本文介绍了如何将UIApplication子类化？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
iPhone Reference Libary - UIApplication说我可以继承UIApplication，但如果我尝试这个，我会得到一个例外：
The iPhone Reference Libary - UIApplication says I can subclass UIApplication, but if I try this I will get an exception:
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'There can only be one UIApplication instance.'
这让我想起了Highlander只有一个，。： - ）
This reminds me of the Highlander "There can be only one,. :-)
我是否必须将其他争论传递给UIApplicationMain？或者我是否错过了在libary中有什么东西？
Do I have to pass other argurments to UIApplicationMain? Or did I missread somthing in the libary?
推荐答案
您是否已将子类的名称传递给UIApplicationMain？我们假设您已经
Did you pass the name of your subclass to UIApplicationMain? Let's assume you have
@interface MyUIApp : UIApplication
...
然后在main（）中你应该这样做：
then in main() you should do:
NSString* appClass = @"MyUIApp";
NSString* delegateClass = nil;
int retVal = UIApplicationMain(argc, argv, appClass, delegateClass);
这篇关于如何将UIApplication子类化？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！