‘新的NativeEventEmitter()’是用一个非空参数调用的，而没有必需的`addListener`方法。

Question

我想在我的应用程序中添加一个语音搜索功能，我需要能够将语音转换成文本，所以我使用了这个库。

@react-native-community/voice

但我知道这个错误，

 WARN  `new NativeEventEmitter()` was called with a non-null argument without the required `addListener` method.
 WARN  `new NativeEventEmitter()` was called with a non-null argument without the required `removeListeners` method.

它过去一直致力于Reactinative.63，软件包的名称是，

react-native-voice

但是现在我在使用ReactiveNative.67时遇到了一个问题

我感谢任何愿意帮助我的人，我还有一个问题要问。还有另一个更好的语言转换为文本的库吗？

最后，这是我的代码，它使用的是ReactiveNative.63，但现在它不能工作了。

import Voice from 'react-native-voice';

const App = () => {
  const [pitch, setPitch] = useState('');
  const [error, setError] = useState('');
  const [end, setEnd] = useState('');
  const [started, setStarted] = useState('');
  const [results, setResults] = useState([]);
  const [partialResults, setPartialResults] = useState([]);

  useEffect(() => {
    //Setting callbacks for the process status
    Voice.onSpeechStart = onSpeechStart;
    Voice.onSpeechEnd = onSpeechEnd;
    Voice.onSpeechError = onSpeechError;
    Voice.onSpeechResults = onSpeechResults;
    Voice.onSpeechPartialResults = onSpeechPartialResults;
    Voice.onSpeechVolumeChanged = onSpeechVolumeChanged;

    return () => {
      //destroy the process after switching the screen
      Voice.destroy().then(Voice.removeAllListeners);
    };
  }, []);

  const onSpeechStart = (e) => {
    //Invoked when .start() is called without error
    console.log('onSpeechStart: ', e);
    setStarted('√');
  };

  const onSpeechEnd = (e) => {
    //Invoked when SpeechRecognizer stops recognition
    console.log('onSpeechEnd: ', e);
    setEnd('√');
  };

  const onSpeechError = (e) => {
    //Invoked when an error occurs.
    console.log('onSpeechError: ', e);
    setError(JSON.stringify(e.error));
  };

  const onSpeechResults = (e) => {
    //Invoked when SpeechRecognizer is finished recognizing
    console.log('onSpeechResults: ', e);
    setResults(e.value);
  };

  const onSpeechPartialResults = (e) => {
    //Invoked when any results are computed
    console.log('onSpeechPartialResults: ', e);
    setPartialResults(e.value);
  };

  const onSpeechVolumeChanged = (e) => {
    //Invoked when pitch that is recognized changed
    console.log('onSpeechVolumeChanged: ', e);
    setPitch(e.value);
  };

  const startRecognizing = async () => {
    //Starts listening for speech for a specific locale
    try {
      await Voice.start('ar-EG');
      setPitch('');
      setError('');
      setStarted('');
      setResults([]);
      setPartialResults([]);
      setEnd('');
    } catch (e) {
      //eslint-disable-next-line
      console.error(e);
    }
  };

  const stopRecognizing = async () => {
    //Stops listening for speech
    try {
      await Voice.stop();
    } catch (e) {
      //eslint-disable-next-line
      console.error(e);
    }
  };

  const cancelRecognizing = async () => {
    //Cancels the speech recognition
    try {
      await Voice.cancel();
    } catch (e) {
      //eslint-disable-next-line
      console.error(e);
    }
  };

  const destroyRecognizer = async () => {
    //Destroys the current SpeechRecognizer instance
    try {
      await Voice.destroy();
      setPitch('');
      setError('');
      setStarted('');
      setResults([]);
      setPartialResults([]);
      setEnd('');
    } catch (e) {
      //eslint-disable-next-line
      console.error(e);
    }
  };

Answer 1

我只是向主java模块添加了两个函数：

// Required for rn built in EventEmitter Calls.
@ReactMethod
public void addListener(String eventName) {

}

@ReactMethod
public void removeListeners(Integer count) {

}