Masonry中遇到的一个的问题

2017-05-09 10:30:51.969437+0800 [35586:2135000] [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. 

(

    "<MASLayoutConstraint:0x6080008a80a0 TextView:0x7f923e015000.height == 0>",

    "<MASLayoutConstraint:0x6080002a9a20 TextView:0x7f923e015000.height == 95>"

)

Will attempt to recover by breaking constraint 

<MASLayoutConstraint:0x6080002a9a20 TextView:0x7f923e015000.height == 95>

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.

由于使用的

mas_makeConstraints这个造成切换布局错误，建议使用

mas_updateConstraints，就行