Question

我在地图视图中添加多个标记，如下所示，

markers = [jsonDict objectForKey:key];
            for (id k in markers) {

                if ([k isEqualToString:@"latitude"]) {

                    mlat = [markers objectForKey:k];
                    dlat = [mlat doubleValue];
                }

                else if ([k isEqualToString:@"longitude"]) {

                    mlng = [markers objectForKey:k];
                    dlng = [mlng doubleValue];
                }


                else if ([k isEqualToString:@"file"]){
                    murl = [markers objectForKey:k];
                }

                else if ([k isEqualToString:@"comment"]){
                    mcomment = [markers objectForKey:k];
                }

            }
            annotationCoord.latitude = dlat;
            annotationCoord.longitude = dlng;
            MKPointAnnotation *annotationPoint = [[MKPointAnnotation alloc] init];
            annotationPoint.coordinate = annotationCoord;
            [self.navimap addAnnotation:annotationPoint];

现在，我想为comment中的每个标记获取“file”和“didSelectAnnotationView”的值。如果有人帮助我，我将不胜感激。

Answer 1

您应该创建一个自定义注释类并使用它而不是MKPointAnnotation：

#import <MapKit/MapKit.h>

@interface Marker : NSObject <MKAnnotation>

@property (nonatomic, copy) NSString *title;
@property (nonatomic, copy) NSString *subtitle;
@property (nonatomic) CLLocationCoordinate2D coordinate;
@property (nonatomic,copy) NSString* url;
@property (nonatomic,copy) NSString* comment;

@end

然后您可以像这样实施didSelectAnnotationView：

-(void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
{        
    if ([view.annotation isKindOfClass:[Marker class]]) {
        Marker* marker = view.annotation;
        NSLog(@"selected marker %@", marker);
    }
}

确实为多个标记选择了注释

1 个答案: