On 10 Apr 2014, at 17:09, Kyle Sluder <[email protected]> wrote: > On Apr 10, 2014, at 6:25 AM, Jonathan Mitchell <[email protected]> wrote: >> >> On some occasions I want my controls to collapse and set a width defining >> constraint constant to zero. > > In general, views should not be resized to zero width or height. A lot of > times things will break internally (divide by zero errors or visual > artifacts). This was even more likely in the days of springs and struts, when > shrinking a view to zero width/height meant -resizeWithOldSuperviewSize: lost > all the information necessary to apply springs and struts. Thinking about this point again and I don’t think it holds up.
Autolayout can easily drive a view to be of zero size. A view that doesn’t contain sufficient internal constraints (or an intrinsic size) to define an unambiguous frame returns 0,0 for its -fittingSize. Indeed, when adding views to a NSStackView one of the most common issues is that the subview collapses to zero because its -fittingSize is returning 0,0. J _______________________________________________ Cocoa-dev mailing list ([email protected]) 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
