Ios 无法通过动画同时满足约束_Ios_Swift_Autolayout

Ios 无法通过动画同时满足约束

ios swift

Ios 无法通过动画同时满足约束,ios,swift,autolayout,Ios,Swift,Autolayout,我有一个按钮，按下时，旋转显示其他按钮最初隐藏在它后面使用自动布局按钮添加了以下约束： var tennisButtonHiddenConstraint1 : NSLayoutConstraint? var tennisButtonHiddenConstraint2 : NSLayoutConstraint? var tennisButtonBottomAnchor : NSLayoutConstraint? var tennisButtonRightAnchor : NSLayoutCo

我有一个按钮，按下时，旋转显示其他按钮最初隐藏在它后面使用自动布局

按钮添加了以下约束：

var tennisButtonHiddenConstraint1 : NSLayoutConstraint?
var tennisButtonHiddenConstraint2 : NSLayoutConstraint?
var tennisButtonBottomAnchor : NSLayoutConstraint?
var tennisButtonRightAnchor : NSLayoutConstraint?
var tennisButtonWidthAnchor : NSLayoutConstraint?
var tennisButtonHeightAnchor : NSLayoutConstraint?


func setupViews(){
        self.mapView.addSubview(tennisButton)
        tennisButtonHiddenConstraint1 =  tennisButton.bottomAnchor.constraint(equalTo: self.mapView.bottomAnchor, constant: -50)
        tennisButtonHiddenConstraint1?.isActive = true

        tennisButtonHiddenConstraint2 = tennisButton.centerXAnchor.constraint(equalTo: self.mapView.centerXAnchor)
        tennisButtonHiddenConstraint2?.isActive = true

        tennisButtonRightAnchor =  tennisButton.rightAnchor.constraint(equalTo: self.addEventButton.leftAnchor, constant: -20)
        tennisButtonRightAnchor?.isActive = false

        tennisButtonBottomAnchor = tennisButton.bottomAnchor.constraint(equalTo: self.addEventButton.topAnchor, constant: 20)
        tennisButtonBottomAnchor?.isActive = false

        tennisButtonWidthAnchor  = tennisButton.widthAnchor.constraint(equalToConstant: 66)
        tennisButtonWidthAnchor?.isActive = false
        tennisButtonHeightAnchor  = tennisButton.heightAnchor.constraint(equalToConstant: 66)
        tennisButtonHeightAnchor?.isActive = false

        self.mapView.addSubview(addEventButton)
        addEventButton.bottomAnchor.constraint(equalTo: self.mapView.bottomAnchor, constant: -50).isActive = true
        addEventButton.centerXAnchor.constraint(equalTo: self.mapView.centerXAnchor).isActive = true
        addEventButton.widthAnchor.constraint(equalToConstant: 80).isActive = true
        addEventButton.heightAnchor.constraint(equalToConstant: 80).isActive = true
}

然后动画代码如下所示：

@objc func showAvailableActions(){
    if menuButtonShown == false {
        self.tennisButtonHiddenConstraint1?.isActive = false
        self.tennisButtonHiddenConstraint2?.isActive = false
        self.tennisButtonBottomAnchor?.isActive = true
        self.tennisButtonRightAnchor?.isActive = true
        self.tennisButtonHeightAnchor?.isActive = true
        self.tennisButtonWidthAnchor?.isActive = true
        menuButtonShown = true

        UIView.animate(withDuration: 0.5, animations: {
        self.addEventButton.transform = CGAffineTransform(rotationAngle:  .pi/4)
        })

        UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 1.0, initialSpringVelocity: 1.0, options: .curveEaseInOut, animations: {
            self.view.layoutIfNeeded()
    }, completion: nil)

    }else{

        self.tennisButtonHiddenConstraint1?.isActive = true
        self.tennisButtonHiddenConstraint2?.isActive = true
        self.tennisButtonBottomAnchor?.isActive = false
        self.tennisButtonRightAnchor?.isActive = false
        self.tennisButtonHeightAnchor?.isActive = false
        self.tennisButtonWidthAnchor?.isActive = false
        menuButtonShown = false


