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 Project target summary.
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
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
(NSString *)kCFBundleVersionKey rather than @"CFBundleVersion". Even though it's longer to type (auto complete will help here), as it's a constant it's checked at compile time.
NSBundle instead of UIApplication this will also allow to replace static calls with the instance ones.UIApplication, as the information returned is about the application. Also, this only applies to the main bundle - it would make no sense to make this an instance method on any bundle.
build when you said appBundle (in the 2nd line of your code) ?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)")
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"];
[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!
}
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
An open source project of mine, App Update Tracker, offers this functionality (and more) in the form of class methods:
+ (NSString *)getShortVersionString+ (NSString *)getLongVersionStringYou would use it like so:
#import "AppUpdateTracker.h"
NSLog(@"short version: %@", [AppUpdateTracker getShortVersionString]);
NSLog(@"long version: %@", [AppUpdateTracker getLongVersionString]);
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:
Just for note
To obtain localized value of any key you should use CFBundleGetValueForInfoDictionaryKey(CFBundleGetMainBundle(), "CFBundleShortVersionString" as CFString)
