我正在尝试实现可以更改应用语言的功能 我试着像这样设置:
let defaults = NSUserDefaults.standardUserDefaults()
defaults.setObject("de", forKey: "AppleLanguages")
应用程序重启后语言仍然是“系统默认”
现在我通过设置Scheme > Application Language > language
来测试不同的语言
但是,用户是否可以单击按钮并在重新启动后查看选择的语言?
还有什么方法可以避免在重启时更改语言?
答案 0 :(得分:10)
您必须使用数组设置AppleLanguages
键,而不是字符串:
UserDefaults.standard.set(["de"], forKey: "AppleLanguages")
答案 1 :(得分:6)
是的,您可以立即更改应用语言,
var language = "de"
let path = NSBundle.mainBundle().pathForResource(language, ofType: "lproj")
let bundle = NSBundle(path: path!)
let string = bundle?.localizedStringForKey("key", value: nil, table: nil)
将您的NSUserDefaults值用于语言。
答案 2 :(得分:5)
以下是在swift
-
假设我想强制Hebrew
本地化:
import Foundation
import UIKit
// Your initialization code here
let langCultureCode: String = "he_IL"
let defaults = NSUserDefaults.standardUserDefaults()
defaults.setObject([langCultureCode], forKey: "AppleLanguages")
defaults.synchronize()
UIApplicationMain(Process.argc, Process.unsafeArgv, nil, NSStringFromClass(AppDelegate))
//@UIApplicationMain <-- COMMENT THIS OUT
class AppDelegate: UIResponder, UIApplicationDelegate
这将使您的应用程序强制进入区域设置而无需任何启动
答案 3 :(得分:1)
如果用于测试目的,只需更改模拟器设置应用程序中的语言
如果你想在你的应用程序中创建一种语言选择器,它很漂亮painful而且我认为你不应该这样。
您的应用程序从设备读取语言和区域设置,并相应地更改UI。
覆盖此行为非常困难,您将无法完成语言的完整更改,例如,如果您尝试在应用程序中显示地图并且设备语言是西班牙语,但应用语言是英语,您将看到用西班牙语写的地图指示
Here一个可以提供帮助的项目。
答案 4 :(得分:0)
您可以在AppDelegate.swift中尝试下面,虽然更改不会立即出现,但在您杀死并重新启动应用程序之后。 -
NSUserDefaults.standardUserDefaults().removeObjectForKey("AppleLanguages")
NSUserDefaults.standardUserDefaults().setObject(["de"], forKey: "AppleLanguages"
NSUserDefaults.standardUserDefaults().synchronize()
答案 5 :(得分:0)
@royherma的答案中提到的main.swift
文件的更新的Swift语法。这样可以避免在覆盖UserDefaults设置后必须重新启动应用程序:
import Foundation
import UIKit
// Your initialization code here
let langCultureCode: String = "LANGUAGE_CODE"
UserDefaults.standard.set([langCultureCode], forKey: "AppleLanguages")
UserDefaults.standard.synchronize()
UIApplicationMain(CommandLine.argc, CommandLine.unsafeArgv, nil, NSStringFromClass(AppDelegate.self))
与@UIApplicationMain
文件中的AppDelegate.swift
配对在一起。
答案 6 :(得分:0)
此解决方案对我有用:
1.创建Bundle的扩展
import Foundation
class L012Localizer: NSObject {
class func DoTheSwizzling() {
MethodSwizzleGivenClassName(cls: Bundle.self, originalSelector: #selector(Bundle.localizedString(forKey:value:table:)), overrideSelector:
#selector(Bundle.specialLocalizedString(key:value:table:)))
}
}
extension Bundle {
@objc func specialLocalizedString(key: String, value: String?, table tableName: String?) -> String {
let currentLanguage = Utils.currentLanguage().rawValue
var bundle = Bundle();
if currentLanguage != "" , let _path = Bundle.main.path(forResource: currentLanguage, ofType: "lproj") {
bundle = Bundle(path: _path)!
} else {
let _path = Bundle.main.path(forResource: "Base", ofType: "lproj")!
bundle = Bundle(path: _path)!
}
return (bundle.specialLocalizedString(key: key, value: value, table: tableName))
}
}
func MethodSwizzleGivenClassName(cls: AnyClass, originalSelector: Selector, overrideSelector: Selector){
let origMethod: Method = class_getInstanceMethod(cls, originalSelector)!;
let overrideMethod: Method = class_getInstanceMethod(cls, overrideSelector)!;
if (class_addMethod(cls, originalSelector, method_getImplementation(overrideMethod), method_getTypeEncoding(overrideMethod))) {
class_replaceMethod(cls, overrideSelector, method_getImplementation(origMethod), method_getTypeEncoding(origMethod));
} else {
method_exchangeImplementations(origMethod, overrideMethod);
}
}
2.在 AppDelegate 中调用 DoTheSwizzling
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
L012Localizer.DoTheSwizzling()
return true
}
3.创建语言实用程序
class Utils: NSObject {
class func setLanguage(_ lang: LanguageType) {
UserDefaults.standard.set([lang.rawValue], forKey: "AppleLanguages")
}
class func currentLanguage() -> LanguageType {
if let langs = UserDefaults.standard.object(forKey: "AppleLanguages") as? [String], let currentLang = langs.first {
return LanguageType(rawValue: currentLang) ?? .english
}
return .english
}
}
4.创建语言类型
enum LanguageType: String {
case english = "en"
case korea = "ko"
case vietnamese = "vi-VN"
func toString() -> String {
switch self {
case .korea:
return "Korea".localized
case .vietnamese:
return "Vietnamese".localized
default:
return "English".localized
}
}
}
5.请记住,您必须在方案中将应用程序语言配置为 SystemLanguage
6.然后,每当您需要对应用程序进行本地化时,只需要调用即可。 Utils.setLanguage({LanguageType})