TexttoSpeech在第一次点击时不说话需要时间说话

Question

我有一个支持多种语言的应用，它使用文字转语音在RecylerView中说出信息。当选择用法语发言时，它不会在第一次点击时说话需要时间在Android 7.0和8.0中说话。下面是我的 语言适配器：

if (cnt.getCoun().equalsIgnoreCase("German")) {
                     Read.getInstance().setLanguage(Locale.GERMAN);
                } else if (cnt.getCoun().equalsIgnoreCase("French")) {
                    Read.getInstance().setLanguage(Locale.FRENCH);
                }
                else if (cnt.getCoun().equalsIgnoreCase("Italian")) {
                    Read.getInstance().setLanguage(Locale.ITALIAN);
                }
                else if (cnt.getCoun().equalsIgnoreCase("Chinese")) {
                    Read.getInstance().setLanguage( new Locale("zh", "CN", ""));
                }
                else if (cnt.getCoun().equalsIgnoreCase("Japanese")) {
                    Read.getInstance().setLanguage(Locale.JAPANESE);
                }

以下是我的申请文件

public class Read extends Application {
        public TextToSpeech tts;
        private static Read ourInstance;

        public static Read getInstance() {
            return ourInstance;
        }

        @Override
        public void onCreate() {`enter code here`
            super.onCreate();
            ourInstance = this;
            if (tts == null) {
                tts = new TextToSpeech(getInstance(), status -> {
                    status = TextToSpeech.ERROR;
                    if (status == TextToSpeech.SUCCESS) {
                        int result = tts.setLanguage(Locale.GERMAN);

                        if (result == TextToSpeech.LANG_MISSING_DATA
                                || result == TextToSpeech.LANG_NOT_SUPPORTED) {
                            Toast.makeText(getApplicationContext(), "This language is not supported", Toast.LENGTH_SHORT).show();
                        }

                    }
                });
            }


            }
            @TargetApi(Build.VERSION_CODES.LOLLIPOP)
            public void listen(String message, Locale language) {
                try {
                    if (tts != null) {
                        tts.setLanguage(language);
                        tts.setSpeechRate(.5f);
                        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                            tts.speak(message, TextToSpeech.QUEUE_ADD, null, null);
                        } else {
                           tts.speak(message, TextToSpeech.QUEUE_ADD, null);
                        }
                    }

                } catch (Exception e) {
                    e.printStackTrace();
                }
            }



            public int setLanguage(Locale language) {
                    textToSpeech.setLanguage(language);
            }
            public void stop() {
                try {
                    if (textToSpeech != null) 
                    {
                        textToSpeech.stop();
                    }
                }catch(Exception e) {
                    e.printStackTrace();
                }
            }

其他语言没有问题