android语音机器人代码,Android studio开发小型对话机器人app(实例代码)

以下是一个简单的Android语音机器人应用的实例代码，使用Android Studio进行开发。

1. 在布局文件中添加一个TextView和一个Button控件，用于显示对话和启动语音识别：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:id="@+id/dialogue"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textSize="18sp"
        android:padding="10dp" />

    <Button
        android:id="@+id/speech_btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Speak"
        android:layout_below="@id/dialogue"
        android:layout_centerHorizontal="true"/>

</RelativeLayout>

2. 创建一个名为MainActivity的活动，并在其中添加以下代码：

public class MainActivity extends AppCompatActivity {

    private TextView dialogue;
    private Button speechBtn;
    private SpeechRecognizer speechRecognizer;
    private Intent speechRecognizerIntent;
    private String keeper = "";

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

        dialogue = findViewById(R.id.dialogue);
        speechBtn = findViewById(R.id.speech_btn);

        speechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);
        speechRecognizerIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
        speechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
                RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
        speechRecognizerIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());

        speechRecognizer.setRecognitionListener(new RecognitionListener() {
            @Override
            public void onReadyForSpeech(Bundle params) { }

            @Override
            public void onBeginningOfSpeech() { }

            @Override
            public void onRmsChanged(float rmsdB) { }

            @Override
            public void onBufferReceived(byte[] buffer) { }

            @Override
            public void onEndOfSpeech() { }

            @Override
            public void onError(int error) { }

            @Override
            public void onResults(Bundle results) {
                ArrayList<String> matches = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
                if(matches != null){
                    String text = matches.get(0);
                    dialogue.setText(text);
                    processText(text.toLowerCase());
                }
            }

            @Override
            public void onPartialResults(Bundle partialResults) { }

            @Override
            public void onEvent(int eventType, Bundle params) { }
        });

        speechBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                speechRecognizer.startListening(speechRecognizerIntent);
            }
        });
    }

    private void processText(String text) {
        if(text.indexOf("hello") != -1 || text.indexOf("hi") != -1){
            keeper = "Hello, how can I help you?";
            speak();
        }
        else if(text.indexOf("what") != -1 && text.indexOf("name") != -1){
            keeper = "My name is Chatbot";
            speak();
        }
        else if(text.indexOf("how") != -1 && text.indexOf("you") != -1){
            keeper = "I'm doing well, thank you. How about you?";
            speak();
        }
        else if(text.indexOf("bye") != -1){
            keeper = "Goodbye!";
            speak();
            finish();
        }
    }

    private void speak(){
        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP){
            TextToSpeech tts = new TextToSpeech(this, new TextToSpeech.OnInitListener() {
                @Override
                public void onInit(int status) {
                    if(status != TextToSpeech.ERROR){
                        tts.setLanguage(Locale.US);
                        tts.speak(keeper, TextToSpeech.QUEUE_FLUSH, null, null);
                    }
                }
            });
        }
        else {
            Intent intent = new Intent();
            intent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
            startActivityForResult(intent, 1);
        }
    }
}

这个代码使用SpeechRecognizer来捕获用户的语音输入，并使用TextToSpeech来回答用户。它有一些简单的if/else语句来识别用户的输入并生成相应的回答。

请注意，这只是一个简单的示例应用程序，需要进一步扩展才能实现更复杂的对话。