Ios 删除MKMapView Swift中的Pin注释问题
我有一个地图视图,它允许我使用Ios 删除MKMapView Swift中的Pin注释问题,ios,swift,mkmapview,uigesturerecognizer,uitapgesturerecognizer,Ios,Swift,Mkmapview,Uigesturerecognizer,Uitapgesturerecognizer,我有一个地图视图,它允许我使用ui长按手势识别器向地图添加注释及其信息。然后,我添加了一个uitappesturerecognizer,希望在用户单击地图时删除该注释。它工作得很好 我遇到的问题是,当我点击pin时,它也会将其删除。我想能够点击pin显示它的信息,然后能够点击地图视图并删除pin class ViewController: UIViewController { @IBOutlet weak var myMap: MKMapView! let annotation = MKPo
ui长按手势识别器
向地图添加注释及其信息。然后,我添加了一个uitappesturerecognizer
,希望在用户单击地图时删除该注释。它工作得很好
我遇到的问题是,当我点击pin时,它也会将其删除。我想能够点击pin显示它的信息,然后能够点击地图视图并删除pin
class ViewController: UIViewController {
@IBOutlet weak var myMap: MKMapView!
let annotation = MKPointAnnotation()
override func viewDidLoad() {
super.viewDidLoad()
let location = CLLocationCoordinate2D(latitude: 32.92, longitude: -96.46)
let span = MKCoordinateSpanMake(0.05, 0.05)
let region = MKCoordinateRegion(center: location, span: span)
myMap.setRegion(region, animated: true)
var longPress = UILongPressGestureRecognizer(target: self, action: "addAnnotation:")
longPress.minimumPressDuration = 2.0
myMap.addGestureRecognizer(longPress)
var tap = UITapGestureRecognizer(target: self, action: "removeAnnotation:")
tap.numberOfTapsRequired = 1
self.myMap.addGestureRecognizer(tap)
}
删除注释功能:
func removeAnnotation(gesture: UIGestureRecognizer) {
if gesture.state == UIGestureRecognizerState.Ended {
self.myMap.removeAnnotation(annotation)
println("Annotation Removed")
}
}
func addAnnotation(gesture: UIGestureRecognizer) {
if gesture.state == UIGestureRecognizerState.Began {
println("Long Press Started")
var touch = gesture.locationInView(self.myMap)
var coordinate = myMap.convertPoint(touch, toCoordinateFromView: self.myMap)
var location = CLLocationCoordinate2D(latitude: coordinate.latitude, longitude: coordinate.longitude)
var loc = CLLocation(latitude: coordinate.latitude, longitude: coordinate.longitude)
CLGeocoder().reverseGeocodeLocation(loc, completionHandler: { (placemarks, error) -> Void in
if error == nil {
// Placemark data includes information such as the country, state, city, and street address associated with the specified coordinate.
let placemark = CLPlacemark(placemark: placemarks[0] as! CLPlacemark)
var subthoroughfare = placemark.subThoroughfare != nil ? placemark.subThoroughfare : ""
var thoroughfare = placemark.thoroughfare != nil ? placemark.thoroughfare : ""
var city = placemark.subAdministrativeArea != nil ? placemark.subAdministrativeArea : ""
var state = placemark.administrativeArea != nil ? placemark.administrativeArea : ""
var title = "\(subthoroughfare) \(thoroughfare)"
var subTitle = "\(city),\(state)"
//let annotation = MKPointAnnotation()
self.annotation.coordinate = location
self.annotation.title = title
self.annotation.subtitle = subTitle
self.myMap.addAnnotation(self.annotation)
println("Annotation Added")
}
})
}
}
添加注释功能:
func removeAnnotation(gesture: UIGestureRecognizer) {
if gesture.state == UIGestureRecognizerState.Ended {
self.myMap.removeAnnotation(annotation)
println("Annotation Removed")
}
}
func addAnnotation(gesture: UIGestureRecognizer) {
if gesture.state == UIGestureRecognizerState.Began {
println("Long Press Started")
var touch = gesture.locationInView(self.myMap)
var coordinate = myMap.convertPoint(touch, toCoordinateFromView: self.myMap)
var location = CLLocationCoordinate2D(latitude: coordinate.latitude, longitude: coordinate.longitude)
var loc = CLLocation(latitude: coordinate.latitude, longitude: coordinate.longitude)
CLGeocoder().reverseGeocodeLocation(loc, completionHandler: { (placemarks, error) -> Void in
if error == nil {
// Placemark data includes information such as the country, state, city, and street address associated with the specified coordinate.
let placemark = CLPlacemark(placemark: placemarks[0] as! CLPlacemark)
var subthoroughfare = placemark.subThoroughfare != nil ? placemark.subThoroughfare : ""
var thoroughfare = placemark.thoroughfare != nil ? placemark.thoroughfare : ""
var city = placemark.subAdministrativeArea != nil ? placemark.subAdministrativeArea : ""
var state = placemark.administrativeArea != nil ? placemark.administrativeArea : ""
var title = "\(subthoroughfare) \(thoroughfare)"
var subTitle = "\(city),\(state)"
//let annotation = MKPointAnnotation()
self.annotation.coordinate = location
self.annotation.title = title
self.annotation.subtitle = subTitle
self.myMap.addAnnotation(self.annotation)
println("Annotation Added")
}
})
}
}
谢谢,,
杰克我发现通过点击地图上的任何地方来删除注释是非常违反直觉的。弹出带有“删除”按钮的批注视图不是一种可以想象的方式吗?只需在批注上再添加一个TapSirture,就可以完成您的工作。@zisoft我看了谷歌地图,从他们那里得到了想法。@ViralSavaj我该怎么做?在tap Sirture处理程序中,您可以检查批注视图是否被点击并执行其他操作。参见目标C中的示例: