Methods throughout the lifespan of a view controller

转载于 2019-06-27 00:40:27 发布 · 189 阅读

CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/davidgu/p/3807438.html

本文详细解析了UIViewController的生命周期方法，包括loadView、viewDidLoad等关键阶段，以及viewWillAppear、viewDidAppear等动画相关的回调方法，帮助开发者深入理解iOS应用视图控制器的工作流程。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

Method                                Description
loadView                              Creates or returns a view for the view controller.
viewDidLoad                       View has finished loading.
viewWillAppear:                    View is about to appear with or without animation.
viewDidAppear:                    View did appear with or without animation.
viewWillDisappear:                View is about to disappear with or without animation.
viewDidDisappear:                View did disappear with or without animation.
viewWillLayoutSubviews        View is about to lay out its subviews.
viewDidLayoutSubviews        View did lay out its subviews.
didReceiveMemoryWarning    View detected low memory conditions.

The flow for retrieving and setting up a view in a view controller