UIApplication sharedApplication实例与didFinishLaunchingWithOptions中给出的实例相同？

Question

didFinishLaunchingWithOptions中给出的 UIApplication 实例是否与 [UIApplication sharedApplication]

相同

Answer 1

是的，它们是相同的，因为UIApplication是单身人士;消息[UIApplication sharedApplication]返回该单例对象，didFinishLaunchingWithOptions也是如此。