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!

你可以使用infoDictionary从info中获取版本细节。这段代码适用于swift 3。只需调用此方法并在任何首选的UI元素中显示版本。

Swift-3  

func getVersion() -> String {
    let dictionary = Bundle.main.infoDictionary!
    let version = dictionary["CFBundleShortVersionString"] as! String
    let build = dictionary["CFBundleVersion"] as! String
    return "v\(version).\(build)"
}

// Syncs with App Store and Xcode Project Settings Input
NSString *appVersion = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"];

你可以试试这个方法:

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

这就是我在申请中所做的

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

希望这个简单的答案能帮助到一些人……

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