Ios 使用swift 2.1中的MapKit添加不同的pin颜色
我是斯威夫特的新手。我正在尝试在特定的pin上使用不同颜色的pin或自定义pin。我的代码有效。我有一个紫色的别针,但我想把它们区别开来。我怎么做?我认为在MapView委托方法中可以做些什么,但我没有找到它Ios 使用swift 2.1中的MapKit添加不同的pin颜色,ios,swift,mapkit,swift2,Ios,Swift,Mapkit,Swift2,我是斯威夫特的新手。我正在尝试在特定的pin上使用不同颜色的pin或自定义pin。我的代码有效。我有一个紫色的别针,但我想把它们区别开来。我怎么做?我认为在MapView委托方法中可以做些什么,但我没有找到它 import UIKit import MapKit class MapsViewController: UIViewController , MKMapViewDelegate{ var shops: NSArray? { didSet{
import UIKit
import MapKit
class MapsViewController: UIViewController , MKMapViewDelegate{
var shops: NSArray? {
didSet{
self.loadMaps()
}
}
@IBOutlet weak var map: MKMapView?
override func viewDidLoad() {
super.viewDidLoad()
loadMaps()
self.title = "Carte"
self.map!.delegate = self
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
// simple and inefficient example
let annotationView = MKPinAnnotationView()
annotationView.pinTintColor = UIColor.purpleColor()
return annotationView
}
func loadMaps(){
// navigationController?.navigationBar.topItem!.title = "Carte"
let shopsArray = self.shops! as NSArray
for shop in shopsArray {
let location = CLLocationCoordinate2D(
latitude: shop["lat"] as! Double,
longitude: shop["long"] as! Double
)
let annotation = MKPointAnnotation()
annotation.coordinate = location
annotation.title = shop["name"] as? String
annotation.subtitle = shop["addresse"] as? String
map?.addAnnotation(annotation)
}
// add point
}
/*
// MARK: - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
}
*/
}
更好的方法是使用实现
MKAnnotation
协议的自定义注释类(一种简单的方法是子类化MKPointAnnotation
),并添加帮助实现自定义逻辑所需的任何属性
在custom类中,添加一个属性,例如pinColor
,您可以使用该属性自定义注释的颜色
此示例将MKPointAnnotation子类化:
import UIKit
import MapKit
class ColorPointAnnotation: MKPointAnnotation {
var pinColor: UIColor
init(pinColor: UIColor) {
self.pinColor = pinColor
super.init()
}
}
创建类型为ColorPointAnnotation
的批注,并设置其pinColor
:
let annotation = ColorPointAnnotation(pinColor: UIColor.blueColor())
annotation.coordinate = coordinate
annotation.title = "title"
annotation.subtitle = "subtitle"
self.mapView.addAnnotation(annotation)
func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
if annotation is MKUserLocation {
return nil
}
let reuseId = "pin"
var pinView = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId) as? MKPinAnnotationView
if pinView == nil {
pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
let colorPointAnnotation = annotation as! ColorPointAnnotation
pinView?.pinTintColor = colorPointAnnotation.pinColor
}
else {
pinView?.annotation = annotation
}
return pinView
}
在viewForAnnotation中,使用pinColor
属性设置视图的pinTintColor
:
let annotation = ColorPointAnnotation(pinColor: UIColor.blueColor())
annotation.coordinate = coordinate
annotation.title = "title"
annotation.subtitle = "subtitle"
self.mapView.addAnnotation(annotation)
func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
if annotation is MKUserLocation {
return nil
}
let reuseId = "pin"
var pinView = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId) as? MKPinAnnotationView
if pinView == nil {
pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
let colorPointAnnotation = annotation as! ColorPointAnnotation
pinView?.pinTintColor = colorPointAnnotation.pinColor
}
else {
pinView?.annotation = annotation
}
return pinView
}
好的,非常感谢!我会试试这个,但我不明白一件事,我在哪里可以定义“重新隔离”?是一个点的id吗??对不起,我英语不好,我是法国人。。。再次感谢您的帮助:)您可以在
viewForAnnotation
中定义reuseId
:-)例如let reuseId=“pin”
这只在iOS 9及以上版本上有效,那么pinView.pinColor=MKPinAnnotationColor.Purple
您不能更改其他颜色。我想pinView!。canShowCallout=true
将是对if子句中mapView委托函数的一个很好的补充。