I have the following definition in XML file. I have also created a fragment class which has a method for inflating it. Can you please advise me how to show the map on the class that extends Activity.

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

        <TextView
            android:id="@+id/type"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="TextView"
            android:textSize="30sp" />
     <fragment
          android:id="@+id/mapview"
          android:name="com.google.android.gms.maps.SupportMapFragment"
          android:layout_width="match_parent"
          android:layout_height="match_parent"/>
    </LinearLayout>

```