• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Adding Constraints in Code
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Adding Constraints in Code


  • Subject: Adding Constraints in Code
  • From: Dave <email@hidden>
  • Date: Mon, 14 Sep 2015 10:35:12 +0100

Hi All,

I’m trying to add Constraints to a View in order to have it stretch to the left and right edges of the superview. This is slight complicated by it being in a ScrollView/Stack View Combo as so:


NSScrollView						Setup in NIB
	NSFlippedClipView				Setup in NIB
		NSStackView				Setup in NIB
			LTWDetailXView		(added dynamically in code).


The Detail View is smaller in Width than the  NSScrollView/NSStackView and I want it to stretch to fit it.

I tried adding the following constraints in code as follows:

myDetailView = [myDetailViewController getPrimaryView];
[self.pValidationListStackView addView:myDetailView inGravity:NSStackViewGravityTop];

myConstraintsViewDictionary = [[NSMutableDictionary alloc] init];
[myConstraintsViewDictionary setObject:self.pValidationListStackView forKey:@"StackView"];
[myConstraintsViewDictionary setObject:myDetailView forKey:@"DetailView"];

myConstraintsArray = [NSLayoutConstraint constraintsWithVisualFormat:@"H:[StackView]-(<=1)-[DetailView]" options:NSLayoutFormatAlignAllLeft metrics:nil views:myConstraintsViewDictionary];
[myDetailView addConstraints:myConstraintsArray];

myConstraintsArray = [NSLayoutConstraint constraintsWithVisualFormat:@"H:[StackView]-(<=1)-[DetailView]" options:NSLayoutFormatAlignAllRight metrics:nil views:myConstraintsViewDictionary];
[myDetailView addConstraints:myConstraintsArray];

But I get this Error Message:

Unable to parse constraint format:
Options mask required views to be aligned on a horizontal edge, which is not allowed for layout that is also horizontal.
H:[StackView]-(<=1)-[DetailView]
                                ^
I’m not sure what this means or if the above code is correct?

If anyone has any ideas on this I’d really love to hear them!

Thanks a lot for any help.
All the Best
Dave



_______________________________________________

Cocoa-dev mailing list (email@hidden)

Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com

Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden


  • Follow-Ups:
    • Re: Adding Constraints in Code
      • From: Iain Holmes <email@hidden>
    • Re: Adding Constraints in Code
      • From: Thomas Wetmore <email@hidden>
  • Prev by Date: Re: Identifying a specific Mac model
  • Next by Date: Re: Identifying a specific Mac model
  • Previous by thread: Fwd: Identifying a specific Mac model
  • Next by thread: Re: Adding Constraints in Code
  • Index(es):
    • Date
    • Thread