android - 沿着谷歌地图路线寻找兴趣点？ (安卓)

Question

doing "points of interest along a route" in google maps这完全符合我的问题......但它不适合 android Activity :/

所以我现在开始复制问题...等一下 :D...aargh!完成!

I need to allow travelers to use google maps to plot a route, and then query my database of points of interest (let's say, McDonald's locations) and then show all of these locations that are within a mile or two of the route they will be taking. The question is, how do I efficiently take the "driving directions" information that comes back from google (essentially an array of lat/long pairs), and turn that into an sql query to get locations that fall within a certain distance from the route? ...and then put the whole thing into my android app?

我不明白:(

Answer 1

要事第一:

1) 您的数据库中是否有 latlng(地理位置)变量类型？

如果答案 (1) == 是: 计算并查询您的数据库:D²=(Xb-Xa)²+(Yb-Ya)² 沿您的每个 Xa,Ya 路线点发现 Distance = D 内的兴趣点 (Ya,Yb)。