我有一个带有Azure后端的IOS应用程序,想要记录某些事件,如登录和应用程序用户正在运行的版本。
如何使用Swift返回版本和构建号?
我有一个带有Azure后端的IOS应用程序,想要记录某些事件,如登录和应用程序用户正在运行的版本。
如何使用Swift返回版本和构建号?
当前回答
2022年,Swift 5
extension Bundle {
public var appName: String { getInfo("CFBundleName") }
public var displayName: String { getInfo("CFBundleDisplayName")}
public var language: String { getInfo("CFBundleDevelopmentRegion")}
public var identifier: String { getInfo("CFBundleIdentifier")}
public var copyright: String { getInfo("NSHumanReadableCopyright").replacingOccurrences(of: "\\\\n", with: "\n") }
public var appBuild: String { getInfo("CFBundleVersion") }
public var appVersionLong: String { getInfo("CFBundleShortVersionString") }
//public var appVersionShort: String { getInfo("CFBundleShortVersion") }
fileprivate func getInfo(_ str: String) -> String { infoDictionary?[str] as? String ?? "⚠️" }
}
用法(SwiftUI样本):
Text("Ver: \(Bundle.main.appVersionLong) (\(Bundle.main.appBuild)) ")
Text(Bundle.main.copyright)
.font(.system(size: 10, weight: .thin))
.multilineTextAlignment(.center)
奖励:版权支持\n符号!
其他回答
对于Swift 3.0 NSBundle不工作,下面的代码工作完美。
let versionNumberString =
Bundle.main.object(forInfoDictionaryKey: "CFBundleShortVersionString")
as! String
对于版本号,它是:
let buildNumberString =
Bundle.main.object(forInfoDictionaryKey: "CFBundleVersion")
as! String
令人困惑的'CFBundleVersion'是在Xcode General->Identity中输入的构建号。
以下是Swift 3.2的更新版本:
extension UIApplication
{
static var appVersion:String
{
if let appVersion = Bundle.main.object(forInfoDictionaryKey: "CFBundleShortVersionString")
{
return "\(appVersion)"
}
return ""
}
static var buildNumber:String
{
if let buildNum = Bundle.main.object(forInfoDictionaryKey: kCFBundleVersionKey as String)
{
return "\(buildNum)"
}
return ""
}
static var versionString:String
{
return "\(appVersion).\(buildNumber)"
}
}
我在捆绑上做了一个扩展
extension Bundle {
var appName: String {
return infoDictionary?["CFBundleName"] as! String
}
var bundleId: String {
return bundleIdentifier!
}
var versionNumber: String {
return infoDictionary?["CFBundleShortVersionString"] as! String
}
var buildNumber: String {
return infoDictionary?["CFBundleVersion"] as! String
}
}
然后使用它
versionLabel.text = "\(Bundle.main.appName) v \(Bundle.main.versionNumber) (Build \(Bundle.main.buildNumber))"
EDIT
Swift 4.2更新
let appVersion = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String
EDIT
正如@azdev在Xcode的新版本上指出的那样,你会得到一个编译错误,尝试我以前的解决方案,要解决这个问题,只需编辑它,建议使用一个打开包字典!
let nsObject: AnyObject? = Bundle.main.infoDictionary!["CFBundleShortVersionString"]
最后编辑
使用与Objective-C中相同的逻辑,但有一些小的变化
//First get the nsObject by defining as an optional anyObject
let nsObject: AnyObject? = NSBundle.mainBundle().infoDictionary["CFBundleShortVersionString"]
//Then just cast the object as a String, but be careful, you may want to double check for nil
let version = nsObject as! String
我知道这个问题已经有人回答了,但我个人认为这个问题更清晰一些:
斯威夫特3.0:
if let version = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String {
self.labelVersion.text = version
}
斯威夫特< 2.3
if let version = NSBundle.mainBundle().infoDictionary?["CFBundleShortVersionString"] as? String {
self.labelVersion.text = version
}
这样,if let版本就负责条件处理(在我的例子中设置标签文本),如果infoDictionary或CFBundleShortVersionString为nil,则可选的展开将导致代码被跳过。