In this codelab, you'll learn how to add deep links from your website to your app. In this codelab, you'll learn how to get your Android app indexed by Google Search. In this tutorial, you’ll learn how to handle voice searches in your Android app. In this codelab, you'll learn how to add voice interactions to your app with the Voice Interaction API.  You'll build a voice-powered camera app that responds to the voice command “take a photo” and prompts you for confirmation before taking the photo. In this codelab, you'll learn how to use the Bar Code Detection APIs in Google Play services. This will help you understand how to detect various types of bar code and extract data from them In this codelab, you'll learn how to use the Face Detection APIs in Google Play services. This will help you understand how to detect faces, landmarks in faces, and activity on faces.