blocks|key|153731|text|Swift语法有什么问题？这似乎起作用了：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|153732|if+let+text+=+Bundle.main.infoDictionary?["CFBundleVersion"]+as?+String+{
++++print(text)
}|code-block|syntax|javascript|153733|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

What was wrong with the Swift syntax? This seems to work:

<pre><code>if let text = Bundle.main.infoDictionary?["CFBundleVersion"] as? String {
 print(text)
}
</code></pre>

blocks|key|151241|text|Swift+3/4版|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|151242|func+version()+->+String+{
++++let+dictionary+=+Bundle.main.infoDictionary!
++++let+version+=+dictionary["CFBundleShortVersionString"]+as!+String
++++let+build+=+dictionary["CFBundleVersion"]+as!+String
++++return+"\(version)+build+\(build)"
}+|code-block|syntax|javascript|151243|151244|Swift+2.x版本|151245|func+version()+->+String+{
++++let+dictionary+=+NSBundle.mainBundle().infoDictionary!
++++let+version+=+dictionary["CFBundleShortVersionString"]+as+String
++++let+build+=+dictionary["CFBundleVersion"]+as+String
++++return+"\(version)+build+\(build)"
}|151246|正如here所见。|151247|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/7309349/8047^0|0|A|0|0|0|0|B|0|0|2|4|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@$9|10|A|11|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|12|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|13|8|@]|D|@]|E|$]]|$1|L|3|M|5|6|7|14|8|@$9|15|A|16|B|C]]|D|@]|E|$]]|$1|N|3|O|5|H|7|17|8|@]|D|@]|E|$I|J]]|$1|P|3|Q|5|6|7|18|8|@]|D|@$9|19|A|1A|1|1B]]|E|$]]|$1|R|3|-4|5|6|7|1C|8|@]|D|@]|E|$]]]|S|$T|$5|U|V|W|E|$X|Y]]]]

Swift 3/4 Version

<pre><code>func version() -&gt; String {
 let dictionary = Bundle.main.infoDictionary!
 let version = dictionary["CFBundleShortVersionString"] as! String
 let build = dictionary["CFBundleVersion"] as! String
 return "\(version) build \(build)"
} 
</code></pre>

<hr>

Swift 2.x Version

<pre><code>func version() -&gt; String {
 let dictionary = NSBundle.mainBundle().infoDictionary!
 let version = dictionary["CFBundleShortVersionString"] as String
 let build = dictionary["CFBundleVersion"] as String
 return "\(version) build \(build)"
}
</code></pre>

as seen <a href="https://stackoverflow.com/a/7309349/8047">here</a>.

blocks|key|152374|text|对于Xcode6的最终版本，请使用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|152375|NSBundle.mainBundle().infoDictionary?["CFBundleVersion"]+as?+String|code-block|syntax|javascript|152376|"?“在这里，infoDictionary后面的字符很重要|152377|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

For the final release of Xcode 6 use

<pre><code>NSBundle.mainBundle().infoDictionary?["CFBundleVersion"] as? String
</code></pre>

The "?" character after infoDictionary is important here

blocks|key|2737246|text|下面是获取构建和版本的简单方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2737247|Swift+4.X的|2737248|+if+let+version+=+Bundle.main.infoDictionary?["CFBundleShortVersionString"]+as?+String+{
+++++print(version)
+++}

+if+let+build+=+Bundle.main.infoDictionary?["CFBundleVersion"]+as?+String+{
+++++print(build)
+++}|code-block|syntax|javascript|2737249|Objective+C的|offset|length|style|BOLD|2737250|NSString+*build+=+[[[NSBundle+mainBundle]+infoDictionary]+objectForKey:@"CFBundleVersion"];

NSString+*+currentVersion+=+[[[NSBundle+mainBundle]+infoDictionary]+objectForKey:@"CFBundleShortVersionString"];|2737251|如果有任何问题，请告诉我。这对我很有效。|2737252|entityMap^0|0|0|0|0|B|0|0|0|K|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|X|8|@$K|Y|L|Z|M|N]]|9|@]|A|$]]|$1|O|3|P|5|F|7|10|8|@]|9|@]|A|$G|H]]|$1|Q|3|R|5|6|7|11|8|@$K|12|L|13|M|N]]|9|@]|A|$]]|$1|S|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|T|$]]

Here is simple way to get Build and version. 

