Можно ли показать вид карты внутри фрагмента диалога?

У меня есть фрагмент диалогового окна, в котором я хочу показать свою карту и отметить широту и журнал, которые у меня с собой. Но я получаю свой getMap() как NULL. Это то, что я сделал

public class EventDetailsDialogFragment extends DialogFragment{
    TextView title, desc, sdate, edate, room, loctn;
    FeedObjModel selectedFeedObject;
    Date netDate;
    SimpleDateFormat sdf;
    GoogleMap theMap;
    MarkerOptions markerOptions;
    FragmentActivity myContext;

    @Override
    public void onAttach(Activity activity) {
        // TODO Auto-generated method stub
        super.onAttach(activity);
    }

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    View view = inflater.inflate(R.layout.event_details_dialog_layout, container);

    title = (TextView) view.findViewById(R.id.title_event_details_TV);
    desc = (TextView) view.findViewById(R.id.description_event_details_TV);
    sdate = (TextView) view.findViewById(R.id.start_date_event_details_TV);
    edate = (TextView) view.findViewById(R.id.end_date_event_details_TV);
    loctn = (TextView) view.findViewById(R.id.locEdTV);


    long timestamp1 = Long.parseLong(selectedFeedObject.eventstartDate);
    long timestamp2 = Long.parseLong(selectedFeedObject.eventendDate);
    try{ 
        sdf = new SimpleDateFormat("MMM dd, yyyy");
        netDate = (new Date(timestamp1*1000));
        sdate.setText(sdf.format(netDate));  
        netDate = (new Date(timestamp2*1000));
        edate.setText(sdf.format(netDate));  
    } catch(Exception ex){

        }

    getDialog().setTitle(""+selectedFeedObject.subject);
    title.setText(selectedFeedObject.subject);
    desc.setText(selectedFeedObject.eventDescription);
    loctn.setText(selectedFeedObject.eventLocation);

/*  theMap = ((SupportMapFragment) getActivity().getSupportFragmentManager()
            .findFragmentById(R.id.mapED))
            .getMap();*/

    SupportMapFragment fragment = new SupportMapFragment();
    FragmentTransaction transaction = getChildFragmentManager().beginTransaction();
    transaction.add(R.id.mapED, fragment).commit(); 
    theMap = fragment.getMap();

    Log.v("theMap1", ""+theMap);

        Double lng = Double.parseDouble(selectedFeedObject.eventlongitude);
        Double lat = Double.parseDouble(selectedFeedObject.eventlatitude);
        LatLng latLng = new LatLng(lng, lat);
        MarkerOptions markerOptions = new MarkerOptions();
        markerOptions.position(latLng);
        markerOptions.title(selectedFeedObject.eventLocation);

    Log.v("markerOptions", ""+markerOptions);

        theMap.addMarker(markerOptions);
        theMap.animateCamera(CameraUpdateFactory.newLatLng(latLng));
        CameraUpdate center = CameraUpdateFactory
                .newLatLng(new LatLng(lat, lng));
        CameraUpdate zoom = CameraUpdateFactory.zoomTo(15);
        theMap.moveCamera(center);
        theMap.animateCamera(zoom);
    return view;

}


public void setEventDetails(FeedObjModel _selectedFeedObject) {
    // TODO Auto-generated method stub
    selectedFeedObject = _selectedFeedObject;
}
}

я получаю "карту" как NULL

.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="5dp"
    android:paddingLeft="10dp"
    android:paddingRight="5dp"
    android:paddingTop="5dp" >

    <TextView
        android:id="@+id/title_event_details_TV"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TextView" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Description" 
        android:textSize="16sp"
        android:textStyle="bold"/>

    <TextView
        android:id="@+id/description_event_details_TV"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TextView" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Start Date and Time"
        android:textSize="16sp"
        android:textStyle="bold" />

    <TextView
        android:id="@+id/start_date_event_details_TV"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TextView" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="End Date and Time"
        android:textSize="16sp"
        android:textStyle="bold" />

    <TextView
        android:id="@+id/end_date_event_details_TV"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TextView" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Location" 
        android:textSize="16sp"
        android:textStyle="bold"/>

    <TextView
        android:id="@+id/locEdTV"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TextView" />

    <FrameLayout
        android:id="@+id/mapED"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:name="com.google.android.gms.maps.SupportMapFragment"
         />

</LinearLayout>