*** 由于未捕获的异常 'NSInternalInconsistencyException' 而终止应用程序，原因：'threading violation: expected the main thread'
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'threading violation: expected the main thread'
我遇到了一个问题，当用户点击个人资料图片将他们的照片上传到应用程序时，我们的应用程序崩溃了。该应用程序向用户发送授权请求，点击 "allow" 按钮后立即发生崩溃。
也许相关信息是这不是根视图控制器。注册过程在同一个 Storyboard 上有一系列页面。这发生在我需要请求 不是 主根控制器的权限的任何页面上。
我试图将 PhotoAuthorization 代码块放入 DispatchQueue.main.async，但这似乎不起作用。这是前开发人员的遗留代码，所以我仍在努力修复一些东西。
疑似导致应用崩溃的代码块：
func checkPermission() {
let photoAuthStatus = PHPhotoLibrary.authorizationStatus()
switch photoAuthStatus {
case .authorized:
self.showPhotoActionSheet()
case .notDetermined:
PHPhotoLibrary.requestAuthorization({ (newStatus) in
if newStatus == PHAuthorizationStatus.authorized {
self.showPhotoActionSheet()
}
})
case .restricted:
showPermissionRequestReason()
case .denied:
showPermissionRequestReason()
}
}
func showPhotoActionSheet() {
let actionSheet = YoutubeActionController()
actionSheet.addAction(Action(ActionData(title: "Take Photo", image: UIImage(named: "ic_photo_camera")!), style: .default, handler: { action in
if UIImagePickerController.isSourceTypeAvailable(.camera) {
self.imagePicker.sourceType = .camera
self.imagePicker.allowsEditing = true
self.present(self.imagePicker, animated: true, completion: nil)
}
}))
actionSheet.addAction(Action(ActionData(title: "Choose from Camera Roll", image: UIImage(named: "ic_photo_album")!), style: .default, handler: { action in
if UIImagePickerController.isSourceTypeAvailable(.savedPhotosAlbum) {
self.imagePicker.sourceType = .savedPhotosAlbum
self.imagePicker.allowsEditing = true
self.present(self.imagePicker, animated: true, completion: nil)
}
}))
actionSheet.addAction(Action(ActionData(title: "Cancel", image: UIImage(named: "ic_cancel")!), style: .cancel, handler: nil))
present(actionSheet, animated: true, completion: nil)
}
找到下面的回溯。任何帮助是极大的赞赏！
2020-01-23 13:39:23.878772+0000 ***[89799:17598462] *** Assertion failure in -[FBSSerialQueue assertOnQueue], /BuildRoot/Library/Caches/com.apple.xbs/Sources/FrontBoardServices_Sim/FrontBoard-626.2/FrontBoardServices/FBSSerialQueue.m:98
2020-01-23 13:39:23.990535+0000 ***[89799:17598462] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'threading violation: expected the main thread'
*** First throw call stack:
(
0 CoreFoundation 0x0000000115f7102e __exceptionPreprocess + 350
1 libobjc.A.dylib 0x0000000115ddeb20 objc_exception_throw + 48
2 CoreFoundation 0x0000000115f70da8 +[NSException raise:format:arguments:] + 88
3 Foundation 0x000000010f613b61 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 191
4 FrontBoardServices 0x000000011c344a8b -[FBSSerialQueue assertOnQueue] + 236
5 FrontBoardServices 0x000000011c2f77b9 -[FBSSceneImpl updateClientSettings:withTransitionContext:] + 70
6 FrontBoardServices 0x000000011c2f7a04 -[FBSSceneImpl updateClientSettingsWithTransitionBlock:] + 154
7 FrontBoardServices 0x000000011c2f7929 -[FBSSceneImpl updateClientSettingsWithBlock:] + 110
8 UIKitCore 0x00000001200c7aa0 -[FBSScene(UIApp) updateUIClientSettingsWithBlock:] + 160
9 UIKitCore 0x000000011fcbf5f6 -[_UISystemAppearanceManager updateScreenEdgesDeferringSystemGestures] + 374
10 UIKitCore 0x000000011ff229e2 __70-[UIViewController setNeedsUpdateOfScreenEdgesDeferringSystemGestures]_block_invoke_2 + 118
11 UIKitCore 0x000000011ff00cb5 -[UIViewController _updateSystemAppearanceWithRecursionBlock:action:] + 295
12 UIKitCore 0x000000011ff22629 -[UIViewController _setPresentedStatusBarViewController:] + 220
13 UIKitCore 0x000000011ff129c3 -[UIViewController _presentViewController:modalSourceViewController:presentationController:animationController:interactionController:completion:] + 1381
14 UIKitCore 0x000000011ff143c6 -[UIViewController _presentViewController:withAnimationController:completion:] + 4349
15 UIKitCore 0x000000011ff16c47 __63-[UIViewController _presentViewController:animated:completion:]_block_invoke + 98
