Embedded Cocoa Frameworks

I often use embedded frameworks, but not quite often enough to remember how, exactly, to create or use them. Consequently I've relearned embedded frameworks three times now. So this time, I made a tutorial about it:

• Embedding Cocoa Frameworks (4.2 MB streaming, you probably need QT6)

Using Xcode, it walks through creating a framework, tweaking the two necessary target settings to make a framework embeddable, exposing .h interface files, using the framework in another project, and how to create cross-project target dependancies. You can find the related project files here (24 KB).

I did discover one Xcode bug after I filmed this (Radar 3628942). Adding a framework using project relative referencing incorrectly results in an absolute path being written to the target's "Framework Search Paths" setting. You can fix this manually by rewriting the path yourself using $(SRCROOT). For example, I rewrote the /Users/demo/Desktop/MyFramework/build path to $(SRCROOT)/../MyFramework/build/. The related "MyApp" project file (download link above) has the corrected path in place.

Update: Joseph Grace writes to provide demographic information about my "audience":

[E]ven though I was extremely impatient (like: why is this video only half done when he's already shown what to do?), I ended up being pleasantly surprised and educated every step of the way right through to the auto-build-dependency bonus! So, I'd say your tutorial was excellent, totally enjoyable, and pleases even a cynical, impatient audience (me! :-).

heh. I'll keep my impatiently cynical audience in mind for the next video!

Tuesday, April 20, 2004
12:00 AM