如何从iOS中的地图引脚获取位置

I am using the MKMapView object and I am able to create pins and place them on the map. What I am trying to do now is get the information back from the pin. For example in my

我正在使用MKMapView对象，我可以创建引脚并将它们放在地图上。我现在要做的是从引脚返回信息。例如在我的

- (MKAnnotationView*) mapView:(MKMapView *)mapView viewForAnnotation (id<MKAnnotation>)annotation

I create my pins and set them on the map. I am also creating buttons to use when a user clicks on the pin. All that works well and good. Now my question is when that button is clicked how do I get information from that clicked pin? Below is a small sample code of how I currently have it setup. Any advice would be greatly appreciated.

我创建我的引脚并将它们设置在地图上。我也在创建用户点击引脚时使用的按钮。一切都运作良好。现在我的问题是当点击该按钮时如何从该点击的引脚获取信息？下面是我目前如何设置它的一个小示例代码。任何建议将不胜感激。

- (MKAnnotationView*) mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation
{
    MKPinAnnotationView *annView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"location"];
    annView.pinColor = MKPinAnnotationColorRed;
    annView.animatesDrop = YES;
    annView.canShowCallout = YES;
    annView.calloutOffset = CGPointMake(-5, 5);

    UIButton* callout = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
    [callout addTarget:self action:@selector(loadDetails:) forControlEvents:UIControlEventTouchUpInside];
    annView.rightCalloutAccessoryView = callout;
    return annView;
}

- (void)loadDetails:(id)sender
{
    //TODO: Get pin coordinates or address and match it back to an array of available address to show details in a new view
}

Any advice is greatly appreciated

任何意见是极大的赞赏

2 个解决方案

#1

Instead of setting the target of your callout, respond to the delegate method

而不是设置标注的目标，响应委托方法

mapView:annotationView:calloutAccessoryControlTapped:

The annotationView will have an annotation property with the coordinate.

annotationView将具有带坐标的注释属性。

#2

You should create a class that derives from MKPinAnnotationView that has a property of id<MkAnnotationView>. During the method above, create this new object instead of the MKPinAnnotationView and set the id<MKAnnotation> property to the annotation passed in.

您应该创建一个派生自MKPinAnnotationView的类，该类具有id 的属性。在上面的方法中，创建此新对象而不是MKPinAnnotationView，并将id 属性设置为传入的注释。

#1