Re: NSScrollView in NSTabView autolayout problem
Re: NSScrollView in NSTabView autolayout problem
- Subject: Re: NSScrollView in NSTabView autolayout problem
- From: Krzysztof Wicher <email@hidden>
- Date: Fri, 19 Apr 2013 08:37:58 +0100
Thank you Chuck for pointing me to the answer I will try that. I know
that NSScrollView is not build with Autolayout in mind but I hoped using
it would save several boring layout managment problems arising in my
design.
Also, I did send the message last week but as it was my first to this
mailing list, I was not sure how long it take so I did not resend.
Thanks again
K
On 18/04/2013 17:37, Chuck Soper wrote:
This message may be relevant for your issue:
http://prod.lists.apple.com/archives/cocoa-dev/2013/Feb/msg00426.html
Personally, I don't use auto layout in NSScrollView. I think that
NSScrollView doesn't support it, but it appears that many people have
gotten it to work.
Chuck
P.S. It looks like your message was sent to the list on Saturday, but I
didn't receive it until this morning.
On 4/13/13 1:57 PM, "email@hidden" <email@hidden> wrote:
Hi
I have an NSTabView with multiple tabs, each containing an NSScrollView.
In the scrollviews I dynamically place custom views which are sized using
autolayout and constraints.
Now if I add my custom views to a scrollview in tab1 and resize the
window with this tab active everything works fine and autolayout does not
complain.
On the other hand, if I add my custom views to a scrollview in tab1,
switch to another tab, resize the window, and switch back to tab1
autolayout breaks with the following exemplar message:
Unable to simultaneously satisfy constraints: (
"<NSAutoresizingMaskLayoutConstraint:0x4011d8f60 h=-&- v=-&-
H:|-(0)-[FlippedDocumentView:0x4011b76e0] (Names:
'|':NSClipView:0x40120eb80 )>", "<NSLayoutConstraint:0x4012a5c80
H:|-(10)-[TextViewModuleView:0x401236e80] (Names:
'|':FlippedDocumentView:0x4011b76e0 )>", "<NSLayoutConstraint:0x4011148e0
H:[TextViewModuleView:0x401236e80]-(10)-| (Names:
'|':FlippedDocumentView:0x4011b76e0 )>",
"<NSAutoresizingMaskLayoutConstraint:0x4011d8f00 h=-&- v=-&-
H:[FlippedDocumentView:0x4011b76e0]-(0)-| (Names:
'|':NSClipView:0x40120eb80 )>",
"<NSAutoresizingMaskLayoutConstraint:0x4011d5e00 h=--& v=--&
H:[NSClipView:0x40120eb80(0)]>" )
What I noticed in the message is this "H:[NSClipView:0x40120eb80(0)]".
How come the NSClipView so in fact contentView of the scrollview has
width = 0?
My question is, why does the autolayout work fine for the active tab and
does for inactive?
Thanks
k.
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