PROSAGA码农传奇-swift/objective-C-如何在Objective-C中实现MKClusterAnnotations？

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    这是一个基本的例子，就像几个步骤一样简单
  
  
    1）在其中添加以下注释
     <code>
 viewDidLoad
 </code>
     会工作得很好
  
   <pre>
 <code>
 MKPointAnnotation *point1 = [[MKPointAnnotation alloc] init];
CLLocationCoordinate2D c1;
c1.latitude = 46.469391;
c1.longitude = 30.740883;
point1.coordinate = c1;
point1.title = @"Minsk, Belarus";
[self.mapView addAnnotation:point1];

MKPointAnnotation *point2 = [[MKPointAnnotation alloc] init];
CLLocationCoordinate2D c2;
c2.latitude = 46.469391;
c2.longitude = 30.740883;
point2.coordinate = c2;
point2.title = @"Odessa, Ukraine";
[self.mapView addAnnotation:point2];

</code>
 </pre>
  
    2）在mapView中：MKMapViewDelegate的viewForAnnotation为注释提供可重用的视图，如下所示：
  
   <pre>
 <code>
 - (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation {
 if ([annotation isKindOfClass:[MKPointAnnotation class]]) {

MKMarkerAnnotationView* annotationView = (MKMarkerAnnotationView *) (MKMarkerAnnotationView *)[_mapView dequeueReusableAnnotationViewWithIdentifier:@"Jacky.S"];
        if (annotationView == nil) {
            annotationView = [[MKMarkerAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"Jacky.S"];
            annotationView.enabled = YES;
            annotationView.clusteringIdentifier = @"pins";
            // annotationView.glyphImage = [UIImage imageNamed:@"we can use a nice image instead of the default pins"];
        } else {
            annotationView.annotation = annotation;
            annotationView.clusteringIdentifier = @"pins";
        }
        return annotationView;
    }
    return nil;
}

</code>
 </pre>
  
    别忘了设置
     <code>
 MKMapViewDelegate
 </code>
     至
     <code>
 UIViewController
 </code>
  
   <pre>
 <code>
 [self.mapView setDelegate:self];

</code>
 </pre>
  
    的
      更新
    </强>
     刚刚发完了一个
    <a href="https://gist.github.com/r-aamir/4d2fbc7c2d3f98682a57212b4543111b" rel="nofollow noreferrer">
      要旨
    </A>
     展示了如何子类化
     <code>
 MKMarkerAnnotationView
 </code>
  
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