在Xcode的调试控制台输出中禁用自动布局约束错误消息

Question

有没有办法(暂时)禁用自动布局错误/警告消息:

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) 
(
    "<NSLayoutConstraint:0x170098420 H:[UIView:0x15c62c100(2)]>",
    "<NSLayoutConstraint:0x170098600 UIView:0x15c6294f0.leading == UIView:0x15c628d40.leadingMargin - 8>",
    "<NSLayoutConstraint:0x170098650 H:[UIView:0x15c6294f0]-(0)-[UIView:0x15c62b750]>",
    "<NSLayoutConstraint:0x1700986a0 UIView:0x15c62b750.width == UIView:0x15c6294f0.width>",
    "<NSLayoutConstraint:0x1700986f0 UIView:0x15c628d40.trailingMargin == UIView:0x15c62b750.trailing - 8>",
    "<NSLayoutConstraint:0x170098880 H:[UIView:0x15c6294f0]-(0)-[UIView:0x15c62c100]>",
    "<NSLayoutConstraint:0x1700988d0 UIView:0x15c628d40.centerX == UIView:0x15c62c100.centerX + 1>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x170098420 H:[UIView:0x15c62c100(2)]>

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.

Answer 1

做了一些反编译,实际上有一种方法:

对于Swift 3

 UserDefaults.standard.setValue(false, forKey: "_UIConstraintBasedLayoutLogUnsatisfiable")

Objective-C的

[[NSUserDefaults standardUserDefaults] setValue:@(NO) forKey:@"_UIConstraintBasedLayoutLogUnsatisfiable"];

现在,您只会收到"_UIConstraintBasedLayoutLogUnsatisfiable is OFF"的通知.

对于阅读此内容的任何人的强制性提醒:这应该是最后的手段,有关调试和修复约束问题的提示,请参阅WWDC的"自动布局之谜"会话:第1 部分和第2部分.

Answer 2

另一种选择是暂时将-_UIConstraintBasedLayoutLogUnsatisfiable NO（注意破折号）放入Arguments Passed On Launch菜单，在Product -> Scheme -> Edit Scheme... -> Run -> Arguments选项卡下（您也可以按?+ ?+打开此菜单<），如下所示：

Answer 3

Swift 3.0解决方案:

//Hide Autolayout Warning

UserDefaults.standard.set(false, forKey: "_UIConstraintBasedLayoutLogUnsatisfiable")

Answer 4

对于任何想知道如何使用AppKit / Cocoa进行macOS / osx的用户

UserDefaults.standard.set(false, forKey: "NSConstraintBasedLayoutLogUnsatisfiable")
UserDefaults.standard.set(false, forKey: "__NSConstraintBasedLayoutLogUnsatisfiable")