title: iOS8新增4000多个API，重要的有哪些？
desc: gt iOS 8 is the biggest release for developers since the introduction of the App Store. It opens up new areas of iOS， allowing developers to extend the reach of their app content and functionality. It includes over 4000 new APIs to enable amazing features and capabilities. And it oers bold new technologies for game development. All of which means soon youll see exciting new apps and games that let you do things youve never been able to do before.<br>Source
topic: iOS 开发
content: 大致看了一眼 What's New in iOS Introduction ，除了上面在 WWDC 开场发布会提到的那些新特性以外，还有几个比较有意思或值得注意的地方： 现在，开发者可以用苹果官方给出的方法实现实时的毛玻璃效果了（UIVisualEffect Class Reference ）。在此之前，虽然很多 App 使用了毛玻璃效果，不过都不是通过苹果官方给的方法实现的。如果希望在 iOS 上实现毛玻璃效果，只能用两种很蛋疼的办法（1. 用类似 GPUImage 这样
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