Mixing
How to catch auto layout constraint redundancies [closed]
In my endeavour to ensure the display of my app will look correct in all size I am struggling obviously with auto layout constraints.
In one of my ViewContoller there a UIView (ContainerView) that resizes programatically to keep the proportion settings regardless of the screen size.
With the ContainerView there is a StackView with 3 UIViews filled equally with spacing.
All those views have been added to the Storyboard.
StackView constraints are on CenterX, CenterY and aspect ratio
UIViews constraints within the StackView are on aspect ratio only
When at ViewDidLoad the ContainerView is resized, it triggers the re-calculation of the StackView in order to again keep the right proportions.
I have managed to make it look right, but when I trigger the code to resize and position the StackView, I get the following messages in the print window that I can't decipher it or at least I don't know how to proceed to correct it.
[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. (
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"
(active, names: '|':UIStackView:0x7fe3f9005e20 )>",
"
(active)>",
"
(active)>",
"
(active)>",
"",
"",
"= UIView:0x7fe3f9006b70.bottom (active)>",
"",
"" )
Will attempt to recover by breaking constraint
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints
to catch this in the debugger. The methods in the
UIConstraintBasedLayoutDebugging category on UIView listed in
may also be helpful. 2018-11-21
15:36:38.382957+0100 RTS Game Companion[16230:4711284]
[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. (
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"
(active, names: '|':UIStackView:0x7fe3f9005e20 )>",
"
(active)>",
"
(active)>",
"
(active)>",
"",
"",
"= UIView:0x7fe3f9006ed0.bottom (active)>",
"",
"" )
Will attempt to recover by breaking constraint
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints
to catch this in the debugger. The methods in the
UIConstraintBasedLayoutDebugging category on UIView listed in
may also be helpful. 2018-11-21
15:36:38.427959+0100 RTS Game Companion[16230:4711284]
[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. (
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"
(active)>",
"",
"",
"
(active)>",
"
(active)>",
"
(active)>",
"",
"",
"",
"",
"" )
Will attempt to recover by breaking constraint
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints
to catch this in the debugger. The methods in the
UIConstraintBasedLayoutDebugging category on UIView listed in
may also be helpful.
The code that I use to resize/reposition the StackView is an extension that:
- compares the Width/Height ratio of the ContainerView and the
StackView - depending on the result, it either makes the StackView the same
Height of the Container View or it defines the largest possible Width
within the Container View that satisfies the aspect ratio constraints
of the StackView - reapplies Top, Bottom, Leading and Trailing constraints to the
StackView to ensure it is centered in the Container View
Any help would be appreciated...
Thanks in advance!
ios swift autolayout
asked Nov 21 '18 at 14:58
ChrisChris
316
closed as off-topic by matt, Kara, Narendra Jadhav, meowgoesthedog, EdChum Dec 14 '18 at 9:28
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question was caused by a problem that can no longer be reproduced or a simple typographical error. While similar questions may be on-topic here, this one was resolved in a manner unlikely to help future readers. This can often be avoided by identifying and closely inspecting the shortest program necessary to reproduce the problem before posting." – matt, Narendra Jadhav, meowgoesthedog, EdChum
If this question can be reworded to fit the rules in the help center, please edit the question.
add a comment |
In my endeavour to ensure the display of my app will look correct in all size I am struggling obviously with auto layout constraints.
In one of my ViewContoller there a UIView (ContainerView) that resizes programatically to keep the proportion settings regardless of the screen size.
With the ContainerView there is a StackView with 3 UIViews filled equally with spacing.
All those views have been added to the Storyboard.
StackView constraints are on CenterX, CenterY and aspect ratio
UIViews constraints within the StackView are on aspect ratio only
When at ViewDidLoad the ContainerView is resized, it triggers the re-calculation of the StackView in order to again keep the right proportions.
I have managed to make it look right, but when I trigger the code to resize and position the StackView, I get the following messages in the print window that I can't decipher it or at least I don't know how to proceed to correct it.
