- 地图开发注意：
- 项目中必须添加MapKit/MapKit框架
- 地图导航注意：
- 设置起点和终点
- 设置导航参数
- 通过MKMapItem调用类方法openMapsWithItems
- 地图显示行走路线注意：
- 设置请求方向
- 创建方向
- 在代理方法中返回遮盖物view
** Demo百度云网盘下载地址：链接: http://pan.baidu.com/s/1xwuiq 密码: ih36**
@interface ViewController ()<MKMapViewDelegate]] ]]> @property (weak, nonatomic) IBOutlet MKMapView *mapkit;
@property (nonatomic, strong) CLGeocoder *gecoder;
@property (nonatomic, strong) MKPlacemark *mkPlaceMark1;
@property (nonatomic, strong) MKPlacemark *mkPlaceMark2;
- (IBAction)myLocation;
@end
@implementation ViewController
- (void)viewDidLoad{
[super viewDidLoad];
[self addNavigationNutton];
self.mapkit.userTrackingMode = MKUserTrackingModeFollow;
self.mapkit.delegate = self;
NSString *city1 = @"北京";
NSString *city2 = @"广州"; // 地理编码 （北京）
[self.gecoder geocodeAddressString:city1 completionHandler:^(NSArray *placemarks, NSError *error) { CLPlacemark *placeMark1 = [placemarks firstObject];
// 添加大头针 （北京）
HSLAnnotion *ann1 = [[HSLAnnotion alloc]init];
ann1.coordinate = placeMark1.location.coordinate;
ann1.title = city1;
ann1.subtitle = placeMark1.name;
[self.mapkit addAnnotation:ann1];
// 地理编码 （广州）
[self.gecoder geocodeAddressString:city2 completionHandler:^(NSArray *placemarks, NSError *error) {
CLPlacemark *placeMark2 = [placemarks firstObject];
// 添加大头针 （广州）
HSLAnnotion *ann2 = [[HSLAnnotion alloc]init]; ann2.coordinate = placeMark2.location.coordinate; ann2.title = city2;
ann2.subtitle = placeMark2.name;
[self.mapkit addAnnotation:ann2];
// 开始画线
[self drawLineWithSourceCLPm:placeMark1 destinationCLPm:placeMark2];
}];
}];
}
//添加北京到广州的导航按钮
- (void)addNavigationNutton{
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(200, 370, 100, 30);
[button setTitle:@"start Nav" forState:UIControlStateNormal]; [button setBackgroundColor:[UIColor greenColor]];
[button addTarget:self action:@selector(startNavigation) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:button];
}
//打开北京到广州的导航功能
- (void)startNavigation{
// 起点
MKMapItem *item1 = [[MKMapItem alloc]initWithPlacemark:self.mkPlaceMark1];
// 终点
MKMapItem *item2 = [[MKMapItem alloc]initWithPlacemark:self.mkPlaceMark2];
// 添加起点终点到数组中
NSArray *array = @[item1, item2];
// 设置导航参数
NSMutableDictionary *dict = [NSMutableDictionary dictionary];
// 设置驾车模式
dict[MKLaunchOptionsDirectionsModeDriving] = MKLaunchOptionsDirectionsModeKey;
// 打开路况信息
dict[MKLaunchOptionsShowsTrafficKey] = @(YES);
[MKMapItem openMapsWithItems:array launchOptions:dict];
}
- (void)drawLineWithSourceCLPm:(CLPlacemark *)sourceCLPm destinationCLPm:(CLPlacemark *)destinationCLPm
{
// 设置方向请求
MKDirectionsRequest *request = [[MKDirectionsRequest alloc]init];
// 起点
MKPlacemark *place1 = [[MKPlacemark alloc]initWithPlacemark:sourceCLPm];
request.source = [[MKMapItem alloc]initWithPlacemark:place1];
self.mkPlaceMark1 = place1;
// 终点
MKPlacemark *place2 = [[MKPlacemark alloc]initWithPlacemark:destinationCLPm];
request.destination = [[MKMapItem alloc]initWithPlacemark:place2];
self.mkPlaceMark2 = place2;
MKDirections *dirce = [[MKDirections alloc]initWithRequest:request];
// 创建方向
[dirce calculateDirectionsWithCompletionHandler:^(MKDirectionsResponse *response, NSError *error)
{
if (error) return ;
// 在mapview上添加遮盖
for (MKRoute *routess in response.routes)
{
[self.mapkit addOverlay:routess.polyline];
}
}];
}
- (CLGeocoder *)gecoder{
if (_gecoder == nil) {
self.gecoder = [[CLGeocoder alloc]init];
}
return _gecoder;
}
// 代理方法
- (MKOverlayRenderer *)mapView:(MKMapView *)mapView rendererForOverlay:(id<MKOverlay>)overlay{
// 添加折现遮盖
MKPolylineRenderer *poly = [[MKPolylineRenderer alloc]initWithOverlay:overlay];
poly.lineWidth = 3;
poly.strokeColor = [UIColor redColor];
return poly;
}
- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation{
CLLocationCoordinate2D coor = userLocation.location.coordinate;
[self.mapkit setCenterCoordinate:coor animated:YES]; MKCoordinateRegion regin = MKCoordinateRegionMake(coor, MKCoordinateSpanMake(0.2, 0.3));
[self.mapkit setRegion:regin animated:YES];
}
- (IBAction)myLocation {
CLLocationCoordinate2D coor = self.mapkit.userLocation.location.coordinate;
[self.mapkit setCenterCoordinate:coor animated:YES];
}
@end
