本地化故事板即时本地化 [英] Localization on the fly with localized Storyboards

问题描述

我正在开发一款应用程序，它有一个切换按钮，可以在英语和阿拉伯语之间切换，应该可以随时使用。我正在使用

现在当我像这样重新加载根视图控制器时：

  func reloadRootVC（）{
 
让委托：AppDelegate = UIApplication.sharedApplication（）。委托为！ AppDelegate 
 
 let storyboard = UIStoryboard（名称：Main，bundle：NSBundle.mainBundle（））
 
 delegate.window？.rootViewController =（storyboard.instantiateInitialViewController（）） 
} 
  

它使用本地化字符串和RTL重新加载根，但英文故事板没有阿拉伯语。

试图用这样的方式加载阿拉伯语：

 让storyboard = UIStoryboard（名称：Main，包：NSBundle（路径：NSBundle.mainBundle（）。pathForResource（LanguageManager.currentLanguageCode（），ofType：lproj）！））
  

但不幸的是它加载了故事板但没有图像。它无法读取任何资源图像。

解决方案

我最后将阿拉伯语故事板移到外面并将其命名为Main-AR，然后在<$ c $中添加扩展名c> UIStoryboard to swizzle和storyboard的初始化程序，如果我在阿拉伯语模式下，将 -AR 添加到故事板名称的末尾。

  extension UIStoryboard {
 public override class func initialize（）{
 struct Static {
 static var token：dispatch_once_t = 0 
} 
 
 //确保这不是子类
 if self！== UIStoryboard.self {
 return 
} 
 
 dispatch_once（& Static.token）{
 let originalSelector = #selector（UIStoryboard.init（name：bundle :)）
 let swizzledSelector = #selector（ UIStoryboard.initWithLoc（_：bundle :)）
 
 let originalMethod = class_getClassMethod（self，originalSelector）
 let swizzledMethod = class_getClassMethod（self，swizzledSelector）
 
 class_addMethod（ self，originalSelector，method_getImplementation（swizzledMethod），method_getTypeEncoding（swizzledMethod））
 
 method_exchangeImplementations（originalMethod，swizzledMethod）
 
} 
} 
 
 // MARK： - 方法Swizzling 
 
 class func initW ithLoc（name：String，bundle storyboardBundleOrNil：NSBundle？） - > UIStoryboard {
 var newName = name 
 if LanguageManager.isCurrentLanguageRTL（）{
 newName + = -  AR
 if #available（iOS 9.0，*）{
 UIView.appearance（）。semanticContentAttribute = .ForceRightToLeft 
} else {
 //早期版本的回落
 
} 
} 
 else {
如果#available（iOS 9.0，*）{
 UIView.appearance（）。semanticContentAttribute = .ForceLeftToRight 
} else {
 //早期版本的回退
} 
} 
返回initWithLoc（newName，bundle：storyboardBundleOrNil）
} 
} 
  

I'm working on an app that has a toggle button to switch between English and Arabic language and should be on the fly. I'm using the method in https://github.com/maximbilan/ios_language_manager and it works fine in all cases except if the storyboard is localized by interface not strings:

Now when I reload the root view controller like this:

   func reloadRootVC(){

    let delegate : AppDelegate = UIApplication.sharedApplication().delegate as! AppDelegate

    let storyboard = UIStoryboard(name: "Main", bundle: NSBundle.mainBundle())

    delegate.window?.rootViewController = (storyboard.instantiateInitialViewController())
}

it reload the root with localized strings and in RTL but with the english storyboard not the arabic one.

Tried force loading the arabic one like this:

let storyboard = UIStoryboard(name: "Main", bundle: NSBundle(path: NSBundle.mainBundle().pathForResource(LanguageManager.currentLanguageCode(), ofType: "lproj")!))

but unfortunately it loads the storyboard but with no images. It can't read any resource image.

解决方案

I ended up by moving the arabic storyboard outside and name it Main-AR, then adding an extension in UIStoryboard to swizzle and initializer of storyboard to add -AR to the end of the storyboard name if i'm on arabic mode.

extension UIStoryboard {
public override class func initialize() {
    struct Static {
        static var token: dispatch_once_t = 0
    }

    // make sure this isn't a subclass
    if self !== UIStoryboard.self {
        return
    }

    dispatch_once(&Static.token) {
        let originalSelector = #selector(UIStoryboard.init(name:bundle:))
        let swizzledSelector = #selector(UIStoryboard.initWithLoc(_:bundle:))

        let originalMethod = class_getClassMethod(self, originalSelector)
        let swizzledMethod = class_getClassMethod(self, swizzledSelector)

        class_addMethod(self, originalSelector, method_getImplementation(swizzledMethod), method_getTypeEncoding(swizzledMethod))

        method_exchangeImplementations(originalMethod, swizzledMethod)

    }
}

// MARK: - Method Swizzling

class func initWithLoc(name: String, bundle storyboardBundleOrNil: NSBundle?) -> UIStoryboard{
    var newName = name
    if LanguageManager.isCurrentLanguageRTL(){
        newName += "-AR"
        if #available(iOS 9.0, *) {
            UIView.appearance().semanticContentAttribute = .ForceRightToLeft
        } else {
            // Fallback on earlier versions

        }
    }
    else{
        if #available(iOS 9.0, *) {
            UIView.appearance().semanticContentAttribute = .ForceLeftToRight
        } else {
            // Fallback on earlier versions
        }
    }
    return initWithLoc(newName, bundle: storyboardBundleOrNil)
}
}

这篇关于本地化故事板即时本地化的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！