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[已解决]swift让当前视图ViewController消失

Swift crifan 142浏览 0评论

用了:

            self.dismissViewControllerAnimated(true, completion: nil)

结果出错:

2015-12-06 16:13:39.163 JianDao[6147:179128] *** Assertion failure in -[UIApplication _cachedSystemAnimationFenceCreatingIfNecessary:], /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit_Sim/UIKit-3512.29.5/UIApplication.m:1698
2015-12-06 16:13:39.178 JianDao[6147:179128] *** Terminating app due to uncaught exception ‘NSInternalInconsistencyException’, reason: ‘accessing _cachedSystemAnimationFence requires the main thread’
*** First throw call stack:
(
0   CoreFoundation                      0x00000001060a7f45 __exceptionPreprocess + 165
1   libobjc.A.dylib                     0x0000000105340deb objc_exception_throw + 48
2   CoreFoundation                      0x00000001060a7daa +[NSException raise:format:arguments:] + 106
3   Foundation                          0x0000000104f8d5ee -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 198
4   UIKit                               0x0000000106badbfd -[UIApplication _cachedSystemAnimationFenceCreatingIfNecessary:] + 210
5   UIKit                               0x0000000106c315e2 +[UIWindow _synchronizeDrawingWithPreCommitHandler:] + 60
6   UIKit                               0x000000010720f2f2 -[UIInputViewAnimationStyle launchAnimation:afterStarted:completion:forHost:fromCurrentPosition:] + 99
7   UIKit                               0x00000001074fdcca -[UIInputWindowController moveFromPlacement:toPlacement:starting:completion:] + 1589
8   UIKit                               0x0000000107505aab __43-[UIInputWindowController setInputViewSet:]_block_invoke1238 + 98
9   UIKit                               0x00000001074f9968 -[UIInputWindowController performOperations:withTemplateNotificationInfo:] + 42
10  UIKit                               0x0000000107505765 -[UIInputWindowController setInputViewSet:] + 1194
11  UIKit                               0x00000001074fd48e -[UIInputWindowController performOperations:withAnimationStyle:] + 50
12  UIKit                               0x0000000107207de5 -[UIPeripheralHost(UIKitInternal) setInputViews:animationStyle:] + 1275
13  UIKit                               0x0000000107209206 -[UIPeripheralHost(UIKitInternal) _restoreInputViewsWithId:animated:] + 326
14  UIKit                               0x0000000106d61b28 -[UIViewController _restoreInputViewsForPresentation] + 268
15  UIKit                               0x0000000106d1d0c5 -[UIPresentationController runTransitionForCurrentState] + 1498
16  UIKit                               0x0000000106d1b48b -[UIPresentationController _dismissWithAnimationController:interactionController:target:didEndSelector:] + 676
17  UIKit                               0x0000000106d6161e -[UIViewController _dismissViewControllerWithAnimationController:interactionController:completion:] + 569
18  UIKit                               0x0000000106d611da -[UIViewController _dismissViewControllerWithTransition:from:completion:] + 995
19  UIKit                               0x0000000106d607bc -[UIViewController dismissViewControllerWithTransition:completion:] + 1273
20  UIKit                               0x0000000106d60523 -[UIViewController dismissViewControllerWithTransition:completion:] + 608
21  UIKit                               0x0000000106d5fc5c -[UIViewController _performCoordinatedPresentOrDismiss:animated:] + 489
22  UIKit                               0x0000000106d63221 -[UIViewController dismissViewControllerAnimated:completion:] + 149
23  JianDao                             0x0000000104977372 _TFC7JianDao30RegisterUsernameViewController23registerJsonDictHandlerfS0_FTSb10extraParasGSqPSs9AnyObject__8jsonDictVS_4JSON_T_ + 578
24  JianDao                             0x00000001049786f0 _TPA + 32
25  JianDao                             0x00000001049bdefe _TTSf2n_n_d_i_n_n_n_n___TFF7JianDao24getUrlRespJsonDict_asyncFTSS10extraParasGSqPSs9AnyObject__19respJsonDictHandlerFTSbGSqPS0___VS_4JSON_T__T_U_FCS_8ResponseT_ + 5102
26  JianDao                             0x00000001049bae9c _TPA__TTSf2n_n_d_i_n_n_n_n___TFF7JianDao24getUrlRespJsonDict_asyncFTSS10extraParasGSqPSs9AnyObject__19respJsonDictHandlerFTSbGSqPS0___VS_4JSON_T__T_U_FCS_8ResponseT_ + 316
27  JianDao                             0x00000001049f3237 _TTRXFo_oC7JianDao8Response_dT__XFo_iS0__iT__ + 23
28  JianDao                             0x00000001049f23e1 _TPA__TTRXFo_oC7JianDao8Response_dT__XFo_iS0__iT__ + 81
29  JianDao                             0x00000001049f3090 _TTRXFo_iC7JianDao8Response_iT__XFo_oS0__dT__ + 32
30  JianDao                             0x00000001049f30fe _TFFC7JianDao4HTTPW8onFinishGSqFCS_8ResponseT__U_FS1_T_ + 94
31  JianDao                             0x00000001049f3237 _TTRXFo_oC7JianDao8Response_dT__XFo_iS0__iT__ + 23
32  JianDao                             0x00000001049f27a1 _TPA__TTRXFo_oC7JianDao8Response_dT__XFo_iS0__iT__31 + 81
33  JianDao                             0x00000001049f124b _TFC7JianDao15DelegateManager10URLSessionfS0_FTCSo12NSURLSession4taskCSo16NSURLSessionTask20didCompleteWithErrorGSqCSo7NSError__T_ + 1723
34  JianDao                             0x00000001049f1340 _TToFC7JianDao15DelegateManager10URLSessionfS0_FTCSo12NSURLSession4taskCSo16NSURLSessionTask20didCompleteWithErrorGSqCSo7NSError__T_ + 96
35  CFNetwork                           0x00000001058d61cf __51-[NSURLSession delegate_task:didCompleteWithError:]_block_invoke170 + 76
36  Foundation                          0x0000000104fb53b8 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 7
37  Foundation                          0x0000000104ef10e5 -[NSBlockOperation main] + 101
38  Foundation                          0x0000000104ed4036 -[__NSOperationInternal _start:] + 646
39  Foundation                          0x0000000104ed3c47 __NSOQSchedule_f + 194
40  libdispatch.dylib                   0x0000000108a3f49b _dispatch_client_callout + 8
41  libdispatch.dylib                   0x0000000108a258ec _dispatch_queue_drain + 2215
42  libdispatch.dylib                   0x0000000108a24e0d _dispatch_queue_invoke + 601
43  libdispatch.dylib                   0x0000000108a27a56 _dispatch_root_queue_drain + 1420
44  libdispatch.dylib                   0x0000000108a274c5 _dispatch_worker_thread3 + 111
45  libsystem_pthread.dylib             0x0000000108d704f2 _pthread_wqthread + 1129
46  libsystem_pthread.dylib             0x0000000108d6e375 start_wqthread + 13
)
libc++abi.dylib: terminating with uncaught exception of type NSException

