如何在安卓系统中动态改变TextToSpeech的口音

TextToSpeech tts = new TextToSpeech(context, new TextToSpeech.OnInitListener() {
    @Override
    public void onInit(int status) {
        if (status == TextToSpeech.SUCCESS) {
            // 初始化成功
            int result = tts.setLanguage(Locale.US); // 设置默认语言为美式英语
            if (result == TextToSpeech.LANG_MISSING_DATA || result == TextToSpeech.LANG_NOT_SUPPORTED) {
                // 语言数据丢失或不支持
                Log.e("TTS", "Language not supported");
            }
        } else {
            // 初始化失败
            Log.e("TTS", "Initialization failed");
        }
    }
});

tts.setLanguage(Locale.UK);

tts.setPitch(1.5f); // 设置音调为1.5倍
tts.setSpeechRate(1.2f); // 设置语速为1.2倍

tts.speak("Hello, world!", TextToSpeech.QUEUE_FLUSH, null);