Java tutorial
package com.baidu.android.voicedemo; import android.app.Activity; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.net.wifi.WifiManager; import android.os.Bundle; import android.os.Handler; import android.preference.PreferenceManager; import android.speech.RecognitionListener; import android.speech.SpeechRecognizer; import android.util.Log; import android.view.View; import android.widget.*; import com.baidu.speech.VoiceRecognitionService; import com.baidu.speech.recognizerdemo.R; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import java.util.*; public class ApiActivity extends Activity implements RecognitionListener { private static final String TAG = "Sdk2Api"; private static final int REQUEST_UI = 1; private TextView txtLog; private Button btn; private Button setting; public static final int STATUS_None = 0; public static final int STATUS_WaitingReady = 2; public static final int STATUS_Ready = 3; public static final int STATUS_Speaking = 4; public static final int STATUS_Recognition = 5; private SpeechRecognizer speechRecognizer; private int status = STATUS_None; private TextView txtResult; private long speechEndTime = -1; private static final int EVENT_ERROR = 11; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.sdk2_api); txtResult = (TextView) findViewById(R.id.txtResult); txtLog = (TextView) findViewById(R.id.txtLog); btn = (Button) findViewById(R.id.btn); setting = (Button) findViewById(R.id.setting); speechRecognizer = SpeechRecognizer.createSpeechRecognizer(this, new ComponentName(this, VoiceRecognitionService.class)); speechRecognizer.setRecognitionListener(this); setting.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent("com.baidu.speech.asr.demo.setting"); startActivity(intent); } }); btn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(ApiActivity.this); boolean api = sp.getBoolean("api", false); if (api) { switch (status) { case STATUS_None: start(); btn.setText("?"); status = STATUS_WaitingReady; break; case STATUS_WaitingReady: cancel(); status = STATUS_None; btn.setText(""); break; case STATUS_Ready: cancel(); status = STATUS_None; btn.setText(""); break; case STATUS_Speaking: stop(); status = STATUS_Recognition; btn.setText(""); break; case STATUS_Recognition: cancel(); status = STATUS_None; btn.setText(""); break; } } else { start(); } } }); } @Override protected void onDestroy() { speechRecognizer.destroy(); super.onDestroy(); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); if (resultCode == RESULT_OK) { onResults(data.getExtras()); } } public void bindParams(Intent intent) { SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this); if (sp.getBoolean("tips_sound", true)) { intent.putExtra(Constant.EXTRA_SOUND_START, R.raw.bdspeech_recognition_start); intent.putExtra(Constant.EXTRA_SOUND_END, R.raw.bdspeech_speech_end); intent.putExtra(Constant.EXTRA_SOUND_SUCCESS, R.raw.bdspeech_recognition_success); intent.putExtra(Constant.EXTRA_SOUND_ERROR, R.raw.bdspeech_recognition_error); intent.putExtra(Constant.EXTRA_SOUND_CANCEL, R.raw.bdspeech_recognition_cancel); } if (sp.contains(Constant.EXTRA_INFILE)) { String tmp = sp.getString(Constant.EXTRA_INFILE, "").replaceAll(",.*", "").trim(); intent.putExtra(Constant.EXTRA_INFILE, tmp); } if (sp.getBoolean(Constant.EXTRA_OUTFILE, false)) { intent.putExtra(Constant.EXTRA_OUTFILE, "sdcard/outfile.pcm"); } if (sp.contains(Constant.EXTRA_SAMPLE)) { String tmp = sp.getString(Constant.EXTRA_SAMPLE, "").replaceAll(",.*", "").trim(); if (null != tmp && !"".equals(tmp)) { intent.putExtra(Constant.EXTRA_SAMPLE, Integer.parseInt(tmp)); } } if (sp.contains(Constant.EXTRA_LANGUAGE)) { String tmp = sp.getString(Constant.EXTRA_LANGUAGE, "").replaceAll(",.*", "").trim(); if (null != tmp && !"".equals(tmp)) { intent.putExtra(Constant.EXTRA_LANGUAGE, tmp); } } if (sp.contains(Constant.EXTRA_NLU)) { String tmp = sp.getString(Constant.EXTRA_NLU, "").replaceAll(",.*", "").trim(); if (null != tmp && !"".equals(tmp)) { intent.putExtra(Constant.EXTRA_NLU, tmp); } } if (sp.contains(Constant.EXTRA_VAD)) { String tmp = sp.getString(Constant.EXTRA_VAD, "").replaceAll(",.*", "").trim(); if (null != tmp && !"".equals(tmp)) { intent.putExtra(Constant.EXTRA_VAD, tmp); } } String prop = null; if (sp.contains(Constant.EXTRA_PROP)) { String tmp = sp.getString(Constant.EXTRA_PROP, "").replaceAll(",.