我在 [alert show] 行上收到 EXC_BAD_ACCESS。
为什么我会得到这个?
alert = [[UIAlertView alloc]initWithTitle:@"Application Alert" message:@"all date popup" delegate:self cancelButtonTitle:nil otherButtonTitles:@"Update",nil];
[alert show]; //EXC_BAD_ACCESS on this line