ios - 在后台触摸时关闭 UIActivityIndi​​catorView

Question

我正在从 Web 服务获取数据，在获取数据期间，我在屏幕上显示了一个 UIAcitivityIndi​​catorView。这个指标在 UIAlertView

UIAlertView *waitAlert = [[UIAlertView alloc] initWithTitle:@"Please Wait...." message:nil delegate:self cancelButtonTitle:nil otherButtonTitles: nil];

    [waitAlert show];

indicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];

// Adjust the indicator so it is up a few pixels from the bottom of the alert
indicator.center = CGPointMake(waitAlert.bounds.size.width / 2, waitAlert.bounds.size.height - 50);
[waitAlert addSubview:indicator];

NSURL *url = [NSURL URLWithString:URLString];

    NSURLRequest *urlRequest = [NSURLRequest requestWithURL:url];
    NSOperationQueue *queue = [[NSOperationQueue alloc] init];
    [NSThread detachNewThreadSelector:@selector(startAnimation) toTarget:self withObject:self.view];


    [NSURLConnection sendAsynchronousRequest:urlRequest queue:queue completionHandler:^(NSURLResponse *response, NSData *data, NSError *error)
     {
      // Data to populate the tableview
      [[NSOperationQueue mainQueue] addOperationWithBlock:^ {

             [self.tableView1 reloadData];
             //Stop the UIActivitiyIndicatorView
             [self stopLoading];

         }];
}];

当数据成功加载时，我可以成功关闭它，但如果有人在从 Web 服务加载数据期间触摸屏幕的其余部分，我想关闭 UIActivityIndi​​catorView。任何帮助将不胜感激。

Answer 1

你能试试这个吗

显示 UIAlertView 后，将 View 添加到您的 View Controller (或什至窗口)新的全屏大小的空 UIView。使用 UITapGestureRecognizer 附加到此 View

UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];
[view addGestureRecognizer:singleTap];
[singleTap release];

-(void)handleSingleTap:(UITapGestureRecognizer *)sender{
    [myAlert dismissWithClickedButtonIndex:0 animated:YES];
    [view removeFromSuperView];
}