确定选择了哪个MKPinAnnotationView? [英] Determine which MKPinAnnotationView was selected?

问题描述

我在地图上放置了一些自定义MKPinAnnotationView，其中包含有关地标的不同信息(名称，描述，图像，附件按钮).当用户单击并打开其中的一个针脚，然后单击其中的附件按钮时，我想知道用户单击了哪个针脚，以便为视图控制器加载更详细的信息.

I place some custom MKPinAnnotationView on the map, with different information about landmarks (name, description, image, accessory button). When a user click and open one of the pins, and then click the accessory button inside it, I want to know which of the pins the user have clicked so I can load a viewcontroller with more detailed information.

我发现了这些方法:

- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
{
}

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

...但是我怎么知道选择了哪个引脚?我想做类似的事情:

... but how do I know which pin was selected? I would like to do something like:

   - (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view   
    {
        //Example
        if ([view.description isEqualToString: @"Golden Gate"])
        {
             //Load golden gate information in a new viewcontroller
        }
    }

...但是view.description不会给我正确的信息.

...but view.description won't give me the right information.

预先感谢

推荐答案

如果将名称/描述存储在MKAnnotationView的title/subtitle中，则只需访问以下信息即可访问这些信息

If you're storing the name/description in the title/subtitle of your MKAnnotationView you can access these informations just by accessing to the annotation property of the MKAnnotationView:

if ([view.annotation.title isEqualToString: @"Golden Gate"])
   {
         //Load golden gate information in a new viewcontroller
   }

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