Android通过TextToSpeech实现文字转语音

import android.app.Activity;
import android.os.Bundle;
import android.speech.tts.TextToSpeech;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import java.util.Locale;
public class MainActivity extends Activity implements TextToSpeech.OnInitListener {
    TextToSpeech textToSpeech;
    EditText ed1;
    Button b1;
    String toSpeak;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ed1 = findViewById(R.id.editText);
        b1 = findViewById(R.id.button);
        textToSpeech = new TextToSpeech(getApplicationContext(), this);
        b1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                toSpeak = ed1.getText().toString();
                Toast.makeText(getApplicationContext(), toSpeak, Toast.LENGTH_SHORT).show();
//                textToSpeech.speak(toSpeak, TextToSpeech.QUEUE_FLUSH, null);
                textToSpeech.speak(toSpeak, TextToSpeech.QUEUE_ADD, null, null);
            }
        });
    }
    public void onPause() {
        if (textToSpeech != null) {
            textToSpeech.stop();
            textToSpeech.shutdown();
        }
        super.onPause();
    }
    @Override
    public void onInit(int status) {
        //判断是否转化成功
        if (status == TextToSpeech.SUCCESS) {
            //设置语言为中文
            int languageCode = textToSpeech.setLanguage(Locale.CHINA);
            //判断是否支持这种语言，Android原生不支持中文，使用科大讯飞的tts引擎就可以了
            if (languageCode == TextToSpeech.LANG_NOT_SUPPORTED) {
                Log.d("TAG", "onInit: 不支持这种语言");
            } else {
                //不支持就改成英文
                textToSpeech.setLanguage(Locale.US);
            }
            //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.setPitch(1.0f);
            //设置语速
            textToSpeech.setSpeechRate(1.0f);
            //在onInIt方法里直接调用tts的播报功能
//            textToSpeech.speak("李佩伦打卡成功", TextToSpeech.QUEUE_ADD, null);
        }
    }
}

二、效果：输入‘中文’点击按钮发音

 三、Android高版本兼容

        如果在Android11里转语音不发声，并且报错：speak failed:not bound to TTS engine，则需要在AndroidManifest.xml文件中声明如下内容：

四、扩展

1、setLanguage支持的一些语言环境：

 2、TextToSpeech类中的一些其他方法：