A wrapper class to demonstrate how to implement "http://www.api.ai" in Android. SDK : https://github.com/api-ai/api-ai-android-sdk

VoiceGuidedNavigation.java

import android.content.Context;
import android.os.AsyncTask;

import ai.api.AIConfiguration;
import ai.api.AIDataService;
import ai.api.AIListener;
import ai.api.AIService;
import ai.api.AIServiceException;
import ai.api.model.AIError;
import ai.api.model.AIRequest;
import ai.api.model.AIResponse;


public class VoiceGuidedNavigation implements AIListener {

    private AIService aiService;
    private AIDataService aiDataService;
    private Context mContext;

    public VoiceGuidedNavigation(Context context) {
        mContext = context;
        final AIConfiguration config = new AIConfiguration("Your API key",
                "Your subscription key",
                AIConfiguration.SupportedLanguages.English,
                AIConfiguration.RecognitionEngine.System);

        // Use with text search
        aiDataService = new AIDataService(context, config);

        // Use with Voice input
        aiService = AIService.getService(context, config);
        aiService.setListener(this);
    }

    /**
     * Navigate using text
     *
     * @param text
     */
    public void navigateUsingText(String text) {
        // Setup a request object
        final AIRequest aiRequest = new AIRequest();
        aiRequest.setQuery(text);
        //Perform a asynchronous task to understand the text
        new AsyncTask<AIRequest, Void, AIResponse>() {
            @Override
            protected AIResponse doInBackground(AIRequest... requests) {
                try {
                    final AIResponse response = aiDataService.request(aiRequest);
                    return response;
                } catch (AIServiceException e) {
                }
                return null;
            }

            @Override
            protected void onPostExecute(AIResponse aiResponse) {
                parseResponse(aiResponse);
            }
        }.execute(aiRequest);
    }

    /**
     * Start listening to user voice
     */
    public void startVoiceInput() {
        aiService.startListening();
    }

    /**
     * Stop listening to user voice and get send request to understand the voice
     */
    public void stopVoiceInput() {
        aiService.stopListening();
    }

    @Override
    public void onResult(AIResponse result) {
        parseResponse(result);
    }

    @Override
    public void onError(AIError error) {

    }

    @Override
    public void onAudioLevel(float level) {

    }

    @Override
    public void onListeningStarted() {

    }

    @Override
    public void onListeningCanceled() {

    }

    @Override
    public void onListeningFinished() {

    }

    /**
     * Parse response and perform relevant action
     *
     * @param response
     */
    private void parseResponse(AIResponse response) {
        if (response != null && response.getResult() != null) {
            // Perform relevant action based on the response paramater, action and intent
        }
    }
}