ios - 如何在成功连接 NSURL 后关闭警报 View

Question

我有一个带有 UIActivityIndi​​catorView 的 UIAlertView。

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];

如何通过以下方法消除此警报:我可以使用警报标签来消除吗？。我的警报 View 中没有包含任何按钮。

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

Answer 1

您应该将其分配给当前类的 ivar 或属性，而不是作为局部变量，然后在 connectionDidFinishLoading: 处理程序中调用 dismissWithClickedButtonIndex:animated:。