cocoa - NSSplitView left view flexible and right view fixed when resizing

Question

I'm creating a vertical NSSplitView programmatically.

I want the right view to start at a specified width. Then if the window is resized I want the right view to stay at that exact width unless changed by the user.

Right now when you resize an NSSplitView both views change size proportionally. I'm using auto layout so I can't use the delegate methods in NSSplitViewDelegate such as -splitView:shouldAdjustSizeOfSubview:.

I'm confused how I would implement this behavior in auto layout for a split view.

Answer 1

You need to adjust the holdingPosition of each view. You can adjust them temporarily for certain changes.

Session 213 from WWDC 2013 videos covers this well.