Admob integration into Android application (Google advertisements )

    In Activity file add the below code

AdView mAdView = (AdView) rootView.findViewById(R.id.adView);

AdRequest adRequest = new AdRequest.Builder().build();

mAdView.loadAd(adRequest);

Declare in your xml layout file wherever you want to place advertisement

     <com.google.android.gms.ads.AdView

        android:id="@+id/adView"

        android:layout_width="match_parent"

        android:layout_height="100dp"

        android:layout_weight="1"

        ads:adSize="BANNER"

        ads:adUnitId="@string/banner_ad_unit_id" >

    </com.google.android.gms.ads.AdView>

Manifest declaration :

 <!--Include the AdActivity configChanges and theme. -->

        <activity android:name="com.google.android.gms.ads.AdActivity"

            android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"

            android:theme="@android:style/Theme.Translucent" />

in strings.xml

declare banner ad unit id

<string name="banner_ad_unit_id">ca-app-pub-8076328522522776/3847247228</string>

Now ready to see ads in the application.