如何计算两个位置距离？

Question

如果距离大于5公里，计算两个位置的距离，你必须返回true？

Plz帮助我，我是MapView的新手。

Answer 1

试试这个

#import <CoreLocation/CoreLocation.h> 

CLLocation *locA = [[CLLocation alloc] initWithLatitude:lat1 longitude:long1]; 

CLLocation *locB = [[CLLocation alloc] initWithLatitude:lat2 longitude:long2]; 

CLLocationDistance distance = [locA distanceFromLocation:locB]; 

//Distance in Meters 

if((distance*1000)>5) 
{ 
    //return true; 
    // your coding 
} 

Answer 2

假设您已经点的坐标。

CLLocation *locA = [[CLLocation alloc] initWithLatitude:lat1 longitude:long1]; 

CLLocation *locB = [[CLLocation alloc] initWithLatitude:lat2 longitude:long2]; 

CLLocationDistance distance = [locA distanceFromLocation:locB]; 

还需要#import <CoreLocation/CoreLocation.h>由Dharmesh Dhorajiya

提到