16 UIKitCore 0x000000011ff1715f -[UIViewController _performCoordinatedPresentOrDismiss:animated:] + 511
17 UIKitCore 0x000000011ff16ba5 -[UIViewController _presentViewController:animated:completion:] + 187
18 UIKitCore 0x000000011ff16e0c -[UIViewController presentViewController:animated:completion:] + 150
19 *** 0x000000010dc472ca $s14***26RegistrationViewControllerC20showPhotoActionSheetyyF + 2522
20 *** 0x000000010dc462b9 $s14***26RegistrationViewControllerC15checkPermissionyyFySo21PHAuthorizationStatusVcfU_ + 201
21 *** 0x000000010dc46355 $sSo21PHAuthorizationStatusVIegy_ABIeyBy_TR + 53
22 Photos 0x0000000116a72643 __39+[PHPhotoLibrary requestAuthorization:]_block_invoke + 52
23 AssetsLibraryServices 0x000000013927ff7e __79-[PLPrivacy _isPhotosAccessAllowedWithScope:forceHandler:accessAllowedHandler:]_block_invoke.14 + 501
24 AssetsLibraryServices 0x000000013924b60c __pl_dispatch_async_block_invoke + 25
25 libdispatch.dylib 0x0000000117a02848 _dispatch_call_block_and_release + 12
26 libdispatch.dylib 0x0000000117a037b9 _dispatch_client_callout + 8
27 libdispatch.dylib 0x0000000117a09526 _dispatch_lane_serial_drain + 707
28 libdispatch.dylib 0x0000000117a09f5c _dispatch_lane_invoke + 388
29 libdispatch.dylib 0x0000000117a13ff9 _dispatch_workloop_worker_thread + 626
30 libsystem_pthread.dylib 0x00007fff51bfd611 _pthread_wqthread + 421
31 libsystem_pthread.dylib 0x00007fff51bfd3fd start_wqthread + 13
)
libc++abi.dylib: terminating with uncaught exception of type NSException
错误告诉你要做什么：
reason: 'threading violation: expected the main thread'
很多时候，当您传递一个闭包时，您可能会在后台线程上被回调。但是，如果您想对 UI 做任何事情，那必须在主线程上完成。我们使用 DispatchQueue.main.async 将一个块传递到主队列并在主线程上异步地 运行，
在
PHPhotoLibrary.requestAuthorization({ (newStatus) in
if newStatus == PHAuthorizationStatus.authorized {
self.showPhotoActionSheet()
}
})
你需要分派到主线程
PHPhotoLibrary.requestAuthorization({ (newStatus) in
if newStatus == PHAuthorizationStatus.authorized {
DispatchQueue.main.async {
self.showPhotoActionSheet()
}
}
})
您似乎正在后台调用 checkPermission。如果是这样，您还需要将调用包装到：
self.showPhotoActionSheet()
从调用堆栈来看——这看起来可能是您遇到问题的地方。
我遇到了一个问题，当用户点击个人资料图片将他们的照片上传到应用程序时，我们的应用程序崩溃了。该应用程序向用户发送授权请求，点击 "allow" 按钮后立即发生崩溃。
也许相关信息是这不是根视图控制器。注册过程在同一个 Storyboard 上有一系列页面。这发生在我需要请求 不是 主根控制器的权限的任何页面上。
我试图将 PhotoAuthorization 代码块放入 DispatchQueue.main.async，但这似乎不起作用。这是前开发人员的遗留代码，所以我仍在努力修复一些东西。
疑似导致应用崩溃的代码块：
func checkPermission() {
let photoAuthStatus = PHPhotoLibrary.authorizationStatus()
switch photoAuthStatus {
case .authorized:
self.showPhotoActionSheet()
case .notDetermined:
PHPhotoLibrary.requestAuthorization({ (newStatus) in
if newStatus == PHAuthorizationStatus.authorized {
self.showPhotoActionSheet()
}
})
case .restricted:
showPermissionRequestReason()
case .denied:
showPermissionRequestReason()
}
}
func showPhotoActionSheet() {
let actionSheet = YoutubeActionController()
actionSheet.addAction(Action(ActionData(title: "Take Photo", image: UIImage(named: "ic_photo_camera")!), style: .default, handler: { action in
if UIImagePickerController.isSourceTypeAvailable(.camera) {
self.imagePicker.sourceType = .camera
self.imagePicker.allowsEditing = true
self.present(self.imagePicker, animated: true, completion: nil)
}
}))
actionSheet.addAction(Action(ActionData(title: "Choose from Camera Roll", image: UIImage(named: "ic_photo_album")!), style: .default, handler: { action in
if UIImagePickerController.isSourceTypeAvailable(.savedPhotosAlbum) {
self.imagePicker.sourceType = .savedPhotosAlbum
self.imagePicker.allowsEditing = true
self.present(self.imagePicker, animated: true, completion: nil)
}
}))
actionSheet.addAction(Action(ActionData(title: "Cancel", image: UIImage(named: "ic_cancel")!), style: .cancel, handler: nil))
present(actionSheet, animated: true, completion: nil)
}
找到下面的回溯。任何帮助是极大的赞赏！
2020-01-23 13:39:23.878772+0000 ***[89799:17598462] *** Assertion failure in -[FBSSerialQueue assertOnQueue], /BuildRoot/Library/Caches/com.apple.xbs/Sources/FrontBoardServices_Sim/FrontBoard-626.2/FrontBoardServices/FBSSerialQueue.m:98
