集群注释覆盖非集群注释

Question

我在我的MKMapView上有大约500个注释，我用OCMapView将它们聚集在一起，这个集合取代了普通的MKMapView。无论如何，我的注释聚集在一起，但不是很好，为什么我需要一点帮助。我看到聚集的注释，他们互相更新很好。如果我放大他们附近他们uncluster。到目前为止这么好，但所有单个注释都被命名为Cluster，并且它们的计数为零。也许这只是一个小问题/逻辑问题。对于这里有些了解一些代码对你：

#pragma mark - map delegate 
- (MKAnnotationView *)mapView:(MKMapView *)aMapView viewForAnnotation:(id <MKAnnotation>)annotation 
{ 
    MKAnnotationView *annotationView; 

    // if it's a cluster 
    if ([annotation isKindOfClass:[OCAnnotation class]]) 
    { 

     OCAnnotation *clusterAnnotation = (OCAnnotation *)annotation; 

     annotationView = (MKAnnotationView *)[aMapView dequeueReusableAnnotationViewWithIdentifier:@"ClusterView"]; 
     if (!annotationView) 
     { 
      annotationView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"ClusterView"]; 
      annotationView.canShowCallout = YES; 
      annotationView.centerOffset = CGPointMake(0, -20); 
     } 
     //calculate cluster region 
     CLLocationDistance clusterRadius = mapView.region.span.longitudeDelta * mapView.clusterSize * 111000/2.0f; //static circle size of cluster 

     MKCircle *circle = [MKCircle circleWithCenterCoordinate:clusterAnnotation.coordinate radius:clusterRadius * cos([annotation coordinate].latitude * M_PI/180.0)]; 
     [circle setTitle:@"background"]; 
     [mapView addOverlay:circle]; 

     MKCircle *circleLine = [MKCircle circleWithCenterCoordinate:clusterAnnotation.coordinate radius:clusterRadius * cos([annotation coordinate].latitude * M_PI/180.0)]; 
     [circleLine setTitle:@"line"]; 
     [mapView addOverlay:circleLine]; 
     NSLog(@"%@", annotationArray); 

     // set title 
     clusterAnnotation.title = @"Cluster"; 
     clusterAnnotation.subtitle = [NSString stringWithFormat:@"Containing annotations: %d", [clusterAnnotation.annotationsInCluster count]]; 

     // set its image 
     annotationView.image = [UIImage imageNamed:@"Pin.png"]; 

     // change pin image for group 
     if (mapView.clusterByGroupTag) 
     { 
      if ([clusterAnnotation.groupTag isEqualToString:kTYPE1]) 
      { 
       annotationView.image = [UIImage imageNamed:@"bananas.png"]; //OC examples for debug 
      } 
      else if([clusterAnnotation.groupTag isEqualToString:kTYPE2]) 
      { 
       annotationView.image = [UIImage imageNamed:@"oranges.png"]; //OC examples for debug 
      } 
      clusterAnnotation.title = clusterAnnotation.groupTag; 
     } 
    } 
    // If it's a single annotation 
    else if([annotation isKindOfClass:[OCMapViewHelpAnnotation class]]) 
    { 
     OCMapViewHelpAnnotation *singleAnnotation = (OCMapViewHelpAnnotation *)annotation; 
     annotationView = (MKAnnotationView *)[aMapView dequeueReusableAnnotationViewWithIdentifier:@"singleAnnotationView"]; 
     if (!annotationView) 
     { 
      annotationView = [[MKAnnotationView alloc] initWithAnnotation:singleAnnotation reuseIdentifier:@"singleAnnotationView"]; 
      annotationView.canShowCallout = YES; 
      annotationView.centerOffset = CGPointMake(0, -20); 
     } 
     singleAnnotation.title = singleAnnotation.groupTag; 

     if ([singleAnnotation.groupTag isEqualToString:kTYPE1]) 
     { 
      annotationView.image = [UIImage imageNamed:@"banana.png"]; 
     } 
     else if([singleAnnotation.groupTag isEqualToString:kTYPE2]) 
     { 
      annotationView.image = [UIImage imageNamed:@"orange.png"]; 
     } 
    } 
    // Error 
    else 
    { 
     annotationView = (MKPinAnnotationView *)[aMapView dequeueReusableAnnotationViewWithIdentifier:@"errorAnnotationView"]; 
     if (!annotationView) 
     { 
      annotationView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"errorAnnotationView"]; 
      annotationView.canShowCallout = NO; 
      ((MKPinAnnotationView *)annotationView).pinColor = MKPinAnnotationColorRed; 
     } 
    } 

    return annotationView; 
} 

- (MKOverlayView *)mapView:(MKMapView *)mapView viewForOverlay:(id <MKOverlay>)overlay 
{ 
    MKCircle *circle = overlay; 
    MKCircleView *circleView = [[MKCircleView alloc] initWithCircle:overlay]; 

    if ([circle.title isEqualToString:@"background"]) 
    { 
     circleView.fillColor = [UIColor yellowColor]; 
     circleView.alpha = 0.25; 
    } 
    else if ([circle.title isEqualToString:@"helper"]) 
    { 
     circleView.fillColor = [UIColor redColor]; 
     circleView.alpha = 0.25; 
    } 
    else 
    { 
     circleView.strokeColor = [UIColor blackColor]; 
     circleView.lineWidth = 0.5; 
    } 

    return circleView; 
} 

- (void)mapView:(MKMapView *)aMapView regionDidChangeAnimated:(BOOL)animated 
{ 
    [mapView removeOverlays:mapView.overlays]; 
    [mapView doClustering]; 
} 

我注意到，if([annotation isKindOfClass:[OCMapViewHelpAnnotation class]])是从来没有所谓，但要如果有集群之外的一些注解。

感谢您的关注

编辑

通常它充满了像“名称”和“街”的信息，但绘制它覆盖所有与“集群”之后“包含注释：0”

编辑2

- (void)loadKml:(NSURL *)url 
{ 
    // parse the kml 

    Parser *parser = [[Parser alloc] initWithContentsOfURL:url]; 
    parser.rowElementName = @"Placemark"; 
    parser.elementNames = @[@"name", @"Snippet", @"coordinates", @"description"]; 
    //parser.attributeNames = @[@"src"]; 
    [parser parse]; 

    // add annotations for each of the entries 
    annotationArray = [[NSMutableArray alloc] init]; 

    for (NSDictionary *locationDetails in parser.items) 
    { 
     OCAnnotation *annotation = [[OCAnnotation alloc] init]; 
     annotation.title = locationDetails[@"name"]; 
     annotation.subtitle = locationDetails[@"Snippet"]; 
     NSArray *coordinates = [locationDetails[@"coordinates"] componentsSeparatedByString:@","]; 
     annotation.coordinate = CLLocationCoordinate2DMake([coordinates[1] floatValue], [coordinates[0] floatValue]); 
     annotation.groupTag = annotation.title; 
     [annotationArray addObject:annotation]; 
//  NSLog(@"%@", annotation.title); 
    } 
    [self.mapView addAnnotations:annotationArray]; 
} 

Answer 1

我是OCMapView的开发者。你能解释一下，如何重现你的问题？
这听起来还真不寻常的，因为你已经发布的代码示例...

---

更新：
的错误在你loadKml:方法隐藏在其中创建一个OCAnnotation。
OCAnnotation由群集的OCMapView保留。您不应该使用OCAnnotation或任何子类作为自己的注释。