latitudRef.addValueEventListener(new ValueEventListener(){
@Override
public void onDataChange(DataSnapshot dataSnapshot){
Double value = dataSnapshot.getValue(Double.class);
latitud = value;
}
@Override
public void onCancelled(DatabaseError databaseError){

}
});
longitudRef.addValueEventListener(new ValueEventListener(){
@Override
public void onDataChange(DataSnapshot dataSnapshot){
Double value1 = dataSnapshot.getValue(Double.class);
longitud = value1;
}
@Override
public void onCancelled(DatabaseError databaseError){

}
});