将位置标记为“breadcrumbs”/创建路线 - Google Maps API v3.exp

I'm creating an ios app to scout locations "on the go" and mark the locations one by one by clicking a button, and dropping a marker based on current location. I then want to be able to connect the dots, as it were, and create a trail that traverses them all. I can drop a marker at my location, and I can tap a bunch of markers onto the map, but I'm having trouble bridging the two. Any tips?I'm creating an ios app to scout locations "on