这里现在正在研究如何最好地实时绘制路径。获取坐标并提前绘制等等..
素材是网络上的。但我无法理解以下内容。 有很多继承Overlay然后实现draw()方法并绘制的例子。但这是一次性的，我需要不断地画。
收到起始位置，到达结束位置已更改为其原始位置等等。 怎么办？
示例。
Drawing a line/path on Google Maps How can I parse out points and draw a route on a Google Map in Android?
谢谢。
最佳答案
首先，从您的标签中，您指向 Google Maps API V2，而您指向的链接 发布适用于 Google Maps API V1。也就是说，这意味着您没有可以使用的 Overlay 对象，并且 GeoPoint 也不是您应该用来显示方向位置的对象。
在 Google map API V2 中，您可以添加/删除折线来向您显示方向。 这些折线将连接 LatLng 点。
现在，您可以使用 Google Direction API 来查找路线。 以下是关于如何查找路线并在 Google Map API V2 上显示路线的帖子:
Draw driving route between 2 GeoPoints on GoogleMap SupportMapFragment
现在，您将如何实现位置更新和所需的目的地更新取决于您:
需要考虑的重要事项: Google Maps API 服务条款未正式允许使用 Google Maps API 获取行车路线:
Google Maps/Google Earth APIs Terms of Service
Last updated: May 27, 2009
...
10. License Restrictions. Except as expressly permitted under the Terms, or unless you
have received prior written authorization from Google (or, as applicable, from the
provider of particular Content), Google's licenses above are subject to your adherence
to all of the restrictions below. Except as explicitly permitted in Section 7 or the
Maps APIs Documentation, you must not (nor may you permit anyone else to):
...
10.9 use the Service or Content with any products, systems, or applications for or in
connection with:
(a) real time navigation or route guidance, including but not limited to turn-by-turn
route guidance that is synchronized to the position of a user's sensor-enabled device;
and may be disabled for certain apps (somehow, at least on Android)... FromGeocode
scraping in .NET conversation:
This is not allowed by the API terms of use. You should not scrape Google Maps to
generate geocodes. We will block services that do automated queries of our servers.
Bret Taylor
Product Manager, Google Maps
关于android - 谷歌地图 v2 实时路线？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/14873491/