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
捆绑+扩展.swift
import Foundation
extension Bundle {
var versionNumber: String? {
return infoDictionary?["CFBundleShortVersionString"] as? String
}
var buildNumber: String? {
return infoDictionary?["CFBundleVersion"] as? String
}
var bundleName: String? {
return infoDictionary?["CFBundleName"] as? String
}
}
用法:
someLabel.text = Bundle.main.versionNumber
其他回答
针对Swift 3.0更新
在Swift 3.0中,ns前缀已经没有了,一些属性/方法的名称已经更改为更Swifty。这是现在的样子:
extension Bundle {
var releaseVersionNumber: String? {
return infoDictionary?["CFBundleShortVersionString"] as? String
}
var buildVersionNumber: String? {
return infoDictionary?["CFBundleVersion"] as? String
}
}
Bundle.main.releaseVersionNumber
Bundle.main.buildVersionNumber
更新答案
I've been working with Frameworks a lot since my original answer, so I wanted to update my solution to something that is both simpler and much more useful in a multi-bundle environment: extension NSBundle { var releaseVersionNumber: String? { return self.infoDictionary?["CFBundleShortVersionString"] as? String } var buildVersionNumber: String? { return self.infoDictionary?["CFBundleVersion"] as? String } } Now this extension will be useful in apps to identify both the main bundle and any other included bundles (such as a shared framework for extension programming or third frameworks like AFNetworking), like so: NSBundle.mainBundle().releaseVersionNumber NSBundle.mainBundle().buildVersionNumber // or... NSBundle(URL: someURL)?.releaseVersionNumber NSBundle(URL: someURL)?.buildVersionNumber
原来的答案
I wanted to improve on some of the answers already posted. I wrote a class extension that can be added to your tool chain to handle this in a more logical fashion. extension NSBundle { class var applicationVersionNumber: String { if let version = NSBundle.mainBundle().infoDictionary?["CFBundleShortVersionString"] as? String { return version } return "Version Number Not Available" } class var applicationBuildNumber: String { if let build = NSBundle.mainBundle().infoDictionary?["CFBundleVersion"] as? String { return build } return "Build Number Not Available" } } So now you can access this easily by: let versionNumber = NSBundle.applicationVersionNumber
Bundle+Extension.swift (SwiftUI, swift 5, Xcode 11)
我结合了一些答案的想法,并扩展了一点:
一个SwiftUI的例子 如果Info.plist中缺少键,则显示警告三角形表情符号(而不是使应用程序崩溃)
进口的基础
extension Bundle {
public var appVersionShort: String {
if let result = infoDictionary?["CFBundleShortVersionString"] as? String {
return result
} else {
return "⚠️"
}
}
public var appVersionLong: String {
if let result = infoDictionary?["CFBundleVersion"] as? String {
return result
} else {
return "⚠️"
}
}
public var appName: String {
if let result = infoDictionary?["CFBundleName"] as? String {
return result
} else {
return "⚠️"
}
}
}
SwiftUI实例使用
VStack {
Text("Version: \(Bundle.main.appVersionShort!) (\(Bundle.main.appVersionLong!))")
.font(.subheadline)
.frame(maxWidth: .infinity, maxHeight: .infinity)
}
我也知道这个问题已经有了答案,但我总结了之前的答案:
(*)扩展更新
extension Bundle {
var releaseVersionNumber: String? {
return infoDictionary?["CFBundleShortVersionString"] as? String
}
var buildVersionNumber: String? {
return infoDictionary?["CFBundleVersion"] as? String
}
var releaseVersionNumberPretty: String {
return "v\(releaseVersionNumber ?? "1.0.0")"
}
}
用法:
someLabel.text = Bundle.main.releaseVersionNumberPretty
@Deprecated:旧答案
斯威夫特3.1:
class func getVersion() -> String {
guard let version = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String else {
return "no version info"
}
return version
}
对于旧版本:
class func getVersion() -> String {
if let version = NSBundle.mainBundle().infoDictionary?["CFBundleShortVersionString"] as? String {
return version
}
return "no version info"
}
如果你想设置标签文本或者想在其他地方使用;
self.labelVersion.text = getVersion()
Xcode 8, Swift 3:
let gAppVersion = Bundle.main.object(forInfoDictionaryKey: "CFBundleShortVersionString") ?? "0"
let gAppBuild = Bundle.main.object(forInfoDictionaryKey: "CFBundleVersion") ?? "0"
extension UIApplication {
static var appVersion: String {
if let appVersion = NSBundle.mainBundle().objectForInfoDictionaryKey("CFBundleShortVersionString") {
return "\(appVersion)"
} else {
return ""
}
}
static var build: String {
if let buildVersion = NSBundle.mainBundle().objectForInfoDictionaryKey(kCFBundleVersionKey as String) {
return "\(buildVersion)"
} else {
return ""
}
}
static var versionBuild: String {
let version = UIApplication.appVersion
let build = UIApplication.build
var versionAndBuild = "v\(version)"
if version != build {
versionAndBuild = "v\(version)(\(build))"
}
return versionAndBuild
}
}
注意: 你应该在这里使用if,以防应用程序版本或构建没有设置,这将导致崩溃,如果你尝试使用!打开。