setCurrentItem does not adjust the thumbnails

[MaAllma]

I want to start my Image Gallery by clicking on a specific photo. For this I use the setCurrentItem method. This works perfect for the main image, but the thumbnails still start with the first image and not the selected one. Is there an interface for this that I've overseen, or can setCurrentItem be changed so that the thumbnails are also adjusted in it? ( scroll(thumbnailsContainer.getChildAt(i)) ) thanks :)