Xamarin.iOS的像素转换距离

Question

我试图找到Xamarin.iOS的像素转换距离。我知道这是你如何做到这一点，但你怎么会在Xamarin / c＃中做到这一点？

MKCoordinateRegion myRegion = MKCoordinateRegionMakeWithDistance（mapView.centerCoordinate，400,0）;

CGRect myRect = [mapView convertRegion：myRegion toRectToView：nil]; NSLog（@＆＃34;宽度为400米是％f＆＃34;，myRect.size.width）;

任何帮助或指导将不胜感激!!谢谢！

Answer 1

ObjC：

MKCoordinateRegion myRegion = MKCoordinateRegionMakeWithDistance(mapView.centerCoordinate, 400, 0);
CGRect myRect = [mapView convertRegion: myRegion toRectToView: nil];
NSLog(@"width for 400m is %f", myRect.size.width);

Xamarin.iOS转换：

var myRegion = MKCoordinateRegion.FromDistance(mapView.CenterCoordinate, 400, 0);
var myRect = mapView.ConvertRegion(myRegion, null);
Console.WriteLine($"width for 400m is ${myRect.Size.Width}");