UIAlertController如何在obj c中添加标记值

Question

用于UIAlertView

- (void) alertStatus:(NSString *)msg :(NSString *)title :(int) tag
{
    UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:title
                                                        message:msg
                                                       delegate:self
                                              cancelButtonTitle:@"OK"
                                              otherButtonTitles:nil, nil];
    alertView.tag = tag;
    [alertView show];
}

但现在UIAlertView被弃用了.改变我的代码

 UIAlertController *alertController = [UIAlertController alertControllerWithTitle:title message:msg preferredStyle:UIAlertControllerStyleAlert];
    UIAlertAction* MyAlert = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:nil];
    [alertController addAction:MyAlert];
   [self presentViewController:alertController animated:YES completion:nil];

这里如何传递这个标签值

alertView.tag = tag;

帮助如何在UIAlertController中传递标记值.谢谢你.

Answer 1

UIAlertController是的UIViewController,所以我们需要为视图分配标签,所以我们需要使用alertController.view.tag.

UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"sds" message:@"sdf" preferredStyle:UIAlertControllerStyleAlert];
alertController.view.tag = tag;
UIAlertAction* MyAlert = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:nil];
[alertController addAction:MyAlert];
[self presentViewController:alertController animated:YES completion:nil];

更新

UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"sds" message:@"sdf" preferredStyle:UIAlertControllerStyleAlert];
alertController.view.tag = 3;
UIAlertAction* MyAlert = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action)
                          {
                              // OK button tappped.
                              [self dismissViewControllerAnimated:YES completion:^{

                              }];

                          }];
[alertController addAction:MyAlert];
[self presentViewController:alertController animated:YES completion:nil];