ViewDidLoad在AppDelegate didFinishLaunchingWithOptions被执行之前运行！ [英] ViewDidLoad runs before AppDelegate didFinishLaunchingWithOptions gets executed!

问题描述

我遇到一个奇怪的问题，方法ViewDidLoad在AppDelegate的didFinishLaunchingWithOptions执行之前运行！
因为我只检查数据库是否存在于didFinishLaunchingWithOptions中，如果数据库不存在，我的应用程序崩溃。在戳了几个小时后，我厌倦了这样做，并呼吁HEEEEELP！
如果你愿意的话可以这么善良，指出我的方案有可能是错误的，我的项目。我不能弄清楚（aaarggh！）

i am experiencing a strange problem where the Method "ViewDidLoad" runs before the AppDelegate's didFinishLaunchingWithOptions gets executed! Cause I only check if a database exists in "didFinishLaunchingWithOptions" my app crashes if the database isnt there. after poking around for a couple of hours I am tired of doing so and call for HEEEEELP! If you please could be so kind and point me into the right direction what's likely to be wrong with my project. I cant figure it out (aaarggh!)

谢谢！

最好的问候
汤姆

Best regards Tom

推荐答案

viewDidLoad可能在从NIB加载的ViewController上运行，因为这些在调用didFinishLaunchingWithOptions之前被加载：

viewDidLoad may run on ViewControllers loaded from NIBs as these are loaded before the call to didFinishLaunchingWithOptions:

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