구글 음성 인식(Voice Recognition)
활용예제
public class VoiceRecognition {
private PackageManager pm;
public final int VOICE_RECOGNITION_REQUEST_CODE = 1234;
public VoiceRecognition(Context ctx) {
this.pm = ctx.getPackageManager();
}
// 음성 인식을 지원하는지 확인
public boolean recognitionAvailable() {
List<ResolveInfo> activities = pm.queryIntentActivities(new Intent(
RecognizerIntent.ACTION_RECOGNIZE_SPEECH), 0);
if (activities.size() != 0) {
return true;
// 지원할 경우 true 반환
} else {
return false;
// 지원하지 않을 경우 false 반환
}
}
// 구글 음성 인식 intent 생성
public Intent getVoiceRecognitionIntent(String message) {
Intent intent = new Intent(
RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
intent.putExtra(RecognizerIntent.EXTRA_PROMPT, message);
return intent;
}
}
public class MainActivity extends ActionBarActivity {
private VoiceRecognition voiceRecognition;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
startVoiceRecognition();
}
// 음성 인식 시작
private void startVoiceRecognition() {
voiceRecognition = new VoiceRecognition(MainActivity.this);
if (voiceRecognition.recognitionAvailable()) {
Intent intent = voiceRecognition
.getVoiceRecognitionIntent("Speak now");
startActivityForResult(intent,
voiceRecognition.VOICE_RECOGNITION_REQUEST_CODE);
} else {
Toast toast = Toast.makeText(MainActivity.this,
"Voice recognition is not available.", Toast.LENGTH_SHORT);
toast.show();
}
}
// 음성 인식 결과
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode ==
voiceRecognition.VOICE_RECOGNITION_REQUEST_CODE
&& resultCode == -1) {
String result = data.getStringArrayListExtra(
RecognizerIntent.EXTRA_RESULTS).get(0);
// 이 부분에서 result 를 가지고 검색을 하거나, 명령을 실행 하면 됨
Toast toast = Toast.makeText(MainActivity.this, result,
Toast.LENGTH_SHORT);
toast.show();
}
super.onActivityResult(requestCode, resultCode, data);
}
}
public class VoiceRecognition {
private PackageManager pm;
public final int VOICE_RECOGNITION_REQUEST_CODE = 1234;
public VoiceRecognition(Context ctx) {
this.pm = ctx.getPackageManager();
}
// 음성 인식을 지원하는지 확인
public boolean recognitionAvailable() {
List<ResolveInfo> activities = pm.queryIntentActivities(new Intent(
RecognizerIntent.ACTION_RECOGNIZE_SPEECH), 0);
if (activities.size() != 0) {
return true;
// 지원할 경우 true 반환
} else {
return false;
// 지원하지 않을 경우 false 반환
}
}
// 구글 음성 인식 intent 생성
public Intent getVoiceRecognitionIntent(String message) {
Intent intent = new Intent(
RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
intent.putExtra(RecognizerIntent.EXTRA_PROMPT, message);
return intent;
}
}
public class MainActivity extends ActionBarActivity {
private VoiceRecognition voiceRecognition;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
startVoiceRecognition();
}
// 음성 인식 시작
private void startVoiceRecognition() {
voiceRecognition = new VoiceRecognition(MainActivity.this);
if (voiceRecognition.recognitionAvailable()) {
Intent intent = voiceRecognition
.getVoiceRecognitionIntent("Speak now");
startActivityForResult(intent,
voiceRecognition.VOICE_RECOGNITION_REQUEST_CODE);
} else {
Toast toast = Toast.makeText(MainActivity.this,
"Voice recognition is not available.", Toast.LENGTH_SHORT);
toast.show();
}
}
// 음성 인식 결과
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode ==
voiceRecognition.VOICE_RECOGNITION_REQUEST_CODE
&& resultCode == -1) {
String result = data.getStringArrayListExtra(
RecognizerIntent.EXTRA_RESULTS).get(0);
// 이 부분에서 result 를 가지고 검색을 하거나, 명령을 실행 하면 됨
Toast toast = Toast.makeText(MainActivity.this, result,
Toast.LENGTH_SHORT);
toast.show();
}
super.onActivityResult(requestCode, resultCode, data);
}
}
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