[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. (
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"
(active, names: '|':UIStackView:0x7fe3f9005e20 )>",
"
(active)>",
"
(active)>",
"
(active)>",
"",
"",
"= UIView:0x7fe3f9006b70.bottom (active)>",
"",
"" )
Will attempt to recover by breaking constraint
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints
to catch this in the debugger. The methods in the
UIConstraintBasedLayoutDebugging category on UIView listed in
may also be helpful. 2018-11-21
15:36:38.382957+0100 RTS Game Companion[16230:4711284]
[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. (
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"
(active, names: '|':UIStackView:0x7fe3f9005e20 )>",
"
(active)>",
"
(active)>",
"
(active)>",
"",
"",
"= UIView:0x7fe3f9006ed0.bottom (active)>",
"",
"" )
Will attempt to recover by breaking constraint
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints
to catch this in the debugger. The methods in the
UIConstraintBasedLayoutDebugging category on UIView listed in
may also be helpful. 2018-11-21
15:36:38.427959+0100 RTS Game Companion[16230:4711284]
[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. (
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"
(active)>",
"",
"",
"
(active)>",
"
(active)>",
"
(active)>",
"",
"",
"",
"",
"" )
Will attempt to recover by breaking constraint
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints
to catch this in the debugger. The methods in the
UIConstraintBasedLayoutDebugging category on UIView listed in
may also be helpful.
The code that I use to resize/reposition the StackView is an extension that:
- compares the Width/Height ratio of the ContainerView and the
StackView - depending on the result, it either makes the StackView the same
Height of the Container View or it defines the largest possible Width
within the Container View that satisfies the aspect ratio constraints
of the StackView - reapplies Top, Bottom, Leading and Trailing constraints to the
StackView to ensure it is centered in the Container View
Any help would be appreciated...
Thanks in advance!
ios swift autolayout
asked Nov 21 '18 at 14:58
ChrisChris
316
closed as off-topic by matt, Kara, Narendra Jadhav, meowgoesthedog, EdChum Dec 14 '18 at 9:28
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question was caused by a problem that can no longer be reproduced or a simple typographical error. While similar questions may be on-topic here, this one was resolved in a manner unlikely to help future readers. This can often be avoided by identifying and closely inspecting the shortest program necessary to reproduce the problem before posting." – matt, Narendra Jadhav, meowgoesthedog, EdChum
If this question can be reworded to fit the rules in the help center, please edit the question.
Could you please post the relevant parts of your code? That would make it easier to find the problem.
– joern
Nov 22 '18 at 13:34
add a comment |
In my endeavour to ensure the display of my app will look correct in all size I am struggling obviously with auto layout constraints.
In one of my ViewContoller there a UIView (ContainerView) that resizes programatically to keep the proportion settings regardless of the screen size.
With the ContainerView there is a StackView with 3 UIViews filled equally with spacing.
All those views have been added to the Storyboard.
StackView constraints are on CenterX, CenterY and aspect ratio
UIViews constraints within the StackView are on aspect ratio only
When at ViewDidLoad the ContainerView is resized, it triggers the re-calculation of the StackView in order to again keep the right proportions.
I have managed to make it look right, but when I trigger the code to resize and position the StackView, I get the following messages in the print window that I can't decipher it or at least I don't know how to proceed to correct it.
[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. (
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"
(active, names: '|':UIStackView:0x7fe3f9005e20 )>",
"
(active)>",
"
(active)>",
"
(active)>",
"",
"",
"= UIView:0x7fe3f9006b70.bottom (active)>",
"",
"" )
Will attempt to recover by breaking constraint
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints
to catch this in the debugger. The methods in the
UIConstraintBasedLayoutDebugging category on UIView listed in
may also be helpful. 2018-11-21
15:36:38.382957+0100 RTS Game Companion[16230:4711284]
[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. (
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"
(active, names: '|':UIStackView:0x7fe3f9005e20 )>",
"
(active)>",
"
(active)>",
"
(active)>",
"",
"",
"= UIView:0x7fe3f9006ed0.bottom (active)>",
"",
"" )
Will attempt to recover by breaking constraint
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints
to catch this in the debugger. The methods in the
UIConstraintBasedLayoutDebugging category on UIView listed in
may also be helpful. 2018-11-21
15:36:38.427959+0100 RTS Game Companion[16230:4711284]
[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. (
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"
(active)>",
"",
"",
"
(active)>",
"
(active)>",
"
(active)>",
"",
"",
"",
"",
"" )
Will attempt to recover by breaking constraint
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints
to catch this in the debugger. The methods in the
UIConstraintBasedLayoutDebugging category on UIView listed in
may also be helpful.
The code that I use to resize/reposition the StackView is an extension that:
- compares the Width/Height ratio of the ContainerView and the
StackView - depending on the result, it either makes the StackView the same
Height of the Container View or it defines the largest possible Width
within the Container View that satisfies the aspect ratio constraints
of the StackView - reapplies Top, Bottom, Leading and Trailing constraints to the
StackView to ensure it is centered in the Container View
Any help would be appreciated...
Thanks in advance!
ios swift autolayout
asked Nov 21 '18 at 14:58
ChrisChris
316
In my endeavour to ensure the display of my app will look correct in all size I am struggling obviously with auto layout constraints.
In one of my ViewContoller there a UIView (ContainerView) that resizes programatically to keep the proportion settings regardless of the screen size.
With the ContainerView there is a StackView with 3 UIViews filled equally with spacing.
All those views have been added to the Storyboard.
StackView constraints are on CenterX, CenterY and aspect ratio
UIViews constraints within the StackView are on aspect ratio only
When at ViewDidLoad the ContainerView is resized, it triggers the re-calculation of the StackView in order to again keep the right proportions.
I have managed to make it look right, but when I trigger the code to resize and position the StackView, I get the following messages in the print window that I can't decipher it or at least I don't know how to proceed to correct it.
[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. (
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"
(active, names: '|':UIStackView:0x7fe3f9005e20 )>",
"
(active)>",
"
(active)>",
"
(active)>",
"",
"",
"= UIView:0x7fe3f9006b70.bottom (active)>",
"",
"" )
Will attempt to recover by breaking constraint
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints
to catch this in the debugger. The methods in the
UIConstraintBasedLayoutDebugging category on UIView listed in
may also be helpful. 2018-11-21
15:36:38.382957+0100 RTS Game Companion[16230:4711284]
[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. (
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"
(active, names: '|':UIStackView:0x7fe3f9005e20 )>",
"
(active)>",
"
(active)>",
"
(active)>",
"",
"",
"= UIView:0x7fe3f9006ed0.bottom (active)>",
"",
"" )
Will attempt to recover by breaking constraint
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints
to catch this in the debugger. The methods in the
UIConstraintBasedLayoutDebugging category on UIView listed in
may also be helpful. 2018-11-21
15:36:38.427959+0100 RTS Game Companion[16230:4711284]
[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. (
"",
"",
"",
"",
"",
"
(active)>",
"
(active)>",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"",
"
(active)>",
"",
"",
"
(active)>",
"
(active)>",
"
(active)>",
"",
"",
"",
"",
"" )
Will attempt to recover by breaking constraint
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints
to catch this in the debugger. The methods in the
UIConstraintBasedLayoutDebugging category on UIView listed in
may also be helpful.
The code that I use to resize/reposition the StackView is an extension that:
- compares the Width/Height ratio of the ContainerView and the
StackView - depending on the result, it either makes the StackView the same
Height of the Container View or it defines the largest possible Width
within the Container View that satisfies the aspect ratio constraints
of the StackView - reapplies Top, Bottom, Leading and Trailing constraints to the
StackView to ensure it is centered in the Container View
Any help would be appreciated...
Thanks in advance!
ios swift autolayout
ios swift autolayout
asked Nov 21 '18 at 14:58
ChrisChris
316
asked Nov 21 '18 at 14:58
ChrisChris
316
edited Dec 13 '18 at 23:41
Chris
asked Nov 21 '18 at 14:58
ChrisChris
316
asked Nov 21 '18 at 14:58
ChrisChris
316
asked Nov 21 '18 at 14:58
ChrisChris
316
316
closed as off-topic by matt, Kara, Narendra Jadhav, meowgoesthedog, EdChum Dec 14 '18 at 9:28
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question was caused by a problem that can no longer be reproduced or a simple typographical error. While similar questions may be on-topic here, this one was resolved in a manner unlikely to help future readers. This can often be avoided by identifying and closely inspecting the shortest program necessary to reproduce the problem before posting." – matt, Narendra Jadhav, meowgoesthedog, EdChum
If this question can be reworded to fit the rules in the help center, please edit the question.
closed as off-topic by matt, Kara, Narendra Jadhav, meowgoesthedog, EdChum Dec 14 '18 at 9:28
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "This question was caused by a problem that can no longer be reproduced or a simple typographical error. While similar questions may be on-topic here, this one was resolved in a manner unlikely to help future readers. This can often be avoided by identifying and closely inspecting the shortest program necessary to reproduce the problem before posting." – matt, Narendra Jadhav, meowgoesthedog, EdChum
If this question can be reworded to fit the rules in the help center, please edit the question.
Could you please post the relevant parts of your code? That would make it easier to find the problem.
– joern
Nov 22 '18 at 13:34
add a comment |
Could you please post the relevant parts of your code? That would make it easier to find the problem.
– joern
Nov 22 '18 at 13:34
Could you please post the relevant parts of your code? That would make it easier to find the problem.
– joern
Nov 22 '18 at 13:34
Could you please post the relevant parts of your code? That would make it easier to find the problem.
– joern
Nov 22 '18 at 13:34
add a comment |
1 Answer
1
active
oldest
votes
I finally got a way around this issue.
In fact - and that is what the compiler was telling me, there were auto layout constraints competing with each other.
I had set constraints in a given layout composition and later tried to add more constraints since auto layout would not give me the result I was expecting for each device, but the compiler was telling me that not all constraints could be met since some were just different for the same anchor.
I removed all constraints and test them one by one till I found the right set of constraints.
It may sound trivial, but that was simply about it.
answered Dec 13 '18 at 23:47
ChrisChris
316
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I finally got a way around this issue.
In fact - and that is what the compiler was telling me, there were auto layout constraints competing with each other.
I had set constraints in a given layout composition and later tried to add more constraints since auto layout would not give me the result I was expecting for each device, but the compiler was telling me that not all constraints could be met since some were just different for the same anchor.
I removed all constraints and test them one by one till I found the right set of constraints.
It may sound trivial, but that was simply about it.
answered Dec 13 '18 at 23:47
ChrisChris
316
add a comment |
I finally got a way around this issue.
In fact - and that is what the compiler was telling me, there were auto layout constraints competing with each other.
I had set constraints in a given layout composition and later tried to add more constraints since auto layout would not give me the result I was expecting for each device, but the compiler was telling me that not all constraints could be met since some were just different for the same anchor.
I removed all constraints and test them one by one till I found the right set of constraints.
It may sound trivial, but that was simply about it.
answered Dec 13 '18 at 23:47
ChrisChris
316
add a comment |
I finally got a way around this issue.
In fact - and that is what the compiler was telling me, there were auto layout constraints competing with each other.
I had set constraints in a given layout composition and later tried to add more constraints since auto layout would not give me the result I was expecting for each device, but the compiler was telling me that not all constraints could be met since some were just different for the same anchor.
I removed all constraints and test them one by one till I found the right set of constraints.
It may sound trivial, but that was simply about it.
answered Dec 13 '18 at 23:47
ChrisChris
316
I finally got a way around this issue.
In fact - and that is what the compiler was telling me, there were auto layout constraints competing with each other.
I had set constraints in a given layout composition and later tried to add more constraints since auto layout would not give me the result I was expecting for each device, but the compiler was telling me that not all constraints could be met since some were just different for the same anchor.
I removed all constraints and test them one by one till I found the right set of constraints.
It may sound trivial, but that was simply about it.
answered Dec 13 '18 at 23:47
ChrisChris
316
answered Dec 13 '18 at 23:47
ChrisChris
316
answered Dec 13 '18 at 23:47
ChrisChris
316
answered Dec 13 '18 at 23:47
ChrisChris
316
316
add a comment |
add a comment |
Could you please post the relevant parts of your code? That would make it easier to find the problem.
– joern
Nov 22 '18 at 13:34