在Mac OS X上使用Swift检查OS版本 [英] Check OS version using Swift on Mac OS X

问题描述

我正在构建一个应用程序，该应用程序需要检查Mac上安装了什么版本的OSX.它是针对10.9小牛构建的，但是所有的Swift API都只有10.10.

I'm building an application that needs to check what version of OS X is installed on a Mac. It is built against 10.9 Mavericks, but all of the Swift APIs are pretty much 10.10 only.

我正在尝试使用以下内容，但是由于它没有这些API，因此无法针对10.9 SDK进行编译，我知道如何使用if #available(OSX 10.10, *)根据不同版本进行条件编译，但是，因为是10.10+ API，我无法使用它来检查Mac是否正在运行10.9.这是我到目前为止的代码(但是它无法针对10.9 SDK进行编译):

I'm trying to use the following, however it does not compile against the 10.9 SDK since it does not have these APIs, I know how to use if #available(OSX 10.10, *) to conditionally compile as per the different versions, however because NSProcessInfo is a 10.10+ API I can't use it to check to see if the Mac is running 10.9. This is the code I have so far (however it does not compile against the 10.9 SDK):

let osVersion = NSProcessInfo.processInfo().operatingSystemVersion
if osVersion.minorVersion == 9 {
    //  Do something for OS X 10.9 Mavericks
} else {
    // Do something for anything not Mavericks (10.10+)
}

还有另一种方法可以检查Mac在10.9中运行的操作系统吗?基本上，我可以将上面的代码包装为:

Is there another way to check what OS the Mac is running in 10.9? Essentially I could wrap the above code with:

if #available(OSX 10.10, *) {
    let osVersion = NSProcessInfo.processInfo().operatingSystemVersion
    // Check OS version
} else {
    // Check OS version using a 10.9 API
}

我只是不知道该代码块的// Check OS version using a 10.9 API部分要填写什么.

I just don't know what to fill in for the // Check OS version using a 10.9 API section of that code block.

推荐答案

如果在其他版本中使用其他版本，则将使用相同的检查，只是将10.9代码放入其中

The same check will be used just put 10.9 code inside if for other version in else

if #available(OSX 10.9, *) {
 } else {
}

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