*", "").trim(); if (null != tmp && !"".equals(tmp)) { intent.putExtra(Constant.EXTRA_PROP, Integer.parseInt(tmp)); prop = tmp; } } // offline asr { intent.putExtra(Constant.EXTRA_OFFLINE_ASR_BASE_FILE_PATH, "/sdcard/easr/s_1"); intent.putExtra(Constant.EXTRA_LICENSE_FILE_PATH, "/sdcard/easr/license-tmp-20150530.txt"); if (null != prop) { int propInt = Integer.parseInt(prop); if (propInt == 10060) { intent.putExtra(Constant.EXTRA_OFFLINE_LM_RES_FILE_PATH, "/sdcard/easr/s_2_Navi"); } else if (propInt == 20000) { intent.putExtra(Constant.EXTRA_OFFLINE_LM_RES_FILE_PATH, "/sdcard/easr/s_2_InputMethod"); } } intent.putExtra(Constant.EXTRA_OFFLINE_SLOT_DATA, buildTestSlotData()); } } private String buildTestSlotData() { JSONObject slotData = new JSONObject(); JSONArray name = new JSONArray().put("?").put(""); JSONArray song = new JSONArray().put("").put("?"); JSONArray artist = new JSONArray().put("?").put("?"); JSONArray app = new JSONArray().put("").put(""); JSONArray usercommand = new JSONArray().put("?").put(""); try { slotData.put(Constant.EXTRA_OFFLINE_SLOT_NAME, name); slotData.put(Constant.EXTRA_OFFLINE_SLOT_SONG, song); slotData.put(Constant.EXTRA_OFFLINE_SLOT_ARTIST, artist); slotData.put(Constant.EXTRA_OFFLINE_SLOT_APP, app); slotData.put(Constant.EXTRA_OFFLINE_SLOT_USERCOMMAND, usercommand); } catch (JSONException e) { } return slotData.toString(); } private void start() { txtLog.setText(""); print("?"); Intent intent = new Intent(); bindParams(intent); SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(this); { String args = sp.getString("args", ""); if (null != args) { print("?" + args); intent.putExtra("args", args); } } boolean api = sp.getBoolean("api", false); if (api) { speechEndTime = -1; speechRecognizer.startListening(intent); } else { intent.setAction("com.baidu.action.RECOGNIZE_SPEECH"); startActivityForResult(intent, REQUEST_UI); } txtResult.setText(""); } private void stop() { speechRecognizer.stopListening(); print("?"); } private void cancel() { speechRecognizer.cancel(); status = STATUS_None; print("??"); } @Override public void onReadyForSpeech(Bundle params) { status = STATUS_Ready; print("??"); } @Override public void onBeginningOfSpeech() { status = STATUS_Speaking; btn.setText(""); print("??"); } @Override public void onRmsChanged(float rmsdB) { } @Override public void onBufferReceived(byte[] buffer) { } @Override public void onEndOfSpeech() { speechEndTime = System.currentTimeMillis(); status = STATUS_Recognition; print("???"); btn.setText(""); } @Override public void onError(int error) { status = STATUS_None; StringBuilder sb = new StringBuilder(); switch (error) { case SpeechRecognizer.ERROR_AUDIO: sb.append(""); break; case SpeechRecognizer.ERROR_SPEECH_TIMEOUT: sb.append(""); break; case SpeechRecognizer.ERROR_CLIENT: sb.append(""); break; case SpeechRecognizer.ERROR_INSUFFICIENT_PERMISSIONS: sb.append("???"); break; case SpeechRecognizer.ERROR_NETWORK: sb.append(""); break; case SpeechRecognizer.ERROR_NO_MATCH: sb.append("?"); break; case SpeechRecognizer.ERROR_RECOGNIZER_BUSY: sb.append(""); break; case SpeechRecognizer.ERROR_SERVER: sb.append("?"); break; case SpeechRecognizer.ERROR_NETWORK_TIMEOUT: sb.append(""); break; } sb.append(":" + error); print("" + sb.toString()); btn.setText(""); } @Override public void onResults(Bundle results) { long end2finish = System.currentTimeMillis() - speechEndTime; status = STATUS_None; ArrayList<String> nbest = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION); print("?" + Arrays.toString(nbest.toArray(new String[nbest.size()]))); String json_res = results.getString("origin_result"); try { print("origin_result=\n" + new JSONObject(json_res).toString(4)); } catch (Exception e) { print("origin_result=[warning: bad json]\n" + json_res); } btn.setText(""); String strEnd2Finish = ""; if (end2finish < 60 * 1000) { strEnd2Finish = "(waited " + end2finish + "ms)"; } txtResult.setText(nbest.get(0) + strEnd2Finish); } @Override public void onPartialResults(Bundle partialResults) { ArrayList<String> nbest = partialResults.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION); if (nbest.size() > 0) { print("~" + Arrays.toString(nbest.toArray(new String[0]))); txtResult.setText(nbest.get(0)); } } @Override public void onEvent(int eventType, Bundle params) { switch (eventType) { case EVENT_ERROR: String reason = params.get("reason") + ""; print("EVENT_ERROR, " + reason); break; case VoiceRecognitionService.EVENT_ENGINE_SWITCH: int type = params.getInt("engine_type"); print("*?" + (type == 0 ? "" : "")); break; } } private void print(String msg) { txtLog.append(msg + "\n"); ScrollView sv = (ScrollView) txtLog.getParent(); sv.smoothScrollTo(0, 1000000); Log.d(TAG, "----" + msg); } }