寻找最近的CLLocation

Posted 2023-04-14

【中文标题】寻找最近的CLLocation

【英文标题】：Finding the Closest CLLocation

【发布时间】：2013-07-27 10:15:31

【问题描述】：

如何找到离用户最近的位置？基本上，我有一堆CLLocation，我想找到最接近用户的那个。我已检索到用户当前位置，但我想找到最近的CLLocation。我该怎么做呢？你可以NSLog最近的。

【参考方案1】：

CLLocation *currentLocation;
NSArray *otherLocations;

CLLocation *closestLocation;
CLLocationDistance closestDistance = DBL_MAX;

for (CLLocation* location in otherLocations) 
    CLLocationDistance distance = [currentLocation distanceFromLocation:location];
    if (distance < closestDistance) 
        closestLocation = location;
        closestDistance = distance;
    

NSLog(@"the closest location is %@", closestLocation);

【讨论】：

更新closestDistance时需要更新closestLocation