mkannotation

问题 I am new in iOS and I implemented a MapKit with static markers from different arrays types and they are working fine , I am trying to put pins that come from shops array to be blue for example , and pins that come from community read , etc .. I have no idea about how to do this at all , they are all in red in the map and my goal is to change the color for every array of pins here what I have tried : import UIKit import MapKit class myMapViewController: UIViewController, MKMapViewDelegate {

问题 So I have a MKMapView with all my pins added, and the colour of the pin is dependent on whether a value is set for that pin. When I first load the app, viewForAnnotation is called and the colours are set accordingly. However, when I update the pin's details (such as location, title, etc...) I also update the pinColour to find it doesn't update. It looks like viewForAnnotation isn't called again after the initial add. I have read many questions similar to this and I can confirm that mapView

问题 So I have a MKMapView with all my pins added, and the colour of the pin is dependent on whether a value is set for that pin. When I first load the app, viewForAnnotation is called and the colours are set accordingly. However, when I update the pin's details (such as location, title, etc...) I also update the pinColour to find it doesn't update. It looks like viewForAnnotation isn't called again after the initial add. I have read many questions similar to this and I can confirm that mapView

问题 I'm trying work with Map Kit in Swift. I try to display the area on the map, some pins (MKPointAnnotation) and the current position. I decided to extend the class MKPointAnnotation - add a category. Class MyAnnotation.swift: import UIKit import MapKit class MyAnnotation: MKPointAnnotation { var category = Int() } I made an array of tuples to store information about the objects. In the loop I process all the elements of this array and make from it an array MyAnnotation . Then, I try to display

来源： https://stackoverflow.com/questions/64471948/remove-annotation-when-slider-moves-swift

来源： https://stackoverflow.com/questions/64471948/remove-annotation-when-slider-moves-swift

来源： https://stackoverflow.com/questions/63020138/how-to-custom-the-image-of-mkannotation-pin

来源： https://stackoverflow.com/questions/7780981/how-to-validate-latitude-and-longitude

来源： https://stackoverflow.com/questions/7780981/how-to-validate-latitude-and-longitude

来源： https://stackoverflow.com/questions/7780981/how-to-validate-latitude-and-longitude