在我的应用程序中,我直接使用了SpeechRecognizer。我在Activity的onPause方法中销毁了SpeechRecognizer,并在onResume方法中重新创建它,代码如下:...
public class NoUISpeechActivity extends Activity {
protected static final String CLASS_TAG = "NoUISpeechActivity";
private SpeechRecognizer sr;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_no_uispeech);
sr = getSpeechRecognizer();
}
@Override
protected void onPause() {
Log.i(CLASS_TAG, "on pause called");
if(sr!=null){
sr.stopListening();
sr.cancel();
sr.destroy();
}
super.onPause();
}
@Override
protected void onResume() {
Log.i(CLASS_TAG, "on resume called");
sr = getSpeechRecognizer();
super.onResume();
}
....
private SpeechRecognizer getSpeechRecognizer() {
if(sr == null){
sr = SpeechRecognizer.createSpeechRecognizer(getApplicationContext());
CustomRecognizerListner listner = new CustomRecognizerListner();
listner.setOnListeningCallback(new OnListeningCallbackImp());
sr.setRecognitionListener(listner);
}
return sr;
}
}
当应用程序通过Eclipse首次安装时,会调用SpeechRecognition服务并正确识别语音。但是,当应用程序从暂停状态恢复时,如果尝试识别语音,则会出现“SpeechRecognition:未连接到识别服务”的错误。
我做错了什么?