ios – 如何更改Xcode Playground上的区域设置

我想更改 Xcode Playground上的语言环境来测试本地化.

我找到了这个解决方案,但它不适用于Xcode 6.3.2 Playground：
http://natashatherobot.com/locale-playground-swift/

解决方法

哦,我找到了解决方案！

extension NSLocale {
    class func mono_currentLocale() -> NSLocale {
        return NSLocale(localeIdentifier: "fr")
    }
}
let original = class_getClassMethod(NSLocale.self,#selector(getter: NSLocale.currentLocale))
let swizzled = class_getClassMethod(NSLocale.self,#selector(NSLocale.mono_currentLocale))
method_exchangeImplementations(original,swizzled)

编辑：Swift 4.1版本：

extension NSLocale {
    @objc class func mono_currentLocale() -> NSLocale {
        return NSLocale(localeIdentifier: "fr")
    }
}
let original = class_getClassMethod(NSLocale.self,#selector(getter: NSLocale.current))!
let swizzled = class_getClassMethod(NSLocale.self,#selector(NSLocale.mono_currentLocale))!
method_exchangeImplementations(original,swizzled)