Upgrade to Swift 3

[rickmak]

Tasks:

• Convert Swift example to use Swift 3 syntax
• Add nullability annotation to Objective-C interfaces

[cheungpat]

We also need nullability annotation on our Objective-C code, for example, currentUser on SKYContainer should be nullable.

[chpapa]

I think this issue is related to the problems on XCode 8 Swift? :)

[cheungpat]

Xcode 8 has Swift 3, so this issue is about that, but we don‘t even have very good support for Swift 2, it works, but not very good.

[chpapa]

Shall we just shift focus to swift 3? Given Apple probably won't care much
about backward compatibility of swift?
On Sat, 15 Oct 2016 at 10:53 PM Kwok-kuen Cheung [email protected]
wrote:

Xcode 8 has Swift 3, so this issue is about that, but we don‘t even have
very good support for Swift 2, it works, but not very good.

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[cheungpat]

yea, hence this issue : )

[chpapa]

Coooool
On Sun, 16 Oct 2016 at 12:44 AM Kwok-kuen Cheung [email protected]
wrote:

yea, hence this issue : )

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[Steven-Chan]

follow up issue #120