Google Now integration with app

Question

I'm trying to build an voice controlled application which can perform some tasks depending on the commands.
I wanted to add Google Now features also to it so that if the user asks some questions like about weather info, news, about celebrities etc then I can get results from Google Now.

Is there any way to integrate Google now functionality in my app?

Answer 1

Check out the Voice Reorganization in Android

You can implement it as below :

Write the below code on click event of button which is responsible for firing off the voice intent.

/**
 * Instruct the app to listen for user speech input
 */
private void listenToSpeech() {
    //start the speech recognition intent passing required data
    Intent listenIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
    //indicate package
    listenIntent.putExtra(RecognizerIntent.EXTRA_CALLING_PACKAGE, getClass().getPackage().getName());
    //message to display while listening
    listenIntent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Say a word!");
    //set speech model
    listenIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
    //specify number of results to retrieve
    listenIntent.putExtra(RecognizerIntent.EXTRA_MAX_RESULTS, 10);
    //start listening
    startActivityForResult(listenIntent, VR_REQUEST);
}

When the intent calls back, we display the transcribed voice.

/**
 * onActivityResults handles:
 *  - retrieving results of speech recognition listening
 *  - retrieving result of TTS data check
 */
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    //check speech recognition result
    if (requestCode == VR_REQUEST && resultCode == RESULT_OK)
    {
        //store the returned word list as an ArrayList
        ArrayList<String> suggestedWords = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
        //set the retrieved list to display in the ListView using an ArrayAdapter
        wordList.setAdapter(new ArrayAdapter<String> (this, R.layout.word, suggestedWords));

     //to open the result in browser 
     Intent intent = new Intent(Intent.ACTION_VIEW, 
     Uri.parse("https://www.google.co.in/?gws_rd=cr#q="+suggestedWords));
startActivity(intent);
    }
    //tss code here
    //call superclass method
    super.onActivityResult(requestCode, resultCode, data);
}

Answer 2

So far the closest thing I have found to your requirements is

RecognizerIntent.ACTION_VOICE_SEARCH_HANDS_FREE

This basically launches the Google Now screen on top of your app and responds back with the voice feedback as Google Now does.

I haven't found any way yet to listen in background and get the speech result or text result which can be converted into speech by TTS engine.