ios MKMapView：在注释图钉上获取点击事件
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MKMapView: Get clicked event on annotation pin
提问by squeezer123
I am using an MKMapViewcontaining a couple of MKAnnotationpins.
Above the map I am showing a UITableViewwith detailed information of the MKAnnotationpins.
我正在使用一个MKMapView包含几个MKAnnotation引脚的。
在地图上方，我显示了引脚的UITableView详细信息MKAnnotation。
My problem: When I select a pin, I would like to select the corresponding table cell. For this I would like to catch an event/delegate if the pin is selected. I am not talking about calling the callout accessory
我的问题：当我选择一个引脚时，我想选择相应的表格单元格。为此，如果选择了引脚，我想捕获一个事件/委托。我不是在谈论调用标注附件
- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control
回答by software evolved
Just an update to this -- in iOS 4 there are MKMapViewDelegate methods that can be used to track annotation selection and de-selection:
只是对此的更新 - 在 iOS 4 中有 MKMapViewDelegate 方法可用于跟踪注释选择和取消选择：
- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view
- (void)mapView:(MKMapView *)mapView didDeselectAnnotationView:(MKAnnotationView *)view
回答by squeezer123
you can use an Observer for Selected-Event:
您可以为 Selected-Event 使用 Observer：
[pin addObserver:self
forKeyPath:@"selected"
options:NSKeyValueObservingOptionNew
context:@"ANSELECTED"];
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context{
NSString *action = (NSString*)context;
if([action isEqualToString:@"ANSELECTED"]){
BOOL annotationAppeared = [[change valueForKey:@"new"] boolValue];
if (annotationAppeared) {
// clicked on an Annotation
}
else {
// Annotation disselected
}
}
}
回答by Will Harris
I haven't seen a simple way to do this in MapKit. There's no mapView:annotationWasTapped:on the delegate.
我还没有在 MapKit 中看到一种简单的方法来做到这一点。mapView:annotationWasTapped:代表上没有。
One way to do it would be to provide your own annotation view subclass. The custom annotation view could capture the pin selection in setSelected:animated:or in a lower level event handler and pass that information up to your view controller.
一种方法是提供您自己的注释视图子类。自定义注释视图可以setSelected:animated:在较低级别的事件处理程序中或中捕获引脚选择，并将该信息传递给您的视图控制器。
