[英]How to use in-built voice recognition in my Android app?
我想在我的應用中使用離線語音識別。 設置->“語言和輸入”->“ Google語音輸入”->“離線語音識別”:-我想使用此內置功能。 在下面的代碼中,我嘗試使用Recognizer Intent來實現它,但是它使用了Google語音搜索(可在線運行)。 請幫忙。
public class MainActivity extends AppCompatActivity {
private TextView txtSpeechInput;
private ImageButton btnSpeak;
private final int REQ_CODE_SPEECH_INPUT = 100;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
promptSpeechInput();
//onCreateOptionsMenu();
}
private void promptSpeechInput() {
Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());
intent.putExtra(RecognizerIntent.EXTRA_PROMPT,
getString(R.string.speech_prompt));
try {
startActivityForResult(intent, REQ_CODE_SPEECH_INPUT);
} catch (ActivityNotFoundException a) {
Toast.makeText(getApplicationContext(),
getString(R.string.speech_not_supported),
Toast.LENGTH_SHORT).show();
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case REQ_CODE_SPEECH_INPUT: {
if (resultCode == RESULT_OK && null != data) {
ArrayList<String> result = data
.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
//txtSpeechInput.setText(result.get(0));
{
String a="camera";
if(a.compareTo(result.get(0))==0){
Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (i.resolveActivity(getPackageManager()) != null) {
startActivityForResult(i, 1);
}
}
}
}
break;
}
}
}
好吧,我在這里通過語音向相機發送意圖。 因此,我這里的詞匯量有限。
嘗試這個:
intent.putExtra(RecognizerIntent.EXTRA_PREFER_OFFLINE,true);
注意:這僅適用於API級別23及以上。
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