使用 iPhone 的 gmap 中的经纬度计算两个地方之间的距离 [英] Calculate distance between two place using latitude-longitude in gmap for iPhone

问题描述

可能重复:
GPS坐标以度数计算距离

如何在 iPhone 的 gmap 中使用经纬度计算两个地方之间的距离?使用 iPhone 的 gmap 中的经纬度计算两个地方之间的距离

How to Calculate distance between two place using latitude-longitude in gmap for iPhone? Calculate distance between two place using latitude-longitude in gmap for iPhone

推荐答案

你必须使用Core Location Framework.所以不要忘记添加 &导入核心位置框架.

You have to use Core Location Framework. So don't forget to Add & import Core Location Framework.

 #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

 //1 meter == 100 centimeter

 //1 meter == 3.280 feet

 //1 square meter == 10.76 square feet


 [locA release];

 [locB release];

斯威夫特

import CoreLocation

let locA = CLLocation(latitude: lat1, longitude: long1)

let locB = CLLocation(latitude: lat2, longitude: long2)

let distance = locA.distance(from: locB)

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