Comparing two locations using their Longitude and Latitude

Question

Hi i need to cal an event at onchangelocation(), by comparing current latitude and longitude with some saved latitude and longitude but i m getting an error. eclipse is not

Answer 1

All the 4 input parameters are in float. Distance is a relative one not real distance. You need to convert this distance to a real distance by searching some formula online :( I used this in my app to get nearest metro station from my current location. Hope this snippet helps someone :)

float distance(float lat,float lon,float clat,float clon)
{
    float distance;
    float temp1;
    float temp2;
    temp1=(float)((lat-clat)*(lat-clat));
    temp2=(float)((lon-clon)*(lon-clon));
    distance=temp1+temp2;
    return distance;
}