在iOS中本地化字符串：默认（后备）语言？-Java 学习之路

有没有办法设置在应用程序不支持设备UI语言时使用的默认语言？

示例：我的应用已本地化为英语和德语：

// en.lproj:
"POWER_TO_THE_PEOPLE_BTN" = "Power";
"POWER_PLUG_BTN" = "Power";

// de.lproj:
"POWER_TO_THE_PEOPLE_BTN"  = "Macht";
"POWER_PLUG_BTN" = "Spannung";

现在，如果我在UI语言设置为 Italian 的设备上运行该应用程序，该应用程序将使用键字符串 POWER_TO_THE_PEOPLE_BTN 和 POWER_PLUG_BTN .

必须有一种方法来指定应用程序在这种情况下使用的默认（回退）语言 .

从上面的例子中可以清楚地看出，使用英文字符串作为键是行不通的 .

我现在看到的唯一选择是使用 NSLocalizedStringWithDefaultValue 而不是 NSLocalizedString .

8 回答

13

也许这应该有帮助吗？ - iPhone: localization / internationalization default strings file

默认情况下它应该回退到英语 . 我刚刚将手机切换到我的应用程序未本地化的语言，文本全部是英文的，正如预期的那样 .

Important: as @hyperspasm评论说：要展开/重新定义，回退语言是用户最近在设备设置中选择的语言，也在应用程序的包中表示 .

回复于 2024-04-28T06:18:41+08:00

为了避免所有那些冗长的语法，并为翻译者提供更具描述性的var名称，我派生了自己的帮助方法 L() 进行翻译并回归到英语

NSString * L(NSString * translation_key) {
    NSString * s = NSLocalizedString(translation_key, nil);
    if (![[[NSLocale preferredLanguages] objectAtIndex:0] isEqualToString:@"en"] && [s isEqualToString:translation_key]) {
    NSString * path = [[NSBundle mainBundle] pathForResource:@"en" ofType:@"lproj"];
    NSBundle * languageBundle = [NSBundle bundleWithPath:path];
    s = [languageBundle localizedStringForKey:translation_key value:@"" table:nil];
    }
    return s;
}

我的 Localizable.strings 看起来像这样

"SOME_ACTION_BUTTON" = "Do action";

所以在我的代码中，我会使用 L(@"SOME_ACTION_BUTTON") 来获取正确的字符串

虽然某个时候关键比翻译本身更长 HELP_BUTTON_IN_NAV_BAR = 'Help' 但它节省了我很多时间来解释对谁帮助我做翻译的问题

回复于 2024-04-28T06:18:41+08:00

1

您需要确保Info.plist中CFBundleDevelopmentRegion的值是您想要回退的语言区域 . （例如“en”）

回复于 2024-04-28T06:18:41+08:00

我的解决方案感谢https://stackoverflow.com/a/25928309/3664461

Global.h

NSString * LString(NSString * translation_key);

Global.m

NSString *LString(NSString *translation_key) {
  NSString *lString = nil;
  NSString *languageCode = nil;

  if ([UIDevice currentDevice].systemVersion.floatValue >= 9) {
    NSString *localeIdentifier = [[NSLocale preferredLanguages] objectAtIndex:0];
    NSDictionary *localeDic = [NSLocale componentsFromLocaleIdentifier:localeIdentifier];
    languageCode = [localeDic objectForKey:@"kCFLocaleLanguageCodeKey"];
  } else {
    languageCode = [[NSLocale preferredLanguages] objectAtIndex:0];
  }

  NSString *path = [[NSBundle mainBundle] pathForResource:languageCode ofType:@"lproj"];
  if (path != nil) {
    lString = NSLocalizedStringFromTableInBundle(translation_key, @"Localizable",
                                             [NSBundle bundleWithPath:path], @"");
  }

   path = [[NSBundle mainBundle] pathForResource:@"Base" ofType:@"lproj"];
   lString = NSLocalizedStringFromTableInBundle(translation_key, @"Localizable",
                                             [NSBundle bundleWithPath:path], @"");
  }
  return lString;
}

用法：

#import "Global.h"
printf(LString(@"MyKey").UTF8String);

此解决方案不考虑用户首选项顺序 . 相反，如果用户第一语言未本地化，它将始终回退到Base下的内容 . 此外，如果特定键未针对当前语言进行本地化，但它存在于基本本地化中，您将获得基本本地化 .

更新：

从iOS 9开始，区域包含在语言区域设置中 . 我更新了代码以处理它 .

回复于 2024-04-28T06:18:41+08:00

在不替换任何方法的情况下执行此操作的快速方法是"overriding" NSLocalizedString定义并使用Apple uses用于此定义的方法来替换它并在"overridden"方法中添加额外的回退逻辑 .

