[[UIApplication sharedApplication] delegate] 的简写? [英] Short hand for [[UIApplication sharedApplication] delegate]?
本文介绍了[[UIApplication sharedApplication] delegate] 的简写?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
我将全局变量存储在我的 AppDelegate 中并通过以下方式访问它们:
I stored global variables in my AppDelegate and access them by:
AppDelegate *d = [[UIApplication sharedApplication] delegate];
d.someString = ...
什么是保存一些输入的推荐方法，所以我不需要一次又一次地 AppDelegate *d = [[UIApplication sharedApplication] delegate];?谢谢！
What's the recommend way to save some typing and so I don't need to AppDelegate *d = [[UIApplication sharedApplication] delegate]; again and again? Thanks!
推荐答案
正如Shaggy Frog所说，在YourAppDelegate.h文件中定义一个宏，示例如下:
As Shaggy Frog said, define a macro in your YourAppDelegate.h file, an example like this:
#define AppDelegate (YourAppDelegate *)[[UIApplication sharedApplication] delegate]
然后您可以像这样在代码中获取应用委托:
Then you can get the app delegate in your code like this:
[AppDelegate ......];
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