如何在代码中获取我的 iOS 项目的当前版本？

How do I get the current version of my iOS project in code?

提问by Jovan

I would like to be able to get the current version of my iOS project/app as an NSStringobject without having to define a constant in a file somewhere. I don't want to change my version value in 2 places.

我希望能够将我的 iOS 项目/应用程序的当前版本作为一个NSString对象，而不必在某个文件中的某个地方定义一个常量。我不想在 2 个地方更改我的版本值。

The value needs to be updated when I bump my version in the Project target summary.

当我在项目目标摘要中添加我的版本时，需要更新该值。

回答by Ashley Mills

You can get the version and build numbers as follows:

您可以按如下方式获取版本和内部版本号：

let version = Bundle.main.object(forInfoDictionaryKey: "CFBundleShortVersionString") as! String
let build = Bundle.main.object(forInfoDictionaryKey: kCFBundleVersionKey as String) as! String

or in Objective-C

或在 Objective-C 中

NSString * version = [[NSBundle mainBundle] objectForInfoDictionaryKey: @"CFBundleShortVersionString"];
NSString * build = [[NSBundle mainBundle] objectForInfoDictionaryKey: (NSString *)kCFBundleVersionKey];

I have the following methods in a category on UIApplication:

我在一个类别中有以下方法UIApplication：

extension UIApplication {

    static var appVersion: String {
        return Bundle.main.object(forInfoDictionaryKey: "CFBundleShortVersionString") as! String
    }

    static var appBuild: String {
        return Bundle.main.object(forInfoDictionaryKey: kCFBundleVersionKey as String) as! String
    }

    static var versionBuild: String {
        let version = appVersion, build = appBuild            
        return version == build ? "v\(version)" : "v\(version)(\(build))"
    }
}

Gist:https://gist.github.com/ashleymills/6ec9fce6d7ec2a11af9b

要点：https : //gist.github.com/ashleymills/6ec9fce6d7ec2a11af9b

---

---

Here's the equivalent in Objective-C:

这是 Objective-C 中的等价物：

+ (NSString *) appVersion
{
    return [[NSBundle mainBundle] objectForInfoDictionaryKey: @"CFBundleShortVersionString"];    
}

+ (NSString *) build
{
    return [[NSBundle mainBundle] objectForInfoDictionaryKey: (NSString *)kCFBundleVersionKey];
}

+ (NSString *) versionBuild
{
    NSString * version = [self appVersion];
    NSString * build = [self build];

    NSString * versionBuild = [NSString stringWithFormat: @"v%@", version];

    if (![version isEqualToString: build]) {
        versionBuild = [NSString stringWithFormat: @"%@(%@)", versionBuild, build];
    }

    return versionBuild;
}

Gist:https://gist.github.com/ashleymills/c37efb46c9dbef73d5dd

要点：https : //gist.github.com/ashleymills/c37efb46c9dbef73d5dd

回答by Crashalot

Here's what worked on Xcode 8, Swift 3:

以下是适用于Xcode 8、Swift 3 的内容：

let gAppVersion = Bundle.main.object(forInfoDictionaryKey: "CFBundleShortVersionString") ?? "0"
let gAppBuild = Bundle.main.object(forInfoDictionaryKey: "CFBundleVersion") ?? "0"

print("Version: \(gAppVersion)")
print("Build: \(gAppBuild)")

回答by Vaibhav Shiledar

In Objective C:

在目标 C 中：

1)For getting App version you have to use a:

1）要获得应用程序版本，您必须使用：

NSString *version = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"];

2)For getting Build version you have to use a:

2）要获得 Build 版本，您必须使用：

NSString *buildVersion = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleVersion"]; 

回答by Ravindra Kishan

In Swift, you can get bundle version by using:

在 Swift 中，您可以使用以下命令获取捆绑版本：

let info:NSDictionary = NSBundle.mainBundle().infoDictionary!

let version:String = info.objectForKey("CFBundleShortVersionString") as! String

versionLabel.text = "Version:" + version

回答by Stunner

An open source project of mine, App Update Tracker, offers this functionality (and more) in the form of class methods:

我的一个开源项目App Update Tracker以类方法的形式提供了这个功能（以及更多）：

• + (NSString *)getShortVersionString
• + (NSString *)getLongVersionString

• + (NSString *)getShortVersionString
• + (NSString *)getLongVersionString

You would use it like so:

你会像这样使用它：

#import "AppUpdateTracker.h"

NSLog(@"short version: %@", [AppUpdateTracker getShortVersionString]);
NSLog(@"long version: %@", [AppUpdateTracker getLongVersionString]);

回答by akaDuality

Just for note

仅供参考

To obtain localized value of any key you should use CFBundleGetValueForInfoDictionaryKey(CFBundleGetMainBundle(), "CFBundleShortVersionString" as CFString)

要获取您应该使用的任何键的本地化值 CFBundleGetValueForInfoDictionaryKey(CFBundleGetMainBundle(), "CFBundleShortVersionString" as CFString)

回答by Esqarrouth

So heres a Swift version for both of these separately:

所以这里分别为这两个版本提供了一个 Swift 版本：

let versionNumber = NSBundle.mainBundle().objectForInfoDictionaryKey("CFBundleShortVersionString") as! String
let buildNumber = NSBundle.mainBundle().objectForInfoDictionaryKey("CFBundleVersion") as! String

Its included in this repo, check it out:

它包含在此 repo 中，请查看：

https://github.com/goktugyil/EZSwiftExtensions

https://github.com/goktugyil/EZSwiftExtensions