如何在代码中获取当前版本的iOS项目？

Question

我希望能够将我的iOS项目/应用程序的当前版本作为NSString对象,而无需在某个文件中定义常量.我不想在2个地方更改我的版本值.

当我在Project目标摘要中碰撞我的版本时,需要更新该值.

Answer 1

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];

我在类别中有以下方法UIApplication:

extension UIApplication {

    class func appVersion() -> String {
        return Bundle.main.object(forInfoDictionaryKey: "CFBundleShortVersionString") as! String
    }

    class func appBuild() -> String {
        return Bundle.main.object(forInfoDictionaryKey: kCFBundleVersionKey as String) as! String
    }

    class func 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

Answer 2

以下是适用于Xcode 8,Swift 3的内容:

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

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