Is it possible to implement rating system for in-game objects (just like app rating in google play store) using Google Play Game Services API?
I never used it before and didn't find suitable chapter, but may be it has low level API for such things.
Or may be Leaderboard API can be used somehow.
Check out RatingBar. It is not part of the Google Play Games Services API, but it will allow you to implement a star rating system.
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I have made a small game just to test my development skills. I integrated Google Play Game Services, like leaderboards and achievements. Why are the logos for leaderboards and achievements not shown in the play store? I'm talking about the logos that indicate, that this app supports the Google Game Services, so games know it.
Where can I enable the setting for that?
There is a minimum number of players needed to have signed in and been playing your game before the logos will appear. However, Google has not specifically released the number required, although testing shows it is at least 200.
Is that possible to implement some features like real-time multiplayer by using Google Play Game services without developer console?
According to the official documentation you have to "set up the game in the Google Play Developer Console" as step 2 instruct you to. I do not see any other way, if you do not want to implement all functionality yourself.
Ok this sounds weird. Google play games was made for games. And it is excellent. Achievements, cloud save, etc.
Now my app is NOT a game. But it is well documented and researched that turning chores/work/etc into games, makes them more fun, and people more likely to want to do them.
And this is what I want to do for my app. I cant add it to the games section, as it is a productivity/utility app. Yet I would like to add achievements,etc to it. And seeing as Google Play Games services already has some of the functionality i need, i thought i could use it. However, it seems that your app must be a game to use it.
Any one know if you can actually use the services with non games?
It's technically possible but in circumstances where you are using the services in an app, be careful because if your app doesn't meet the branding requirements, it can be pulled from the Play store as described in the Google Play Games Services terms of service.
So long as you can follow the Google Play Games Services Branding Guidelines you should be fine.
Yes, you can. The Google staff speaking in an event yesterday in the Google Campus London actually said this.
For examples of already existing popular such apps, checkout Memrise which is a gamified way to learn languages. It sits in "Education" App category and it has leaderboards and achievements in it, though not sure if its GPG or their own implementation of it.
I am developing a magazine application in Android. For that, I would like to update the icon in google play dynamically with the cover page of my latest magazine (Similar to Newsstand Atom feed in iTunes/iOS)
I would like to know if there is any way to achieve this in Google Play Store?
P.S : Not Application icon in device.
No. Google does not provide any APIs for managing Play Store listings, nor does it currently offer a system for automatically updating Play Store app data.
I have released a game that uses Google Game Services on Google Play. Everything works, but when I look on my game in Google Play it doesn't show that it's using Game Services. Some other games do (like Riptide GP for instance). What is controlling this?
Implementing the Google Play Game Services features is not sufficient, your users have to use the service for you to get the badges.
Let me quote from this video from Google I/O 2013: Practical Android Games Development
http://youtu.be/ZbQWf7C5ymU?t=23m39s
"As you get more users you will get badges. [...] However, they are not just given out because you put them in the config, and we don't snoop your APK to see if you are making API calls from there. We verify how much the feature is being used and if you meet certain threshold we give you a badge. So you need to actually integrate it, it is not a token thing that you can put there to get more eyeballs in the store."