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by marcosero 4097 days ago
They mentioned why they ditched Auto Layout on obj.io

"If we switch to Apple’s Auto Layout APIs, we can do a little better: 34 lines of code. There is no longer any math or duplication — hurrah! But we’ve traded that for a different set of problems: Auto Layout is hard to set up, is difficult to debug, and suffers from poor runtime performance on complex hierarchies."

http://www.objc.io/issue-22/facebook.html