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我很难弄清楚如何解决这个问题，我不确定我是否没有正确设置线程，或者是否有可能正确解决问题。

这是一个 Android 应用程序，可在特定时间将某些字符串作为 TTS（使用原生 Android TTS）读取。在此 TTS 阅读过程中，用户应该能够使用诸如“停止”或“暂停”之类的指令进行干预。这种识别是通过使用 iSpeech API 完成的。

我们当前的解决方案是让 TTS 作为线程运行，以输出正确的字符串。一旦用户按下按钮开始语音识别（使用 Intent），应用程序就会进行语音识别并完美处理，但 TTS 不再输出任何内容。Logcat 显示以下错误：

11-28 02:18:57.072：W/TextToSpeech(16383)：说话失败：未绑定到 TTS 引擎

我曾考虑让语音识别成为暂停 TTS 的自己的线程，但问题是控制 TTS 的计时器将与它应该的不同步。

任何建议或帮助将不胜感激。

关于线程和意图的相关代码如下：

线

 public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    //Prevent device from sleeping mid build.
    getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
    setContentView(R.layout.activity_build_order);
    mPlayer = MediaPlayer.create(BuildOrderActivity.this, R.raw.bing);
    params.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID,"stringId");
    tts = new TextToSpeech(BuildOrderActivity.this, new TextToSpeech.OnInitListener() {
        @SuppressWarnings("deprecation")
        public void onInit(int status) {
            if(status != TextToSpeech.ERROR)
            {
                tts.setLanguage(Locale.US);
                tts.setOnUtteranceCompletedListener(new OnUtteranceCompletedListener() {

                    public void onUtteranceCompleted(String utteranceId) {
                        mPlayer.start();
                    }

                });
            }
        }
    });

    buttonStart = (Button) findViewById(R.id.buttonStartBuild);

    buttonStart.setOnClickListener(new View.OnClickListener() {

        public void onClick(View v) {
            startBuild = new StartBuildRunnable();
            Thread t = new Thread(startBuild);
            t.start();
        }
    });

...//code continues oncreate setup for the view}
public class StartBuildRunnable implements Runnable {

    public void run() {
        double delay;
        buildActions = parseBuildXMLAction();
        buildTimes = parseBuildXMLTime();
        say("Build has started");
        delayForNextAction((getSeconds(buildTimes.get(0)) * 1000));
        say(buildActions.get(0));
        for (int i = 1; i < buildActions.size(); i++)
        {
            delay = calcDelayUntilNextAction(buildTimes.get(i - 1), buildTimes.get(i));
            delayForNextAction((long) (delay * 1000));
            say(buildActions.get(i));
            //listViewBuildItems.setSelection(i);
        }
        say("Build has completed");
    }
}

意图

/**
 * Fire an intent to start the speech recognition activity.
 * @throws InvalidApiKeyException 
 */
private void startRecognition() {
    setupFreeFormDictation();
    try {
        recognizer.startRecord(new SpeechRecognizerEvent() {
            @Override
            public void onRecordingComplete() {
                updateInfoMessage("Recording completed.");
            }

            @Override
            public void onRecognitionComplete(SpeechResult result) {
                Log.v(TAG, "Recognition complete");
                //TODO: Once something is recognized, tie it to an action and continue recognizing.
                //      currently recognizes something in the grammar and then stops listening until
                //      the next button press.
                if (result != null) {
                    Log.d(TAG, "Text Result:" + result.getText());
                    Log.d(TAG, "Text Conf:" + result.getConfidence());

                    updateInfoMessage("Result: " + result.getText() + "\n\nconfidence: " + result.getConfidence());                     
                } else
                    Log.d(TAG, "Result is null...");
            }

            @Override
            public void onRecordingCancelled() {
                updateInfoMessage("Recording cancelled.");
            }

            @Override
            public void onError(Exception exception) {
                updateInfoMessage("ERROR: " + exception.getMessage());
                exception.printStackTrace();
            }
        });
    } catch (BusyException e) {
        e.printStackTrace();
    } catch (NoNetworkException e) {
        e.printStackTrace();
    }
}
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