【UX】Android语音识别

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package com.paad.texttospeach;import java.util.Locale;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.speech.tts.TextToSpeech;import android.speech.tts.TextToSpeech.Engine;import android.speech.tts.TextToSpeech.OnInitListener;public class MyActivity extends Activity {    /**     * Listing 11-1: Using Text-to-Speech     */    private static int TTS_DATA_CHECK = 1;    private TextToSpeech tts = null;    private boolean ttsIsInit = false;    private void initTextToSpeech() {        Intent intent = new Intent(Engine.ACTION_CHECK_TTS_DATA);        startActivityForResult(intent, TTS_DATA_CHECK);    }    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        if (requestCode == TTS_DATA_CHECK) {            if (resultCode == Engine.CHECK_VOICE_DATA_PASS) {                tts = new TextToSpeech(this, new OnInitListener() {                    public void onInit(int status) {                        if (status == TextToSpeech.SUCCESS) {                            ttsIsInit = true;                            if (tts.isLanguageAvailable(Locale.UK) >= 0)                                tts.setLanguage(Locale.UK);                            tts.setPitch(0.8f);                            tts.setSpeechRate(1.1f);                            speak();                        }                    }                });            } else {                Intent installVoice = new Intent(Engine.ACTION_INSTALL_TTS_DATA);                startActivity(installVoice);            }        }    }    private void speak() {        if (tts != null && ttsIsInit) {            tts.speak("Hello, Android", TextToSpeech.QUEUE_ADD, null);        }    }    @Override    public void onDestroy() {        if (tts != null) {            tts.stop();            tts.shutdown();        }        super.onDestroy();    }    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        initTextToSpeech();    }}
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