On Aug 26, 2015, at 7:04 AM, Jacek Oleksy <jole...@opera.com> wrote:
> I want to set NSSegmentStyleSeparated on my NSSegmentedControl
> (managed by autolayout). However, when I create constraints for the
> parent view, I get an exception:
>
> Assertion failure in -[NSSegmentedControl ns_widgetType],
> /SourceCache/AppKit/AppKit-1348.17/Layout.subproj/NSUserInterfaceTheme.m:398
>
> An uncaught exception was raised
> What kind of segmented control are we!
>
> Example code:
>
> (in WindowController)
> - (void)windowDidLoad {
> [super windowDidLoad];
> NSSegmentedControl* segmentedControl = [[NSSegmentedControl alloc] init];
> [segmentedControl setSegmentCount:2];
> [segmentedControl setTranslatesAutoresizingMaskIntoConstraints:NO];
> segmentedControl.segmentStyle = NSSegmentStyleSeparated;
> [self.window.contentView addSubview:segmentedControl];
> NSString* constraint = @"|-[segmentedControl]-|";
> NSDictionary* views = NSDictionaryOfVariableBindings(segmentedControl);
> NSArray* constraints = [NSLayoutConstraint
> constraintsWithVisualFormat:constraint
> options:NSLayoutFormatDirectionLeadingToTrailing
> metrics:nil
> views:views];
> [self.window.contentView addConstraints:constraints];
> }
>
> The exception is raised in "addConstraints:".
> Everything is fine if I do not change segmentStyle. It also works fine
> if I change segment style *after* adding constraints, but then I get
> the exception e.g. when dragging window to external display.
>
> Any ideas?
This is a shot in the dark, but: does it help to initialize with
-initWithFrame: instead of -init? (You can pass NSZeroRect.)
Regards,
Ken
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