我的代码:
import java.math.BigInteger;
import java.security.SecureRandom;
import java.util.HashMap;
import java.util.Locale;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.Activity;
import android.os.Build;
import android.os.Bundle;
import android.speech.tts.TextToSpeech;
import android.speech.tts.TextToSpeech.OnInitListener;
import android.speech.tts.UtteranceProgressListener;
import android.widget.Toast;
@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH_MR1)
@SuppressLint("NewApi")
public class MainActivity extends Activity {
public TextToSpeech tts;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
tts = new TextToSpeech(this, new ttsInitListener());
}
@SuppressLint("TrulyRandom") class ttsInitListener implements OnInitListener {
@SuppressWarnings("deprecation")
@Override
public void onInit(int status) {
if (status == TextToSpeech.SUCCESS) {
tts.setLanguage(Locale.getDefault());
if (!tts.isSpeaking()) {
SecureRandom random = new SecureRandom();
String aa= new BigInteger(130, random).toString(32);
HashMap<String, String> map = new HashMap<String, String>();
map.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, aa);
tts.speak("Hello Hello HEllo HEllo HEllo",
TextToSpeech.QUEUE_FLUSH, map);
tts.setOnUtteranceProgressListener(new ttsUtteranceListener());
}
} else {
tts = null;
Toast.makeText(getApplicationContext(),
"Failed to initialize TTS engine.", Toast.LENGTH_SHORT)
.show();
}
}
}
class ttsUtteranceListener extends UtteranceProgressListener {
@Override
public void onDone(String utteranceId) {
Toast.makeText(getApplicationContext(), "onDone", Toast.LENGTH_LONG).show();
}
@Override
public void onError(String utteranceId) {
Toast.makeText(getApplicationContext(), "onError", Toast.LENGTH_LONG).show();
}
@Override
public void onStart(String utteranceId) {
Toast.makeText(getApplicationContext(), "onStart", Toast.LENGTH_LONG).show();
}
}
}
说话时
tts.speak("Hello Hello HEllo HEllo HEllo",
TextToSpeech.QUEUE_FLUSH, map);
然后完成应该调用ttsUtteranceListener
类onDone(String utteranceId)
方法,但并不总是达到ttsUtteranceListener
。
为什么没有达到这个类?
你正在使用这个:
String aa= new BigInteger(130, random).toString(32);
HashMap<String, String> map = new HashMap<String, String>();
map.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, aa); //aa can be anything random, not necessary a word contained in your text
UtteranceProgressListener
是与通过合成队列的语句进度相关的事件的侦听器。
onDone :在语句成功完成处理时调用。
你应该尝试使用这个:
HashMap<String, String> map = new HashMap<String, String>();
map.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID, "Hello");
tts.speak("Hello Hello HEllo HEllo HEllo", TextToSpeech.QUEUE_FLUSH, map);
tts.setOnUtteranceProgressListener(new ttsUtteranceListener());
然后,当 Hello 的话语成功完成时,它将触发它。
希望对您有所帮助。