Swift

Question

我正在尝试将文本转语音语言代码（在 BCP 47 中）转换为描述性字符串，以选择要在应用程序中具有文本转语音功能的语言。

预计 -

阿拉伯语（沙特阿拉伯）- ar-SA 中文（中国）-zh-CN 中文（中国香港特别行政区）- zh-HK 中文（台湾）-zh-TW 捷克语（捷克共和国）- cs-CZ

实际 -

ar-SA（固定） cs-CZ（固定）

class func getListOfSupportedLanguages() {
        for voice in (AVSpeechSynthesisVoice.speechVoices()){
            print(voice.language)
            let language = Locale.init(identifier: voice.language)
            print(language.description)
        }
    }

我正在关注这个有用的网站，但得到了不同的结果。

https://useyourloaf.com/blog/synthesized-speech-from-text/

@property (strong, nonatomic) NSArray *languageCodes;
@property (strong, nonatomic) NSDictionary *languageDictionary;
@property (strong, nonatomic) AVSpeechSynthesizer *synthesizer;

- (NSArray *)languageCodes
{
    if (!_languageCodes)
    {
        _languageCodes = [self.languageDictionary keysSortedByValueUsingSelector:@selector(localizedCaseInsensitiveCompare:)];
    }
    return _languageCodes;
}

// Map between language codes and locale specific display name
- (NSDictionary *)languageDictionary
{
    if (!_languageDictionary)
    {
        NSArray *voices = [AVSpeechSynthesisVoice speechVoices];
        NSArray *languages = [voices valueForKey:@"language"];

        NSLocale *currentLocale = [NSLocale autoupdatingCurrentLocale];
        NSMutableDictionary *dictionary = [NSMutableDictionary dictionary];
        for (NSString *code in languages)
        {
            dictionary[code] = [currentLocale displayNameForKey:NSLocaleIdentifier value:code];
        }
        _languageDictionary = dictionary;
    }
    return _languageDictionary;
}

Answer 1

感谢 Matt - NSLocale 有 displayName 而 Locale 没有。根据下面的帖子

NSLocale Swift 3

这是代码-

   class func getListOfSupportedLanguages() {
         let current = Locale.current.languageCode

         for voice in (AVSpeechSynthesisVoice.speechVoices()){
              let language = NSLocale.init(localeIdentifier: current!)
              print(language.displayName(forKey: NSLocale.Key.identifier, value: voice.language)?.description as! String)
         }
   }

输出-

English (Australia)
English (United Kingdom)
English (Ireland)
English (United States)
English (South Africa)

Answer 2

首先要做的是确保将 AVFoundation 库导入到头文件 (.h) 中，该文件将实现 AVSpeechSynthesizer 或 AVSpeechSynthesizer 及其属性和方法不可访问。

例如：#import <AVFoundation/AVFoundation.h>

此 post 中的反馈很好。谢谢大家。

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