我有一个功能齐全的自定义 android 键盘,我必须在其中添加语音识别。这是我拥有的实现的相关部分
public class CustomInputMethodService
extends InputMethodService
implements <random stuff> {
private SpeechRecognizer mSpeechRecognizer;
private RecognitionListener mSpeechlistener;
public void onCreate() {
super.onCreate();
mSpeechRecognizer = SpeechRecognizer.createSpeechRecognizer(this);
mSpeechlistener = new CustomRecognitionListener();
mSpeechRecognizer.setRecognitionListener(mSpeechlistener);
}
@Override
public void onPress(int primaryCode) {
if (primaryCode == KeyCodes.VOICE_INPUT) {
mSpeechRecognizer.startListening(getSpeechIntent());
}else if(..){
...
}
}
private Intent getSpeechIntent() {
Intent speechIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
speechIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
speechIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE, this.getPackageName());
speechIntent.putExtra(RecognizerIntent.EXTRA_PARTIAL_RESULTS, false);
return speechIntent;
}
}
CustomRecognitionListener 的相关方法很简单:
@Override
public void onResults(Bundle results) {
ArrayList<String> matches = results.getStringArrayList(SpeechRecognizer.RESULTS_RECOGNITION);
Log.d(TAG, "onResults: ----> " + matches.get(0));
if(matches != null && matches.size() > 0) {
writeText(matches.get(0));
}
}
这段代码工作得很好。这里的转折是,当 uset 轻按麦克风键时,我想要与谷歌键盘上发生的行为类似的行为:
理想情况下,这将通过以下方式实现:
Intent voiceIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
voiceIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_WEB_SEARCH);
try {
startActivityForResult(voiceIntent, Constants.RESULT_SPEECH);
} catch (ActivityNotFoundException ex) {
DebugLog.e(TAG, "Not found excpetion onKeyDown: " + ex);
}
但是,由于键侦听器已打开并且 InputMethodService 我无法调用 startActivityForResult。实现这一目标的理想方法是什么?我是否应该简单地开始一个没有布局的新活动并对 inputMethodService 进行回调?看起来很乱