作者:我是谁_2502894917 | 来源:互联网 | 2023-05-18 19:21
在MkMapView中添加自己当前位置的大头针的基础上实现指定位置添加大头针,实现的效果如下:添加相关代码:添加DisplayMap:#import<Foun
在MkMapView中添加自己当前位置的大头针的基础上实现指定位置添加大头针,实现的效果如下:
添加相关代码:
添加DisplayMap :
#import
#import
@interface DisplayMap : NSObject
{
CLLocationCoordinate2D coordinate;
NSString *title;
NSString *subtitle;
}
@property (nonatomic, assign) CLLocationCoordinate2D coordinate;
@property (nonatomic, copy) NSString *title;
@property (nonatomic, copy) NSString *subtitle;
@end
#import "DisplayMap.h"
@implementation DisplayMap
@synthesize coordinate,title,subtitle;
-(void)dealloc{
[title release];
[super dealloc];
}
@end
修改collert中的代码:
- (void)viewDidLoad {
[super viewDidLoad];
//mapView.showsUserLocation=YES;
self.mapView.delegate=self;
CLLocationManager *locatiOnManager= [[CLLocationManager alloc] init];//创建位置管理器
locationManager.delegate=self;//设置代理
locationManager.desiredAccuracy=kCLLocationAccuracyBest;//指定需要的精度级别
locationManager.distanceFilter=1000.0f;//设置距离筛选器
[locationManager startUpdatingLocation];//启动位置管理器
MKCoordinateRegion theRegion = { {0.0, 0.0 }, { 0.0, 0.0 } };
theRegion.center=[[locationManager location] coordinate];
[locationManager release];
[mapView setZoomEnabled:YES];
[mapView setScrollEnabled:YES];
theRegion.span.lOngitudeDelta= 0.01f;
theRegion.span.latitudeDelta = 0.01f;
[mapView setRegion:theRegion animated:YES];
DisplayMap *ann = [[DisplayMap alloc] init];
ann.title = @"欧陆经典";
ann.subtitle = @"vsp";
//地点名字
ann.coordinate = theRegion.center;
[mapView addAnnotation:ann];
}
- (MKAnnotationView *)mapView:(MKMapView *)mV viewForAnnotation:(id )annotation
{
MKPinAnnotationView *pinView = nil;
if(annotation != mapView.userLocation)
{
static NSString *defaultPinID = @"com.invasivecode.pin";
pinView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:defaultPinID];
if ( pinView == nil ) pinView = [[[MKPinAnnotationView alloc]
initWithAnnotation:annotation reuseIdentifier:defaultPinID] autorelease];
pinView.pinColor = MKPinAnnotationColorRed;
pinView.canShowCallout = YES;
pinView.animatesDrop = YES;
}
else {
[mapView.userLocation setTitle:@"欧陆经典"];
[mapView.userLocation setSubtitle:@"vsp"];
}
return pinView;
}
http://www.mobiletrain.org/lecture/doc/iphone/2011-09/696.html