iOS 6中的UIAlertView崩溃

Question

我有这个代码:

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title message:msg delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
[alert show];
[alert release];

问题是这个代码在显示警报之前崩溃了,我已经在较低的iOS上测试了它并且它可以工作但是在iOS 6上崩溃了.

Answer 1

我找到了答案.我编码:

[alert performSelectorOnMainThread:@selector(show) withObject:nil waitUntilDone:YES];

代替

[alert show];

它崩溃,因为可能没有在主线程中执行该进程.

来自:https: //stackoverflow.com/a/12475858/1179680