如何动态更新MapView上的内容（标记）到另一个线程？

I'm interested in the problem - how it is possible to update the content (markers) on the map when they are added to the other thread. The problem lies in the fact - that I add markers to the map in the other thread, partly to avoid slowing down the user interface, because that is necessary to create a marker to analyze the database. It seems that the program works properly - but after the markers were set up, they do not check the map. In order to display them to make interaction with the card (touch or change of scale). Here's why I want to ask - is it possible to update the contents of the map by adding a marker? Initiate a change of scale in my not a good solution. I hope for your help. I'm interested in the problem - how it is possi