android - Android 地图视图问题

Question

我有一个跟踪用户地理点的应用程序。我只是获取这些点并使用它们在地图视图上绘制路径。

   My issue is, when I see the path tracked by user, the path seems to be correctly plotted but, when I have a first look over the map,it does not show me an entire zoomed out view of the map where I can see all the track path. Instead the map begins with from where I started tracking and then I need to scroll all my way to see the further tracks.

请帮忙。：） 提前致谢。

Answer 1

使用MapController.zoomToSpan(...)，您可以从 ItemizedOverlay 方法getLatSpan(int)和getLonSpan(int)中获取跨度。zoomToSpan(...) 是一种尽力而为的方法，并不保证所有点都可见。