SupportMapFragment에서 listview를 리소스에서 가져오는데 null포인트네요

Question

<?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"
    >

    <fragment
        android:id="@+id/map"
        android:layout_width="match_parent"
        android:layout_height="322dp"
        class="com.google.android.gms.maps.SupportMapFragment" />

   <ListView
        android:id="@+id/listView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true" >
   </ListView>
    
</LinearLayout>

 

public class map extends SupportMapFragment implements LocationListener{

	ListView listview;
	ArrayList<String> list;
	ArrayAdapter<String> adapter;
	
	@Override
	public View onCreateView(LayoutInflater inflater, ViewGroup container,
	        Bundle savedInstanceState) {
	    super.onCreateView(inflater, container, savedInstanceState);
       	    
	    listview = (ListView)getActivity().findViewById(R.id.listView1);
	    list = new ArrayList<String>();
	     list.add("testi");
	    
	 	adapter = new ArrayAdapter<String>( getActivity(), 
       			android.R.layout.simple_list_item_1, list);
	 	   
	 	if (listview == null) Log.d("", "====^^========");
	 	
	    listview.setAdapter(adapter);

 

listview가 null포인트로 나옵니다..