title: Google Play game services -- are unlocked achievements automatically shared through g+ or not?
body: <p>We're adding Google Play game services achievements to our game (Epic Swords). We're in final testing, it works <em>except</em> I had expected that unlocked achievements would be visible or posted in some manner through g+. I do not see this sharing occurring.</p>
  
  <p>Google's docs imply these are shared, e.g. "Sign in with Google to share your scores and achievements with friends" <a href="http://goo.gl/V3Y41" rel="nofollow">http://goo.gl/V3Y41</a> and various other places, although it is vague on how these are shared.</p>
  
  <p>Q1: Are unlocked play services achievements automatically visible through g+?</p>
  
  <p>Q2: If yes, then are we doing something wrong in how we are testing these?</p>
  
  <p>Q3: If no... well, why implement achievements using play services instead of rolling our own? It would be simpler and more reliable to do our own implementation (there's a lot of complexity due to synchronizing state with google's cloud, not to mention some interesting bugs in their client code ;-)</p>
  
  <p>Background: We have published the Google Play game services. Everything works fine in-game, and the state is being shared/retrieved from google. I selected Public visibility for game progress when signing in to game services.</p>
  
  <p>btw we could add explicit g+ sharing when achievements unlock using the general sharing API <a href="http://goo.gl/L70sY" rel="nofollow">http://goo.gl/L70sY</a> but again... if we have to do that then why use the play services achievements at all?</p>