Xamarin-GoogleMap类移至特定位置 [英] Xamarin - GoogleMap class move to specific location

问题描述

在Xamarin的内置Map类中，您可以使用Map.MoveToRegion(New Position(latitude, longitude))函数转到地图上的某个区域.我正在使用GoogleMap nuget包，似乎无法找到类似的内置函数. GoogleMap插件是否具有此功能，如果有的话，它是什么?

In Xamarin's inbuilt Map class, you can use the Map.MoveToRegion(New Position(latitude, longitude)) function to go to an area on the map. I am using the GoogleMap nuget package, and can't seem to find a similar in built function. Is there a function for this with the GoogleMap plugin, and if so, what is it?

GoogleMap gMap = new GoogleMap();
//gMap.MoveToRegion(New Position(34.9820, 138.5160)); <-- something like this

推荐答案

要移动区域，请使用以下代码，其中

To move the region use below code where

gMap.MoveToRegion(MapSpan.FromCenterAndRadius(new Position(Latitude, Longitude), Xamarin.Forms.GoogleMaps.Distance.FromMiles(5)));

并使用moveCamera将两个点拟合到边界(电话屏幕)

and use moveCamera to fit two points to bounds(phone screen)

var bounds = Xamarin.Forms.GoogleMaps.Bounds.FromPositions(gMap.Polylines.SelectMany(poly => poly.Positions));
                    var newBoundsArea = CameraUpdateFactory.NewBounds(bounds, 5);
                    await gMap.MoveCamera(newBoundsArea); 

填充5的地方.

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