黄色警告的解决办法

在ARC项目中使用 performSelector: withObject: 函数出现“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

#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]
);

原博客地址：http://blog.sina.com.cn/s/blog_7dc11a2e0101gsk0.html