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import Foundation
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import SwiftUI
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import Combine
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// 支持的语言枚举
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enum Language: String, CaseIterable {
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case english = "en"
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case chinese = "zh-Hans"
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case thai = "th"
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var displayName: String {
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switch self {
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case .english:
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return "English"
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case .chinese:
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return NSLocalizedString("chinese_language", comment: "Chinese language")
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case .thai:
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return "ไทย"
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}
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}
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var flag: String {
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switch self {
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case .english:
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return "🇺🇸"
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case .chinese:
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return "🇨🇳"
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case .thai:
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return "🇹🇭"
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}
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}
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}
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// 语言管理器
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class LanguageManager: ObservableObject {
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static let shared = LanguageManager()
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@Published var currentLanguage: Language = .english
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@Published var refreshTrigger = UUID() // 用于强制刷新UI
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private let languageKey = "selected_language"
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private init() {
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loadLanguage()
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}
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// 加载保存的语言设置
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private func loadLanguage() {
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if let savedLanguage = UserDefaults.standard.string(forKey: languageKey),
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let language = Language(rawValue: savedLanguage) {
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currentLanguage = language
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} else {
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// 默认使用英文
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currentLanguage = .english
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}
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}
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// 切换语言
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func switchLanguage(to language: Language) {
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currentLanguage = language
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UserDefaults.standard.set(language.rawValue, forKey: languageKey)
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// 强制刷新所有UI
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refreshTrigger = UUID()
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// 通知语言变化
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NotificationCenter.default.post(name: .languageChanged, object: language)
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}
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// 获取本地化字符串
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func localizedString(for key: String) -> String {
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let bundle = Bundle.main
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let language = currentLanguage.rawValue
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if let path = bundle.path(forResource: language, ofType: "lproj"),
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let languageBundle = Bundle(path: path) {
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return languageBundle.localizedString(forKey: key, value: key, table: nil)
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}
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// 如果找不到本地化文件，返回英文
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if let path = bundle.path(forResource: "en", ofType: "lproj"),
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let languageBundle = Bundle(path: path) {
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return languageBundle.localizedString(forKey: key, value: key, table: nil)
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}
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return key
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}
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}
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// 本地化字符串扩展
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extension String {
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var localized: String {
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return LanguageManager.shared.localizedString(for: self)
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}
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}
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// 响应式本地化文本视图
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struct LocalizedText: View {
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let key: String
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@ObservedObject private var languageManager = LanguageManager.shared
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init(_ key: String) {
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self.key = key
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}
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var body: some View {
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Text(languageManager.localizedString(for: key))
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.id(languageManager.refreshTrigger) // 强制刷新
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}
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}
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// 通知名称扩展
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extension Notification.Name {
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static let languageChanged = Notification.Name("languageChanged")
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} |
