如何計算兩個位置距離？

Question

如果距離大於5公里，計算兩個位置的距離，你必須返回true？

Plz幫助我，我是MapView的新手。

Answer 1

試試這個

#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

假設您已經點的座標。

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

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

CLLocationDistance distance = [locA distanceFromLocation:locB]; 

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

提到