android - set default zoom level on mapView -

i have made seekbar zoom controler map view follows

myzoombar = (seekbar)findviewbyid(r.id.zoombar);         setzoomlevel();         myzoombar.setonseekbarchangelistener(myzoombaronseekbarchangelistener); 

and

private seekbar.onseekbarchangelistener myzoombaronseekbarchangelistener =            new seekbar.onseekbarchangelistener(){              public void onprogresschanged(seekbar seekbar, int progress,               boolean fromuser) {              // todo auto-generated method stub              setzoomlevel();             }              public void onstarttrackingtouch(seekbar seekbar) {              // todo auto-generated method stub              }              public void onstoptrackingtouch(seekbar seekbar) {              // todo auto-generated method stub              }          };           private void setzoomlevel()          {           int myzoomlevel = myzoombar.getprogress()+1;           mc.setzoom(myzoomlevel);           toast.maketext(this,            "zoom level : " + string.valueof(myzoomlevel),            toast.length_long).show();          }; 

my question how can set default view level 15? right when map opens zoomed out way.

try below code

maview mapview = (mapview)findviewbyid(r.id.my_map); mapcontroller mapcontroller = mapview.getcontroller(); mapcontroller.setzoom(15);