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I've build an ipa package from my iOS app project. After open the .ipa file with zip. I find that here's so many swift support dynamic libraries.

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I want to know what do libswiftFoundation.dylib and libswiftcore.dylib do?

AntiMoron
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  • `libswiftcore` contains all the Swift functions and data structures. All the others are Swift versions of Obj-C standard libraries, e.g. `NSFoundation`, `UIKit`, `CoreGraphics` etc. – Sulthan Aug 11 '16 at 16:29
  • @Sulthan So swift re-implement those standard libraries instead of wrap them with a bunch of swift interfaces. Am I right? – AntiMoron Aug 12 '16 at 01:40

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libSwiftCore contains Swift standard library functions and structures. The size probably caused by embedded bitcode.

All the other files are the Swift wrappers for Objective-C libraries, e.g. NSFoundation, UIKit etc. I am surprised by the size of the Foundation wrapper but that's probably the most complex library there.

After switching to Xcode 7, app size grew from 9 MB to 60 MB, is there a fix? could be connected here.

Community
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Sulthan
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They are Swift standard libraries. Basically, that comes with swift like arrays, dictionaries etc.

user3001830
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