iOS疯狂详解之warning:performSelector may cause a leak because its selector is unknown

主要是警告信息，在非ARC项目中没有这个警告。如果是在某一处修改只需要加入下列代码：

#pragma clang diagnostic push

#pragma clang diagnostic ignored "-Warc-performSelector-leaks"

    [self.ticketTarget performSelector: self.ticketAction withObject: self];//此处是你调用函数的地方

#pragma clang diagnostic pop

如果在程序中多处使用，可以写一个宏定义，如下：

#define SuppressPerformSelectorLeakWarning(Stuff) \

    do { \

        _Pragma("clang diagnostic push") \

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

        Stuff; \

        _Pragma("clang diagnostic pop") \

    } while (0)

如果没有返回结果，可以直接按如下方式调用：

SuppressPerformSelectorLeakWarning(

    [_target performSelector:_action withObject:self]

);

如果要返回结果，可以按如下方式调用:

id result;

SuppressPerformSelectorLeakWarning(

    result = [_target performSelector:_action withObject:self]

);

更多iOS疯狂详解:http://blog.csdn.net/wanglongblog