ios - Displaying Direction on Map in iOS MapKit

Question

I am new into using MapKit in iOS. I would like to display an arrow image on the route joining two points in iOS MapKit. I am able to place the arrow's image as an annotation pin at any point in the route, but I am not able to orient it properly. How can I orient the arrow properly to point properly.

Thanks in advance for the help!

Answer 1

如果您尝试连接地图上的两个点，您将需要使用叠加层 ( MKOverlay) 而不是注释。注释用作单个点的地图标记。

如果您只想在指向另一点的一个点上有一个箭头，您可以通过子类化MKAnnotationand来实现MKAnnotationView。在您的 subclassedMKAnnotation中，添加一个额外的类型属性，CLLocationCoordinate2D用于定义箭头指向的位置。然后，在MKAnnotationView使用这两个坐标来计算箭头的方向并相应地调整图像。