        UIView.animate(withDuration: 0.5, animations: {
            self.addEventButton.transform = CGAffineTransform.identity
        })
        UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 1.0, initialSpringVelocity: 1.0, options: .curveEaseInOut, animations: {
            self.view.layoutIfNeeded()
        }, completion: nil)

    }
}

Yoofit[7442:9349648] [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. 
(
    "<NSLayoutConstraint:0x600000a10f50 Yoofit.AddEventButton:0x7f8584c3beb0.height == 80   (active)>",
    "<NSLayoutConstraint:0x600000a17520 UIButton:0x7f8584c3c3e0.bottom == Yoofit.AddEventButton:0x7f8584c3beb0.top + 20   (active)>",
    "<NSLayoutConstraint:0x600000a17750 Yoofit.AddEventButton:0x7f8584c3beb0.bottom == MKMapView:0x7f858505f200.bottom - 50   (active)>",
    "<NSLayoutConstraint:0x600000a6b980 UIButton:0x7f8584c3c3e0.bottom == MKMapView:0x7f858505f200.bottom - 50   (active)>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x600000a10f50 Yoofit.AddEventButton:0x7f8584c3beb0.height == 80   (active)>

Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKitCore/UIView.h> may also be helpful.
2019-07-03 19:51:02.337695+0800 Yoofit[7442:9349648] [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. 
(
    "<NSLayoutConstraint:0x600000a17930 Yoofit.AddEventButton:0x7f8584c3beb0.width == 80   (active)>",
    "<NSLayoutConstraint:0x600000a17430 UIButton:0x7f8584c3c3e0.right == Yoofit.AddEventButton:0x7f8584c3beb0.left - 20   (active)>",
    "<NSLayoutConstraint:0x600000a177f0 Yoofit.AddEventButton:0x7f8584c3beb0.centerX == MKMapView:0x7f858505f200.centerX   (active)>",
    "<NSLayoutConstraint:0x600000a174d0 UIButton:0x7f8584c3c3e0.width == 66   (active)>",
    "<NSLayoutConstraint:0x600000a6bf20 UIButton:0x7f8584c3c3e0.centerX == MKMapView:0x7f858505f200.centerX   (active)>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x600000a17930 Yoofit.AddEventButton:0x7f8584c3beb0.width == 80   (active)>

Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKitCore/UIView.h> may also be helpful.
2019-07-03 19:51:02.341441+0800 Yoofit[7442:9349648] [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. 
(
    "<NSLayoutConstraint:0x600000a17430 UIButton:0x7f8584c3c3e0.right == Yoofit.AddEventButton:0x7f8584c3beb0.left - 20   (active)>",
    "<NSLayoutConstraint:0x600000a177f0 Yoofit.AddEventButton:0x7f8584c3beb0.centerX == MKMapView:0x7f858505f200.centerX   (active)>",
    "<NSLayoutConstraint:0x600000a174d0 UIButton:0x7f8584c3c3e0.width == 66   (active)>",
    "<NSLayoutConstraint:0x600000a6bf20 UIButton:0x7f8584c3c3e0.centerX == MKMapView:0x7f858505f200.centerX   (active)>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x600000a174d0 UIButton:0x7f8584c3c3e0.width == 66   (active)>

Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKitCore/UIView.h> may also be helpful.
2019-07-03 19:51:02.360114+0800 Yoofit[7442:9349648] [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. 
(
    "<NSLayoutConstraint:0x600000a17430 UIButton:0x7f8584c3c3e0.right == Yoofit.AddEventButton:0x7f8584c3beb0.left - 20   (active)>",
    "<NSLayoutConstraint:0x600000a177f0 Yoofit.AddEventButton:0x7f8584c3beb0.centerX == MKMapView:0x7f858505f200.centerX   (active)>",
    "<NSLayoutConstraint:0x600000a6bf20 UIButton:0x7f8584c3c3e0.centerX == MKMapView:0x7f858505f200.centerX   (active)>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x600000a177f0 Yoofit.AddEventButton:0x7f8584c3beb0.centerX == MKMapView:0x7f858505f200.centerX   (active)>

Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKitCore/UIView.h> may also be helpful.

