根据用户移动android googleMaps v2更新折线 [英] update polyline according to the user moving android googleMaps v2

问题描述

我在googleMap（v2）中使用了折线，它在用户当前位置和目的地点之间呈现路线。
现在，我想根据用户移动来更新折线。


当位置改变但多段线闪烁时，我试图重绘整个多段线。


我在PolylineOptions类中找不到任何适当的函数（函数add（）仅用于添加顶点但不能更新或删除）


你有什么想法如何更新多义线吗？

感谢您给予您的时间。

I have googleMap (v2) with polyline that presents a route between the user current location and the destination point.
Now, I want to update the polyline according to the user moving.

I tried to redrawing the whole polyline when location is changed but the polyline is flickering.

I didn't find any appropriate function in the PolylineOptions class
(the function add() is only to add a vertex but not to update or remove)

do you have any idea how to update the polyline ???
thank you for giving your time.

推荐答案

List<LatLng> points = polyline.getPoints();
points.add(newPoint);
polyline.setPoints(points);

希望API能够在后续版本中得到增强。

Hopefully the API will be enhanced in later versions.

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