Google Map V2 -Simple Map

MainActivity.java

import android.app.Activity;
import android.os.Bundle;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
     
    }

}

main.xml

<fragment xmlns:android="http://schemas.android.com/apk/res/android"
          android:id="@+id/map"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:name="com.google.android.gms.maps.MapFragment"

          />

Mainfest File

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.googmap"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.googmap.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="AIzaSyDDprxuQOlm1vsBrDXF2lReZknLfnH4unI"/> //Different for each system and users
    </application>
<permission
        android:name="com.example.googmap.permission.MAPS_RECEIVE"
        android:protectionLevel="signature"/>
<uses-permission android:name="com.example.googmap.permission.MAPS_RECEIVE"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-feature
        android:glEsVersion="0x00020000"
        android:required="true"/>

</manifest>


NOTE

* import goggle-play-lib-service  lib to our project
*obtain api key from system
   Obtaining Key
* open cmd
* locate to java\jre\bin ( cd "C:\Program Files\Java\jre7\bin" )
* locate the android debug.keystore
by dafault it will available at C:\user\useraccount\.android\
* paste this code to cmd
" keytool -list -v -alias androiddebugkey -keystore C:\Users\admin\.android\debug.keystore -storepass android -keypass android "

here debug.keystore is located at C:\Users\admin\.android\debug.keystore
like this

in cmd

 C:\Program Files\Java\jre7\bin>keytool -list -v -alias androiddebugkey -keystore C:\Users\admin\.android\debug.keystore -storepass android -keypass android

then sha1 key will be displayed

          For Registering Key and Generating key for Map
* go to google developers api console 
*  create api project .
* in api project services
          toogle on  all google map related options
* in APi Acess create new key
           paste sha1 key along with package name
       copy the generated key and paste in manifest file