Set camera focus on particular marker on Google map on listview item click

See more:

Android

Google

ListView

What i want :
I want to set focus on marker that is already placed in google map.
When i click on list view item , focus of camera should be transfer to that poistion marker on map

What I have tried:

I try this in ListView.java class

GoogleMap mMap;
LatLng coordinate = new LatLng(26.89553, 75.82842);
holder.txtStore.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if(holder.txtStore.getText().toString().equals("MarkerName")) {

CameraUpdate location = CameraUpdateFactory.newLatLngZoom(
coordinate, 15);
mMap.animateCamera(location); // App crash n showing error here

}
}
});