Ios NSLocalizedString的宏不工作
我在Prefix.pch中为NSLocalizedString构建了一个宏,如下所示:Ios NSLocalizedString的宏不工作,ios,objective-c,macros,nslocalizedstring,Ios,Objective C,Macros,Nslocalizedstring,我在Prefix.pch中为NSLocalizedString构建了一个宏,如下所示: #undef NSLocalizedString #define NSLocalizedString(key,_comment) [[LocalizedText sharedInstance] localizedStringFor:key] 我的LocalizedText类如下所示: + (LocalizedText *)sharedInstance { @synchronized(self)
#undef NSLocalizedString
#define NSLocalizedString(key,_comment) [[LocalizedText sharedInstance] localizedStringFor:key]
我的LocalizedText类如下所示:
+ (LocalizedText *)sharedInstance {
@synchronized(self)
{
if (_singletonInstance == nil)
_singletonInstance = [[LocalizedText alloc] init];
}
return _singletonInstance;
}
- (NSString *) localizedStringFor:(NSString*) key
{
NSUserDefaults *deviceLanguage = [NSUserDefaults standardUserDefaults];
NSString *currentLanguage = [deviceLanguage objectForKey:@"deviceLanguage"];
NSString *path;
if([currentLanguage isEqual: @"en"])
path = [[NSBundle mainBundle] pathForResource:@"en" ofType:@"lproj"];
else if([currentLanguage isEqual: @"de"])
path = [[NSBundle mainBundle] pathForResource:@"de" ofType:@"lproj"];
else if([currentLanguage isEqual: @"it"])
path = [[NSBundle mainBundle] pathForResource:@"it" ofType:@"lproj"];
NSBundle* languageBundle = [NSBundle bundleWithPath:path];
NSString* str=[languageBundle localizedStringForKey:key value:@"" table:nil];
return str;
}
例如,当我将NSUserDefaults更改为@en时,我希望每个NSLocalizedString都能为我提供正确的英语翻译,但它从未更改,始终是默认语言。我的代码有什么问题?在调试宏之前,我会设置一个测试,如下所示:
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSString *currentLanguage = [defaults objectForKey:@"deviceLanguage"];
NSString *key = @"SomeKeyFromYourLocalizedFile";
NSString *localized = [[LocalizedText sharedInstance] localizedStringFor:key];
NSLog(@"%@: %@", currentLanguage, localized);
[defaults setObject:@"de" forKey:@"deviceLanguage"];
[defaults synchronize];
NSString *localized = [[LocalizedText sharedInstance] localizedStringFor:key];
NSLog(@"%@: %@", currentLanguage, localized);
[defaults setObject:@"it" forKey:@"deviceLanguage"];
[defaults synchronize];
NSString *localized = [[LocalizedText sharedInstance] localizedStringFor:key];
NSLog(@"%@: %@", currentLanguage, localized);
看看它的输出。你的虫子可能在那里的某个地方
我期望:
en: English localized
de: German localized
it: Italian localized
在那之后,您只需使用宏,看起来它将像那样工作。我试过:
#ifdef NSLocalizedString
#undef NSLocalizedString
#endif
#define NSLocalizedString(key, comment) NSLog(@"Output %@, %@", key, comment)
NSLocalizedString(@"First", @"Second");
其结果是:
2017-01-12 14:31:31.501应用程序[49000:50650596]输出第一,第二谢谢你的帮助,[[LocalizedText-sharedInstance]localizedStringFor:key]似乎工作得很好,但当我尝试使用宏时,函数没有被调用,所以它本身似乎有问题。这很奇怪!我也试过同样的方法,但确实有效。请查看更新的答案。