>
> The NSLayoutFormatAlignAllLeft says that all the views mentioned in the
> format string should be aligned along their left edges. Which isn’t possible
> if you want them to be laid out horizontally.
> You should just use 0 for options.
>
> However: StackView is the parent of DetailView so you should be using | as
> the superview, so simply doing something like this should work.
>
> myConstraintsArray = [NSLayoutConstraint
> constraintsWithVisualFormat:@“H:|[DetailView]|" options:0 metrics:nil
> views:myConstraintsViewDictionary];
> [myDetailView addConstraints:myConstraintsArray];
>
> iain
I tred this:
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:|[DetailView]|" options:0 metrics:nil
views:myConstraintsViewDictionary];
[myDetailView addConstraints:myConstraintsArray];
I assumeI don’t need to add StackView to the Dictionary but it won’t do any
harm?
When I run the above I get this error:
Unable to install constraint on view. Does the constraint reference something
from outside the subtree of the view? That's illegal.
constraint:<NSLayoutConstraint:0x610000083de0 H:|-(0)-[LTWDetailXView]
(Names: LTWDetailXView:0x608000181930, '|':NSStackViewContainer:0x6300001a0540
)> view:<LTWDetailXView: 0x608000181930>
](
0 CoreFoundation 0x00007fff8f14f03c
__exceptionPreprocess + 172
1 libobjc.A.dylib 0x00007fff91a3076e
objc_exception_throw + 43
2 CoreFoundation 0x00007fff8f14eeed
+[NSException raise:format:] + 205
3 Foundation 0x00007fff8d9e5e4e
-[NSLayoutConstraint
_addToEngine:integralizationAdjustment:mutuallyExclusiveConstraints:] + 183
4 AppKit 0x00007fff9529549c
-[NSView(NSConstraintBasedLayout)
_layoutEngine_didAddLayoutConstraint:integralizationAdjustment:mutuallyExclusiveConstraints:]
+ 89
5 AppKit 0x00007fff952951eb
-[NSView(NSConstraintBasedLayout)
_tryToAddConstraint:integralizationAdjustment:mutuallyExclusiveConstraints:] +
299
6 AppKit 0x00007fff95294f77
__50-[NSView(NSConstraintBasedLayout) addConstraints:]_block_invoke + 188
7 Foundation 0x00007fff8d9f148e -[NSISEngine
withBehaviors:performModifications:] + 155
8 AppKit 0x00007fff951471aa
-[NSView(NSConstraintBasedLayout) _withAutomaticEngineOptimizationDisabled:] +
70
9 AppKit 0x00007fff95186c6c
-[NSView(NSConstraintBasedLayout) addConstraints:] + 279
10 ClassifierForMac 0x0000000100013a3e
-[LTWValidationWindowController awakeFromNib] + 2206
11 AppKit 0x00007fff9513f079
-[NSIBObjectData nibInstantiateWithOwner:options:topLevelObjects:] + 1276
12 AppKit 0x00007fff9511e0e5 loadNib + 384
13 AppKit 0x00007fff9511d60b
+[NSBundle(NSNibLoading) _loadNibFile:nameTable:options:withZone:ownerBundle:]
+ 313
14 AppKit 0x00007fff952ccbf7
+[NSBundle(NSNibLoadingInternal)
_loadNibFile:externalNameTable:options:withZone:] + 150
15 AppKit 0x00007fff952cc99d
-[NSWindowController loadWindow] + 313
16 AppKit 0x00007fff952c7b65
-[NSWindowController window] + 80
17 ClassifierForMac 0x0000000100013cc3
-[LTWValidationWindowController startUp] + 51
18 ClassifierForMac 0x000000010003d1b7
-[BJDebugWindowController performTestGUI:] + 375
19 libsystem_trace.dylib 0x00007fff8e4ebcd7
_os_activity_initiate + 75
20 AppKit 0x00007fff95367eb1
-[NSApplication sendAction:to:from:] + 452
21 AppKit 0x00007fff9537d946 -[NSControl
sendAction:to:] + 86
22 AppKit 0x00007fff9537d862 __26-[NSCell
_sendActionFrom:]_block_invoke + 131
23 libsystem_trace.dylib 0x00007fff8e4ebcd7
_os_activity_initiate + 75
24 AppKit 0x00007fff9537d7bf -[NSCell
_sendActionFrom:] + 144
25 libsystem_trace.dylib 0x00007fff8e4ebcd7
_os_activity_initiate + 75
26 AppKit 0x00007fff9537bcb3 -[NSCell
trackMouse:inRect:ofView:untilMouseUp:] + 2821
27 AppKit 0x00007fff953d434f
-[NSButtonCell trackMouse:inRect:ofView:untilMouseUp:] + 770
28 AppKit 0x00007fff9537a366 -[NSControl
mouseDown:] + 714
29 AppKit 0x00007fff958e42dc -[NSWindow
_reallySendEvent:isDelayedEvent:] + 14125
30 AppKit 0x00007fff95273c86 -[NSWindow
sendEvent:] + 470
31 AppKit 0x00007fff95270212
-[NSApplication sendEvent:] + 2504
32 AppKit 0x00007fff95199b68
-[NSApplication run] + 711
33 AppKit 0x00007fff95116244
NSApplicationMain + 1832
34 L 0x0000000100000f92 main + 34
35 libdyld.dylib 0x00007fff920285c9 start + 1
)
Any idea what could be wrong?
Thanks a lot for your help on this.
All the Best
Dave
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