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
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