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

2024-08-08 01:38:16   219人阅读

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

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






























        

            
                
                  
                
                

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