002d9530      lr: 0x0014b589      pc: 0x0014b9a4
  cpsr: 0x60000030

Error Formulating Crash Report:
Failed while requesting activity/breadcrumb diagnostics

我讨厌只在此处转储崩溃报告并寻求帮助，但我一直盯着它，无法弄清错误是什么。如果崩溃报告中没有明确的答案，那么我将返回项目，看看是否可以看到导致其崩溃的模式。到目前为止，我所知道的只是让我担忧的间歇性问题！

Answer 1

我发现它是一种缺少的字体，直到9.3.5之后，它才包含在iO中。我现在了解到，在这种情况下，那些崩溃报告没有包含足够的信息，所以我们汲取了教训！

处理旧的iOs设备

1 个答案: