iphone - 从主线程或网页线程以外的线程获取网页锁。不应从辅助线程调用 UIKit

Question

我遇到了一个错误

Obtaining the web lock from a thread other than the main thread or the web thread. UIKit should not be called from a secondary thread

代码 NSString *tokenString=[NSString stringWithFormat:@"username=%@&password=%@",[[userName.text lowercaseString] MD5],[password.text MD5]];

我正在为 MD5 使用类文件。我从MD5得到的

这个 md5 导致线程锁定我如何删除这个警告

Answer 1

当您从辅助线程调用 UIKit 时会发生这种情况...

要解决此问题，请尝试以下操作

dispatch_sync(dispatch_get_main_queue(), ^{

//Call the function from here

});

或

[self performSelectorOnMainThread:@selector(yourmethod:)withObject:obj waitUntilDone:YES]