Android - 将信息窗口附加到折线

Is it possible to attach an InfoWindow (or anything like that) to a polyline in Google Map widget? Like the official Maps app from google, I'm trying to display an info window when the user draws polylines on the map. In Maps app, when you search for a direction between two places, the app adds an info window (or something like that) to each route!Is it possible to attach an InfoWindow (or anyt