NSRunLoop

RunLoop的应用场景（一）保证线程长久存活

https://juejin.im/post/6844903878291374088

RunLoop的应用场景（二）让Timer正常运转

https://juejin.im/post/6844903878295552013

RunLoop的应用场景（三）滚动视图流畅性优化

https://juejin.im/post/6844903878299746318

RunLoop的应用场景（四）App卡顿监测

https://juejin.im/post/6844903878303940615

RunLoop基础知识

https://juejin.im/post/6844903878303940622

RunLoop 与GCD 、Autorelease Pool之间的关系

https://juejin.im/post/6844903878308134925