我如何比较viewDidLoad和viewDidAppear？ [英] How can I compare viewDidLoad to viewDidAppear?
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问题描述
如何比较 viewDidLoad 和 viewDidAppear：
为了避免对 UIViewController 生命周期，这是从大内尔德牧场iOS编程的图：
How can I compare viewDidLoad and viewDidAppear:
解决方案
The best thing to do is to implement both methods in a view controller that loads a view with subviews (easiest is from a NIB) and put a breakpoint into each method. When the app stops on each breakpoint, look at the Variables view in the debugger and see what objects have been instantiated.
To eliminate confusion about the UIViewController lifecycle, here's a diagram taken from Big Nerd Ranch iOS Programming:
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