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

Question

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.

score 400 · Accepted Answer

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

或在 Objective-C 中

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

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))"
    }
}

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

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;
}

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

score 14 · Accepted Answer

以下是在Xcode 8、Swift 3 上有效的方法：

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

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

score 3 · Accepted Answer

在目标 C 中：

1）要获得应用程序版本，您必须使用：

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

2）要获得 Build 版本，您必须使用：

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

score 2 · Accepted Answer

[斯威夫特版本：5.2]

所有 iOS 应用程序都必须在其 Info.plist 文件中存储应用程序版本号，但没有内置方法可以将其作为可在代码中使用的字符串。

我为 UIApplication 创建了一个小的扩展，它读取 Info.plist 文件并自动返回一个版本号。

这是代码：

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

在你的控制器里面

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


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

score 1 · Accepted Answer

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

score 0 · Accepted Answer

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

你会像这样使用它：

#import "AppUpdateTracker.h"

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

score -1 · Accepted Answer

所以这里有一个分别用于这两个的 Swift 版本：

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

它包含在此回购中，请查看：

https://github.com/goktugyil/EZSwiftExtensions

score -1 · Accepted Answer

仅供参考

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

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

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