google admob adView

1. https://kr.admob.com/
2. https://developers.google.com/mobile-ads-sdk/

3. bottom adView.

default center AdView,  ignored  android:gravity attribute

            android:layout_width="fill_parent"
        android:layout_height="fill_parent" >

                    xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"
            android:id="@+id/adview"
            android:layout_width="fill_parent"
            android:layout_height="50dip"
            android:layout_alignParentBottom="true"
            android:layout_gravity="bottom"
            ads:adSize="BANNER"
            ads:adUnitId="xxxxxxxxxxxxx"
            android:gravity="bottom|center" >