你可以试试这个方法:

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

获取X.Y.Z格式版本字符串的简单方法是:

[NSBundle mainBundle].infoDictionary[@"CFBundleVersion"]

或者，对于X.Y:

[NSBundle mainBundle].infoDictionary[@"CFBundleShortVersionString"]

这两个代码段都返回字符串，您可以将其分配给标签对象的文本属性，例如。

myLabel.text = [NSBundle mainBundle].infoDictionary[@"CFBundleVersion"];

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

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。

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

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"];