didChangeCameraPosition获取可用坐标的边界框/矩形

本文介绍了didChangeCameraPosition获取可用坐标的边界框/矩形的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

如何从GMSCameraPosition中检索GMSCoordinateBounds？每当用户移动摄像机时，我都想知道地图上的可见坐标（至少是东北/西南点）：

（void）mapView：（GMSMapView *）mapView didChangeCameraPosition：（GMSCameraPosition *）position

解决方案

GMSVisibleRegion visibleRegion = mapView.projection.visibleRegion; GMSCoordinateBounds * bounds = [[GMSCoordinateBounds alloc] initWithRegion：visibleRegion]; //我们得到了我们想要的东西，但是这里是NE和SW点 CLLocationCoordinate2D northEast = bounds.northEast; CLLocationCoordinate2D southWest = bounds.southWest;

How can I retrieve the GMSCoordinateBounds from a GMSCameraPosition? I want to know the visible coordinates on the map (at least Northeast/Southwest points) everytime the user moves the camera as in:

(void)mapView:(GMSMapView *)mapView didChangeCameraPosition:(GMSCameraPosition *)position

解决方案

GMSVisibleRegion visibleRegion = mapView.projection.visibleRegion; GMSCoordinateBounds *bounds = [[GMSCoordinateBounds alloc] initWithRegion:visibleRegion]; // we've got what we want, but here are NE and SW points CLLocationCoordinate2D northEast = bounds.northEast; CLLocationCoordinate2D southWest = bounds.southWest;