macos 如何获取OS X系统版本？

How to get the OS X system version?

提问by jin

I want to get the OS X system version, such as: 10.5.4, 10.4.8, etc. I want to get it in my app, how do I do this? Thanks!

我想获取 OS X 系统版本，例如：10.5.4、10.4.8 等，我想在我的应用程序中获取它，我该怎么做？谢谢！

回答by altan

You can read the property list at "/System/Library/CoreServices/SystemVersion.plist and extract the "ProductVersion" key, this is how the OS X installer application does it. Here's an example:

您可以阅读“/System/Library/CoreServices/SystemVersion.plist”中的属性列表并提取“ProductVersion”键，这是 OS X 安装程序应用程序的工作方式。这是一个示例：

NSString *versionString;
NSDictionary * sv = [NSDictionary dictionaryWithContentsOfFile:@"/System/Library/CoreServices/SystemVersion.plist"];
versionString = [sv objectForKey:@"ProductVersion"];

Alternatively, the command swvers -productVersionwill do the same.

或者，该命令swvers -productVersion将执行相同的操作。

回答by Marc Charbonneau

You can use Gestalt:

您可以使用格式塔：

SInt32 version = 0;
Gestalt( gestaltSystemVersion, &version );
BOOL leopard = ( version >= 0x1050 );

if ( leopard )
{
    //draw it this way
}
else
{
    //draw it that way
}

Keep in mind if you're checking if a method is available or not, it's better to test that directly using respondsToSelector:.

请记住，如果您正在检查某个方法是否可用，最好直接使用 respondsToSelector: 进行测试。

回答by Nick Moore

NSString *osver()
{
    SInt32 versionMajor=0, versionMinor=0, versionBugFix=0;
    Gestalt(gestaltSystemVersionMajor, &versionMajor);
    Gestalt(gestaltSystemVersionMinor, &versionMinor);
    Gestalt(gestaltSystemVersionBugFix, &versionBugFix);
    return [NSString stringWithFormat:@"%d.%d.%d", versionMajor, versionMinor, versionBugFix];
}

回答by Vadim

-[NSProcessInfo operatingSystemVersionString]is human readable and localized. Appropriate for displaying to user or using in bug emails and such, but not appropriate for parsing.

-[NSProcessInfo operatingSystemVersionString]是人类可读和本地化的。适用于向用户显示或在错误电子邮件等中使用，但不适用于解析。

回答by BJ Homer

Again, you can use Gestalt. Look at the documentation for more information; specifically, you'll want to pass the gestaltSystemVersionMajor, gestaltSystemVersionMinor, and gestaltSystemVersionBugFixconstants in the "System Version Constants" portion of the Gestalt Manager Reference documentation

同样，您可以使用格式塔。查看文档以获取更多信息；具体地讲，你要通过gestaltSystemVersionMajor，gestaltSystemVersionMinor和gestaltSystemVersionBugFix常量在的“系统版本常量”部分完形经理参考文档

回答by smorgan

There's also a Cocoa wrapper around the Gestalt calls others have mentioned in the Google Toolbox for Mac: http://code.google.com/p/google-toolbox-for-mac/source/browse/trunk/Foundation/GTMSystemVersion.h

其他人在 Mac 版 Google 工具箱中提到的格式塔调用周围还有一个 Cocoa 包装器：http: //code.google.com/p/google-toolbox-for-mac/source/browse/trunk/Foundation/GTMSystemVersion.h

回答by NewStack

use this method it will return Mac OS X version

使用此方法将返回 Mac OS X 版本

+(SInt32) OSVersion;
{
    SInt32 osxMinorVersion;
    Gestalt(gestaltSystemVersionMinor, &osxMinorVersion);
    return osxMinorVersion;
} 

回答by Mykhailo Lysenko

After 10_10, 8_0 were presented the better & simplest way would be
[NSProcessInfo processInfo].operatingSystemVersion
which will return
NSOperatingSystemVersionstruct
with all 3 numbers.

在 10_10、8_0 之后，更好且最简单的方法是
[NSProcessInfo processInfo].operatingSystemVersion
返回 带有所有 3 个数字的
NSOperatingSystemVersion结构体
。