Creating a floating, editable and scrollable list in Android

I want to show a list of items when the user clicks an overlay item on a map. The user should be able to select any of these items and edit them. The list can have many items (开发者_如何学JAVAmore than that can fit in one active screen) therefore it needs to be scrollable.

You could do it with an activity with a transparent background, then launch that activity on top. From there you can make the list editable, by using a custom list adapter & updating the data contained within the adapter.