了解适用于iOS应用的Firebase Crashlytics报告

如何解决了解适用于iOS应用的Firebase Crashlytics报告

我有一个iOS应用，该应用使用Firebase Crashlytics报告崩溃。现在，我有一个崩溃报告，但我的问题是我无法从该报告中了解导致崩溃的确切原因。

崩溃报告：

print(df.head)

<bound method NDFrame.head of              ds    Y
0    2015-02-01  673
1    2015-05-01  663
2    2015-06-01  663
3    2015-07-01  668
4    2015-08-01  680
...         ...  ...
1419 2020-10-23  775
1420 2020-10-26  805
1421 2020-10-27  810
1422 2020-10-28  828
1423 2020-10-29  825

下面是CasesDetails View Controller中的函数getBaseData（）：

Crashed: com.apple.main-thread
0  Nail it                        0x104db77a8 CaseDetailsViewController.getbaseData() + 253 
(CaseDetailsViewController.swift:253)
1  Nail it                        0x104db5168 CaseDetailsViewController.viewDidLoad() + 4335047016 (<compiler-generated>:4335047016)
2  Nail it                        0x104db521c @objc CaseDetailsViewController.viewDidLoad() + 4335047196 (<compiler-generated>:4335047196)
3  UIKitCore                      0x185d11658 -[UIViewController _sendViewDidLoadWithAppearanceProxyObjectTaggingEnabled] + 100
4  UIKitCore                      0x185d160e8 -[UIViewController loadViewIfRequired] + 936
5  UIKitCore                      0x185d164f0 -[UIViewController view] + 28
6  UIKit                          0x1b913374c -[UIViewControllerAccessibility dismissViewControllerWithTransition:completion:] + 268
7  UIKitCore                      0x185d28d6c -[UIViewController _performCoordinatedPresentOrDismiss:animated:] + 508
8  UIKitCore                      0x185d2b474 -[UIViewController dismissViewControllerAnimated:completion:] + 132
9  UIKit                          0x1b91333c0 -[UIViewControllerAccessibility dismissViewControllerAnimated:completion:] + 120
10 Nail it                        0x104db98ec @objc CaseDetailsViewController.backButton(_:) + 4335065324 (<compiler-generated>:4335065324)
11 UIKitCore                      0x18635a72c -[UIApplication sendAction:to:from:forEvent:] + 96
12 UIKitCore                      0x185a05474 __45-[_UIButtonBarTargetAction _invoke:forEvent:]_block_invoke + 80
13 UIKitCore                      0x185a05304 -[_UIButtonBarTargetAction _invoke:forEvent:] + 236
14 UIKitCore                      0x18635a72c -[UIApplication sendAction:to:from:forEvent:] + 96
15 UIKitCore                      0x185d6aed0 -[UIControl sendAction:to:forEvent:] + 240
16 UIKitCore                      0x185d6b228 -[UIControl _sendActionsForEvents:withEvent:] + 396
17 UIKitCore                      0x185d6a24c -[UIControl touchesEnded:withEvent:] + 516
18 UIKitCore                      0x18639449c -[UIWindow _sendTouchesForEvent:] + 1280
19 UIKitCore                      0x186395c64 -[UIWindow sendEvent:] + 3468
20 UIKitCore                      0x1863718ec -[UIApplication sendEvent:] + 344
21 UIKit                          0x1b90db80c -[UIApplicationAccessibility sendEvent:] + 96
22 UIKitCore                      0x1863f2970 __dispatchPreprocessedEventFromEventQueue + 6808
23 UIKitCore                      0x1863f54ec __handleEventQueueInternal + 5364
24 UIKitCore                      0x1863ed168 __handleHIDEventFetcherDrain + 140
25 CoreFoundation                 0x182223ad8 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 24
26 CoreFoundation                 0x182223a30 __CFRunLoopDoSource0 + 80
27 CoreFoundation                 0x1822231b8 __CFRunLoopDoSources0 + 184
28 CoreFoundation                 0x18221e1e8 __CFRunLoopRun + 788
29 CoreFoundation                 0x18221dba8 CFRunLoopRunSpecific + 424
30 GraphicsServices               0x18c394344 GSEventRunModal + 160
31 UIKitCore                      0x1863593e4 UIApplicationMain + 1932
32 Nail it                        0x104d797cc main + 16 (AppDelegate.swift:16)
33 libdyld.dylib                  0x1820a58f0 start + 4

第235行是（contactNumberText.text = altenativeMobile）作为上面代码中的最后一行

解决方法

所有UI内容都应在主线程上执行，这就是崩溃报告显示的内容（由于主线程而崩溃）。

所以您的最后一行应该是：

DispatchQueue.main.async {
    self.contactNumberText.text = altenativeMobile
}

更新此行，您的崩溃将得到修复。