[Tutorial] Developing Cloud Base App [GoogleCloud][Android]

In this Tutorial I try to explain general aspects of Cloud Computing & Cloud Concepts & Authentication You will learn What is Cloud & If already know basics of Android Programming, you will be able to develop your Cloud Base App after reading carefully this guide.

What you Need to Continue is;
1. Google Account
2. Ability to Create Hello World! Project in Android Studio

* Application Configuration
Run Android Studio & Create New Project with Blank Activity. (Set Proper AppName & Package)
After Gradle Building finished go to File > Project Structure > Cloud & Enable Firebase.
Go to Manifest > Add Get_Account & Internet Permissions above the <application />

Code:

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.GET_ACCOUNTS" />

then Inside Application tag add Google_Play_Service <meta-data />

Code:

<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />

Then Open build.gradle (Module: App) & Add these excludes to prevent errors during test process inside android{}

Code:

packagingOptions {
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/LICENSE-FIREBASE.txt'
        exclude 'META-INF/NOTICE'
 }

Also Add this library for auth-process into dependencies{}

Code:

compile 'com.google.android.gms:play-services-auth:8.4.0'

Now your App is Ready to Add Codes for Cloud API But your Need to Configure Cloud Side too.

* Google Cloud & Firebase Configuration
Here some parts doesn't need for beginning Android Coding But It can be tricky & easy for you to do everything on Browser for Google Section and then Focus on Coding. At End you can Review All Parts & Test it by yourself. I will explain more about each part.
Generate your Sign APK to Get SHA-1 Key

Code:

keytool -list -v -keystore '/PATH/TO/kEY_STORE'

To Transfer Data to Cloud you need to Have a Cloud Service. Here I am using Firebase. 

Go to www.Firebase.com & Login with your Google Account. 
Firebase will automatically Create a Project for you named 'MY FIRST APP' that you can delete or modify it. 
Firebase has Free Plan for Small Business, Testing & etc. So after you learn more about cloud you can upgrade your plan for existing projects.

The URL of Firebase for your Project is Like this

HTML Code:

https://YOUR_APP_NAME.firebaseio.com/

Every task with Firebase API needs this URL.Go to https://Console.Gloud.Google.com Sign-Up & Get 60 Days Trial Period & 300$ to spend on Google Cloud Platform. 
So Feel Free to Create Projects & Enabling APIs. 
After Creating Google Cloud Project go to Project Dashboard & from Left Panel navigate to API Manager > Credentials. Click on Create Credential & Select OAuth client ID After Loading New Page Select Android Then Create. Now Set Carefully your SHA-1 key & Android AppPackageName then Save.

Go to https://Developers.Google.com/ First of All If you are new to Developing Spend some times in this page & Enjoy All Google Services for Everything. 
Then Navigate to Google Service for Mobile > Android > Sign-In with Google > Click Get Start > Scroll Down > Click Get Configuration File. 
Again Type your Android App PackageName then Click Continue & Type SHA-1 Key & Click ENABLE GOOGLE SIGN-IN after that Scroll Down and Click on Generate Configuration File and Download the File. 
Copy google-service.json File & Paste it to App Level Project. 

Code:

To do this Now Open Android Studio Change View of Project Explorer from Android View to Project View. 
Expand Project and Paste JSON file under the APP Level.

http://dl-1.va.us.xda-developers.com...&ts=1464144452

Now you are ready to use Firebase Services & Login with Google.
Next Post is About Working with Firebase Send/Receive Data.

Oo. DOWNLOAD .oO
SOURCE.CODE
APK.FILE

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