//=========================.h file =====================================
// LocalizationSystem.h
// NYF
//
// Created by Nasrullah Mahar on 10/15/12.
// Copyright (c) 2012 Techliance. All rights reserved.
//
#import
#import
#define AMLocalizedString(key, comment) \
[[LocalizationSystem sharedLocalSystem] localizedStringForKey:(key) value:(comment)]
#define LocalizationSetLanguage(language) \
[[LocalizationSystem sharedLocalSystem] setLanguage:(language)]
#define LocalizationGetLanguage \
[[LocalizationSystem sharedLocalSystem] getLanguage]
#define LocalizationReset \
[[LocalizationSystem sharedLocalSystem] resetLocalization]
@interface LocalizationSystem : NSObject {
NSString *language;
}
// you really shouldn't care about this functions and use the MACROS
+ (LocalizationSystem *)sharedLocalSystem;
//gets the string localized
- (NSString *)localizedStringForKey:(NSString *)key value:(NSString *)comment;
//sets the language
- (void) setLanguage:(NSString*) language;
//gets the current language
- (NSString*) getLanguage;
//resets this system.
- (void) resetLocalization;
@end
============================ .m File =============================
//
// LocalizationSystem.m
// NYF
//
// Created by Nasrullah Mahar on 10/15/12.
// Copyright (c) 2012 Techliance. All rights reserved.
//
#import "LocalizationSystem.h"
@implementation LocalizationSystem
//Singleton instance
static LocalizationSystem *_sharedLocalSystem = nil;
//Current application bungle to get the languages.
static NSBundle *bundle = nil;
+ (LocalizationSystem *)sharedLocalSystem
{
@synchronized([LocalizationSystem class])
{
if (!_sharedLocalSystem){
[[self alloc] init];
}
return _sharedLocalSystem;
}
// to avoid compiler warning
return nil;
}
+(id)alloc
{
@synchronized([LocalizationSystem class])
{
NSAssert(_sharedLocalSystem == nil, @"Attempted to allocate a second instance of a singleton.");
_sharedLocalSystem = [super alloc];
return _sharedLocalSystem;
}
// to avoid compiler warning
return nil;
}
- (id)init
{
if ((self = [super init]))
{
//empty.
bundle = [NSBundle mainBundle];
}
return self;
}
// Gets the current localized string as in NSLocalizedString.
//
// example calls:
// AMLocalizedString(@"Text to localize",@"Alternative text, in case hte other is not find");
- (NSString *)localizedStringForKey:(NSString *)key value:(NSString *)comment
{
return [bundle localizedStringForKey:key value:comment table:nil];
}
// Sets the desired language of the ones you have.
// example calls:
// LocalizationSetLanguage(@"Italian");
// LocalizationSetLanguage(@"German");
// LocalizationSetLanguage(@"Spanish");
//
// If this function is not called it will use the default OS language.
// If the language does not exists y returns the default OS language.
- (void) setLanguage:(NSString*) l{
NSLog(@"preferredLang: %@", l);
NSString *path = [[ NSBundle mainBundle ] pathForResource:l ofType:@"lproj" ];
if (path == nil)
//in case the language does not exists
[self resetLocalization];
else
bundle = [[NSBundle bundleWithPath:path] retain];
}
// Just gets the current setted up language.
// returns "es","fr",...
//
// example call:
// NSString * currentL = LocalizationGetLanguage;
- (NSString*) getLanguage{
NSArray* languages = [[NSUserDefaults standardUserDefaults] objectForKey:@"AppleLanguages"];
NSString *preferredLang = [languages objectAtIndex:0];
return preferredLang;
}
// Resets the localization system, so it uses the OS default language.
//
// example call:
// LocalizationReset;
- (void) resetLocalization
{
bundle = [NSBundle mainBundle];
}
@end
===========================Calling=============================
-(IBAction)getEnglish:(id)sender
{
LocalizationSetLanguage(@"en");
lblMultilingualtext.text = AMLocalizedString(@"WelcomeKey", @"");
}
-(IBAction)getArabic:(id)sender
{
LocalizationSetLanguage(@"ar");
lblMultilingualtext.text = AMLocalizedString(@"WelcomeKey", @"");
}
==========================Localizable String Files=====================
======================en file=======
/*
Localizable.strings
NYF
Created by Nasrullah Mahar on 10/15/12.
Copyright (c) 2012 Techliance. All rights reserved.
*/
"WelcomeKey" = "Welcome!!!!";
======================ar file=========
/*
Localizable.strings
NYF
Created by Nasrullah Mahar on 10/15/12.
Copyright (c) 2012 Techliance. All rights reserved.
*/
"WelcomeKey" = "مرحبا!!";
