這次主要是要實現，當ＡＰＰ在執行當中，可以靠程式碼動態的去切換語系（以下版本可以切換語言以及圖片）
How to force NSLocalizedString to use a specific language
2F 解法，更換APP的小型資料庫記錄語系的欄位（目前試功能只有在重開APP才會生效）
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| [[NSUserDefaults standardUserDefaults] setObject:[NSArray arrayWithObjects:@"de", @"en", @"fr", nil] forKey:@"AppleLanguages"];
[[NSUserDefaults standardUserDefaults] synchronize];
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3F解法，設定要讀取的語言包，再從指定的語言包依照Key-Value實作出本地化效果
這個Github iOS-Localization 還蠻像的
我的改良版1
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#undef NSLocalizedString
#define NSLocalizedString(key,comment) [Language get:(key) alter:nil]
@implementation Language
static NSBundle *bundle = nil;
+(void)initialize {
NSUserDefaults* defs = [NSUserDefaults standardUserDefaults];
NSArray* languages = [defs objectForKey:@"AppleLanguages"];
NSString *current = [[languages objectAtIndex:0] retain];
[self setLanguage:current];
}
example calls:
[Language setLanguage:@"it"];
[Language setLanguage:@"de"];
*/
+(void)setLanguage:(NSString *)l {
NSLog(@"preferredLang: %@", l);
NSString *path = [[ NSBundle mainBundle ] pathForResource:l ofType:@"lproj" ];
bundle = [[NSBundle bundleWithPath:path] retain];
}
+(NSString *)get:(NSString *)key alter:(NSString *)alternate {
return [bundle localizedStringForKey:key value:alternate table:nil];
}
+(NSString *)getImagePath:(NSString *)key WithExtension:(NSString *)extension{
return [bundle pathForResource:key ofType:extension];
}
@end
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