NSSplitView make only one panel expand on window resize using auto-layout?

xcode macos cocoa nssplitview
Daniel Farrell picture Daniel Farrell · Jul 15, 2013 · Viewed 7.2k times · Source

Is it possible to achieve the following just using the auto-layout options available from Xcode? For example by changing hugging or compression settings.

Expanding only one panel of an NSSplitView using auto-layout

What is the recommended way of achieving this resize behaviour?

Answer

Thomas Zoechling picture Thomas Zoechling · Jul 15, 2013

If you want to achieve a fixed left panel, just select the left view in Interface Builder an choose "Editor" → "Pin" → "Width". This will make the divider unmovable, though.

If you want to keep a draggable divider, you can use the "Holding Priorities" slider in IB. To prioritize growth of the right panel, select the split view in IB and lower the "Right" holding priority to 1.
Note that those priorities have been added in Mountain Lion. Details can be found in the 10.8 AppKit release notes.

If you need to support 10.7, achieving this NSSplitView behavior might be way harder. Apple fixed several bugs and shortcomings with 10.8 (especially in conjunction with split views).

Related questions

Xcode build failure "Undefined symbols for architecture x86_64"

An Xcode beginner's question: It is my first experience with Xcode 4.6.3. I am trying to write a very simple console program, that searches for paired BT devices and prints them to an NSLog. It builds with the following error: Undefined …

Read More
Hidden Features of Xcode

With a huge influx of newbies to Xcode, I'm sure there are lots of Xcode tips and tricks to be shared. What are yours?

Read More
How to manually create icns files using iconutil?

When I'm validating my app I get this error: the application bundle does not contain an icon in ICNS format, containing both a 512x512 and a 512x512@2x image. I use to make the icns icons with Img2icns app …

Read More