For Swift 4.X

<pre><code> if let version = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String {
 print(version)
 }

 if let build = Bundle.main.infoDictionary?["CFBundleVersion"] as? String {
 print(build)
 }
</code></pre>

For Objective C

<pre><code>NSString *build = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleVersion"];

NSString * currentVersion = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"];
</code></pre>

Let me know if any issue. This is working for me.

blocks|key|2950047|text|Swift+5.0|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2950048|我为Swift+5创建了一个包装器，在我的所有应用程序中的一个地方获取一些与应用程序相关的字符串，名为AppInfo。|2950049|struct+AppInfo+{

var+appName+:+String+{
++++return+readFromInfoPlist(withKey:+"CFBundleName")+??+"(unknown+app+name)"
}

var+version+:+String+{
++++return+readFromInfoPlist(withKey:+"CFBundleShortVersionString")+??+"(unknown+app+version)"
}

var+build+:+String+{
++++return+readFromInfoPlist(withKey:+"CFBundleVersion")+??+"(unknown+build+number)"
}

var+minimumOSVersion+:+String+{
++++return+readFromInfoPlist(withKey:+"MinimumOSVersion")+??+"(unknown+minimum+OSVersion)"
}

var+copyrightNotice+:+String+{
++++return+readFromInfoPlist(withKey:+"NSHumanReadableCopyright")+??+"(unknown+copyright+notice)"
}

var+bundleIdentifier+:+String+{
++++return+readFromInfoPlist(withKey:+"CFBundleIdentifier")+??+"(unknown+bundle+identifier)"
}

var+developer+:+String+{+return+"my+awesome+name"+}

//+lets+hold+a+reference+to+the+Info.plist+of+the+app+as+Dictionary
private+let+infoPlistDictionary+=+Bundle.main.infoDictionary

///+Retrieves+and+returns+associated+values+(of+Type+String)+from+info.Plist+of+the+app.
private+func+readFromInfoPlist(withKey+key:+String)+->+String?+{
++++return+infoPlistDictionary?[key]+as?+String
+++++}
}|code-block|syntax|javascript|2950050|你可以这样使用它：|2950051|print("The+apps+name+=+\(AppInfo.appname)")|2950052|entityMap^0|0|9|0|1F|7|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|Y|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|Z|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|10|8|@]|D|@]|E|$K|L]]|$1|Q|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|R|$]]

Swift 5.0

I created a wrapper for Swift 5 to get some app related strings at one place in all my apps, called AppInfo.

<pre><code>struct AppInfo {

var appName : String {
 return readFromInfoPlist(withKey: "CFBundleName") ?? "(unknown app name)"
}

var version : String {
 return readFromInfoPlist(withKey: "CFBundleShortVersionString") ?? "(unknown app version)"
}

var build : String {
 return readFromInfoPlist(withKey: "CFBundleVersion") ?? "(unknown build number)"
}

var minimumOSVersion : String {
 return readFromInfoPlist(withKey: "MinimumOSVersion") ?? "(unknown minimum OSVersion)"
}

var copyrightNotice : String {
 return readFromInfoPlist(withKey: "NSHumanReadableCopyright") ?? "(unknown copyright notice)"
}

var bundleIdentifier : String {
 return readFromInfoPlist(withKey: "CFBundleIdentifier") ?? "(unknown bundle identifier)"
}

var developer : String { return "my awesome name" }

// lets hold a reference to the Info.plist of the app as Dictionary
private let infoPlistDictionary = Bundle.main.infoDictionary

/// Retrieves and returns associated values (of Type String) from info.Plist of the app.
private func readFromInfoPlist(withKey key: String) -&gt; String? {
 return infoPlistDictionary?[key] as? String
 }
}
</code></pre>

You can use it like so:

<pre><code>print("The apps name = \(AppInfo.appname)")
</code></pre>

blocks|key|2737198|text|AppName，AppVersion和BuildNumber的快捷方式...|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2737199|if+let+dict+=+NSBundle.mainBundle().infoDictionary+{
+++if+let+version+=+dict["CFBundleShortVersionString"]+as?+String,
+++++++let+bundleVersion+=+dict["CFBundleVersion"]+as?+String,
+++++++let+appName+=+dict["CFBundleName"]+as?+String+{
+++++++++++return+"You're+using+\(appName)+v\(version)+(Build+\(bundleVersion))."
+++}
}|code-block|syntax|javascript|2737200|entityMap^0|0|7|8|A|J|B|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|U|8|@]|D|@]|E|$]]]|L|$]]

Swifty way for <code>AppName</code>, <code>AppVersion</code> and <code>BuildNumber</code>...

