iOS指定加载任意语言

项目中提了个需求,做国际化。但是并不是常规的随着手机系统语言的国际化。要加载特定语言,无视手机系统语言。查阅了网上众多资料,有炫技用runtime的,殊不知,滥用runtime是会挖大坑的.果断放弃,后经多次尝试得出下面答案,仅供给大家参考

配置信息

xcode版本:Version 10.2.1 (10E1001)
macos版本:10.14.6 Beta (18G59b)

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static inline NSString *localString(NSString *string) {

    NSString *stringsBundlePath = [[NSBundle bundleForClass:NSClassFromString(@"IOTUtil")]
                                   pathForResource:@"language"
                                   ofType:@"bundle"];
    NSBundle *bundle = [NSBundle bundleWithPath:stringsBundlePath] ?: [NSBundle mainBundle];
    //languageIOTKey
    NSInteger lanuageValue = [[NSUserDefaults standardUserDefaults] integerForKey:@"languageIOTKey"];
    NSString *pathForResourceStr = @"zh-HK";
    switch (lanuageValue) {
            case 0:
              pathForResourceStr = @"zh-HK";
            break;
            case 1:
             pathForResourceStr = @"zh-Hans";
            break;
            case 2:
             pathForResourceStr = @"en";
            break;
        default:
            break;
    }
    //zh-Hans en zh-HK
    NSString * path = [bundle pathForResource:pathForResourceStr ofType:@"lproj"];
    NSBundle * languageBundle = [NSBundle bundleWithPath:path];
   return [languageBundle localizedStringForKey:string value:@"" table:nil];
}

方法调用

self.infoLabel.text = localString(@"bluetooth_no_authorization_string");

文件结构

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这个关键都 贴出来了,故此就不上demo了,希望可以帮助大大家