How to Fade In and Fade Out animation based on user sliding or user dragging ?
For example, this app called Quizlet. User can drag card and the further the card is the more clearer the changes of color of the card's border
*Of course at this Quizlet app it can differentiate the color based on the direction of the drag, but thats for another question. Well I appreciate it if someone want to explain it here.
*sorry for the low quality, imgur restriction
Thanks for the help.
