Code Integrating Google Play Services on Android

By integrating your Android apps with the Google Play Services, you can access Google services, such as Maps, Drive, and Google+. Once you have your apps set up to use these services, accessing them is typically straightforward. The setup process does require a few steps, but you only need to carry them out once. In this tutorial we will go through the process of integrating Google Play Services with Android apps.

Introduction

Throughout the tutorial, we will outline what you need to do to integrate apps with Play Services in both Eclipse and Android Studio. You will need access to the Google Developer Console and to the Keytool utility.

Once you are set up with Play Services, the development process itself will be determined by what you want your apps to do. The the setup procedure, however, remains the same. By using the client library to access platform services, your apps will benefit from automatic updates through the Play Store.

how to connect apps to google play services

Google Play services is used to update Google apps and apps from Google Play.
This component provides core functionality like authentication to your Google services, synchronized contacts, access to all the latest user privacy settings, and higher quality, lower-powered location based services.
Google Play services also enhances your app experience. It speeds up offline searches, provides more immersive maps, and improves gaming experiences.
Apps may not work if you uninstall Google Play services. gadecosmetics.se

How to activate Google Play on Sony Xperia Z2 bought in China

I bought A sony XperiaZ2 phone in China its under China Mobile.... Because Google services is banned in china thats y i was not using these services there but now i am in india and i want to use google services like google play stores. i downloaded google play but its not working on my phone,,,plz help me

My Nexus 5 Crashed because of Lollipop 5.0.1

I've had a rather bad experience with the Nexus 5 in the last few days. The 5.0.1 update crashed my phone and now, i'm not even able to get into the bootloader menu. When I took it to an authorized service centre, they said i'd have to replace the motherboard at my expense. I asked who i can contact about it, they said Google.
When i called google, they told me that since i didn't buy the phone on the play store, they can't help. Now that doesn't make sense to me. It is a Google phone. And the operating system, made by Google, is what messed up my phone. Why aren't they taking responsibility for it? How can they choose what phones can be repaired and what can't? Have they suddenly become elitist like Apple? I asked around and many of my friends and their friends have also faced similar problems.
I went to the Nexus forums, and found the same. Has anybody here had similar experiences?