Code to implement sample Google Maps Application ,Android

Download and configure Google Play Services Library in Eclipse

Google Map for Android is now integrated with Google Play Services. So we need to set up Google Play Service Library for developing Google Map application in Android.

Get the API key for Google Maps v2:

Linux :

For any other OS use this :

 keytool -list -v -alias androiddebugkey \  
 -keystore <path_to_debug_keystore>debug.keystore \  
 -storepass android -keypass android   

Register with the Google APIs Console : Google APIs Console

Select here the Services entry:

Activate the Google Maps Android API v2.

Register your application via its package in this console together with the SHA-1 fingerprint of your signature key.

Click on Create new Android Key..

Add you SHA-1 and your package name in to box like example given in alert box.

Support library : Android support library (android-support-v4.jar ) is added to this project by Eclipse IDE to the directory libs.

Now,

 Add Play Services Library in project :  
 Eclipse > import > Android > Existing Android code in to workspace  
 Browse you SDK path like ~/android-sdk-linux/extras/google/google_play_services  
 import that project in to workspace  

Create New Android Project and flow below step:

Add library project in to new Project : Project > properties > android > in library section > Add > google_play_services

now in your manifest file :

 <?xml version="1.0" encoding="utf-8"?>  
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"  
   package="com.djandroid.mapsv2"  
   android:versionCode="1"  
   android:versionName="1.0" >  
   <uses-sdk  
     android:minSdkVersion="8"  
     android:targetSdkVersion="16" />  
   <uses-permission android:name="android.permission.INTERNET" />  
   <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />  
   <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />  
   <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />  
   <uses-permission android:name="com.djandroid.mapsv2.permission.MAPS_RECEIVE" />  
   <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />  
   <uses-feature  
     android:glEsVersion="0x00020000"  
     android:required="true" />  
   <application  
     android:allowBackup="true"  
     android:icon="@drawable/ic_launcher"  
     android:label="@string/app_name"  
     android:theme="@style/AppTheme" >  
     <activity  
       android:name="com.djandroid.mapsv2.MainActivity"  
       android:label="@string/app_name" >  
       <intent-filter>  
         <action android:name="android.intent.action.MAIN" />  
         <category android:name="android.intent.category.LAUNCHER" />  
       </intent-filter>  
     </activity>  
     <meta-data  
       android:name="com.google.android.maps.v2.API_KEY"  
       android:value="API_KEY" />  
     <uses-library  
       android:name="com.google.android.maps"  
       android:required="true" />  
   </application>  
 </manifest>  

you layout file:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

   xmlns:tools="http://schemas.android.com/tools"  
   android:layout_width="match_parent"  
   android:layout_height="match_parent"  
   tools:context=".MainActivity" >  
   <fragment  
     android:id="@+id/fragment1"  
     android:layout_width="match_parent"  
     android:layout_height="match_parent"  
     class="com.google.android.gms.maps.SupportMapFragment" />  
 </RelativeLayout>  

Main Activity :

 package com.djandroid.mapsv2;  
 import android.app.Activity;  
 import android.os.Bundle;  
 import android.support.v4.app.FragmentActivity;  
 public class MainActivity extends FragmentActivity {  
      @Override  
      protected void onCreate(Bundle arg0) {  
           // TODO Auto-generated method stub  
           super.onCreate(arg0);  
           setContentView(R.layout.activity_main);  
      }  
 }  

You have to test the application on a real device as the emulator is not supported.