【报Bug】打包到iOS，切换输入框导致页面无法响应

详细问题描述
h5使用h5+打包到iOS，界面上有两个输入框，点击第一个唤起输入法软键盘，在软键盘未关闭的情况下点击第二个输入框则有较大的概率导致整个界面失去响应（无法接受触摸事件，但不会闪退）

联系方式
[QQ] 707488185

错误信息

 2018-05-08 16:42:13.936265+0800 demo[23162:5397404] API error: <_UIKBCompatInputView: 0x1026df100; frame = (0 0; 0 0); layer = <CALayer: 0x10aec1310>> returned 0 width, assuming UIViewNoIntrinsicMetric  

2018-05-08 16:42:13.936503+0800 demo[23162:5397404] API error: <_UIKBCompatInputView: 0x1026df100; frame = (0 0; 0 0); layer = <CALayer: 0x10aec1310>> returned 0 width, assuming UIViewNoIntrinsicMetric  

2018-05-08 16:42:14.176180+0800 demo[23162:5397404] [LayoutConstraints] Unable to simultaneously satisfy constraints.  

Probably at least one of the constraints in the following list is one you don't want.   

Try this:   

(1) look at each constraint and try to figure out which you don't expect;   

(2) find the code that added the unwanted constraint or constraints and fix it.   

(Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)   

(  

"<NSAutoresizingMaskLayoutConstraint:0x10b2d8650 h=-&- v=-&- _UIToolbarContentView:0x10b60fdb0.width == UIToolbar:0x10a411560.width (active)>",  

"<NSLayoutConstraint:0x10ba373c0 H:|-(0)-[_UIButtonBarStackView:0x10a83a410] (active, names: '|':_UIToolbarContentView:0x10b60fdb0 )>",  

"<NSLayoutConstraint:0x10b74e2d0 _UIButtonBarStackView:0x10a83a410.trailing == _UIToolbarContentView:0x10b60fdb0.trailing + 8 (active)>",  

"<NSLayoutConstraint:0x106229eb0 H:|-(0)-[_UIModernBarButton:0x10ba49da0] (active, names: '|':_UIButtonBarButton:0x10b736680 )>",  

"<NSLayoutConstraint:0x1027bd7e0 H:[_UIModernBarButton:0x10ba49da0]-(>=8)-| (active, names: '|':_UIButtonBarButton:0x10b736680 )>",  

"<NSLayoutConstraint:0x109a10de0 H:|-(>=5)-[_UIModernBarButton:0x10bd6f570] (active, names: '|':_UIButtonBarButton:0x10b7c8b10 )>",  

"<NSLayoutConstraint:0x10b6ae030 H:[_UIModernBarButton:0x10bd6f570]-(>=5)-| (active, names: '|':_UIButtonBarButton:0x10b7c8b10 )>",  

"<NSLayoutConstraint:0x10bd87f10 H:|-(8)-[_UIModernBarButton:0x10ae00720'\U5b8c\U6210'] (active, names: '|':_UIButtonBarButton:0x102663280 )>",  

"<NSLayoutConstraint:0x10b5a5c80 H:[_UIModernBarButton:0x10ae00720'\U5b8c\U6210']-(0)-| (active, names: '|':_UIButtonBarButton:0x102663280 )>",  

"<NSLayoutConstraint:0x10b65eea0 'UISV-canvas-connection' UILayoutGuide:0x10b7802a0'UIViewLayoutMarginsGuide'.leading == _UIButtonBarButton:0x10b736680.leading (active)>",  

"<NSLayoutConstraint:0x10aea7810 'UISV-canvas-connection' UILayoutGuide:0x10b7802a0'UIViewLayoutMarginsGuide'.trailing == _UIButtonBarButton:0x102663280.trailing (active)>",  

"<NSLayoutConstraint:0x10c35d840 'UISV-spacing' H:[_UIButtonBarButton:0x10b736680]-(0)-[UIView:0x10a4ee1e0] (active)>",  

"<NSLayoutConstraint:0x10a83eaa0 'UISV-spacing' H:[UIView:0x10a4ee1e0]-(0)-[_UIButtonBarButton:0x10b7c8b10] (active)>",  

"<NSLayoutConstraint:0x10a83eaf0 'UISV-spacing' H:[_UIButtonBarButton:0x10b7c8b10]-(0)-[UIView:0x10bb782a0] (active)>",  

"<NSLayoutConstraint:0x10bb0e970 'UISV-spacing' H:[UIView:0x10bb782a0]-(0)-[_UIButtonBarButton:0x102663280] (active)>",  

"<NSLayoutConstraint:0x109aa8380 'UIView-Encapsulated-Layout-Width' UIToolbar:0x10a411560.width == 0 (active)>",  

"<NSLayoutConstraint:0x10b6ae4b0 'UIView-leftMargin-guide-constraint' H:|-(0)-UILayoutGuide:0x10b7802a0'UIViewLayoutMarginsGuide' (active, names: '|':_UIButtonBarStackView:0x10a83a410 )>",  

"<NSLayoutConstraint:0x10b6831f0 'UIView-rightMargin-guide-constraint' H:[UILayoutGuide:0x10b7802a0'UIViewLayoutMarginsGuide']-(0)-|(LTR) (active, names: '|':_UIButtonBarStackView:0x10a83a410 )>"  

)  

Will attempt to recover by breaking constraint   

<NSLayoutConstraint:0x1027bd7e0 H:[_UIModernBarButton:0x10ba49da0]-(>=8)-| (active, names: '|':_UIButtonBarButton:0x10b736680 )>  

Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.  

The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful.