http://facebook.github.io/rebound/
今天與大家分享一個新東西，來自facebook的彈簧效果
首先引用官方的一段話做一下解釋：
About
Rebound is a java library that models spring dynamics. Rebound spring models can be used to create animations that feel natural by introducing real world physics to your application.
Rebound 是一個彈性動態的模型java庫，它被用來創建一個符合真實世界物理現象的動畫附着在你的應用上
Rebound is not a general purpose physics library; however, spring dynamics can be used to drive a wide variety of animations. The simplicity of Rebound makes it easy to integrate and use as a building block for creating more complex components like pagers, toggles, and scrollers.
它不是一個普通意義上的物理庫，而是可以被用來產生各種動畫效果。這意味着它可以很容易的集成和使用作爲構建塊狀動畫效果，甚至更復雜的效果，例如pagers，toggles和scrollers
Rebound uses the same spring constants as Origami making it easy to convert Origami interaction mockups directly into your Android application.
反彈使用相同的彈簧常數，摺紙很容易將摺紙互動模型直接進入你的Android應用程序。