<pre><code>if let dict = NSBundle.mainBundle().infoDictionary {
 if let version = dict["CFBundleShortVersionString"] as? String,
 let bundleVersion = dict["CFBundleVersion"] as? String,
 let appName = dict["CFBundleName"] as? String {
 return "You're using \(appName) v\(version) (Build \(bundleVersion))."
 }
}
</code></pre>

blocks|key|151253|text|在swift中，我会将其作为UIApplication的扩展，如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|151254|extension+UIApplication+{

++++func+applicationVersion()+->+String+{

++++++++return+NSBundle.mainBundle().objectForInfoDictionaryKey("CFBundleShortVersionString")+as!+String
++++}

++++func+applicationBuild()+->+String+{

++++++++return+NSBundle.mainBundle().objectForInfoDictionaryKey(kCFBundleVersionKey+as+String)+as!+String
++++}

++++func+versionBuild()+->+String+{

++++++++let+version+=+self.applicationVersion()
++++++++let+build+=+self.applicationBuild()

++++++++return+"v\(version)(\(build))"
++++}
}|code-block|syntax|javascript|151255|然后，您可以只使用以下命令来获取所需的一切：|151256|let+version+=+UIApplication.sharedApplication.applicationVersion()+//+1
let+build+=+UIApplication.sharedApplication.applicationBuild()+//+80
let+both+=+UIApplication.sharedApplication.versionBuild()+//+1(80)|151257|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

In swift, I would make it as extension for UIApplication, like this:

<pre><code>extension UIApplication {

 func applicationVersion() -&gt; String {

 return NSBundle.mainBundle().objectForInfoDictionaryKey("CFBundleShortVersionString") as! String
 }

 func applicationBuild() -&gt; String {

 return NSBundle.mainBundle().objectForInfoDictionaryKey(kCFBundleVersionKey as String) as! String
 }

 func versionBuild() -&gt; String {

 let version = self.applicationVersion()
 let build = self.applicationBuild()

 return "v\(version)(\(build))"
 }
}
</code></pre>

Then you can just use following to get everything you need:

<pre><code>let version = UIApplication.sharedApplication.applicationVersion() // 1
let build = UIApplication.sharedApplication.applicationBuild() // 80
let both = UIApplication.sharedApplication.versionBuild() // 1(80)
</code></pre>

blocks|key|152459|text|//返回app版本号|type|unstyled|depth|inlineStyleRanges|entityRanges|data|152460|public+static+var+appVersion:+String?+{
++++return+Bundle.main.object(forInfoDictionaryKey:+"CFBundleShortVersionString")+as?+String
}|code-block|syntax|javascript|152461|//返回app的内部版本号|152462|public+static+var+appBuild:+String?+{
++++return+Bundle.main.object(forInfoDictionaryKey:+kCFBundleVersionKey+as+String)+as?+String
}|152463|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

//Returns app's version number

<pre><code>public static var appVersion: String? {
 return Bundle.main.object(forInfoDictionaryKey: "CFBundleShortVersionString") as? String
}
</code></pre>

//Return app's build number

<pre><code>public static var appBuild: String? {
 return Bundle.main.object(forInfoDictionaryKey: kCFBundleVersionKey as String) as? String
}
</code></pre>

blocks|key|155229|text|此代码适用于Swift+3，Xcode+8：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|155230|let+version+=+Bundle.main.object(forInfoDictionaryKey:+"CFBundleShortVersionString")+??+"0"
let+build+=+Bundle.main.object(forInfoDictionaryKey:+"CFBundleVersion")+??+"0"|code-block|syntax|javascript|155231|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This code works for Swift 3, Xcode 8:

<pre><code>let version = Bundle.main.object(forInfoDictionaryKey: "CFBundleShortVersionString") ?? "0"
let build = Bundle.main.object(forInfoDictionaryKey: "CFBundleVersion") ?? "0"
</code></pre>

blocks|key|153809|text|对于Swift+3，将NSBundle替换为Bundle，mainBundle将简单地替换为main。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|153810|let+AppVersion+=+Bundle.main.infoDictionary!["CFBundleVersion"]+as!+String|code-block|syntax|javascript|153811|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

For Swift 3,Replace NSBundle with Bundle and mainBundle is replaced simply by main.

