Q:

Google Maps v2: launch custom infowindow without using a marker

My question is regarding the java way of achieving this: Google Maps infoWindow without marker?
Is it possible to launch a custom info window in v2 without using a marker? Which event should I use to detect a long press on the map and how can I launch an InfoWindow?
Here is what I want to achieve.

I need to be able to get the location from the place, so I can add the marker to that position, whenever an icon from the custom view is selected.

A:

Is it possible to launch a custom info window in v2 without using a
  marker?

It isn't, but you can create a transparent marker and show the InfoWindow on it.
To make it transparent, use a transparent resource or use marker.setAlpha(0.0f).

Which event should I use to detect a long press on the map?

You can use the method GoogleMap.setOnMapLongClickListener().

How can I launch an InfoWindow?

You have to add a Marker and call showInfoWindow() method on it.

