如何在MKMapview上跟踪用户位置并在用户路径上画线 [英] How to trace users location on MKMapview and draw line on users path

问题描述

当用户单击地图上的按钮并沿着该路径绘制一条蓝线或红线时，我想在mapView上跟踪我的用户路径，如下图所示.我也想测量用户的行进距离.目前，我正在使用MKMapView.使用iOS地图套件可以完成此任务吗?还是我应该继续使用Google Maps SDK.我刚刚开始学习iOS开发，如果您发现问题不对，请多多包涵. 预先感谢...;)

I would like to trace my users path on mapView when the user clicks a button on the map and draw a blue or red line along the path like shown in the image below. Also I would like to measure the distance traveled by the user. Currently I am using MKMapView. Is this task possible with iOS map kit or should i move on to using Google maps SDK. I've just started learning iOS development please bear with me if you find the question out of order. Thanks in advance...;)

推荐答案

google ios sdk https ://developers.google.com/maps/documentation/ios/遵循此步骤.

#import <GoogleMaps/GoogleMaps.h>
#import "DemoViewController.h"

@implementation DemoViewController

- (void)viewDidLoad {
  [super viewDidLoad];
  GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:0
                                                          longitude:-165
                                                               zoom:2];
  GMSMapView *mapView = [GMSMapView mapWithFrame:CGRectZero camera:camera];

  GMSMutablePath *path = [GMSMutablePath path];
  [path addLatitude:-33.866 longitude:151.195]; // Sydney
  [path addLatitude:-18.142 longitude:178.431]; // Fiji
  [path addLatitude:21.291 longitude:-157.821]; // Hawaii
  [path addLatitude:37.423 longitude:-122.091]; // Mountain View

  GMSPolyline *polyline = [GMSPolyline polylineWithPath:path];
  polyline.strokeColor = [UIColor blueColor];
  polyline.strokeWidth = 5.f;
  polyline.map = mapView;

  self.view = mapView;
}

@end

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