安卓整合百度语音识别(Android studio Demo)

 1.程序入口XML

2.需要添加的权限

3.需要添加的百度接口授权配置文件

4.主程序入口界面XML（activity_main.xml）

5.主程序MainActivity代码

package activitytest.example.com.speechtest;

import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import com.baidu.speech.EventManager;
import com.baidu.speech.EventManagerFactory;
import com.baidu.speech.asr.SpeechConstant;

import org.json.JSONException;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.Map;


public class MainActivity extends AppCompatActivity implements com.baidu.speech.EventListener {
    protected TextView txtResult;
    protected Button btn;
    protected Button stopBtn;
    private EventManager asr;
    private Context mContext;

    private void start(){
        Toast.makeText(mContext, "请开始说话", Toast.LENGTH_SHORT).show();

        Map params = new LinkedHashMap<>();//传递Map的参数，会将Map自动序列化为json
        String event = null;
        event = SpeechConstant.ASR_START;
        params.put(SpeechConstant.ACCEPT_AUDIO_VOLUME,false);//回调当前音量
        String json = null;
        json = new JSONObject(params).toString();//demo用json数据来做数据交换的方式
        asr.send(event, json, null, 0, 0);// 初始化EventManager对象,这个实例只能创建一次，就是我们上方创建的asr，此处开始传入
    }
    private void stop(){
        txtResult.append("停止识别：ASR_STOP");
        asr.send(SpeechConstant.ASR_STOP, null, null, 0, 0);//此处停止
    }
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mContext=this;
        initView();
        initPermission();
        asr = EventManagerFactory.create(this,"asr");//注册自己的输出事件类
        asr.registerListener(this);//// 调用 EventListener 中 onEvent方法

        btn.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                int action = event.getAction();
                switch (action) {
                    case MotionEvent.ACTION_DOWN:
                        start();
                        /*mStartSpeechButton.setBackgroundResource(
                                R.drawable.bdspeech_btn_orangelight_pressed);*/
                        break;
                    case MotionEvent.ACTION_UP:
                        stop();
                        /*mStartSpeechButton.setBackgroundResource(
                                R.drawable.bdspeech_btn_orangelight_normal);*/
                        break;
                    default:
                        return false;
                }

                return true;
            }
        });
    }

    @Override
    protected void onPause() {
        super.onPause();
        asr.send(SpeechConstant.ASR_CANCEL, "{}", null, 0, 0);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        asr.send(SpeechConstant.ASR_CANCEL, "{}", null, 0, 0);
        asr.unregisterListener(this);//退出事件管理器
        // 必须与registerListener成对出现，否则可能造成内存泄露
    }
    public void onEvent(String name, String params, byte[] data, int offset, int length) {
        String resultTxt = null;
        if (name.equals(SpeechConstant.CALLBACK_EVENT_ASR_PARTIAL)){//识别结果参数
            if (params.contains("\"final_result\"")){//语义结果值
                try {
                    JSONObject json = new JSONObject(params);
                    String result = json.getString("best_result");//取得key的识别结果
                    resultTxt = result;
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        }
        if (resultTxt != null){
            resultTxt += "\n";
            txtResult.append(resultTxt);
        }
    }
    private void initView() {
        txtResult = findViewById(R.id.txtResult);
        btn = findViewById(R.id.btn);
        stopBtn = findViewById(R.id.btn_stop);
    }
    private void initPermission() {
        String permissions[] = {Manifest.permission.RECORD_AUDIO,
                Manifest.permission.ACCESS_NETWORK_STATE,
                Manifest.permission.INTERNET,
                Manifest.permission.READ_PHONE_STATE,
                Manifest.permission.WRITE_EXTERNAL_STORAGE
        };

        ArrayList toApplyList = new ArrayList();

        for (String perm :permissions){
            if (PackageManager.PERMISSION_GRANTED != ContextCompat.checkSelfPermission(this, perm)) {
                toApplyList.add(perm);
                //进入到这里代表没有权限.

            }
        }
        String tmpList[] = new String[toApplyList.size()];
        if (!toApplyList.isEmpty()){
            ActivityCompat.requestPermissions(this, toApplyList.toArray(tmpList), 123);
        }

    }
    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        // 此处为android 6.0以上动态授权的回调，用户自行实现。

    }

}

适合小白的一个demo

源码下载地址