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Porting Obj-C to Swift Justin Sheckler, Etsy

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Should I port my code?

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Maybe!

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You’re still using Obj-C (for now, at least)

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Read the Docs! http://bit.ly/objc2swift

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Adding Swift to an Existing Project

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Just add a new file and go

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Your New Best Friend: The Bridging Header It imports Swift classes into Obj-C.

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Point to custom Bridging Header in Build Settings

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Where do I Start?

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But, Can I Import Swift Back Into Obj-C? Yes! But it works totally differently. ಠ_ಠ

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The Compatibility Header Your new second-best friend.

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Let’s Demo! http://bit.ly/objc2swiftdemo

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Gotchas! ● Be careful of custom Obj-C types in Swift arguments ● May need to cast primitive types to/from plain-C APIs ● Obj-C/Swift bridges may still be buggy

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Questions? @jayKayEss http://bit.ly/objc2swift (Apple docs) http://bit.ly/objc2swiftdemo (My Demo)