<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <com.amap.api.maps2d.MapView
        android:id="@+id/rc_ext_amap"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
</LinearLayout>