在ARC下使用?

[theTarget performSelector:theTarget withObject:Nil];

會出現警告：performselector-may-cause-a-leak-because-its-selector-is-unknown?

解決方法：

1：添加如下宏

#define SuppressPerformSelectorLeakWarning(Stuff) \ do { \ _Pragma("clang diagnostic push") \ _Pragma("clang diagnostic ignored \"-Warc-performSelector-leaks\"") \ Stuff; \ _Pragma("clang diagnostic pop") \ } while (0)

2：使用宏

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

　　

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

轉載于:https://www.cnblogs.com/cocoajin/p/3402023.html

總結

以上是生活随笔為你收集整理的解决ARC下performselector-may-cause-a-leak-because-its-selector-is-unknown 警告的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。