然后去用变量:

            print("gRegisterPhoneViewController=\(gRegisterPhoneViewController)")
           
print("gRegisterUsernameViewController=\(gRegisterUsernameViewController)")
           
gRegisterPhoneViewController?.dismissViewControllerAnimated(false, completion: nil)
            gRegisterUsernameViewController?.dismissViewControllerAnimated(false, completion: nil)

结果也还是不行:

只能消失掉当前的页面。

上一级的页面没有消失。

swift dismiss parent view

ios – calling parents viewcontroller method when dismissing child viewcontroller – Stack Overflow

ios – how to dismiss view controller in swift? – Stack Overflow

试试:

            dispatch_async(dispatch_get_main_queue(), { () -> Void in
//                gRegisterPhoneViewController.dismissViewControllerAnimated(false, completion: nil)
//                gRegisterUsernameViewController?.dismissViewControllerAnimated(false, completion: nil)
                self.dismissViewControllerAnimated(true, completion: {
                   
self.parentViewController?.dismissViewControllerAnimated(false, completion: nil)
                })
            })

【总结】

后来才发现:

原来之前是搞错了:

gRegisterPhoneViewController

和:

gRegisterUsernameViewController

其实不是当时所使用的VC

当时正在使用的家了navigation的:

gRegisterPhoneNVC和gRegisterUsernameNVC:

var gRegisterPhoneVC:RegisterPhoneViewController = RegisterPhoneViewController()
var gRegisterPhoneNVC:UINavigationController = UINavigationController(rootViewController: gRegisterPhoneVC)

var gRegisterUsernameVC:RegisterUsernameViewController?

var gRegisterUsernameNVC:UINavigationController?

然后去用:

            dispatch_async(dispatch_get_main_queue(), { () -> Void in
                gRegisterPhoneNVC.dismissViewControllerAnimated(false, completion:
                    {
                       
gRegisterPhoneNVC.dismissViewControllerAnimated(false, completion: nil)
                    }
                )
            })

即可实现,在注册完毕后,关闭之前的2层的视图。

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