<pre><code>let AppVersion = Bundle.main.infoDictionary!["CFBundleVersion"] as! String
</code></pre>

blocks|key|151249|text|更新:+Xcode+6.3.1我尝试了上面的所有方法，但在Xcode+6.3.1中都不起作用，但我发现它确实起作用了：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|151250|(NSBundle.mainBundle().infoDictionary?["CFBundleVersion"]+as?+String)!|code-block|syntax|javascript|151251|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

[Update: Xcode 6.3.1] I tried all of the above and none of these work in Xcode 6.3.1 but I found that this does:

<pre><code>(NSBundle.mainBundle().infoDictionary?["CFBundleVersion"] as? String)!
</code></pre>

blocks|key|153771|text|另一种选择是在AppDelegate中定义变量：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|153772|var+applicationVersion:String+{
++++return+NSBundle.mainBundle().objectForInfoDictionaryKey("CFBundleShortVersionString")+as!+String
}
var+applicationBuild:String++{
++++return+NSBundle.mainBundle().objectForInfoDictionaryKey(kCFBundleVersionKey+as+String)+as!+String
}
var+versionBuild:String++{
++++let+version+=+self.applicationVersion
++++let+build+=+self.applicationBuild
++++return+"version:\(version)+build:(\(build))"
}|code-block|syntax|javascript|153773|可以在AppDelegate中作为变量引用的|153774|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Another option is to define in the AppDelegate the variables:

<pre><code>var applicationVersion:String {
 return NSBundle.mainBundle().objectForInfoDictionaryKey("CFBundleShortVersionString") as! String
}
var applicationBuild:String {
 return NSBundle.mainBundle().objectForInfoDictionaryKey(kCFBundleVersionKey as String) as! String
}
var versionBuild:String {
 let version = self.applicationVersion
 let build = self.applicationBuild
 return "version:\(version) build:(\(build))"
}
</code></pre>

that can be referenced as variables in the AppDelegate

blocks|key|2949957|text|Swift+3：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2949958|let+textVersion
+=+Bundle.main.infoDictionary?["CFBundleVersion"]+as?+String|code-block|syntax|javascript|2949959|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Swift 3 :

<pre><code>let textVersion
 = Bundle.main.infoDictionary?["CFBundleVersion"] as? String
</code></pre>

blocks|key|2949996|text|SWIFT+3版本|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2949997|if+let+infoPath+=+Bundle.main.path(forResource:+"Info.plist",+ofType:+nil),
++++++++let+infoAttr+=+try?+FileManager.default.attributesOfItem(atPath:+infoPath),
++++++++let+infoDate+=+infoAttr[.creationDate]+as?+Date
{
++++return+infoDate
}
return+Date()|code-block|syntax|javascript|2949998|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

SWIFT 3 Version

<pre><code>if let infoPath = Bundle.main.path(forResource: "Info.plist", ofType: nil),
 let infoAttr = try? FileManager.default.attributesOfItem(atPath: infoPath),
 let infoDate = infoAttr[.creationDate] as? Date
{
 return infoDate
}
return Date()
</code></pre>

blocks|key|2737308|text|从框架的捆绑包中获取版本|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2737309|要获得框架的结果，您可以使用|2737310|[Access+to+Framework+bundle]|2737311|//inside+framework
let+version+=+bundle.infoDictionary?["CFBundleShortVersionString"]+as?+String|code-block|syntax|javascript|2737312|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/67469835/4770877^0|A|2|0|0|E|0|0|S|0|S|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Z|8|@$9|10|A|11|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|12|8|@$9|13|A|14|B|C]]|D|@$9|15|A|16|1|17]]|E|$]]|$1|J|3|K|5|L|7|18|8|@]|D|@]|E|$M|N]]|$1|O|3|-4|5|6|7|19|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]]]

Get version from Framework's bundle
To have result for framework you can use
<a href="https://stackoverflow.com/a/67469835/4770877">[Access to Framework bundle]</a>
<pre><code>//inside framework
let version = bundle.infoDictionary?[&quot;CFBundleShortVersionString&quot;] as? String
</code></pre>

I am attempting to gain access to the main <code>NSBundle</code> to retrieve version and build information. Thing is, I want to try it in Swift, I know how to retrieve it in Objective-C with:
<pre class="lang-objectivec prettyprint-override"><code>text = [NSBundle.mainBundle.infoDictionary objectForKey:@&quot;CFBundleVersion&quot;];
</code></pre>
Yet I don't know where to start with Swift, I have attempted to write it in the new syntax with no avail.

Getting version and build information with Swift

Objective-C

Swift

Xcode

我正在尝试访问主NSBundle，以检索version和build信息。问题是，我想在Swift中尝试一下，我知道如何在Objective-C中检索它：text = [NSBundle.mainBundle.infoDictionary objectForKey:@"CFBundleVersion"];然而，我不知道从哪里开始使用Swift，我试图用新的语法编写它，但没有成功。

问使用Swift获取版本和内部版本信息
EN

回答 15

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问使用Swift获取版本和内部版本信息
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