如何在成功的NSURL连接后关闭警报视图

Question

我有一个UIAlertView和UIActivityIndicatorView。

UIAlertView *alertView_Spinning = 
   [[UIAlertView alloc] initWithTitle:@"Please wait" 
                              message:@"Connecting to server" 
                             delegate:nil 
                    cancelButtonTitle:nil 
                    otherButtonTitles: nil];
alertView_Spinning.tag=0;

UIActivityIndicatorView *indicator = 
  [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
[indicator startAnimating];

[alertView_Spinning setValue:indicator forKey:@"accessoryView"];
[alertView_Spinning show];

如何从下面的方法中排除此警报:是否可以使用警报标记来解职？我不包括任何按钮在我的警觉视图。

- (void)connectionDidFinishLoading:(NSURLConnection *)connection{
    //dismiss alert view here
}

Answer 1

应该将其赋值给当前类的ivar或属性，而不是作为局部变量，然后在connectionDidFinishLoading:处理程序中调用connectionDidFinishLoading:。