有两件事——构建版本和应用版本。

获取App版本: NSString *appVersion = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"]; 获取构建版本: NSString *buildVersion = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleVersion"];

根据Brad Larson的回答，如果你在info plist中存储了主版本和次版本信息(就像我在一个特定的项目中所做的那样)，这对我来说很有效:

- (NSString *)appNameAndVersionNumberDisplayString {
    NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary];
    NSString *appDisplayName = [infoDictionary objectForKey:@"CFBundleDisplayName"];
    NSString *majorVersion = [infoDictionary objectForKey:@"CFBundleShortVersionString"];
    NSString *minorVersion = [infoDictionary objectForKey:@"CFBundleVersion"];

    return [NSString stringWithFormat:@"%@, Version %@ (%@)", 
                appDisplayName, majorVersion, minorVersion];
}

现在手动更新小版本可能会很痛苦，因此使用源存储库修订号技巧是理想的。如果您还没有绑定它(就像我没有)，上面的代码段可能会很有用。它还会提取应用程序的显示名称。

如果你需要version和build num的组合，这里有一个使用Swift 3的简单方法:

let appVersion = Bundle.main.infoDictionary!["CFBundleShortVersionString"]!
let buildNum = Bundle.main.infoDictionary!["CFBundleVersion"]!
let versionInfo = "\(appVersion) (build \(buildNum))"
// versionInfo is now something like "2.3.0 (build 17)"

加一个a !String到appVersion或buildNum行的末尾，以仅获取该部分作为String对象。如果你想要完整的versionInfo，就不需要这样做了。

我希望这能有所帮助!

Swift版本分别为:

斯威夫特3

let versionNumber = Bundle.main.object(forInfoDictionaryKey: "CFBundleShortVersionString") as! String
let buildNumber = Bundle.main.object(forInfoDictionaryKey: "CFBundleVersion") as! String

斯威夫特2

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

它包括在这个回购，检查一下:

https://github.com/goktugyil/EZSwiftExtensions

func getAppVersion() -> String {
    let dictionary = Bundle.main.infoDictionary!
    let versionValue = dictionary["CFBundleShortVersionString"] ?? "0"
    let buildValue = dictionary["CFBundleVersion"] ?? "0"
    return "\(versionValue) (build \(buildValue))"
}

基于@rajat chauhan的回答，没有强制转换为字符串。

有两件事——构建版本和应用版本。

获取App版本: NSString *appVersion = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"]; 获取构建版本: NSString *buildVersion = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleVersion"];