Hi all, I am a junior android dev, I have a question, please help me. I have a Gridview, include hundred of items (thumbnail images). I set a multi-select mode, in this mode, user just need to swipe his finger to start selecting multiple items (this case, gridview can not be scrolled). And in a normal touch, Gridview still can vertically scroll for user to see other thumbnails and continue selecting. There is an ambiguity between 2 types of vertical action, can you help me? Many thanks.