INSSearchBar
效果:
An animating search bar.
一个带动画效果的search bar.
Originally developed for ShopNow v2. (http://www.shopnow.de)
最开始这种效果是用在ShopNow v2中的. (http://www.shopnow.de)
The search bar is designed as a standalone component that can be easily drag‘n‘dropped into any existing iOS project.
这个search bar是一个独立的组件,能非常容易的导入到你的工程当中.
For a story behind this control see http://salanki.com/insomniac/2014/06/03/the-search-bar-experiment/
The swift version can be found at https://github.com/berlininsomniac/INSSearchBar_Swift
06.03.2014 Berlin Insomniac
设计精良的地方(用属性存储状态值,根据状态值执行动画):
先判断代理存不存在,存在的话再判断代理的方法存在不存在(虽然是已经用烂的技术)
原文：http://www.cnblogs.com/YouXianMing/p/4057420.html