CODEWITHSUNDEEP
xcodemacos
Ef Dot
Ef Dot

Reputation: 768

Xcode-beta and updated/new frameworks

I run Xcode-beta 7 on 10.10.3. It has new GameplayKit framework and updated SceneKit framework. Can I use them (or their new features) in my current project, or I must have 10.11 beta?

Upvotes: 1

Views: 110

Answers (1)

HAS
HAS

Reputation: 19863

You can write your code on OS X 10.10.3 using Xcode 7β. You can even compile and export the app since Xcode can build it against the included 10.11 SDKs.

You can not, however, run the app on your Mac under 10.10.3. For the app to run you need to update to 10.11β.

Make sure to

  1. always use the same beta version for Xcode and OS X
  2. always use the latest beta

If you try to run an app that links against an SDK that is not available your app will crash before it even started with an error similar to

dyld: Library not loaded: /System/Library/Frameworks/Metal.framework/Versions/A/Metal

That is because the app is configured to tell dyld to search in the system's Frameworks directory for the framework and that directory does not contain the framework on your version of OS X.

For unknown symbols in existing (updated) frameworks there are two options depending on the language:

Swift: With Swift 2.0 the compiler automatically warns you that the API you want to use is not available and makes you guard that statement like so:

if #available(OSX 10.11, *) {
    let nameComponents = NSPersonNameComponents()
} else {
    // Fallback on earlier versions
}

Objc: Use this answer.

Upvotes: 1

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