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

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

The value needs to be updated when I bump my version in the Proje开发者_如何转开发ct target summary.

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You can get the version and build numbers as follows:

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

or in Objective-C

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

I have the following methods in a category on 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

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Here's the equivalent in Objective-C:

+ (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

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

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

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

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In Objective C:

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

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

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

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

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[Swift version: 5.2]

All iOS apps must store an app version number in their Info.plist file, but there’s no build-in way to get that as a string you can use in your code.

I have created one small extension to UIApplication that reads the Info.plist file and returns a version number automatically.

Here’s the code:

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

Inside Your Controller

@IBOutlet weak var tv_version: UILabel!
override func viewDidLoad() {
    super.viewDidLoad()
   
    //Display Version
    setUpCurrentVersion()
}


func setUpCurrentVersion(){
    tv_version.text = "v" + UIApplication.appVersion!
}

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In Swift, you can get bundle version by using:

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

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

versionLabel.text = "Version:" + version

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

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

You would use it like so:

#import "AppUpdateTracker.h"

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

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So heres a Swift version for both of these separately:

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

Its included in this repo, check it out:

https://github.com/goktugyil/EZSwiftExtensions

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Just for note

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