Trying to display a simple google map in android ..How i can do it?

Question

I am trying to display a simple google map in android.whenever I run my application,getting, unfortunately googlemap has stopped on the emulator. I have added google_play_service_lib and referred it in my project. Still I am getting same thing. What i can do to solve this..? TIA.

1. List item

This my MainActivity class:

public class MainActivity extends MapActivity {

    @Override
    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

    }

    protected boolean isRouteDisplayed(){

          return false;

    }
}

2. xml file is:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="fill_parent">

<fragment
    android:id="@+id/map"
    android:name="com.google.android.gms.maps.MapFragment"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

 Manifest file...
<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="21" /> 
<permission
  android:name="com.example.googlemaps.permission.MAPS_RECEIVE"
  android:protectionLevel="signature" />
    < ACCESS_NETWORK_STATE,WRITE_EXTERNAL_STORAGE,INTERNET,
     ACCESS_COARSE_LOCATION,ACCESS_FINE_LOCATION,READ_GSERVICE
       These all permission I have added>
 <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.example.googlemap.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="APIkey" />
    <meta-data
        android:name="com.google.android.gms.version"
        android:value="@integer/google_play_services_version" />
 </application>
   </manifest>