React Native ios：应用程序在发送到后台时崩溃

Question

我有一个React Native ios应用程序。 我正试图解决一个问题，但我还是无法解决。

当我按下主页按钮两次或每当我传递到另一个应用程序将应用程序发送到后台时，应用程序崩溃。 你可以在下面看到视频;

您可以通过此链接查看错误图像

http://sendvid.com/gwoqfybp

错误：

2016-11-08 20:51:58.874 NewsApp[33572:686315] -[RCTDeviceExtension orientationDidChange:]: unrecognized selector sent to instance 0x60000001d100
2016-11-08 20:51:58.884 NewsApp[33572:686315] WARNING: GoogleAnalytics 3.15 void GAIUncaughtExceptionHandler(NSException *) (GAIUncaughtExceptionHandler.m:48): Uncaught exception: -[RCTDeviceExtension orientationDidChange:]: unrecognized selector sent to instance 0x60000001d100
2016-11-08 20:51:59.018 NewsApp[33572:686315] invalid mode 'kCFRunLoopCommonModes' provided to CFRunLoopRunSpecific - break on _CFRunLoopError_RunCalledWithInvalidMode to debug. This message will only appear once per execution.
2016-11-08 20:51:59.961503 NewsApp[33572:689959] [] __nw_connection_get_connected_socket_block_invoke 210 Connection has no connected handler
2016-11-08 20:52:03.298381 NewsApp[33572:689437] [] __nw_connection_get_connected_socket_block_invoke 211 Connection has no connected handler
2016-11-08 20:52:04.005 NewsApp[33572:686315] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[RCTDeviceExtension orientationDidChange:]: unrecognized selector sent to instance 0x60000001d100'
*** First throw call stack:
(
    0   CoreFoundation                      0x000000010789f34b __exceptionPreprocess + 171
    1   libobjc.A.dylib                     0x0000000106ccb21e objc_exception_throw + 48
    2   CoreFoundation                      0x000000010790ef34 -[NSObject(NSObject) doesNotRecognizeSelector:] + 132
    3   CoreFoundation                      0x0000000107824c15 ___forwarding___ + 1013
    4   CoreFoundation                      0x0000000107824798 _CF_forwarding_prep_0 + 120
    5   CoreFoundation                      0x000000010783d19c __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 12
    6   CoreFoundation                      0x000000010783d09b _CFXRegistrationPost + 427
    7   CoreFoundation                      0x000000010783ce02 ___CFXNotificationPost_block_invoke + 50
    8   CoreFoundation                      0x00000001077ffea2 -[_CFXNotificationRegistrar find:object:observer:enumerator:] + 2018
    9   CoreFoundation                      0x00000001077fef3b _CFXNotificationPost + 667
    10  Foundation                          0x00000001067930ab -[NSNotificationCenter postNotificationName:object:userInfo:] + 66
    11  UIKit                               0x0000000108d24e3e -[UIApplication _stopDeactivatingForReason:] + 633
    12  UIKit                               0x0000000108d2c712 __62-[UIApplication _sceneSettingsPostLifecycleEventDiffInspector]_block_invoke.1251 + 107
    13  FrontBoardServices                  0x000000010bc1a7f5 __52-[FBSSettingsDiffInspector inspectDiff:withContext:]_block_invoke.27 + 231
    14  Foundation                          0x00000001067f7199 __NSIndexSetEnumerate + 1027
    15  BaseBoard                           0x000000010be05acb -[BSSettingsDiff inspectChangesWithBlock:] + 116
    16  FrontBoardServices                  0x000000010bc14354 -[FBSSettingsDiff inspectOtherChangesWithBlock:] + 92
    17  FrontBoardServices                  0x000000010bc1a598 -[FBSSettingsDiffInspector inspectDiff:withContext:] + 332
    18  UIKit                               0x0000000108d2d1a8 __70-[UIApplication scene:didUpdateWithDiff:transitionContext:completion:]_block_invoke + 201
    19  UIKit                               0x0000000108d2cdea -[UIApplication scene:didUpdateWithDiff:transitionContext:completion:] + 1060
    20  UIKit                               0x0000000109258676 -[UIApplicationSceneClientAgent scene:handleEvent:withCompletion:] + 492
    21  FrontBoardServices                  0x000000010bc0302e __80-[FBSSceneImpl updater:didUpdateSettings:withDiff:transitionContext:completion:]_block_invoke.376 + 204
    22  FrontBoardServices                  0x000000010bc31723 __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ + 24
    23  FrontBoardServices                  0x000000010bc3159c -[FBSSerialQueue _performNext] + 189
    24  FrontBoardServices                  0x000000010bc31925 -[FBSSerialQueue _performNextFromRunLoopSource] + 45
    25  CoreFoundation                      0x0000000107844311 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
    26  CoreFoundation                      0x000000010782959c __CFRunLoopDoSources0 + 556
    27  CoreFoundation                      0x0000000107828a86 __CFRunLoopRun + 918
    28  CoreFoundation                      0x0000000107828494 CFRunLoopRunSpecific + 420
    29  GraphicsServices                    0x000000010b819a6f GSEventRunModal + 161
    30  UIKit                               0x0000000108d2f964 UIApplicationMain + 159
    31  NewsApp                             0x0000000102822dcf main + 111
    32  libdyld.dylib                       0x000000010a70668d start + 1
    33  ???                                 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb) 

Answer 1

您需要更改应用程序状态，并确保没有正在运行的进程，如不在后台运行的推送通知。 尝试发布正在运行的代码，我将尝试更改我的答案。

getInitialState: function() {
  return {
    currentAppState: AppState.currentState,
  };
},
componentDidMount: function() {
  AppState.addEventListener('change', this._handleAppStateChange);
},
componentWillUnmount: function() {
  AppState.removeEventListener('change', this._handleAppStateChange);
},
_handleAppStateChange: function(currentAppState) {
  this.setState({ currentAppState, });
},
render: function() {
  return (
    <Text>Current state is: {this.state.currentAppState}</Text>
  );
},

阅读更多内容以获取完整的示例和文档https://facebook.github.io/react-native/docs/appstate.html