如何为iOS创建类似于Google Maps的用户卡动画

Question

In the new google maps for iOS when you search for a place, it has a card on the bottom that you can drag/animate up and down. I am trying to replicate this by using a UIPanGestureRecognizer on a UIViewController's view, however when I flick up I wanted it to animate smoothly like it does on Google Maps. How can achieve this effect? When I tap and hold on it works just fine.

Answer 1

Calculate the speed that you want it to move at (possibly the speed of the flick, possibly less if that is too fast), then use animateWithDuration:animations: to animate the view to its final position. Set the duration such that it moves at the speed you want it to move.