integration.md

Integration

This instruction describes two different ways of integration API.AI Android SDK with your app.

Before integration make sure your app have these permissions:

• android.permission.INTERNET for internet access
• android.permission.RECORD_AUDIO for microphone access

Also SDK library must be in your app dependencies (see build.gradle)

dependencies {
    // some another dependencies...
    compile 'ai.api:libai:1.4.8'
    compile 'ai.api:sdk:2.0.5@aar'
    // api.ai SDK dependencies
    compile 'com.android.support:appcompat-v7:21.0.3'
    compile 'com.google.code.gson:gson:2.3'
    compile 'commons-io:commons-io:2.4'
}

• Integration with AIButton
• Integration with AIService
• Integration with AIDialog

Integration with AIButton

Use this type of integration if you want quickly integrate natural language processing functionality into your application. The idea is to add ready button control from the SDK. Use the following steps.

1. Add the following code snippet to your activity

   <ai.api.ui.AIButton
       android:id="@+id/micButton"
       android:layout_height="152dp"
       style="@style/Microphone"
       />

2. Add the following code to your activity's onCreate function

   final AIConfiguration config = new AIConfiguration("YOUR_ACCESS_TOKEN",  
                   AIConfiguration.SupportedLanguages.English,
                   AIConfiguration.RecognitionEngine.System);
   
   aiButton = (AIButton) findViewById(R.id.micButton);
   
   aiButton.initialize(config);
   aiButton.setResultsListener(new AIButton.AIButtonListener() {
       @Override
       public void onResult(final AIResponse result) {
           runOnUiThread(new Runnable() {
               @Override
               public void run() {
                   Log.d("ApiAi", "onResult");
                   // TODO process response here
               }
           });
       }de
   
       @Override
       public void onError(final AIError error) {
           runOnUiThread(new Runnable() {
               @Override
               public void run() {
                   Log.d("ApiAi", "onError");
                   // TODO process error here
               }
           });
       }
   });

3. Replace "YOUR_ACCESS_TOKEN" with key from your development console on the API.AI site.

4. Write your custom code instead of // process response here and //process error here to process success and error responses from the api.ai.

Integration with AIService

Use this type of integration if you want integrate natural language processing functionality from the API.AI in more customizable way. In this way you will be need to create your own controls for start listening, show sound level, cancel request etc. Use the following steps:

1. Use one of your application's Activity as the class that will be called when events occur by having it implement the AIListener class. Replace the class declaration with this:

   public class MainActivity extends ActionBarActivity implements AIListener {

2. In the Activity class, create a private member for the AIService class named aiService.

   private AIService aiService;

3. In the OnCreate method, add the following line to set up the configuration to use Google speech recognition. Replace CLIENT_ACCESS_TOKEN with your client access token.

    final AIConfiguration config = new AIConfiguration("CLIENT_ACCESS_TOKEN",
           AIConfiguration.SupportedLanguages.English,
           AIConfiguration.RecognitionEngine.System);

   

4. Below this line, initialize the AI service and add this instance as the listener to handle events.

   aiService = AIService.getService(this, config);
   aiService.setListener(this);

5. Add button to your activity and add method to start listening on the button click:

   public void listenButtonOnClick(final View view) {
       aiService.startListening();
   }

6. Add the following method to show the results when the listening is complete. Make sure you interact with UI in the UI thread.

   public void onResult(final AIResponse response) {
       runOnUiThread(new Runnable() {
               @Override
               public void run() {
                   Result result = response.getResult();
   
                   // Get parameters
                   String parameterString = "";
                   if (result.getParameters() != null && !result.getParameters().isEmpty()) {
                       for (final Map.Entry<String, JsonElement> entry : result.getParameters().entrySet()) {
                           parameterString += "(" + entry.getKey() + ", " + entry.getValue() + ") ";
                       }
                   }
   
                   // Show results in TextView.
                   resultTextView.setText("Query:" + result.getResolvedQuery() +
                       "\nAction: " + result.getAction() +
                       "\nParameters: " + parameterString);
               }
           });
   }

7. Add the following method to handle errors. Make sure you interact with UI in the UI thread.

   @Override
   public void onError(final AIError error) {
       runOnUiThread(new Runnable() {
               @Override
               public void run() {
                   resultTextView.setText(error.toString());
               }
           });
   }

8. Use the following methods to implement the AIListener interface and process ListeningStarted, ListeningFinished, SoundLevelChanged events:

   @Override
   public void onListeningStarted() {
       // show recording indicator
   }
   
   @Override
   public void onListeningFinished() {
       // hide recording indicator
   }
   
   @Override
   public void onAudioLevel(final float level) {
       // show sound level
   }

Integration with AIDialog

AIDialog is simple and ready to use dialog for making voice requests. All you need is create AIConfiguration:

 final AIConfiguration config = new AIConfiguration("CLIENT_ACCESS_TOKEN",
        AIConfiguration.SupportedLanguages.English,
        AIConfiguration.RecognitionEngine.System);

And implement AIDialog.AIDialogListener interface methods:

void onResult(final AIResponse result);
void onError(final AIError error);
void onCancelled();

Then create AIDialog instance and show it:

AIDialog aiDialog = new AIDialog(this, config);
aiDialog.setResultsListener(yourListenerImplementation);
aiDialog.showAndListen();

AIDialog instance can be used multiple times.