ios - 谷歌登录 iOS : preferredInterfaceOrientationForPresentation (7) crash

Question

我们正在经历this crash来自 GoogleSignIn iOS 框架 v4.0.1(通过 CocoaPods 链接)。

致命异常:UIApplicationInvalidInterfaceOrientation
PreferredInterfaceOrientationForPresentation '(7​​)' 必须与支持的界面方向匹配:'portrait、landscapeLeft、landscapeRight、portraitUpsideDown'!

Fatal Exception: UIApplicationInvalidInterfaceOrientation
0  CoreFoundation                 0x184656fe0 __exceptionPreprocess
1  libobjc.A.dylib                0x1830b8538 objc_exception_throw
2  CoreFoundation                 0x184656f28 -[NSException initWithCoder:]
3  UIKit                          0x18a87cbbc -[UIViewController _preferredInterfaceOrientationForPresentationInWindow:fromInterfaceOrientation:]
4  UIKit                          0x18b159cf0 -[_UIFullscreenPresentationController _adjustOrientationIfNecessaryInWindow:forViewController:preservingViewController:]
5  UIKit                          0x18aad6d3c -[UIPresentationController _dismissWithAnimationController:interactionController:target:didEndSelector:]
6  UIKit                          0x18aafd53c -[UIViewController _dismissViewControllerWithAnimationController:interactionController:completion:]
7  UIKit                          0x18a8b2848 -[UIViewController _dismissViewControllerWithTransition:from:completion:]
8  UIKit                          0x18a85a6dc -[UIViewController dismissViewControllerWithTransition:completion:]
9  UIKit                          0x18a85a4bc -[UIViewController dismissViewControllerWithTransition:completion:]
10 UIKit                          0x18aafc7e4 -[UIViewController _performCoordinatedPresentOrDismiss:animated:]
11 UIKit                          0x18a85a230 -[UIViewController dismissViewControllerAnimated:completion:]
12 Remind101                      0x10069f6a0 -[GIDSignIn dismissViewController:]
13 Remind101                      0x100699c4c -[GIDSignIn handleURL:fromGoogleSSOApp:]
14 Remind101                      0x100699b60 -[GIDSignIn handleURL:sourceApplication:annotation:]
15 Remind101                      0x1001a7398 -[RDAppDelegate application:openURL:options:] (RDAppDelegate.m:495)
16 UIKit                          0x18aa13c28 __45-[UIApplication _applicationOpenURL:payload:]_block_invoke
17 UIKit                          0x18aa136b0 -[UIApplication _applicationOpenURL:payload:]
18 SafariServices                 0x19307a628 -[SFSafariViewController remoteViewController:hostApplicationOpenURL:]
19 SafariServices                 0x193072038 -[SFBrowserRemoteViewController willOpenURLInHostApplication:]
20 CoreFoundation                 0x18465ce80 __invoking___
21 CoreFoundation                 0x1845522c4 -[NSInvocation invoke]
22 FrontBoardServices             0x186200884 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__
23 FrontBoardServices             0x1862006f0 -[FBSSerialQueue _performNext]
24 FrontBoardServices             0x186200aa0 -[FBSSerialQueue _performNextFromRunLoopSource]
25 CoreFoundation                 0x18460542c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__
26 CoreFoundation                 0x184604d9c __CFRunLoopDoSources0
27 CoreFoundation                 0x1846029a8 __CFRunLoopRun
28 CoreFoundation                 0x184532da4 CFRunLoopRunSpecific
29 GraphicsServices               0x185f9d074 GSEventRunModal
30 UIKit                          0x18a7edc9c UIApplicationMain
31 Remind101                      0x10015b958 main (main.m:16)
32 libdyld.dylib                  0x18354159c start

我们的应用程序委托(delegate)方法(堆栈跟踪中的第 15 帧)实现如下:

- (BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary<UIApplicationOpenURLOptionsKey,id> *)options
{
    NSString *sourceApplication = options[UIApplicationOpenURLOptionsSourceApplicationKey];
    NSString *annotation = options[UIApplicationOpenURLOptionsAnnotationKey];

    // ... bunch of app-specific checks

    return [[GIDSignIn sharedInstance] handleURL:url sourceApplication:sourceApplication annotation:annotation];
}

我们的崩溃日志记录显示正在打开的网址如下所示(由于我不知道数字或 uid 是否可以以任何方式识别，因此进行了混淆):

openURL:com.googleusercontent.apps.(number)-(uid):/oauth2callback?code=4/-(uid)# sourceApplication:com.apple.SafariViewService annotation:(null)

我们在过去 7 天内收到了近 300 起此类崩溃。崩溃从 8 月 14 日开始(在 17 日达到峰值)，并出现在该日期之前发布的版本中，因此我不认为这是我们通过应用程序引入的任何内容。感谢您的帮助。

Answer 1

从堆栈跟踪来看，崩溃发生在 GoogleSignIn 关闭 SFSafariViewerController 之后。之前的 UIViewController(不是 GoogleSignIn 的一部分)再次暴露，但它为 preferredInterfaceOrientationForPresentation 返回了一个无法识别的值 (7)。请注意，如果 UIViewController 是您的第一个屏幕，则其 preferredInterfaceOrientationForPresentation 可能不会在其初始外观中被调用，而是使用 plist 中的 UISupportedInterfaceOrientations 值。因此，您可能在不知情的情况下从 UIViewController 返回了错误的 UIInterfaceOrientation，直到用户使用 Google 登录后 View 再次出现，导致崩溃。