#undef NSLocalizedString
#define NSLocalizedString(key, comment) [self localizedStringForKey:(key) replaceValue:(comment)]

+ (NSString *)localizedStringForKey:(NSString *)key replaceValue:(NSString *)comment {
    NSString *fallbackLanguage = @"en";
    NSString *fallbackBundlePath = [[NSBundle mainBundle] pathForResource:fallbackLanguage ofType:@"lproj"];    
    NSBundle *fallbackBundle = [NSBundle bundleWithPath:fallbackBundlePath];
    NSString *fallbackString = [fallbackBundle localizedStringForKey:key value:comment table:nil];    
    NSString *localizedString = [[NSBundle mainBundle] localizedStringForKey:key value:fallbackString table:nil];

    return localizedString;
}

回复于 2024-04-28T06:18:41+08:00

我已创建类别 NSBundle+FallbackLanguage 以支持后备语言，您可以在github folder上查看 . 您只需在实现中指定支持的语言数组 .

NSBundle+FallbackLanguage.h

#import <Foundation/Foundation.h>

#undef NSLocalizedString
#define NSLocalizedString(key, comment) [[NSBundle mainBundle] localizedStringForKey:(key) replaceValue:(comment)]

@interface NSBundle (FallbackLanguage)

- (NSString *)localizedStringForKey:(NSString *)key replaceValue:(NSString *)comment;

@end

NSBundle+FallbackLanguage.m

#import "NSBundle+FallbackLanguage.h"

@implementation NSBundle (FallbackLanguage)

- (NSString *)localizedStringForKey:(NSString *)key replaceValue:(NSString *)comment {        
    NSString *language = [[NSLocale preferredLanguages] objectAtIndex:0];
    NSString *localizedString;

    if ([@[@"en", @"de", @"fr"] containsObject:language]){
        localizedString = [[NSBundle mainBundle] localizedStringForKey:key value:@"" table:nil];
    }
    else{
        NSString *fallbackLanguage = @"en";
        NSString *falbackBundlePath = [[NSBundle mainBundle] pathForResource:fallbackLanguage ofType:@"lproj"];
        NSBundle *fallbackBundle = [NSBundle bundleWithPath:falbackBundlePath];
        NSString *fallbackString = [fallbackBundle localizedStringForKey:key value:comment table:nil];
        localizedString = fallbackString;
    }

    return localizedString;
}

@end

回复于 2024-04-28T06:18:41+08:00

在Swift 4中的@Bogus回答，就像iOS 11.1上的魅力一样：

public func NSLocalizedString(_ key: String, tableName: String? = nil, bundle: Bundle = Bundle.main, value: String = "", comment: String) -> String {
    let fallbackLanguage = "en"
    guard let fallbackBundlePath = Bundle.main.path(forResource: fallbackLanguage, ofType: "lproj") else { return key }
    guard let fallbackBundle = Bundle(path: fallbackBundlePath) else { return key }
    let fallbackString = fallbackBundle.localizedString(forKey: key, value: comment, table: nil)
    return Bundle.main.localizedString(forKey: key, value: fallbackString, table: nil)
}

回复于 2024-04-28T06:18:41+08:00

基于Bodus解决方案（thx btw . ）我创建了这个类别，因为你也需要“fallbackString” . 所以我必须检查设备当前选择的语言，并将其与我想支持的语言进行比较 . 只需导入 Headers ，您就可以使用Apple默认宏

NSString *myString = NSLocalizedString(@"My Ub0rstring", nil);

适用于iOS 9.x和11.1 .

NSString Helper.h

#import <Foundation/Foundation.h>

#undef NSLocalizedString
#define NSLocalizedString(key, comment) [NSString localizedStringForKey:(key) replaceValue:(comment)]

@interface NSString (Helper)

+ (NSString *)localizedStringForKey:(NSString *)key replaceValue:(NSString *)comment;

@end

NSString Helper.m

#import "NSString+Helper.h"

@implementation NSString (Helper)

+ (NSString *)localizedStringForKey:(NSString *)key replaceValue:(NSString *)comment
{
    NSString *fallbackLanguage      = @"en";
    NSString *fallbackBundlePath    = [[NSBundle mainBundle] pathForResource:fallbackLanguage ofType:@"lproj"];
    NSBundle *fallbackBundle        = [NSBundle bundleWithPath:fallbackBundlePath];
    NSString *fallbackString        = [fallbackBundle localizedStringForKey:key value:comment table:nil];
    NSString *localizedString       = [[NSBundle mainBundle] localizedStringForKey:key value:fallbackString table:nil];

    NSString *language              = [[NSLocale preferredLanguages] firstObject];
    NSDictionary *languageDic       = [NSLocale componentsFromLocaleIdentifier:language];
    NSString *languageCode          = [languageDic objectForKey:@"kCFLocaleLanguageCodeKey"];

    if ([languageCode isEqualToString:@"de"] || [languageCode isEqualToString:@"en"]) {
        return localizedString;
    }
    else {
        return fallbackString;
    }
}

@end

回复于 2024-04-28T06:18:41+08:00

在iOS中本地化字符串：默认（后备）语言？

8 回答

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