Android使用百度语音识别的示例代码

sourceSets{   main{     jniLibs.srcDirs=['libs']   } } 

<uses-permission android:name="android.permission.RECORD_AUDIO" /> <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" /> <uses-permission android:name="android.permission.READ_PHONE_STATE" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 

<!-- 请填写应用实际的APP_ID --> <meta-data android:name="com.baidu.speech.APP_ID" android:value="APP ID"/> <!-- 请填写应用实际的API_KEY --> <meta-data android:name="com.baidu.speech.API_KEY" android:value="API_KEY"/> <!-- 请填写应用实际的SECRET_KEY --> <meta-data android:name="com.baidu.speech.SECRET_KEY" android:value="SECRET_KEY"/>  <service android:name="com.baidu.speech.VoiceRecognitionService" android:exported="false" /> 

package com.yjp.speechrecognizer;  import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.speech.RecognitionListener; import android.speech.SpeechRecognizer; import android.widget.Toast;  import com.baidu.speech.VoiceRecognitionService;  public class SpeechRecognizerTool implements RecognitionListener {    public interface ResultsCallback {     void onResults(String result);   }    private Context mContext;    private SpeechRecognizer mSpeechRecognizer;    private ResultsCallback mResultsCallback;    public SpeechRecognizerTool(Context context) {     mContext = context;   }    public synchronized void createTool() {     if (null == mSpeechRecognizer) {        // 创建识别器       mSpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(mContext,           new ComponentName(mContext, VoiceRecognitionService.class));        // 注册监听器       mSpeechRecognizer.setRecognitionListener(this);     }   }    public synchronized void destroyTool() {     mSpeechRecognizer.stopListening();     mSpeechRecognizer.destroy();     mSpeechRecognizer = null;   }    // 开始识别   public void startASR(ResultsCallback callback) {     mResultsCallback = callback;      Intent intent = new Intent();     bindParams(intent);     mSpeechRecognizer.startListening(intent);   }    //停止识别   public void stopASR() {     mSpeechRecognizer.stopListening();   }    private void bindParams(Intent intent) {     // 设置识别参数   }    @Override   public void onReadyForSpeech(Bundle params) {     // 准备就绪     Toast.makeText(mContext, "请开始说话", Toast.LENGTH_SHORT).show();   }    @Override   public void onBeginningOfSpeech() {     // 开始说话处理   }    @Override   public void onRmsChanged(float rmsdB) {     // 音量变化处理   }    @Override   public void onBufferReceived(byte[] buffer) {     // 录音数据传出处理   }    @Override   public void onEndOfSpeech() {     // 说话结束处理   }    @Override   public void onError(int error) {   }    @Override   public void onResults(Bundle results) {      // 最终结果处理     if (mResultsCallback != null) {       String text = results.get(SpeechRecognizer.RESULTS_RECOGNITION)           .toString().replace("]", "").replace("[", "");       mResultsCallback.onResults(text);     }   }    @Override   public void onPartialResults(Bundle partialResults) {     // 临时结果处理   }    @Override   public void onEvent(int eventType, Bundle params) {   } } 

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"   xmlns:tools="http://schemas.android.com/tools"   android:id="@+id/activity_main"   android:layout_width="match_parent"   android:layout_height="match_parent"   android:paddingBottom="@dimen/activity_vertical_margin"   android:paddingLeft="@dimen/activity_horizontal_margin"   android:paddingRight="@dimen/activity_horizontal_margin"   android:paddingTop="@dimen/activity_vertical_margin"   android:orientation="vertical"   android:gravity="center"   tools:context="com.yjp.speechrecognizer.MainActivity">    <Button     android:id="@+id/startSpeechButton"     android:layout_width="60dp"     android:layout_height="40dp"     android:background="@drawable/bdspeech_btn_orangelight_normal"     android:text="按住说话"/>    <TextView     android:id="@+id/speechTextView"     android:layout_margin="10dp"     android:layout_width="wrap_content"     android:layout_height="wrap_content" /> </LinearLayout> 

package com.yjp.speechrecognizer;  import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.MotionEvent; import android.view.View; import android.widget.Button; import android.widget.TextView;  public class MainActivity extends AppCompatActivity implements SpeechRecognizerTool.ResultsCallback {    private Button mStartSpeechButton;   private TextView mTextView;    private SpeechRecognizerTool mSpeechRecognizerTool = new SpeechRecognizerTool(this);    @Override   protected void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.activity_main);      mTextView = (TextView) findViewById(R.id.speechTextView);      mStartSpeechButton = (Button) findViewById(R.id.startSpeechButton);     mStartSpeechButton.setOnTouchListener(new View.OnTouchListener() {       @Override       public boolean onTouch(View v, MotionEvent event) {         int action = event.getAction();         switch (action) {           case MotionEvent.ACTION_DOWN:             mSpeechRecognizerTool.startASR(MainActivity.this);             mStartSpeechButton.setBackgroundResource(                 R.drawable.bdspeech_btn_orangelight_pressed);             break;           case MotionEvent.ACTION_UP:             mSpeechRecognizerTool.stopASR();             mStartSpeechButton.setBackgroundResource(                 R.drawable.bdspeech_btn_orangelight_normal);             break;           default:             return false;         }          return true;       }     });   }    @Override   protected void onStart() {     super.onStart();     mSpeechRecognizerTool.createTool();   }    @Override   protected void onStop() {     super.onStop();     mSpeechRecognizerTool.destroyTool();   }    @Override   public void onResults(String result) {     final String finalResult = result;     MainActivity.this.runOnUiThread(new Runnable() {       @Override       public void run() {         mTextView.setText(finalResult);       }     });   } }