iOS 文本的多语言适配和实践

//壳工程中的配置文件，反序列化传回FontPackage层//appfont.json{    "list": [{        "env" : "vi",        "note" : "越南语，按照国际编码：vi、vi-VN。FontPackageManager 判断国际编码来对应",        "data" : [{                "font" : 0,                "name" : "genjyuu_light（越南细）"            },{                "font" : 1,                "name" : "genjyuu_medium（越南中）"            },{                "font" : 2,                "name" : "genjyuu_bold（越南粗）"            }        ]    }, {        "env" : "default",        "note" : "其他语种默认使用字体，但优先判断设备的国际编码来匹配字体包",        "data" : [{                "font" : 0,                "name" : "GothamRndSSm-Light"            },{                "font" : 1,                "name" : "GothamRndSSm-Medium"            },{                "font" : 2,                "name" : "GothamRndSSm-Bold"            }        ]    }]}

//已处理+ (UIFont *)systemFontOfSize:(CGFloat)fontSize;+ (UIFont *)systemFontOfSize:(CGFloat)fontSize weight:(UIFontWeight)weight;+ (UIFont *)boldSystemFontOfSize:(CGFloat)fontSize;+ (UIFont *)italicSystemFontOfSize:(CGFloat)fontSize;+ (UIFont *)fontWithName:(NSString *)fontName size:(CGFloat)fontSize;

//FontPackageExtension.m //UIFont+FontPackage.m


+ (UIFont *)xxxFontPackage_systemFontOfSize:(CGFloat)fontSize weight:(UIFontWeight)weight {    NSString *fontName = @"";    if (weight == UIFontWeightMedium) {        fontName = @"medium";    } else if (weight > UIFontWeightMedium) {        fontName = @"bold";    }    return [self fontWithName:fontName size:fontSize];}
+ (UIFont *)xxxFontPackage_italicSystemFontOfSize:(CGFloat)fontSize {    //斜体默认是medium    return [self fontWithName:@"medium" size:fontSize];}
+ (UIFont *)xxxFontPackage_boldSystemFontOfSize:(CGFloat)fontSize {    return [self fontWithName:@"bold" size:fontSize];}
+ (UIFont *)xxxFontPackage_systemFontOfSize:(CGFloat)fontSize {    return [self fontWithName:@"" size:fontSize];}
+ (UIFont *)xxxFontPackage_fontWithName:(NSString *)fontName size:(CGFloat)fontSize {    fontName = [self fontpackage_name:fontName];    return [self xxxFontPackage_fontWithName:fontName size:fontSize];}


+ (NSString *)fontpackage_name:(NSString *)fontName {    fontName = [fontName lowercaseString];    FontPackageFont replaceFont = FontPackageFontLight; //默认light    if ([fontName containsString:@"medium"]) {        replaceFont = FontPackageFontMedium;    } else if ([fontName containsString:@"bold"]) {        replaceFont = FontPackageFontBold;    }    //匹配替换的字体    NSString *replaceFontName = [[FontPackageManager shareInstance].fontPackageInfo.dataMap objectForKey:@(replaceFont)];    return replaceFontName;}

@interface UILabel (Localized)@property (nonatomic, assign) BOOL isAutoLocalized; ///< 设置的文字是否要自动转换成本地化的语言，默认YES@end
@interface NSString (Localized)@property (nonatomic, copy) NSString *oriStr; ///< 上次本地化的字符串原始值@property (nonatomic, copy) NSString *localizedStr; ///< oriStr 本地化后的字符串@end

/** @brief 直接返回指定 key 对应的 本地化文字 @param key 转译文件表中的key */+ (NSString *)forKey:(NSString *)key;
 /** @brief 根据指定的 language code，返回key 对应的 本地化文字 @param key 转译文件表中的key @param langCode语言编码 */+ (NSString *)forKey:(NSString *)key langCode:(NSString *)langCode;
/** @brief 设置当前默认的语言编码 @param langCode语言编码 */+ (void)setCurrentLangCode:(NSString *)langCode;