Java 如果未捕获任何内容，则取消语音识别

我正在尝试开发一款能够倾听和回应用户的应用程序。我正在努力使它尽可能免提

我的问题是，如果用户没有及时响应，SpeechRecognition将超时，用户需要按下按钮重新开始收听

*如果应用程序没有听到任何声音，它会提示重试并重新启动侦听器，我有没有办法解决这个问题

代码：

//需要用户输入时调用的函数。
私有无效promptSpeechInput（）{
意向意向=新意向（识别意向、行动、识别言语）；
intent.putExtra（识别器intent.EXTRA_语言_模型，
识别者意图、语言、模型、自由形式）；
intent.putExtra（RecognizerIntent.EXTRA_语言，Locale.getDefault（））；
试一试{
startActivityForResult（意图、请求代码、语音输入）；
}捕获（ActivityNotFoundException a）{
Toast.makeText（getApplicationContext（），
getString（不支持R.string.speech），
吐司。长度（短）。show（）；
}
}
/**
*接收语音输入
* */
@凌驾
受保护的void onActivityResult（int请求代码、int结果代码、意图数据）{
super.onActivityResult（请求代码、结果代码、数据）；
System.out.println（“请求代码：“+requestCode”）；
开关（请求代码）{
案例请求代码语音输入：{
System.out.println（“resultCode:+resultCode”）；
if（resultCode==RESULT\u OK&&null！=数据）{
ArrayList结果=data.getStringArrayListExtra（RecognizerIntent.EXTRA_结果）；
txtSpeechInput.setText（result.get（0））；
input=result.get（0.toLowerCase（）；
}
打破
}
}
}

我还有一些代码，可以向用户读取文本，然后在完成后提示语音输入

---

请让我知道，如果我可以提供更多的细节或代码。多谢

要在不点击“麦克风按钮”的情况下实现谷歌语音免提，您必须为识别器创建自己的类，我在xamarin android中编写了代码，因此它在java上非常类似：

Public class CustomRecognizer : Java.Lang.Object, IRecognitionListener, TextToSpeech.IOnInitListener
{
private SpeechRecognizer _speech;
private Intent _speechIntent;


public string Words;


public CustomRecognizer(Context _context)
{
    this._context = _context;
    Words = "";
    _speech = SpeechRecognizer.CreateSpeechRecognizer(this._context);
    _speech.SetRecognitionListener(this);
    _speechIntent = new Intent(RecognizerIntent.ActionRecognizeSpeech);
    _speechIntent.PutExtra(RecognizerIntent.ExtraLanguageModel, RecognizerIntent.LanguageModelFreeForm);
    _speechIntent.PutExtra(RecognizerIntent.ActionRecognizeSpeech, RecognizerIntent.ExtraPreferOffline);
    _speechIntent.PutExtra(RecognizerIntent.ExtraSpeechInputCompleteSilenceLengthMillis, 1000); 
    _speechIntent.PutExtra(RecognizerIntent.ExtraSpeechInputPossiblyCompleteSilenceLengthMillis, 1000);
    _speechIntent.PutExtra(RecognizerIntent.ExtraSpeechInputMinimumLengthMillis, 1500);
}

void startover()
{
    _speech.Destroy();
    _speech = SpeechRecognizer.CreateSpeechRecognizer(this._context);
    _speech.SetRecognitionListener(this);
    _speechIntent = new Intent(RecognizerIntent.ActionRecognizeSpeech);
    _speechIntent.PutExtra(RecognizerIntent.ExtraSpeechInputCompleteSilenceLengthMillis, 1000);
    _speechIntent.PutExtra(RecognizerIntent.ExtraSpeechInputPossiblyCompleteSilenceLengthMillis, 1000);
    _speechIntent.PutExtra(RecognizerIntent.ExtraSpeechInputMinimumLengthMillis, 1500);
StartListening();
}
public void StartListening()
{
    _speech.StartListening(_speechIntent);
}

public void StopListening()
{
    _speech.StopListening();
}

public void OnBeginningOfSpeech()
{

}

public void OnBufferReceived(byte[] buffer)
{
}

public void OnEndOfSpeech()
{

}

public void OnError([GeneratedEnum] SpeechRecognizerError error)
{
    Words = error.ToString();
    startover();
}

当识别器超时时，它将调用一个错误事件

---

. 在我的代码中，我使用startover（）重新开始录制。

这个答案对我来说很有用，只是做了一些小改动。我很高兴能够使用这种方法，而不是我以前使用的方法，即为侦听器使用服务。非常感谢。

Public class CustomRecognizer : Java.Lang.Object, IRecognitionListener, TextToSpeech.IOnInitListener
{
private SpeechRecognizer _speech;
private Intent _speechIntent;


public string Words;


public CustomRecognizer(Context _context)
{
    this._context = _context;
    Words = "";
    _speech = SpeechRecognizer.CreateSpeechRecognizer(this._context);
    _speech.SetRecognitionListener(this);
    _speechIntent = new Intent(RecognizerIntent.ActionRecognizeSpeech);
    _speechIntent.PutExtra(RecognizerIntent.ExtraLanguageModel, RecognizerIntent.LanguageModelFreeForm);
    _speechIntent.PutExtra(RecognizerIntent.ActionRecognizeSpeech, RecognizerIntent.ExtraPreferOffline);
    _speechIntent.PutExtra(RecognizerIntent.ExtraSpeechInputCompleteSilenceLengthMillis, 1000); 
    _speechIntent.PutExtra(RecognizerIntent.ExtraSpeechInputPossiblyCompleteSilenceLengthMillis, 1000);
    _speechIntent.PutExtra(RecognizerIntent.ExtraSpeechInputMinimumLengthMillis, 1500);
}

void startover()
{
    _speech.Destroy();
    _speech = SpeechRecognizer.CreateSpeechRecognizer(this._context);
    _speech.SetRecognitionListener(this);
    _speechIntent = new Intent(RecognizerIntent.ActionRecognizeSpeech);
    _speechIntent.PutExtra(RecognizerIntent.ExtraSpeechInputCompleteSilenceLengthMillis, 1000);
    _speechIntent.PutExtra(RecognizerIntent.ExtraSpeechInputPossiblyCompleteSilenceLengthMillis, 1000);
    _speechIntent.PutExtra(RecognizerIntent.ExtraSpeechInputMinimumLengthMillis, 1500);
StartListening();
}
public void StartListening()
{
    _speech.StartListening(_speechIntent);
}

public void StopListening()
{
    _speech.StopListening();
}

public void OnBeginningOfSpeech()
{

}

public void OnBufferReceived(byte[] buffer)
{
}

public void OnEndOfSpeech()
{

}

public void OnError([GeneratedEnum] SpeechRecognizerError error)
{
    Words = error.ToString();
    startover();
}