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在X条码的地图Kit中将图像输入MKOverlay语
原标题:Putting an image into an MKOverlayView in the MapKit in Xcode

I want to make a mapkit overlay with a png, but i have no code for it and I cant find any tutorials on it. I am a novice coder, so lots of help would be greatly appreciated!
Thanks

问题回答

你们需要做一些事情才能做到:

  1. Create a custom MKOverlayView subclass that actually draws your image.
  2. Add an overlay (an object that implements the MKOverlay protocol) to your MKMapView. Apple provides a number of overlay classes—MKCircle, MKPolygon, etc.—one is likely to be suitable.
  3. Implement the mapView:viewForOverlay: method in your MKMapView s delegate to return an instance of your custom overlay view.

展示“地图上的超支”应有助于澄清所有这些步骤。 关于图画,请见ContextDrawImage()<<





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