解决ARC下performselector-may-cause-a-leak-because-its-selector-is-unknown警告

在ARC下使用 

1	[theTarget performSelector:theTarget withObject:Nil];

会出现警告：performselector-may-cause-a-leak-because-its-selector-is-unknown 

解决方法：

1：添加如下宏

1	#define SuppressPerformSelectorLeakWarning(Stuff) \

2

do { \

3	_Pragma("clang diagnostic push") \

4	_Pragma("clang diagnostic ignored \"-Warc-performSelector-leaks\"") \

5

Stuff; \

6	_Pragma("clang diagnostic pop") \

7	} while (0)

2：使用宏

1	SuppressPerformSelectorLeakWarning([theTarget performSelector:theAction withObject:@"hello"]);

　　

参考：http://stackoverflow.com/questions/7017281/performselector-may-cause-a-leak-because-its-selector-is-unknown