ios - 强制本地化 UIKit 等内部框架，无需重启应用程序

Question

我只需要在应用程序中添加一个切换语言的选项。 我只是坚持本地化内部框架。任何人都可以帮助我从应用程序本身本地化 UIKit 等内部框架而无需重新启动。我的代码工作正常，但对于内部框架的情况需要重新启动。只是内部框架没有本地化。

我当前的代码是:

创建一个名为 BundleExtension.swift 的文件并向其中添加以下代码 -

var bundleKey: UInt8 = 0

class AnyLanguageBundle: Bundle {

override func localizedString(forKey key: String,
                              value: String?,
                              table tableName: String?) -> String {

    guard let path = objc_getAssociatedObject(self, &bundleKey) as? String,
        let bundle = Bundle(path: path) else {

            return super.localizedString(forKey: key, value: value, table: tableName)
    }

    return bundle.localizedString(forKey: key, value: value, table: tableName)
  }
}

extension Bundle {

class func setLanguage(_ language: String) {

    defer {

        object_setClass(Bundle.main, AnyLanguageBundle.self)
    }

    objc_setAssociatedObject(Bundle.main, &bundleKey,    Bundle.main.path(forResource: language, ofType: "lproj"), .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
  }
}

现在每当你需要改变语言时调用这个方法:

func languageButtonAction() {
    // This is done so that network calls now have the Accept-Language as "hi" (Using Alamofire) Check if you can remove these
    UserDefaults.standard.set(["hi"], forKey: "AppleLanguages")
    UserDefaults.standard.synchronize()

    // Update the language by swaping bundle
    Bundle.setLanguage("hi")

    // Done to reintantiate the storyboards instantly
    let storyboard = UIStoryboard.init(name: "Main", bundle: nil)
    UIApplication.shared.keyWindow?.rootViewController = storyboard.instantiateInitialViewController()
}

Answer 1

检查这个演示，它会为你工作。

Link