优先考虑 MapKit 集群注释接触而不是地图覆盖接触

如何解决优先考虑 MapKit 集群注释接触而不是地图覆盖接触

我的地图有很多注释，我已经使用聚类进行了整理，效果很好。我的地图还使用 didSelectAnnotationView 来检查是否触摸了集群标记，这也很好用。但是，我遇到了一个问题，如果集群标记下方或附近还有地图覆盖，当我选择集群（期望它调用 didSelectAnnotationView）时，它会检测到地图覆盖被触摸。我有一些问题可能会引导我找到解决方案：

• 如果可能，我可以将地图叠加层添加为集群成员吗？这可能会立即解决我的问题。
• 如何确定或检查 MKClusterannotation 是否被触及 当附近还有一个叠加层/重叠层也响应触摸时？

选择集群标记后，将调用以下方法，检查是否触摸了集群标记，然后执行其他操作。正常情况下，当明显接触到集群标记时，这可以正常工作。

   - (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view {

   
      if ([[view annotation]  isKindOfClass:[MKClusterannotation class]]) {
        
        [myProjectMapViewController showMapClusterTable: view withClientProject: myProject];
        
      }
      else {
        ...Check for other types
      }
    
   }

选择映射覆盖时调用这些触摸方法。我尝试使用与上述相同的方法检查是否有被触及的集群，但无法找到断点。

-(void) eventStarttouches:(NSSet *) thetouches withEvent:(UIEvent *)event {
/// Note: Don't do anything here.

}

-(void) eventStoptouches:(NSSet *) thetouches withEvent:(UIEvent *)event {

UITouch *touch = [thetouches anyObject];
CGPoint point = [touch locationInView:myMapView];

CLLocationCoordinate2D coord = [myMapView convertPoint:point toCoordinateFromView:myMapView];

MKMapPoint mapPoint = MKMapPointForCoordinate(coord);



for (id potentialoverlay in myMapView.overlays) {
    // Go throw the overlays and test to see if we have a hit.
    
    
  
    if (![potentialoverlay isKindOfClass:[PSMapOverlay class]]) {
        
        continue;
    }
    
    
    
        PSMapOverlay *overlay = (PSMapOverlay*) potentialoverlay;
        id view = [myMapView rendererForOverlay:overlay];
        
        if ([view isKindOfClass:[mkpolygonrenderer class]]) {
            mkpolygonrenderer *polyView = (mkpolygonrenderer*) view;
            
            CGMutablePathRef mpr = CGPathCreateMutable();
            MKpolygon *polygon =((MKpolygon *) polyView.overlay);
            MKMapPoint *polygonPoints = polygon.points;
            for (int p=0; p < polygon.pointCount; p++)
            {
                MKMapPoint mp = polygonPoints[p];
                if (p == 0)
                    CGPathMovetoPoint(mpr,NULL,mp.x,mp.y);
                else
                    CGPathAddLinetoPoint(mpr,mp.y);
            }

            CGPoint mapPointAsCGP = CGPointMake(mapPoint.x,mapPoint.y);
            
            //CGPoint polygonViewPoint = [polyView pointForMapPoint:mapPoint];
           BOOL pointIsInpolygon = CGPathContainsPoint(mpr,mapPointAsCGP,FALSE);
         //   BOOL mapCoordinateIsInpolygon = CGPathContainsPoint(polyView.path,polygonViewPoint,NO);
            CGPathRelease(mpr);
            if (pointIsInpolygon) {
                
                [self _checkOverleyForEdit:overlay];
                break;
            } 
        }
        else if ([view isKindOfClass:[MKpolylineRenderer class]]) {
            
            MKpolylineRenderer *polyView = (MKpolylineRenderer*) view;
            MKMapPoint *mkMultiPoints = polyView.polyline.points;
            NSUInteger pointCount = polyView.polyline.pointCount;
            CGFloat distance;
            for(int i=0;i<pointCount-1;i++) {
                
                CLLocationCoordinate2D lineCoord = MKCoordinateForMapPoint(mkMultiPoints[i]);
                CGPoint segmentpixelPointV = [myMapView convertCoordinate:lineCoord toPointToView:myMapView];
                
                CLLocationCoordinate2D lineCoord2 = MKCoordinateForMapPoint(mkMultiPoints[i+1]);
                CGPoint segmentpixelPointW = [myMapView convertCoordinate:lineCoord2 toPointToView:myMapView];
                
                distance = distancetoSegment(point,segmentpixelPointV,segmentpixelPointW);
                
                if (distance < 20) {
                    [self _checkOverleyForEdit:overlay];
                    
                    break;
                }
            }
        }
    }
}

希望有人能帮忙，谢谢。