使用TextToSpeech与RecognizerIntent（安卓）

问题描述：

我试图结合使用RecognizerIntent和TextToSpeech使手机响应用户给出的某些命令使用RecognizerIntent。
onActivityResult方法中的for循环检查用户对文本字符串数组的可能输入。
运行日志猫消息，但不会说文字。使用TextToSpeech与RecognizerIntent（安卓）

这里是我的Java代码：

import java.util.ArrayList; 
import java.util.Locale; 
import android.app.Activity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.speech.RecognizerIntent; 
import android.speech.tts.TextToSpeech; 
import android.util.Log; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 

public class TextVoice extends Activity implements OnClickListener { 

    static final String[] texts = { "Hello", "Welcome", "Nice to meet you" }; 
    static final int check = 111; 

    ArrayList<String> results; 
    TextToSpeech tts; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.textvoice); 

     Button b = (Button) findViewById(R.id.bTextToVoice); 
     b.setOnClickListener(this); 
     Log.println(Log.DEBUG, "voice", "Startet"); 

     tts = new TextToSpeech(TextVoice.this, new TextToSpeech.OnInitListener() { 

      @Override 
      public void onInit(int status) { 
       if (status != TextToSpeech.ERROR) { 
        tts.setLanguage(Locale.US); 
       } 
      } 
     }); 
    } 

    // @Override 
    // public void onClick(View v) { 
    //  // TODO Auto-generated method stub 
    //  Random r = new Random(); 
    //  String random = texts[r.nextInt(3)]; 
    //  tts.speak(random, TextToSpeech.QUEUE_FLUSH, null); 
    // } 

    @Override 
    public void onClick(View v) { 
     // TODO Auto-generated method stub 
     Intent i = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH); 
     i.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, 
      RecognizerIntent.LANGUAGE_MODEL_FREE_FORM); 
     i.putExtra(RecognizerIntent.EXTRA_PROMPT, "Speak up, son!"); 
     startActivityForResult(i, check); 
    } 

    @Override 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
     if (requestCode == check && resultCode == RESULT_OK) { 
      results = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS); 
      speak(); 
     } 
    } 

    protected void speak() { 
     try { 
      Thread.sleep(10000); 
     } catch (InterruptedException e) { 
      e.printStackTrace(); 
     } 

     for (int i = 0; i < results.size(); i++) { 
      Log.println(Log.DEBUG, "voice", "Option " + i + ": " + results.get(i)); 

      if (results.get(i).equalsIgnoreCase(texts[0])) { 
       Log.println(Log.DEBUG, "voice", "Registrerte: hello"); 
       tts.speak(texts[0], TextToSpeech.QUEUE_ADD, null); 
      } else if (results.get(i).equalsIgnoreCase(texts[1])) { 
       tts.speak(texts[1], TextToSpeech.QUEUE_ADD, null); 
      } else if (results.get(i).equalsIgnoreCase(texts[2])) { 
       tts.speak(texts[2], TextToSpeech.QUEUE_ADD, null); 
      } else { 
       tts.speak("Didn't here you there", TextToSpeech.QUEUE_ADD, null); 
      } 
     } 
    } 

    @Override 
    protected void onPause() { 
     super.onPause(); 
     if (tts != null) { 
      tts.stop(); 
      tts.shutdown(); 
     } 
    } 

    @Override 
    protected void onResume() { 
     super.onResume(); 
    } 
}

答

如果你仔细看，你onPause()是shutingdown您的TTS，所以当你回来的onActivityResult，你TTS不再有效 - 你应该在使用前再重新初始化。至少这看起来像是可能的原因，你应该有一些logcat错误条目甚至是例外。在UI线程上调用Thread.sleep(10000);总是一个坏主意。

使用TextToSpeech与RecognizerIntent（安卓）

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