在android中，如何使用tts、stt来制作用户与应用之间进行通信的应用？

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

import android.speech.tts.TextToSpeech;

public class MainActivity extends AppCompatActivity implements TextToSpeech.OnInitListener {
    private TextToSpeech tts;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        tts = new TextToSpeech(this, this);
    }

    @Override
    public void onInit(int status) {
        if (status == TextToSpeech.SUCCESS) {
            int result = tts.setLanguage(Locale.US);
            if (result == TextToSpeech.LANG_MISSING_DATA || result == TextToSpeech.LANG_NOT_SUPPORTED) {
                Log.e("TTS", "Language not supported");
            } else {
                // TTS初始化成功，可以进行文本转语音操作
            }
        } else {
            Log.e("TTS", "Initialization failed");
        }
    }

    @Override
    protected void onDestroy() {
        if (tts != null) {
            tts.stop();
            tts.shutdown();
        }
        super.onDestroy();
    }
}

String text = "Hello, welcome to the application!";
tts.speak(text, TextToSpeech.QUEUE_FLUSH, null);

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

import android.speech.RecognitionListener;
import android.speech.RecognizerIntent;
import android.speech.SpeechRecognizer;

public class MainActivity extends AppCompatActivity implements RecognitionListener {
    private SpeechRecognizer speechRecognizer;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        speechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);
        speechRecognizer.setRecognitionListener(this);
    }

    @Override
    public void onReadyForSpeech(Bundle params) {
        // 准备开始语音输入
    }

    @Override
    public void onBeginningOfSpeech() {
        // 开始语音输入
    }

    @Override
    public void onEndOfSpeech() {
        // 结束语音输入
    }

    @Override
    public void onError(int error) {
        // 语音识别错误处理
    }

    @Override
    public void onResults(Bundle results) {
        // 获取语音识别结果
        ArrayList<String> matches = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
        if (matches != null && !matches.isEmpty()) {
            String text = matches.get(0);
            // 可以使用识别到的文本进行后续处理
        }
    }

    @Override
    protected void onDestroy() {
        if (speechRecognizer != null) {
            speechRecognizer.destroy();
        }
        super.onDestroy();
    }
}

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());
intent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Speak something...");
speechRecognizer.startListening(intent);