#import "ViewController.h"
#import <CoreLocation/CoreLocation.h>
#import <MapKit/MapKit.h>
@interface ViewController ()<MKMapViewDelegate>
@property(nonatomic ,strong)MKMapView * map;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
MKMapView * map = [[MKMapView alloc]initWithFrame:self.view.bounds];
self.map = map;
self.map.delegate = self;
[self.view addSubview:map];
CLGeocoder * geoCode = [[CLGeocoder alloc]init];
[geoCode geocodeAddressString:@"北京" completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
//通过coreLocation 的CLPlacemark 获取地面 装换为MKPlacemark
MKPlacemark * place1 = [[MKPlacemark alloc]initWithPlacemark:[placemarks firstObject]];
[geoCode geocodeAddressString:@"武汉" completionHandler:^(NSArray<CLPlacemark *> * _Nullable placemarks, NSError * _Nullable error) {
MKPlacemark * place2 = [[MKPlacemark alloc]initWithPlacemark:[placemarks firstObject]];
//创建方向请求
MKDirectionsRequest * request = [[MKDirectionsRequest alloc]init];
request.source = [[MKMapItem alloc]initWithPlacemark:place1];
request.destination = [[MKMapItem alloc]initWithPlacemark:place2];
//创建方向对象
MKDirections * direction = [[MKDirections alloc]initWithRequest:request];
//计算方向 添加蒙版 也就是划线
[direction calculateDirectionsWithCompletionHandler:^(MKDirectionsResponse * _Nullable response, NSError * _Nullable error) {
for (MKRoute * route in response.routes) {
[self.map addOverlay:route.polyline];
}
}];
}];
}];
}
//当添加折线时,调用 , 返回一个折线渲染器
-(MKOverlayRenderer *)mapView:(MKMapView *)mapView rendererForOverlay:(id<MKOverlay>)overlay
{
MKPolylineRenderer * polylineRenderer = [[MKPolylineRenderer alloc]initWithPolyline:overlay];
polylineRenderer.lineWidth = 2;
polylineRenderer.strokeColor = [UIColor orangeColor];
return polylineRenderer;
}
