安卓如何实现语音识别

<uses-permission android:name="android.permission.RECORD_AUDIO" />

SpeechRecognizer speechRecognizer = SpeechRecognizer.createSpeechRecognizer(context);

RecognitionListener listener = new RecognitionListener() {
    @Override
    public void onReadyForSpeech(Bundle params) {
        // 当用户开始说话时调用
    }

    @Override
    public void onBeginningOfSpeech() {
        // 当检测到用户开始说话时调用
    }

    @Override
    public void onRmsChanged(float rmsdB) {
        // 音量变化时调用
    }

    @Override
    public void onEndOfSpeech() {
        // 当用户停止说话时调用
    }

    @Override
    public void onError(int error) {
        // 发生错误时调用
    }

    @Override
    public void onResults(Bundle results) {
        // 识别结果可通过results参数获取
    }

    @Override
    public void onPartialResults(Bundle partialResults) {
        // 部分识别结果可通过partialResults参数获取
    }

    @Override
    public void onEvent(int eventType, Bundle params) {
        // 其他事件回调
    }
};

speechRecognizer.setRecognitionListener(listener);

Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());

speechRecognizer.startListening(intent);