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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
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原文地址:http://www.cnblogs.com/siasyl/p/5053229.html