WWDC15 Session笔记 - iOS 9 多任务分屏要点

本文是我的 WWDC15 笔记中的一篇，涉及的 Session 有 Getting Started with Multitasking on iPad in iOS 9 Multitasking Essentials for Media-Based Apps on iPad in iOS 9 Optimizing Your App for Multitasking on iPad in iOS 9

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