BluetoothVoiceDialerActivity

最新推荐文章于 2011-09-19 16:28:48 发布

原创最新推荐文章于 2011-09-19 16:28:48 发布 · 128 阅读

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本文介绍了一个处理语音识别失败并尝试重新识别的方法，同时集成了文本转语音（TTS）功能来指导用户进行语音输入。文章通过具体代码示例展示了如何使用TTS进行语音提示，并设置延迟回调确保系统稳定运行。

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当intent为空的时候，要求重试。

public void onRecognitionFailure(final String msg) {
            if (Config.LOGD) Log.d(TAG, "onRecognitionFailure " + msg);
            // we had zero results. Just try again.
            askToTryAgain();
        }

//加上文本阅读器

mTts = new TextToSpeech(this, new TtsInitListener());

两个线程在准备onSpeechCompletion();

   class FallbackRunnable implements Runnable {
        public void run() {
            Log.e(TAG, "utterance completion not delivered, using fallback");
            // This runnable is intended as a fallback to transition to
            // the next state is for some reason we never get a
            // TTS utterance completion. It will behave just the same
            // as if we had received utterance completion.
            onSpeechCompletion();
        }
    }

    class GreetingRunnable implements Runnable {
        public void run() {
            mState = SPEAKING_GREETING;
            mTtsParams.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID,
                    SPEAK_NOW_UTTERANCE);
            mTts.speak(getString(R.string.speak_now_tts),
                TextToSpeech.QUEUE_FLUSH,
                mTtsParams);
            // Normally, the we will begin listening for the command after the
            // utterance completes. As a fallback in case the utterance
            // does not complete, post a delayed runnable to fire
            // the intent.
            mFallbackRunnable = new FallbackRunnable();
            mHandler.postDelayed(mFallbackRunnable, MAX_TTS_DELAY);
        }
    }

//listening command

listenForCommand();