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Asked: 2026-05-13T22:40:31+00:00

I have an NSCollectionView that contains a collection of CustomViews . Initially it tiled

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I have an NSCollectionView that contains a collection of CustomViews. Initially it tiled the subviews into columns and rows like a grid. I then set the Columns property in IB to 1, so now it just displays them one after another in rows. However, even though my CustomView is 400px wide, it’s set to autoresize, the NSCollectionView is 400px wide, and it’s set to 1 column, the subviews are drawn about 80px wide.

I know I can get around this by calling:

CGFloat width = collectionView.bounds.size.width;
NSSize size = NSMakeSize(width, 85);
[collectionView setMinItemSize:size];
[collectionView setMaxItemSize:size];

But putting this code in the awakeFromNib method of my WindowController only sets the correct width when the program launches. When I resize the window (and the NSCollectionView autoresizes as I’ve specified), the CustomViews stay at their initially set width.

I’m happy to take care of resizing the subviews myself if need be, but I’m quite new to Cocoa and can’t seem to find any articles explaining how to do such a thing. Can someone point me in the right direction?

Anthony

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1 Answer

  1. Editorial Team

    Matt Gallagher’s wonderful blog Cocoa with Love is about to address this. This week, he shared the bindings details of a one-column view like the one in question:

    http://cocoawithlove.com/2010/03/designing-view-with-bindings.html

    Next entry, he promises to share the rest of the implementation, which should give you what you’re looking for.

    (I should note that he is subclassing NSView directly and re-implementing many of NSCollectionView’s features. This seems to be common though; not many people are fond of subclassing NSCollectionView.)

    Edit: Seems he broke his promise… we never did receive that post. See tofutim’s answer below instead.

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