presentingViewController 是不是与presentingViewController 一起旋转

Posted 2023-03-13

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【中文标题】presentingViewController 是不是与presentingViewController 一起旋转【英文标题】：Does presentingViewController rotate with presentedViewControllerpresentingViewController 是否与presentingViewController 一起旋转 【发布时间】：2015-08-03 16:03:08 【问题描述】：

我的项目设置支持纵向和横向。但是，我只希望一个呈现的视图控制器（比如视图控制器 A）能够旋转。我用

override func shouldAutorotate() -> Bool 
    return false


override func supportedInterfaceOrientations() -> Int 
    return Int(UIInterfaceOrientationMask.Portrait.rawValue)

在其他视图控制器中禁用旋转。有用。但是，当 A 以模态方式呈现并旋转时，呈现的视图控制器（比如视图控制器 B）会报告：

2015-08-03 23:34:06.000 Adjimu[4161:181458] 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:0x7ff055858cd0 V:[UIView:0x7ff055858aa0(1)]>",
    "<NSLayoutConstraint:0x7ff055856610 UIScrollView:0x7ff055855e20.width == 1.77778*UIScrollView:0x7ff055855e20.height>",
    "<NSLayoutConstraint:0x7ff05585a180 H:|-(0)-[UIScrollView:0x7ff055855e20]   (Names: '|':UIView:0x7ff055858970 )>",
    "<NSLayoutConstraint:0x7ff05585a1d0 V:|-(0)-[UIScrollView:0x7ff055855e20]   (Names: '|':UIView:0x7ff055858970 )>",
    "<NSLayoutConstraint:0x7ff05585a220 H:[UIScrollView:0x7ff055855e20]-(0)-|   (Names: '|':UIView:0x7ff055858970 )>",
    "<NSLayoutConstraint:0x7ff05585a310 V:[UIScrollView:0x7ff055855e20]-(10)-[UILabel:0x7ff05584ea40'Every Child Needs a Famil...']>",
    "<NSLayoutConstraint:0x7ff05585a400 V:[UILabel:0x7ff05584ea40'Every Child Needs a Famil...']-(5)-[UIButton:0x7ff055846200]>",
    "<NSLayoutConstraint:0x7ff05585a720 V:[UIButton:0x7ff055846200]-(5)-[UIView:0x7ff055858aa0]>",
    "<NSLayoutConstraint:0x7ff05585a810 V:[UIView:0x7ff055858aa0]-(0)-[UITableView:0x7ff05603c800]>",
    "<NSLayoutConstraint:0x7ff05585a860 V:[UITableView:0x7ff05603c800]-(0)-[_UILayoutGuide:0x7ff0558599f0]>",
    "<_UILayoutSupportConstraint:0x7ff053dc5570 V:[_UILayoutGuide:0x7ff0558599f0(0)]>",
    "<_UILayoutSupportConstraint:0x7ff053db64f0 _UILayoutGuide:0x7ff0558599f0.bottom == UIView:0x7ff055858970.bottom>",
    "<NSLayoutConstraint:0x7ff05585eac0 'UIView-Encapsulated-Layout-Width' H:[UIView:0x7ff055858970(667)]>",
    "<NSLayoutConstraint:0x7ff05585eb10 'UIView-Encapsulated-Layout-Height' V:[UIView:0x7ff055858970(262)]>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x7ff055858cd0 V:[UIView:0x7ff055858aa0(1)]>

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.
2015-08-03 23:34:06.002 Adjimu[4161:181458] 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:0x7ff055856610 UIScrollView:0x7ff055855e20.width == 1.77778*UIScrollView:0x7ff055855e20.height>",
    "<NSLayoutConstraint:0x7ff05585a180 H:|-(0)-[UIScrollView:0x7ff055855e20]   (Names: '|':UIView:0x7ff055858970 )>",
    "<NSLayoutConstraint:0x7ff05585a1d0 V:|-(0)-[UIScrollView:0x7ff055855e20]   (Names: '|':UIView:0x7ff055858970 )>",
    "<NSLayoutConstraint:0x7ff05585a220 H:[UIScrollView:0x7ff055855e20]-(0)-|   (Names: '|':UIView:0x7ff055858970 )>",
    "<NSLayoutConstraint:0x7ff05585a310 V:[UIScrollView:0x7ff055855e20]-(10)-[UILabel:0x7ff05584ea40'Every Child Needs a Famil...']>",
    "<NSLayoutConstraint:0x7ff05585a400 V:[UILabel:0x7ff05584ea40'Every Child Needs a Famil...']-(5)-[UIButton:0x7ff055846200]>",
    "<NSLayoutConstraint:0x7ff05585a720 V:[UIButton:0x7ff055846200]-(5)-[UIView:0x7ff055858aa0]>",
    "<NSLayoutConstraint:0x7ff05585a810 V:[UIView:0x7ff055858aa0]-(0)-[UITableView:0x7ff05603c800]>",
    "<NSLayoutConstraint:0x7ff05585a860 V:[UITableView:0x7ff05603c800]-(0)-[_UILayoutGuide:0x7ff0558599f0]>",
    "<_UILayoutSupportConstraint:0x7ff053dc5570 V:[_UILayoutGuide:0x7ff0558599f0(0)]>",
    "<_UILayoutSupportConstraint:0x7ff053db64f0 _UILayoutGuide:0x7ff0558599f0.bottom == UIView:0x7ff055858970.bottom>",
    "<NSLayoutConstraint:0x7ff05585eac0 'UIView-Encapsulated-Layout-Width' H:[UIView:0x7ff055858970(667)]>",
    "<NSLayoutConstraint:0x7ff05585eb10 'UIView-Encapsulated-Layout-Height' V:[UIView:0x7ff055858970(262)]>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x7ff055856610 UIScrollView:0x7ff055855e20.width == 1.77778*UIScrollView:0x7ff055855e20.height>

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.

我在 B 中使用自动布局，我不希望它被旋转。我做了一些实验，这些约束错误与旋转时的错误完全相同。我怀疑 B 也被旋转了，尽管它是不可见的。

我被这个问题困扰了几天。我真的很想知道为什么会发生这种情况以及如何解决这个问题？

【问题讨论】：

【参考方案1】：

也许this 的回答可能会对你有所帮助。

引文（答案的第4段）：