How to Text-to-Speech plays on Bluetooth in Android?

问题

I'm a newbie for android. I've created an app that can read Incoming messages using Android Text-To-Speech. Up to now its fine with it. Now user's want It has to play over paired Bluetooth.

I'd read all the forums but i didn't get it. Now how i play my TTS engine on Bluetooth ?

Anyone having any idea ?

Thanks in advance.

回答1:

Use my answer at Using the Android RecognizerIntent with a bluetooth headset

And create a speak method like below

protected void speak(String text)
{

    HashMap<String, String> myHashRender = new HashMap<String, String>();

    if (mBluetoothHelper.isOnHeadsetSco())
    {
        myHashRender.put(TextToSpeech.Engine.KEY_PARAM_STREAM, 
                String.valueOf(AudioManager.STREAM_VOICE_CALL));
    }
    mTts.speak(text, TextToSpeech.QUEUE_FLUSH, myHashRender);
}

来源：https://stackoverflow.com/questions/15392457/how-to-text-to-speech-plays-on-bluetooth-in-android