Set the currentIndex of ListView immediately (without animation)

Dear all, I have a ListView that depending on the user interaction I need to display it starting from a current index different from “0”, but without animating it. More in details, I have one ListView displaying a list of thumbnail photos, and when the user click on one of them it’ll appear a second ListView displaying the photos at fullscreen. This second ListView has to be displayed with the current index set to the thumbnail clicked by the user, and during this setting of current index the animation should be disable. But after that, the user has the possibility to change the current index by two buttons and now the animation has to works. So, how can I disable temporarily the animation ?