关于使用UIMenuController 的问题，ViewController 属性 inputView 引起异常。

[masakapa]

在让WZMChatTextMessageCell 的label 支持UIMenuController 功能时，在高版本（没有全部测试，iOS 15是这样）iOS 中，会弹出一个灰色的多余inputwindow 覆盖当前window；在低版本（iOS 12）中，直接崩溃，崩溃日志类似为： Terminating app due to uncaught exception 'UIViewControllerHierarchyInconsistency', reason: 'child view controller:<UICompatibilityInputViewController: > should have parent view controller:<: **> but requested parent is:<UIInputWindowController: **>'

找到问题原因： Your view controller probably has a property named inputView that is merely a subview, not an inputView as UIResponder interface expects it to be.

Starting with iOS 8 they check that UIResponder's inputView has no parent.

解决方法为：修改 WZMChatViewController 中的 inputView 属性名称，如 wzmInputView。显示就正常了。

[xiaoyi3699]

thank you！我去改一下