讯飞语音识别Android-Demo

import java.io.UnsupportedEncodingException;

import android.app.Activity;
import android.os.Bundle;
import android.os.Environment;
import android.text.TextUtils;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import com.iflytek.cloud.ErrorCode;
import com.iflytek.cloud.InitListener;
import com.iflytek.cloud.LexiconListener;
import com.iflytek.cloud.RecognizerListener;
import com.iflytek.cloud.RecognizerResult;
import com.iflytek.cloud.SpeechConstant;
import com.iflytek.cloud.SpeechError;
import com.iflytek.cloud.SpeechListener;
import com.iflytek.cloud.SpeechRecognizer;
import com.iflytek.cloud.SpeechUtility;
import com.iflytek.cloud.util.ContactManager.ContactListener;
import com.iflytek.cloud.util.UserWords;

public class MainActivity extends Activity implements OnClickListener {

private static String TAG = "IatDemo";
// 语音听写对象
private SpeechRecognizer mIat;
// 听写结果内容
private EditText mResultText;
// 用户词表下载结果
private String mDownloadResult = "";

private Toast mToast;

private int ret;

private Button startRecording;

private String voiceResult = "";

private TextView text_result;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mIat = SpeechRecognizer.createRecognizer(this, mInitListener);

mToast = Toast.makeText(this, "", Toast.LENGTH_SHORT);
text_result = (TextView) this.findViewById(R.id.text_result);
startRecording = (Button) this.findViewById(R.id.start_recording);
startRecording.setOnClickListener(this);
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

public void getVoice() {
SpeechUtility.createUtility(MainActivity.this, "appid=540593c3");
// 设置参数
setParam();
// 不显示听写对话框
ret = mIat.startListening(recognizerListener);

}

public void setParam() {

mIat.setParameter(SpeechConstant.LANGUAGE, "zh_cn");

// 设置语音前端点
mIat.setParameter(SpeechConstant.VAD_BOS, "4000");
// 设置语音后端点
mIat.setParameter(SpeechConstant.VAD_EOS, "1000");
// 设置标点符号
mIat.setParameter(SpeechConstant.ASR_PTT, "1");
// 设置音频保存路径
mIat.setParameter(SpeechConstant.ASR_AUDIO_PATH, Environment.getExternalStorageDirectory()+"/xunfei");
}

/**
* 初始化监听器。
*/
private InitListener mInitListener = new InitListener() {

@Override
public void onInit(int code) {
Log.d(TAG, "SpeechRecognizer init() code = " + code);
if (code == ErrorCode.SUCCESS) {
Toast.makeText(MainActivity.this, "init success", 0).show();
}
}
};

/**
* 用户词表下载监听器。
*/
private SpeechListener downloadlistener = new SpeechListener() {

@Override
public void onData(byte[] data) {
try {
if (data != null && data.length > 1)
mDownloadResult = new String(data, "utf-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}

}

@Override
public void onCompleted(SpeechError error) {
if (error != null) {

} else if (TextUtils.isEmpty(mDownloadResult)) {

} else {
mResultText.setText("");
UserWords userwords = new UserWords(mDownloadResult.toString());
if (userwords == null || userwords.getKeys() == null) {

return;
}
for (String key : userwords.getKeys()) {
mResultText.append(key + ":");
for (String word : userwords.getWords(key)) {
mResultText.append(word + ",");
}
mResultText.append("\n");
}

}
}

@Override
public void onEvent(int eventType, Bundle params) {
}

};

/**
* 听写监听器。
*/
private RecognizerListener recognizerListener = new RecognizerListener() {

@Override
public void onBeginOfSpeech() {
Toast.makeText(MainActivity.this, "begin speech", 0).show();
}

@Override
public void onError(SpeechError error) {
Toast.makeText(MainActivity.this, error.getErrorDescription(), 0).show();
}

@Override
public void onEndOfSpeech() {
Toast.makeText(MainActivity.this, "end", 0).show();
}

@Override
public void onEvent(int eventType, int arg1, int arg2, String msg) {
Toast.makeText(MainActivity.this, "on event", 0).show();
}

@Override
public void onResult(RecognizerResult results, boolean isLast) {
String text = JsonParser.parseIatResult(results.getResultString());
voiceResult = voiceResult + text;
if (isLast) {
text_result.setText(voiceResult);
}
}

@Override
public void onVolumeChanged(int volume) {

}

};

@Override
protected void onResume() {
// SpeechUtility.getUtility().checkServiceInstalled();
super.onResume();
}

@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.start_recording:
getVoice();
break;
}
}

}