Adding Google Map API to Android App



Android development is  fun relative to other similar technology platforms and you can call it as a hobby too.  DEVELOPING Android  application will give same amount of fun as playing with application in phone. Google made it so easy by providing few APIs that is also for free!

 Here I'm going  to explain about Google Map API and how one can make use of these APIs in his Android app.

I'm making use of the Android Studio, steps may vary depending upon the tool you use

Step 1: Creating Android Project

Open Android Studio and create a new  Android Project


    Provide a valid package name and click on Next.




    Select Minimum SDK as per the requirement. If you are developing application for KitKat version
   you can chose API 19

   Click on Next
 
 


   Select Google Map Activity as a launcher activity. (You can also select other activity as launcher activity and can    add Map activity to the application)
   Click on Next
   
   Enter the activity name and click on Finish.

    Step 2: Registering your App in Google Console and creating an Api Key

    Sign in into https://console.developers.google.com using Google account.

   From home page API Manager => Credentials
 

    Click on Create credentials and select API key.
   A popup appears with the key value then click on Restrict 
   

   Select Android apps radio button and provide the package name of the project you created(You can    refer AndroidManifest file for the package name and App signature( discussed below how to create    an Android app signature ) then click on Save.

   To generate signature for the app follow the following steps:
  1.    In Android Studio click on the Gradle bar on right most corner 
  2.    Refresh the Gradle Project list 
  3.    Expand Project Folder => Tasks => android => signingReport


   
      4.  Double click on signingReport. A console appears with the signature generated. Copy and paste the same on the Google API manager. 
     

   Step 3: 
   Provide the API key in the google_maps_api.xml file created under app => values
   
   Step 4: 
   Run the app on Emulator or Phone to see the result. You will get a screen as follows
   
    
    Happy Coding :)
  
   

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