react-native-ifly/android/src/main/java/com/xunfei/XunFeiMoudle.java

package com.xunfei;

import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.media.AudioManager;
import android.os.Bundle;
import android.os.Environment;
import android.widget.Toast;

import com.facebook.react.bridge.ReactApplicationContext;
import com.facebook.react.bridge.ReactContext;
import com.facebook.react.bridge.ReactContextBaseJavaModule;
import com.facebook.react.bridge.ReactMethod;
import com.iflytek.cloud.ErrorCode;
import com.iflytek.cloud.InitListener;
import com.iflytek.cloud.SpeechConstant;
import com.iflytek.cloud.SpeechError;
import com.iflytek.cloud.SpeechRecognizer;
import com.iflytek.cloud.SpeechSynthesizer;
import com.iflytek.cloud.SpeechUtility;
import com.iflytek.cloud.SynthesizerListener;
import com.iflytek.cloud.util.ResourceUtil;

/**
 * Created by haoxinlei on 2018/3/20.
 */

public class XunFeiMoudle extends ReactContextBaseJavaModule {

    private static SpeechSynthesizer mTts;
    private static Context mContext;
    private ReactContext rctContext;

    public XunFeiMoudle(final ReactApplicationContext reactContext) {
        super(reactContext);
        rctContext = reactContext;
    }

    @Override
    public String getName() {
        return "XunFeiAndroid";
    }

    public static void init(final Context context) {
        mContext = context;
        SpeechUtility.createUtility(context, SpeechConstant.APPID + "=" + getMetaData("XUNFEI_ID"));
        mTts = getSpeechSynthesizer(context);
    }

    public static SpeechSynthesizer getSpeechSynthesizer(final Context context){
        return SpeechSynthesizer.createSynthesizer(context, new InitListener() {
            @Override
            public void onInit(int i) {
                if (i != ErrorCode.SUCCESS) {
                    Toast.makeText(context, "语音播报初始化失败", Toast.LENGTH_SHORT).show();
                } else {
                    setParam();
                }
            }
        });
    }

    private static void setParam() {
        // 清空参数
        mTts.setParameter(SpeechConstant.PARAMS, null);
        //设置合成

        //设置使用本地引擎
        mTts.setParameter(SpeechConstant.ENGINE_TYPE, SpeechConstant.TYPE_LOCAL);
        //设置发音人资源路径
        mTts.setParameter(ResourceUtil.TTS_RES_PATH, getResourcePath());
        //设置合成语速
        mTts.setParameter(SpeechConstant.SPEED, "50");
        //设置合成音调
        mTts.setParameter(SpeechConstant.PITCH, "50");
        //设置合成音量
        mTts.setParameter(SpeechConstant.VOLUME, "50");
        //设置播放器音频流类型
        mTts.setParameter(SpeechConstant.STREAM_TYPE, String.valueOf(AudioManager.STREAM_MUSIC));

        // 设置播放合成音频打断音乐播放，默认为true
        mTts.setParameter(SpeechConstant.KEY_REQUEST_FOCUS, "true");

        // 设置音频保存路径，保存音频格式支持pcm、wav，设置路径为sd卡请注意WRITE_EXTERNAL_STORAGE权限
        // 注：AUDIO_FORMAT参数语记需要更新版本才能生效
        mTts.setParameter(SpeechConstant.AUDIO_FORMAT, "wav");
        mTts.setParameter(SpeechConstant.TTS_AUDIO_PATH, Environment.getExternalStorageDirectory() + "/msc/tts.wav");
    }

    //获取发音人资源路径
    private static String getResourcePath() {
        StringBuffer tempBuffer = new StringBuffer();
        //合成通用资源
        tempBuffer.append(ResourceUtil.generateResourcePath(mContext, ResourceUtil.RESOURCE_TYPE.assets, "tts/common.jet"));
        tempBuffer.append(";");
        //发音人资源
        tempBuffer.append(ResourceUtil.generateResourcePath(mContext, ResourceUtil.RESOURCE_TYPE.assets, "tts/" + "xiaoyan.jet"));
        return tempBuffer.toString();
    }

    public static String getMetaData(String key) {
        try {
            ApplicationInfo applicationInfo = mContext.getPackageManager().getApplicationInfo(mContext.getPackageName(), PackageManager.GET_META_DATA);
            return applicationInfo.metaData.getString(key);
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        return "";
    }

    @ReactMethod
    public void textToSpeech(final String text) {
        if (mTts!=null){
            mTts.startSpeaking(text, null);
        }else {
            mTts = getSpeechSynthesizer(mContext);
            mTts.startSpeaking(text,null);
        }
    }

}