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, 26 Apr 2013 10:43:54 +0100
I posted similar question to Stackoverflow and it seems that the problem
might be system dependent.
I am on OSX 10.7.5 and XCode 4.6 and the person who tested my minimal
example on XCode 4.6.1 and OS X 10.8.3 did not have any problems with
autolayaout.
Best
K
On 26/04/2013 00:15, Chuck Soper wrote:
I ran into a very similar problem. Recently, I put my view hierarchy into
an NSTabView. When it's in the inactive tab, I get lots of "Unable to
simultaneously satisfy constraints" errors. When the view hierarchy is in
the active tab, there are no errors. I use auto layout in most of my views
accept for the views in document.subviews in NSScrollView.
I don't know if being in the inactive tab is exposing or causing auto
layout problems. I suspect that it will be time consuming to track down.
I'm not recommending this, but one less-than-ideal way to avoid the
problem is to completely deconstruct the view hierarchy before it's in the
inactive tab with code like this:
[[self subviews] makeObjectsPerformSelector:
@selector(removeFromSuperview)];
Then rebuild the view hierarchy before it's in the active tab.
Chuck
On 4/22/13 5:26 PM, "email@hidden" <email@hidden> wrote:
Hello
My problems persist.
So the NSScrolView as such work perfectly if they are in the active tab
view.
However if another tabview is active while window resizing the
scrollviews on the inactive tabs get crazy and report NSClipVIew
constraint with width 0.
Best
K
On 19 Apr 2013, at 08:37, Krzysztof Wicher wrote:
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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