TTS语音合成技术-进阶

1. TextToSpeechUtil2类

package comi.example.liy.firstbasicproject.tool;

import android.content.Context;
import android.speech.tts.TextToSpeech;
import android.util.Log;
import android.widget.Toast;

import java.util.Locale;

import comi.example.liy.firstbasicproject.R;

/**
 * Created by liy on 2018-07-11.
 */

public class TextToSpeechUtil2 {

    private static TextToSpeech textToSpeech;

    //获取TextToSpeech对象并设置相关属性
    public static void speak(final Context context, final String text){
        if(textToSpeech == null){
            textToSpeech = new TextToSpeech(context, new TextToSpeech.OnInitListener() {
                @Override
                public void onInit(int status) {
                    if (status == TextToSpeech.SUCCESS) {//装载TTS引擎成功
                        //Locale.getDefault()获取系统默认的区域信息：如系统语言设置为中文则参数为 "zho","CHN"，设置为美式英语则参数为 "eng","USA"
                        int result = textToSpeech.setLanguage(new Locale(Locale.getDefault().getISO3Language(),Locale.getDefault().getISO3Country()));
                        Log.v("ttSpeech_result",result+","+ Locale.getDefault().getISO3Language() + ","+ Locale.getDefault().getISO3Country() + "");//如果打印为-2，说明不支持这种语言
                        if(result == TextToSpeech.LANG_MISSING_DATA || result == TextToSpeech.LANG_NOT_SUPPORTED){
                            Toast.makeText(context,context.getString(R.string.missing_or_unsupported), Toast.LENGTH_SHORT).show();
                        }else {
                            textToSpeech.setPitch(1.0f);// 设置音调，值越大声音越尖（女生），值越小则变成男声,1.0是常规
                            textToSpeech.setSpeechRate(1.0f);// 设置语速
                            textToSpeech.speak(text,TextToSpeech.QUEUE_FLUSH, null);
                        }
                    }else {
                        Toast.makeText(context,context.getString(R.string.load_tts_fail), Toast.LENGTH_SHORT).show();
                    }
                }
            });
        }else {
            textToSpeech.speak(text,TextToSpeech.QUEUE_FLUSH, null);
        }

    }

    //释放TextToSpeech对象
    public static void shutdown(){
        if (textToSpeech != null) {
            textToSpeech.shutdown();
        }

    }
}

2. HomeActivity

public class HomeActivity extends Activity implements ActivityGeneralInterface {
    private Button btnTextToSpeech2;
   
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState); 
        setContentView(R.layout.activity_home);
        initViews();
        initData();
        initListeners();
    }

    @Override
    public void initViews() {
        btnTextToSpeech2 = (Button)findViewById(R.id.activity_main_textToSpeech2);
    }

    @Override
    public void initData() {
        
    }

    @Override
    public void initListeners() {
        
    }

    public void TextToSpeechOnClick2(View view){
        TextToSpeechUtil2.speak(this,getString(R.string.text_to_speech));
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        textToSpeechUtil.shutdown();
    } 

3. ActivityGeneralInterface接口

public interface ActivityGeneralInterface {

    void initViews();
    void initData();
    void initListeners();
}

4. activity_home.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <Button
          android:id="@+id/activity_main_textToSpeech2"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:text="TextToSpeech2"
          android:textAllCaps="false"
          android:onClick="TextToSpeech2OnClick"/>
</LinearLayout>

5、资源文件string.xml

 <string name="text_to_speech">文字转语音</string>