java - Android GMaps v2 - Get location of the center of the map & map height and width -

i'm trying latitude , longitude of center of map in google maps v2 api & width , length of map.

here old code(from gmaps v1 started modify):

import com.google.android.gms.maps.googlemap;  private googlemap mgooglemapview;  public latlng getmapcenter() {   if( mgooglemapview != null )   {      return mgooglemapview.getmapcenter();   }   /*if( mopenstreetmapview != null )   {      return convertosmgeopoint( mopenstreetmapview.getmapcenter() );   }*/   return null; }  public int getheight() {   if( mgooglemapview != null )   {      return mgooglemapview.getheight();   }         /*if( mopenstreetmapview != null )   {      return mopenstreetmapview.getheight();   }*/   return 0; }  public int getwidth() {   if( mgooglemapview != null )   {      return mgooglemapview.getwidth();   }   /*else if( mopenstreetmapview != null )   {      return mopenstreetmapview.getwidth();   }*/   return 0; }  

how can perform same functionality mapview.getmapcenter(), mapview.getheight(), , mapview.getwidth() using android gmaps v2 api?

getting center:

googlemap map; latlng center = map.getcameraposition().target; 

getting width , height:

if you're adding mapfragment activity using fragmenttransaction, have provide viewgroup put fragment into. linearlayout or such. calling getwidth() , getheight() on such viewgroup should want.

hope helps. if need example, let me know.

edit - adding example:

take @ google maps android api v2, @ section named: add fragment.

under part starts you can add mapfragment activity in code, there example. in example, r.id.my_container viewgroup wrote above. somewhere in xml layout of activity, there this:

<linearlayout     android:id="@+id/my_container"     android:layout_width="match_parent"     android:layout_height="match_parent" /> 

what fragmenttransaction takes mapfragment , puts child of linearlayout. child. therefore map has same width , height linearlayout.

then can need in activity this.

linearlayout mycontainer = (linearlayout) findviewbyid(r.id.my_container); int mapheight = mycontainer.getheight(); int mapwidth = mycontainer.getwidth(); 

i hope it's understandable.