当按钮显示时，一切正常，但当按钮隐藏时，我得到以下信息：

@objc func showAvailableActions(){
    if menuButtonShown == false {
        self.tennisButtonHiddenConstraint1?.isActive = false
        self.tennisButtonHiddenConstraint2?.isActive = false
        self.tennisButtonBottomAnchor?.isActive = true
        self.tennisButtonRightAnchor?.isActive = true
        self.tennisButtonHeightAnchor?.isActive = true
        self.tennisButtonWidthAnchor?.isActive = true
        menuButtonShown = true

        UIView.animate(withDuration: 0.5, animations: {
        self.addEventButton.transform = CGAffineTransform(rotationAngle:  .pi/4)
        })

        UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 1.0, initialSpringVelocity: 1.0, options: .curveEaseInOut, animations: {
            self.view.layoutIfNeeded()
    }, completion: nil)

    }else{

        self.tennisButtonHiddenConstraint1?.isActive = true
        self.tennisButtonHiddenConstraint2?.isActive = true
        self.tennisButtonBottomAnchor?.isActive = false
        self.tennisButtonRightAnchor?.isActive = false
        self.tennisButtonHeightAnchor?.isActive = false
        self.tennisButtonWidthAnchor?.isActive = false
        menuButtonShown = false


        UIView.animate(withDuration: 0.5, animations: {
            self.addEventButton.transform = CGAffineTransform.identity
        })
        UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 1.0, initialSpringVelocity: 1.0, options: .curveEaseInOut, animations: {
            self.view.layoutIfNeeded()
        }, completion: nil)

    }
}

Yoofit[7442:9349648] [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. 
(
    "<NSLayoutConstraint:0x600000a10f50 Yoofit.AddEventButton:0x7f8584c3beb0.height == 80   (active)>",
    "<NSLayoutConstraint:0x600000a17520 UIButton:0x7f8584c3c3e0.bottom == Yoofit.AddEventButton:0x7f8584c3beb0.top + 20   (active)>",
    "<NSLayoutConstraint:0x600000a17750 Yoofit.AddEventButton:0x7f8584c3beb0.bottom == MKMapView:0x7f858505f200.bottom - 50   (active)>",
    "<NSLayoutConstraint:0x600000a6b980 UIButton:0x7f8584c3c3e0.bottom == MKMapView:0x7f858505f200.bottom - 50   (active)>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x600000a10f50 Yoofit.AddEventButton:0x7f8584c3beb0.height == 80   (active)>

Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKitCore/UIView.h> may also be helpful.
2019-07-03 19:51:02.337695+0800 Yoofit[7442:9349648] [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. 
(
    "<NSLayoutConstraint:0x600000a17930 Yoofit.AddEventButton:0x7f8584c3beb0.width == 80   (active)>",
    "<NSLayoutConstraint:0x600000a17430 UIButton:0x7f8584c3c3e0.right == Yoofit.AddEventButton:0x7f8584c3beb0.left - 20   (active)>",
    "<NSLayoutConstraint:0x600000a177f0 Yoofit.AddEventButton:0x7f8584c3beb0.centerX == MKMapView:0x7f858505f200.centerX   (active)>",
    "<NSLayoutConstraint:0x600000a174d0 UIButton:0x7f8584c3c3e0.width == 66   (active)>",
    "<NSLayoutConstraint:0x600000a6bf20 UIButton:0x7f8584c3c3e0.centerX == MKMapView:0x7f858505f200.centerX   (active)>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x600000a17930 Yoofit.AddEventButton:0x7f8584c3beb0.width == 80   (active)>

Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKitCore/UIView.h> may also be helpful.
2019-07-03 19:51:02.341441+0800 Yoofit[7442:9349648] [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. 
(
    "<NSLayoutConstraint:0x600000a17430 UIButton:0x7f8584c3c3e0.right == Yoofit.AddEventButton:0x7f8584c3beb0.left - 20   (active)>",
    "<NSLayoutConstraint:0x600000a177f0 Yoofit.AddEventButton:0x7f8584c3beb0.centerX == MKMapView:0x7f858505f200.centerX   (active)>",
    "<NSLayoutConstraint:0x600000a174d0 UIButton:0x7f8584c3c3e0.width == 66   (active)>",
    "<NSLayoutConstraint:0x600000a6bf20 UIButton:0x7f8584c3c3e0.centerX == MKMapView:0x7f858505f200.centerX   (active)>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x600000a174d0 UIButton:0x7f8584c3c3e0.width == 66   (active)>

Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKitCore/UIView.h> may also be helpful.
2019-07-03 19:51:02.360114+0800 Yoofit[7442:9349648] [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. 
(
    "<NSLayoutConstraint:0x600000a17430 UIButton:0x7f8584c3c3e0.right == Yoofit.AddEventButton:0x7f8584c3beb0.left - 20   (active)>",
    "<NSLayoutConstraint:0x600000a177f0 Yoofit.AddEventButton:0x7f8584c3beb0.centerX == MKMapView:0x7f858505f200.centerX   (active)>",
    "<NSLayoutConstraint:0x600000a6bf20 UIButton:0x7f8584c3c3e0.centerX == MKMapView:0x7f858505f200.centerX   (active)>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x600000a177f0 Yoofit.AddEventButton:0x7f8584c3beb0.centerX == MKMapView:0x7f858505f200.centerX   (active)>

Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKitCore/UIView.h> may also be helpful.

Yoofit[7442:9349648][LayoutConstraints]无法同时满足约束。
可能下面列表中至少有一个约束是您不想要的。
试试这个：
（1） 看看每一个约束，试着找出你不期望的；
（2） 找到添加了不需要的约束的代码，然后修复它。
(
"",
"",
"",
""
)
将尝试通过打破约束进行恢复
在UIViewAlertForUnsatifiableConstraints处创建一个符号断点，以便在调试器中捕获该断点。
中列出的UIView上UIConstraintBasedLayoutDebugging类别中的方法也可能会有所帮助。
2019-07-03 19:51:02.337695+0800 Yoofit[7442:9349648][LayoutConstraints]无法同时满足约束。
可能下面列表中至少有一个约束是您不想要的。
试试这个：
（1） 看看每一个约束，试着找出你不期望的；
（2） 找到添加了不需要的约束的代码，然后修复它。
(
"",
"",
"",
"",
""
)
将尝试通过打破约束进行恢复
在UIViewAlertForUnsatifiableConstraints处创建一个符号断点，以便在调试器中捕获该断点。
中列出的UIView上UIConstraintBasedLayoutDebugging类别中的方法也可能会有所帮助。
2019-07-03 19:51:02.341441+0800 Yoofit[7442:9349648][LayoutConstraints]无法同时满足约束。
可能下面列表中至少有一个约束是您不想要的。
试试这个：
（1） 看看每一个约束，试着找出你不期望的；
（2） 找到添加了不需要的约束的代码，然后修复它。
(
"",
"",
"",
""
)
将尝试通过打破约束进行恢复
在UIViewAlertForUnsatifiableConstraints处创建一个符号断点，以便在调试器中捕获该断点。
中列出的UIView上UIConstraintBasedLayoutDebugging类别中的方法也可能会有所帮助。
2019-07-03 19:51:02.360114+0800 Yoofit[7442:9349648][LayoutConstraints]无法同时满足约束。
可能下面列表中至少有一个约束是您不想要的。
试试这个：
（1） 看看每一个约束，试着找出你不期望的；
（2） 找到添加了不需要的约束的代码，然后修复它。
(
"",
"",
""
)
将尝试通过打破约束进行恢复
在UIViewAlertForUnsatifiableConstraints处创建一个符号断点，以便在调试器中捕获该断点。
中列出的UIView上UIConstraintBasedLayoutDebugging类别中的方法也可能会有所帮助。

出现这种情况的原因是，在禁用已生效的旧约束之前，您正在激活新的（冲突的）约束

问题出在

else

块的开头，在将

tennisButtonHiddenConstraint1

和

tennisButtonHiddenConstraint2设置为活动状态之前，您需要先禁用其他：
    self.tennisButtonBottomAnchor?.isActive = false
    self.tennisButtonRightAnchor?.isActive = false
    self.tennisButtonHeightAnchor?.isActive = false
    self.tennisButtonWidthAnchor?.isActive = false
    self.tennisButtonHiddenConstraint1?.isActive = true
    self.tennisButtonHiddenConstraint2?.isActive = true

它在第一次加载时工作，因为还没有添加其他约束（因此顺序无关紧要）
如果有疑问，在约束集之间切换时，请始终首先设置。isActive=false