CODEWITHSUNDEEP
androidgoogle-glassgoogle-gdk
msj121
msj121

Reputation: 2842

Two Finger Tap On Glass Live Card

How do I capture a two finger tap on a live card. I know I can open a menu with setAction, but I would like to capture more than that.

Currently:

public class MyApp extends Service {

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    MainServer.singleton(this).updateStatus(MainServer.ONLINE);
    if (mLiveCard == null) {
        mLiveCard = new LiveCard(this, LIVE_CARD_TAG);
        Intent menuIntent = new Intent(this, LiveCardMenuActivity.class);
        mLiveCard.setAction(PendingIntent.getActivity(this, 0, menuIntent, 0));
        ....
    }
}
...
}

Upvotes: 0

Views: 61

Answers (1)

Alex K
Alex K

Reputation: 8338

Define a GestureDetector as a private, global variable, then initialize it in your onCreate() method, catching the gesture Gesture.TWO_TAP. This is what that looks like:

public class SampleActivity extends Activity {
    private GestureDetector gestureDetector;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        createGestureDetector(this);
    }


    private GestureDetector createGestureDetector(Context context) {
    GestureDetector gestureDetector = new GestureDetector(context);
        gestureDetector.setBaseListener( new GestureDetector.BaseListener() {
            @Override
            public boolean onGesture(Gesture gesture) {
                if (gesture == Gesture.TWO_TAP) {
                    // do whatever you want on tap with two fingers
                    return true;
                }
                return false;
            }
        });
        return gestureDetector;
    }

    /*
     * Send generic motion events to the gesture detector
     */
    @Override
    public boolean onGenericMotionEvent(MotionEvent event) {
        if (mGestureDetector != null) {
            return mGestureDetector.onMotionEvent(event);
        }
        return false;
    }
}

It's that simple! You can read more about GestureDetectors on Google Glass here.

Upvotes: 1

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