title: When to check Google Play Services in your app
body: <p>I'm building an app that uses the Google Maps. I'm following the official guide from Google and went to this link: 
  <a href="https://developers.google.com/android/guides/setup" rel="nofollow noreferrer">https://developers.google.com/android/guides/setup</a></p>
  
  <p>Question:
  Do I need to include checking for the availability of the Google Play Services for the map?</p>
  
  <p>It's quite vague, it does not say which APIs requires this checking.
  Can anyone confirm?</p>