仅在 iPhone 上重新启动后才更改语言

发布于 2024-11-05 15:26:12 字数 518 浏览 2 评论 0原文

我正在尝试更改应用程序语言，但是当我在 main.h 中运行此代码时，在关闭应用程序并再次运行它后语言会发生变化。是否可以在不重新启动的情况下更改语言？

int main(int argc, char *argv[]) {
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

    NSArray *languages = [NSArray arrayWithObject:@"en_GB"];
    [[NSUserDefaults standardUserDefaults] setObject:languages forKey:@"AppleLanguages"];
    [[NSUserDefaults standardUserDefaults] synchronize];

    int retVal = UIApplicationMain(argc, argv, nil, nil);
    [pool release];
    return retVal;
}

原文

I'm trying to change app language, but when I run this code in main.h language chages after I shut down an App and run it again. Is this possible to change language without restarting?

int main(int argc, char *argv[]) {
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

    NSArray *languages = [NSArray arrayWithObject:@"en_GB"];
    [[NSUserDefaults standardUserDefaults] setObject:languages forKey:@"AppleLanguages"];
    [[NSUserDefaults standardUserDefaults] synchronize];

    int retVal = UIApplicationMain(argc, argv, nil, nil);
    [pool release];
    return retVal;
}

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七禾 2024-11-12 15:26:12

更新答案“如何更改应用程序内的语言”

NSLocalizedString()（及其变体）访问 NSUserDefaults 中的“AppleLanguages”键以确定用户的设置首选语言是。这将返回一组语言代码，第一个是用户为其手机设置的语言代码，如果资源在首选语言中不可用，则后续的代码将用作后备。

如果您愿意，可以使用 setObject:forKey: 方法来覆盖您自己的应用程序的全局设置，就像您所做的那样。这将优先于全局设置值，并返回到应用程序中执行本地化的任何代码。其代码如下所示：

[NSUserDefaults standardUserDefaults] setObject:[NSArray arrayWithObjects:@"de", @"en", @"fr", nil] forKey:@"AppleLanguages"];

注意：为了安全起见，请确保使用适当的预定义语言名称。

下面是代码片段，但您的项目中必须包含所有本地化文件。

@implementation LocalizeLanguage

static NSBundle *bundle = nil;

+(void)initialize {
     NSUserDefaults* defs = [NSUserDefaults standardUserDefaults];
     NSArray* languages = [defs objectForKey:@"AppleLanguages"];
     NSString *current = [[languages objectAtIndex:0] retain];
     [self setLocalizeLanguage:current];
}

/*
  [LocalizeLanguage setLocalizeLanguage:@"en"];
  [LocalizeLanguage setLocalizeLanguage:@"fr"];
*/

+(void)setLocalizeLanguage:(NSString *)lang {
     NSLog(@"preferredLang: %@", lang);
     NSString *path = [[ NSBundle mainBundle ] pathForResource:lang ofType:@"lproj" ];
     bundle = [[NSBundle bundleWithPath:path] retain];
}

+(NSString *)get:(NSString *)key alter:(NSString *)alternate {
    return [bundle localizedStringForKey:key value:alternate table:nil];
}

@end

Update the answer "How to change the languages within the app"

NSLocalizedString() (and variants thereof) access the "AppleLanguages" key in NSUserDefaults to determine what the user's settings for preferred languages are. This returns an array of language codes, with the first one being the one set by the user for their phone, and the subsequent ones used as fallbacks if a resource is not available in the preferred language.

You can override the global setting for your own application if you wish by using the setObject:forKey: method to set your own language list just like you've done it. This will take precedence over the globally set value and be returned to any code in your application that is performing localization. The code for this would look something like:

[NSUserDefaults standardUserDefaults] setObject:[NSArray arrayWithObjects:@"de", @"en", @"fr", nil] forKey:@"AppleLanguages"];

Note: To be on safe side make sure that you use the appropriate pre-defined languages name.

Below is the code snippet, but you MUST have all localization files in your project.

@implementation LocalizeLanguage

static NSBundle *bundle = nil;

+(void)initialize {
     NSUserDefaults* defs = [NSUserDefaults standardUserDefaults];
     NSArray* languages = [defs objectForKey:@"AppleLanguages"];
     NSString *current = [[languages objectAtIndex:0] retain];
     [self setLocalizeLanguage:current];
}

/*
  [LocalizeLanguage setLocalizeLanguage:@"en"];
  [LocalizeLanguage setLocalizeLanguage:@"fr"];
*/

+(void)setLocalizeLanguage:(NSString *)lang {
     NSLog(@"preferredLang: %@", lang);
     NSString *path = [[ NSBundle mainBundle ] pathForResource:lang ofType:@"lproj" ];
     bundle = [[NSBundle bundleWithPath:path] retain];
}

+(NSString *)get:(NSString *)key alter:(NSString *)alternate {
    return [bundle localizedStringForKey:key value:alternate table:nil];
}

@end

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