2020-01-23 13:39:23.990535+0000 ***[89799:17598462] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'threading violation: expected the main thread'
*** First throw call stack:
(
0 CoreFoundation 0x0000000115f7102e __exceptionPreprocess + 350
1 libobjc.A.dylib 0x0000000115ddeb20 objc_exception_throw + 48
2 CoreFoundation 0x0000000115f70da8 +[NSException raise:format:arguments:] + 88
3 Foundation 0x000000010f613b61 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 191
4 FrontBoardServices 0x000000011c344a8b -[FBSSerialQueue assertOnQueue] + 236
5 FrontBoardServices 0x000000011c2f77b9 -[FBSSceneImpl updateClientSettings:withTransitionContext:] + 70
6 FrontBoardServices 0x000000011c2f7a04 -[FBSSceneImpl updateClientSettingsWithTransitionBlock:] + 154
7 FrontBoardServices 0x000000011c2f7929 -[FBSSceneImpl updateClientSettingsWithBlock:] + 110
8 UIKitCore 0x00000001200c7aa0 -[FBSScene(UIApp) updateUIClientSettingsWithBlock:] + 160
9 UIKitCore 0x000000011fcbf5f6 -[_UISystemAppearanceManager updateScreenEdgesDeferringSystemGestures] + 374
10 UIKitCore 0x000000011ff229e2 __70-[UIViewController setNeedsUpdateOfScreenEdgesDeferringSystemGestures]_block_invoke_2 + 118
11 UIKitCore 0x000000011ff00cb5 -[UIViewController _updateSystemAppearanceWithRecursionBlock:action:] + 295
12 UIKitCore 0x000000011ff22629 -[UIViewController _setPresentedStatusBarViewController:] + 220
13 UIKitCore 0x000000011ff129c3 -[UIViewController _presentViewController:modalSourceViewController:presentationController:animationController:interactionController:completion:] + 1381
14 UIKitCore 0x000000011ff143c6 -[UIViewController _presentViewController:withAnimationController:completion:] + 4349
15 UIKitCore 0x000000011ff16c47 __63-[UIViewController _presentViewController:animated:completion:]_block_invoke + 98
16 UIKitCore 0x000000011ff1715f -[UIViewController _performCoordinatedPresentOrDismiss:animated:] + 511
17 UIKitCore 0x000000011ff16ba5 -[UIViewController _presentViewController:animated:completion:] + 187
18 UIKitCore 0x000000011ff16e0c -[UIViewController presentViewController:animated:completion:] + 150
19 *** 0x000000010dc472ca $s14***26RegistrationViewControllerC20showPhotoActionSheetyyF + 2522
20 *** 0x000000010dc462b9 $s14***26RegistrationViewControllerC15checkPermissionyyFySo21PHAuthorizationStatusVcfU_ + 201
21 *** 0x000000010dc46355 $sSo21PHAuthorizationStatusVIegy_ABIeyBy_TR + 53
22 Photos 0x0000000116a72643 __39+[PHPhotoLibrary requestAuthorization:]_block_invoke + 52
23 AssetsLibraryServices 0x000000013927ff7e __79-[PLPrivacy _isPhotosAccessAllowedWithScope:forceHandler:accessAllowedHandler:]_block_invoke.14 + 501
24 AssetsLibraryServices 0x000000013924b60c __pl_dispatch_async_block_invoke + 25
25 libdispatch.dylib 0x0000000117a02848 _dispatch_call_block_and_release + 12
26 libdispatch.dylib 0x0000000117a037b9 _dispatch_client_callout + 8
27 libdispatch.dylib 0x0000000117a09526 _dispatch_lane_serial_drain + 707
28 libdispatch.dylib 0x0000000117a09f5c _dispatch_lane_invoke + 388
29 libdispatch.dylib 0x0000000117a13ff9 _dispatch_workloop_worker_thread + 626
30 libsystem_pthread.dylib 0x00007fff51bfd611 _pthread_wqthread + 421
31 libsystem_pthread.dylib 0x00007fff51bfd3fd start_wqthread + 13
)
libc++abi.dylib: terminating with uncaught exception of type NSException
错误告诉你要做什么：
reason: 'threading violation: expected the main thread'
很多时候，当您传递一个闭包时，您可能会在后台线程上被回调。但是，如果您想对 UI 做任何事情，那必须在主线程上完成。我们使用 DispatchQueue.main.async 将一个块传递到主队列并在主线程上异步地 运行，
在
PHPhotoLibrary.requestAuthorization({ (newStatus) in
if newStatus == PHAuthorizationStatus.authorized {
self.showPhotoActionSheet()
}
})
你需要分派到主线程
PHPhotoLibrary.requestAuthorization({ (newStatus) in
if newStatus == PHAuthorizationStatus.authorized {
DispatchQueue.main.async {
self.showPhotoActionSheet()
}
}
})
您似乎正在后台调用 checkPermission。如果是这样，您还需要将调用包装到：
self.showPhotoActionSheet()
从调用堆栈来看——这看起来可能是您遇到问题的地方。