-convertPoint:toCoordinateFromView:适用于iOS的Google Maps SDK的方法 [英] -convertPoint:toCoordinateFromView: method for Google Maps SDK for iOS

问题描述

如何实现MapKit方法

How do I implement the MapKit method

[googleMapView convertPoint:nePoint toCoordinateFromView:pinView];

在iOS版Google Maps SDK中?

in Google Maps SDK for iOS?

推荐答案

您可以使用以下内容:

GMSMapView* mapView = ...;
CGPoint point = ...;
...
CLLocationCoordinate2D coordinate = 
    [mapView.projection coordinateForPoint: point];

在这种情况下，point应该相对于地图视图.

In this case point should be relative to the map view.

如果您有一个相对于另一个视图的点(例如，在您的情况下为pinView)，则需要先将其转换为相对于地图视图的点.您可以执行以下操作:

If you have a point relative to another view (eg pinView in your case), you'd need to convert that into a point relative to the map view first. You could do that with the following:

UIView* pinView = ...;
CGPoint pinViewPoint = ...;
...
CGPoint mapViewPoint = [pinView convertPoint: pinViewPoint toView: mapView];

因此将它们组合在一起:

So combining it all together:

GMSMapView* mapView = ...;
UIView* pinView = ...;
CGPoint pinViewPoint = ...;
...
CGPoint mapViewPoint = [pinView convertPoint: pinViewPoint toView: mapView];
CLLocationCoordinate2D coordinate = 
    [mapView.projection coordinateForPoint: mapViewPoint];

这篇关于-convertPoint:toCoordinateFromView:适用于iOS的Google Maps SDK的方法的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！