> On 24 Feb 2015, at 20:06, Aaron Lewis <the.warl0ck.1...@gmail.com> wrote: > > Thanks Roland.
No problem. > > I never know about the contentView and intrinsicContentSize property, > learned something new today. > You enlightened me a lot. > > So I tried to use interface editor before but got the same result. Now > I see why. I didn't set a minimal height for the label: or change the compression resistance in one of the inspector panels. > > @"V:|-0-[imageView]-0-[label(>=30)]-0-|” > That’s another way to do it - I think the compression resistance one is ‘better’ in that if the label font changes, the intrinsic size changes, ie the amount of vertical space it takes up isn’t just >= 30 (fixed value) but is >= the minimum size it needs to be able to show all its content. It also means that if the cell does for some reason get forced down to be really small, you don’t get an unsatisfiable constraint because with compression the constraint isn’t required, it’s just highly recommended. Something like [ imageView setContentCompressionResistancePriority:700 ForOrientation:NSLayoutContraintOrientationVertical ] or increasing the compression resistance for the label’s vertical compression should achieve that effect, make the label show but make it only as large as it needs to be. This became more important after iOS7 when the user started to be able to select font size based on eyesight ability (my iOS font is large) and so labels can be widely different sizes. > Changing the constraints to something like this worked. > > > On Tue, Feb 24, 2015 at 6:01 PM, Roland King <r...@rols.org> wrote: >> >>> On 24 Feb 2015, at 16:44, Aaron Lewis <the.warl0ck.1...@gmail.com> wrote: >>> >>> Can someone please take a look at this? >>> >>> http://stackoverflow.com/questions/28690947/why-is-this-uiimage-and-uilabel-collapsed >>> >>> In short words, the UILabel is invisible when I use a image in the >>> UIImageView. >>> It works if I only set backgroundColor. >>> >>> I already add a constraint on it .. I couldn't really tell why. >>> >>> — >> >> 1) don’t add to the cell, add to the cell’s contentView (see the >> documentation on UITableViewCell) >> 2) your vertical layout is ambiguous, almost always the case when something >> ‘disappears’. The label has an intrinsicContentSize, the image has one too >> because you have an image set into it. They both have the same default 750 >> content compression resistance. The cell is a fixed height (unless you’re >> using auto-height cells in which case this shouldn’t be happening) so one or >> other of them loses out. In your case the label loses out and its height >> goes to zero (you could see all this in the debugger by the way). >> >> If you drop the content compression resistance in the vertical direction of >> the uiimage from 750 to 749, or less, then the label should get its height >> and the image view should get what’s left. >> >> And the comment on StackOverflow that you are setting up the views every >> time you dequeue the cell is accurate. >> >> And you could use Interface Builder for this too which is usually easier. > > > > -- > Best Regards, > Aaron Lewis - PGP: 0x13714D33 - http://pgp.mit.edu/ > Finger Print: 9F67 391B B770 8FF6 99DC D92D 87F6 2602 1371 4D33 _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) 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 arch...@mail-archive.com
