Question

我在UITextView中有一个UIView。在viewLoad中，我在UIPickerView内有UIAlertView “确定”按钮。当我从选择器中选择任何值并单击“确定”时，我需要使 UITextView处于活动状态。
为此我写了[<myTextView> becomeFirstResponder]; UITextView委托方法。只要此方法执行，就可以调用 textViewShouldBeginEditing 委托方法。这个方法正确执行，我在这里返回TRUE，但之后执行返回到行[<myTextView> becomeFirstResponder];，然后应用程序崩溃。
UIAlertView委托方法如下：

- (void)customIOS7dialogButtonTouchUpInside: (CustomIOS7AlertView *)alertView clickedButtonAtIndex: (NSInteger)buttonIndex
{
    NSLog(@"Button at position %d is clicked on alertView %d.", (int)buttonIndex, (int)[alertView tag]);
    [alertView close];
    [self.updateTV becomeFirstResponder];
}

以上代码应用程序崩溃[self.updateTV becomeFirstResponder];
崩溃日志如下所示：

2016-12-09 11:47:53.069049 oGoing[250:11235] self.viewControllers lastObject ==<OGAddUpdateViewController: 0x17bebe00>
2016-12-09 11:47:53.069451 oGoing[250:11235] self.viewControllers lastObject ==<OGAddUpdateViewController: 0x17bebe00>
2016-12-09 11:47:53.070530 oGoing[250:11235] self.viewControllers lastObject ==<OGAddUpdateViewController: 0x17bebe00>
2016-12-09 11:47:53.070970 oGoing[250:11235] self.viewControllers lastObject ==<OGAddUpdateViewController: 0x17bebe00>
2016-12-09 11:47:53.071223 oGoing[250:11235] self.viewControllers lastObject ==<OGAddUpdateViewController: 0x17bebe00>
2016-12-09 11:47:53.072122 oGoing[250:11235] self.viewControllers lastObject ==<OGAddUpdateViewController: 0x17bebe00>
2016-12-09 11:47:53.132574 oGoing[250:11235] [MC] System group container for systemgroup.com.apple.configurationprofiles path is /private/var/containers/Shared/SystemGroup/systemgroup.com.apple.configurationprofiles
2016-12-09 11:47:53.136872 oGoing[250:11235] [MC] Reading from public effective user settings.
2016-12-09 11:47:53.370813 oGoing[250:11235] self.viewControllers lastObject ==<OGAddUpdateViewController: 0x17bebe00>
2016-12-09 11:47:53.372515 oGoing[250:11235] self.viewControllers lastObject ==<OGAddUpdateViewController: 0x17bebe00>
2016-12-09 11:47:53.372781 oGoing[250:11235] self.viewControllers lastObject ==<OGAddUpdateViewController: 0x17bebe00>
2016-12-09 11:47:53.373559 oGoing[250:11235] self.viewControllers lastObject ==<OGAddUpdateViewController: 0x17bebe00>
2016-12-09 11:47:53.373942 oGoing[250:11235] self.viewControllers lastObject ==<OGAddUpdateViewController: 0x17bebe00>
2016-12-09 11:47:53.374133 oGoing[250:11235] self.viewControllers lastObject ==<OGAddUpdateViewController: 0x17bebe00>
2016-12-09 11:47:53.374921 oGoing[250:11235] self.viewControllers lastObject ==<OGAddUpdateViewController: 0x17bebe00>
2016-12-09 11:47:53.477836 oGoing[250:11235] *** Terminating app due to uncaught exception 'UIViewControllerHierarchyInconsistency', reason: 'child view controller:<UICompatibilityInputViewController: 0x6e208f0> should have parent view controller:<OGAddUpdateViewController: 0x17bebe00> but requested parent is:<UIInputWindowController: 0x17b81400>'
*** First throw call stack:
(0x1c38de07 0x1b5f3077 0x1c38dd4d 0x2146dd8b 0x21d43ba3 0x21d448cd 0x213e11bb 0x21d44655 0x21d3d1c9 0x21497b8f 0x213f9153 0x21456e15 0x21457181 0x2157ff83 0x1b04f5 0x287bb5 0x2140895d 0x214088eb 0x213f2a87 0x21408213 0x21407d5f 0x21402947 0x213d37c9 0x21b73c39 0x21b6d8db 0x1c349c8b 0x1c349795 0x1c347a6b 0x1c297073 0x1c296e81 0x1da3fbfd 0x2143eacf 0x21439201 0xed585 0x1ba6250b)
libc++abi.dylib: terminating with uncaught exception of type NSException

帮助我解决这个问题。我从2天开始就陷入困境。
我的项目已经在AppStore上了，而且工作正常。但是当我在iOS 10设备中运行它时会产生这个问题。

提前感谢

Answer 1

尝试这个它正在工作......

之前我遇到过这个问题。

<强>问题：

您必须确保要分配给inputView或inputAccessoryView的视图不属于任何父视图。当您从ViewController中的xib创建这些视图时，默认情况下它们被设置为superview的子视图。

解决方案提示：

在您将分配给inputView或inputAccessoryView的视图上使用removeFromSuperview方法

来自：https://stackoverflow.com/a/25882277/3901620

来自xib：

[self.DatePickerView removeFromSuperview];
[Textfield setInputView:self.DatePickerView];
[Textfield setInputView:self.DatePickerView];

调用becomeFirstResponder时，UITextView使应用程序崩溃

1 个答案: