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Using WebviewScaffold throws debug error #193

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alsocalledchris opened this issue Sep 22, 2018 · 3 comments
Open

Using WebviewScaffold throws debug error #193

alsocalledchris opened this issue Sep 22, 2018 · 3 comments
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@alsocalledchris
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Using an iPhone X emulator, with WebviewScaffold when it tries to show the keyboard when clicking on a form shown in the webpage. Error does not cause a functional issue but would be good for it not to happen.

Reproduce:

  • Using iPhone X emulator
  • Use WebviewScafold in a Container widget on a route (similar to example)
  • Show a webpage with a form field
  • Click form field, bottom webview controls are shown on screen slightly off the screen (next field arrow navigation and Done button), flutter debug window has error

Error thrown:

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)

....

Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x604000290360 H:[_UIModernBarButton:0x7faa86552ce0]-(>=5)-| (active, names: '|':_UIButtonBarButton:0x7faa86552670 )>
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.
flutter: Another exception was thrown: A RenderFlex overflowed by 37 pixels on the bottom.
@slightfoot
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Should be fixed as of v0.3.0+2. Please retest.

@alexelisenko
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alexelisenko commented Feb 8, 2019 •
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I'm having the same issue on v0.3.0+2, although I'm not using the WebviewScaffold, but just WebView in a SizedBox. The parent view has a BottomNavigationBar, and the errors in my log as well as OP mentions _UIButtonBarButton, I'm assuming these are related.

13:39:31.517 2 info flutter.tools 	Try this: 
13:39:31.517 3 info flutter.tools 		(1) look at each constraint and try to figure out which you don't expect; 
13:39:31.517 4 info flutter.tools 		(2) find the code that added the unwanted constraint or constraints and fix it. 
13:39:31.517 5 info flutter.tools 	(Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints) 
13:39:31.517 6 info flutter.tools (
13:39:31.517 7 info flutter.tools     "<NSAutoresizingMaskLayoutConstraint:0x6000029be260 h=-&- v=-&- _UIToolbarContentView:0x7fd0c011bdc0.width == UIToolbar:0x7fd0c011bb80.width   (active)>",
13:39:31.517 8 info flutter.tools     "<NSLayoutConstraint:0x6000029a88c0 H:|-(0)-[_UIButtonBarStackView:0x7fd0c011c2f0]   (active, names: '|':_UIToolbarContentView:0x7fd0c011bdc0 )>",
13:39:31.517 9 info flutter.tools     "<NSLayoutConstraint:0x6000029a9130 _UIButtonBarStackView:0x7fd0c011c2f0.trailing == _UIToolbarContentView:0x7fd0c011bdc0.trailing   (active)>",
13:39:31.517 10 info flutter.tools     "<NSLayoutConstraint:0x600002993ac0 H:|-(20)-[_UIModernBarButton:0x7fd0bcc08aa0]   (active, names: '|':_UIButtonBarButton:0x7fd0bcc2a6d0 )>",
13:39:31.517 11 info flutter.tools     "<NSLayoutConstraint:0x600002993ca0 H:[_UIModernBarButton:0x7fd0bcc08aa0]-(>=8)-|   (active, names: '|':_UIButtonBarButton:0x7fd0bcc2a6d0 )>",
13:39:31.517 12 info flutter.tools     "<NSLayoutConstraint:0x600002992030 H:|-(>=5)-[_UIModernBarButton:0x7fd0bcc00b20]   (active, names: '|':_UIButtonBarButton:0x7fd0bcc30890 )>",
13:39:31.517 13 info flutter.tools     "<NSLayoutConstraint:0x6000029916d0 H:[_UIModernBarButton:0x7fd0bcc00b20]-(>=5)-|   (active, names: '|':_UIButtonBarButton:0x7fd0bcc30890 )>",
13:39:31.517 14 info flutter.tools     "<NSLayoutConstraint:0x6000029944b0 H:|-(8)-[_UIModernBarButton:0x7fd0bcc0e4f0'Done']   (active, names: '|':_UIButtonBarButton:0x7fd0bcc2c3c0 )>",
13:39:31.517 15 info flutter.tools     "<NSLayoutConstraint:0x600002997930 H:[_UIModernBarButton:0x7fd0bcc0e4f0'Done']-(20)-|   (active, names: '|':_UIButtonBarButton:0x7fd0bcc2c3c0 )>",
13:39:31.517 16 info flutter.tools     "<NSLayoutConstraint:0x600002997480 'UISV-canvas-connection' UILayoutGuide:0x6000033c5dc0'UIViewLayoutMarginsGuide'.leading == _UIButtonBarButton:0x7fd0bcc2a6d0.leading   (active)>",
13:39:31.517 17 info flutter.tools     "<NSLayoutConstraint:0x6000029962b0 'UISV-canvas-connection' UILayoutGuide:0x6000033c5dc0'UIViewLayoutMarginsGuide'.trailing == _UIButtonBarButton:0x7fd0bcc2c3c0.trailing   (active)>",
13:39:31.517 18 info flutter.tools     "<NSLayoutConstraint:0x600002996210 'UISV-spacing' H:[_UIButtonBarButton:0x7fd0bcc2a6d0]-(0)-[UIView:0x7fd0bcc15f20]   (active)>",
13:39:31.517 19 info flutter.tools     "<NSLayoutConstraint:0x600002997660 'UISV-spacing' H:[UIView:0x7fd0bcc15f20]-(0)-[_UIButtonBarButton:0x7fd0bcc30890]   (active)>",
13:39:31.517 20 info flutter.tools     "<NSLayoutConstraint:0x600002994b90 'UISV-spacing' H:[_UIButtonBarButton:0x7fd0bcc30890]-(0)-[UIView:0x7fd0bcc16c30]   (active)>",
13:39:31.517 21 info flutter.tools     "<NSLayoutConstraint:0x6000029960d0 'UISV-spacing' H:[UIView:0x7fd0bcc16c30]-(0)-[_UIButtonBarButton:0x7fd0bcc2c3c0]   (active)>",
13:39:31.517 22 info flutter.tools     "<NSLayoutConstraint:0x600002998cd0 'UIView-Encapsulated-Layout-Width' UIToolbar:0x7fd0c011bb80.width == 0   (active)>",
13:39:31.517 23 info flutter.tools     "<NSLayoutConstraint:0x6000029a90e0 'UIView-leftMargin-guide-constraint' H:|-(0)-[UILayoutGuide:0x6000033c5dc0'UIViewLayoutMarginsGuide'](LTR)   (active, names: '|':_UIButtonBarStackView:0x7fd0c011c2f0 )>",
13:39:31.517 24 info flutter.tools     "<NSLayoutConstraint:0x6000029aa3a0 'UIView-rightMargin-guide-constraint' H:[UILayoutGuide:0x6000033c5dc0'UIViewLayoutMarginsGuide']-(0)-|(LTR)   (active, names: '|':_UIButtonBarStackView:0x7fd0c011c2f0 )>"
13:39:31.518 25 info flutter.tools )
13:39:31.518 26 info flutter.tools 
13:39:31.518 27 info flutter.tools Will attempt to recover by breaking constraint 
13:39:31.518 28 info flutter.tools <NSLayoutConstraint:0x600002993ca0 H:[_UIModernBarButton:0x7fd0bcc08aa0]-(>=8)-|   (active, names: '|':_UIButtonBarButton:0x7fd0bcc2a6d0 )>
13:39:31.518 29 info flutter.tools 
13:39:31.518 30 info flutter.tools Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
13:39:31.518 31 info flutter.tools The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKitCore/UIView.h> may also be helpful.
13:39:31.519 32 info flutter.tools 	Probably at least one of the constraints in the following list is one you don't want. 
13:39:31.519 33 info flutter.tools 	Try this: 
13:39:31.519 34 info flutter.tools 		(1) look at each constraint and try to figure out which you don't expect; 
13:39:31.519 35 info flutter.tools 		(2) find the code that added the unwanted constraint or constraints and fix it. 
13:39:31.519 36 info flutter.tools 	(Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints) 
13:39:31.519 37 info flutter.tools (
13:39:31.519 38 info flutter.tools     "<NSAutoresizingMaskLayoutConstraint:0x6000029be260 h=-&- v=-&- _UIToolbarContentView:0x7fd0c011bdc0.width == UIToolbar:0x7fd0c011bb80.width   (active)>",
13:39:31.519 39 info flutter.tools     "<NSLayoutConstraint:0x6000029a88c0 H:|-(0)-[_UIButtonBarStackView:0x7fd0c011c2f0]   (active, names: '|':_UIToolbarContentView:0x7fd0c011bdc0 )>",
13:39:31.519 40 info flutter.tools     "<NSLayoutConstraint:0x6000029a9130 _UIButtonBarStackView:0x7fd0c011c2f0.trailing == _UIToolbarContentView:0x7fd0c011bdc0.trailing   (active)>",
13:39:31.519 41 info flutter.tools     "<NSLayoutConstraint:0x600002992030 H:|-(>=5)-[_UIModernBarButton:0x7fd0bcc00b20]   (active, names: '|':_UIButtonBarButton:0x7fd0bcc30890 )>",
13:39:31.519 42 info flutter.tools     "<NSLayoutConstraint:0x6000029916d0 H:[_UIModernBarButton:0x7fd0bcc00b20]-(>=5)-|   (active, names: '|':_UIButtonBarButton:0x7fd0bcc30890 )>",
13:39:31.519 43 info flutter.tools     "<NSLayoutConstraint:0x6000029944b0 H:|-(8)-[_UIModernBarButton:0x7fd0bcc0e4f0'Done']   (active, names: '|':_UIButtonBarButton:0x7fd0bcc2c3c0 )>",
13:39:31.519 44 info flutter.tools     "<NSLayoutConstraint:0x600002997930 H:[_UIModernBarButton:0x7fd0bcc0e4f0'Done']-(20)-|   (active, names: '|':_UIButtonBarButton:0x7fd0bcc2c3c0 )>",
13:39:31.519 45 info flutter.tools     "<NSLayoutConstraint:0x600002997480 'UISV-canvas-connection' UILayoutGuide:0x6000033c5dc0'UIViewLayoutMarginsGuide'.leading == _UIButtonBarButton:0x7fd0bcc2a6d0.leading   (active)>",
13:39:31.519 46 info flutter.tools     "<NSLayoutConstraint:0x6000029962b0 'UISV-canvas-connection' UILayoutGuide:0x6000033c5dc0'UIViewLayoutMarginsGuide'.trailing == _UIButtonBarButton:0x7fd0bcc2c3c0.trailing   (active)>",
13:39:31.519 47 info flutter.tools     "<NSLayoutConstraint:0x600002996210 'UISV-spacing' H:[_UIButtonBarButton:0x7fd0bcc2a6d0]-(0)-[UIView:0x7fd0bcc15f20]   (active)>",
13:39:31.519 48 info flutter.tools     "<NSLayoutConstraint:0x600002997660 'UISV-spacing' H:[UIView:0x7fd0bcc15f20]-(0)-[_UIButtonBarButton:0x7fd0bcc30890]   (active)>",
13:39:31.520 49 info flutter.tools     "<NSLayoutConstraint:0x600002994b90 'UISV-spacing' H:[_UIButtonBarButton:0x7fd0bcc30890]-(0)-[UIView:0x7fd0bcc16c30]   (active)>",
13:39:31.520 50 info flutter.tools     "<NSLayoutConstraint:0x6000029960d0 'UISV-spacing' H:[UIView:0x7fd0bcc16c30]-(0)-[_UIButtonBarButton:0x7fd0bcc2c3c0]   (active)>",
13:39:31.520 51 info flutter.tools     "<NSLayoutConstraint:0x600002998cd0 'UIView-Encapsulated-Layout-Width' UIToolbar:0x7fd0c011bb80.width == 0   (active)>",
13:39:31.520 52 info flutter.tools     "<NSLayoutConstraint:0x6000029a90e0 'UIView-leftMargin-guide-constraint' H:|-(0)-[UILayoutGuide:0x6000033c5dc0'UIViewLayoutMarginsGuide'](LTR)   (active, names: '|':_UIButtonBarStackView:0x7fd0c011c2f0 )>",
13:39:31.520 53 info flutter.tools     "<NSLayoutConstraint:0x6000029aa3a0 'UIView-rightMargin-guide-constraint' H:[UILayoutGuide:0x6000033c5dc0'UIViewLayoutMarginsGuide']-(0)-|(LTR)   (active, names: '|':_UIButtonBarStackView:0x7fd0c011c2f0 )>"
13:39:31.520 54 info flutter.tools )
13:39:31.520 55 info flutter.tools 
13:39:31.520 56 info flutter.tools Will attempt to recover by breaking constraint 
13:39:31.520 57 info flutter.tools <NSLayoutConstraint:0x6000029916d0 H:[_UIModernBarButton:0x7fd0bcc00b20]-(>=5)-|   (active, names: '|':_UIButtonBarButton:0x7fd0bcc30890 )>
13:39:31.520 58 info flutter.tools 
13:39:31.520 59 info flutter.tools Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
13:39:31.520 60 info flutter.tools The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKitCore/UIView.h> may also be helpful.
13:39:31.520 61 info flutter.tools 	Probably at least one of the constraints in the following list is one you don't want. 
13:39:31.520 62 info flutter.tools 	Try this: 
13:39:31.520 63 info flutter.tools 		(1) look at each constraint and try to figure out which you don't expect; 
13:39:31.520 64 info flutter.tools 		(2) find the code that added the unwanted constraint or constraints and fix it. 
13:39:31.520 65 info flutter.tools 	(Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints) 
13:39:31.520 66 info flutter.tools (
13:39:31.521 67 info flutter.tools     "<NSAutoresizingMaskLayoutConstraint:0x6000029be260 h=-&- v=-&- _UIToolbarContentView:0x7fd0c011bdc0.width == UIToolbar:0x7fd0c011bb80.width   (active)>",
13:39:31.521 68 info flutter.tools     "<NSLayoutConstraint:0x6000029a88c0 H:|-(0)-[_UIButtonBarStackView:0x7fd0c011c2f0]   (active, names: '|':_UIToolbarContentView:0x7fd0c011bdc0 )>",
13:39:31.522 69 info flutter.tools     "<NSLayoutConstraint:0x6000029a9130 _UIButtonBarStackView:0x7fd0c011c2f0.trailing == _UIToolbarContentView:0x7fd0c011bdc0.trailing   (active)>",
13:39:31.522 70 info flutter.tools     "<NSLayoutConstraint:0x6000029944b0 H:|-(8)-[_UIModernBarButton:0x7fd0bcc0e4f0'Done']   (active, names: '|':_UIButtonBarButton:0x7fd0bcc2c3c0 )>",
13:39:31.522 71 info flutter.tools     "<NSLayoutConstraint:0x600002997930 H:[_UIModernBarButton:0x7fd0bcc0e4f0'Done']-(20)-|   (active, names: '|':_UIButtonBarButton:0x7fd0bcc2c3c0 )>",
13:39:31.522 72 info flutter.tools     "<NSLayoutConstraint:0x600002997480 'UISV-canvas-connection' UILayoutGuide:0x6000033c5dc0'UIViewLayoutMarginsGuide'.leading == _UIButtonBarButton:0x7fd0bcc2a6d0.leading   (active)>",
13:39:31.522 73 info flutter.tools     "<NSLayoutConstraint:0x6000029962b0 'UISV-canvas-connection' UILayoutGuide:0x6000033c5dc0'UIViewLayoutMarginsGuide'.trailing == _UIButtonBarButton:0x7fd0bcc2c3c0.trailing   (active)>",
13:39:31.522 74 info flutter.tools     "<NSLayoutConstraint:0x600002996210 'UISV-spacing' H:[_UIButtonBarButton:0x7fd0bcc2a6d0]-(0)-[UIView:0x7fd0bcc15f20]   (active)>",
13:39:31.522 75 info flutter.tools     "<NSLayoutConstraint:0x600002997660 'UISV-spacing' H:[UIView:0x7fd0bcc15f20]-(0)-[_UIButtonBarButton:0x7fd0bcc30890]   (active)>",
13:39:31.522 76 info flutter.tools     "<NSLayoutConstraint:0x600002994b90 'UISV-spacing' H:[_UIButtonBarButton:0x7fd0bcc30890]-(0)-[UIView:0x7fd0bcc16c30]   (active)>",
13:39:31.522 77 info flutter.tools     "<NSLayoutConstraint:0x6000029960d0 'UISV-spacing' H:[UIView:0x7fd0bcc16c30]-(0)-[_UIButtonBarButton:0x7fd0bcc2c3c0]   (active)>",
13:39:31.522 78 info flutter.tools     "<NSLayoutConstraint:0x600002998cd0 'UIView-Encapsulated-Layout-Width' UIToolbar:0x7fd0c011bb80.width == 0   (active)>",
13:39:31.522 79 info flutter.tools     "<NSLayoutConstraint:0x6000029a90e0 'UIView-leftMargin-guide-constraint' H:|-(0)-[UILayoutGuide:0x6000033c5dc0'UIViewLayoutMarginsGuide'](LTR)   (active, names: '|':_UIButtonBarStackView:0x7fd0c011c2f0 )>",
13:39:31.522 80 info flutter.tools     "<NSLayoutConstraint:0x6000029aa3a0 'UIView-rightMargin-guide-constraint' H:[UILayoutGuide:0x6000033c5dc0'UIViewLayoutMarginsGuide']-(0)-|(LTR)   (active, names: '|':_UIButtonBarStackView:0x7fd0c011c2f0 )>"
13:39:31.522 81 info flutter.tools )
13:39:31.522 82 info flutter.tools 
13:39:31.522 83 info flutter.tools Will attempt to recover by breaking constraint 
13:39:31.522 84 info flutter.tools <NSLayoutConstraint:0x600002997930 H:[_UIModernBarButton:0x7fd0bcc0e4f0'Done']-(20)-|   (active, names: '|':_UIButtonBarButton:0x7fd0bcc2c3c0 )>
13:39:31.522 85 info flutter.tools 
13:39:31.522 86 info flutter.tools Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
13:39:31.522 87 info flutter.tools The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKitCore/UIView.h> may also be helpful.

@hcaz hcaz mentioned this issue Oct 1, 2019
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@ghost
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ghost commented Oct 20, 2019

How did you solve it? I have the same problem

@jims57 jims57 mentioned this issue Jul 31, 2020
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@slightfoot @alsocalledchris @alexelisenko