adding ok button at run time in UIAlertview ios - iphone

Question

I call alert with progress indicator view while calling web services.i am having an alert view set up like this:
[self.activityIndicatorView setHidden:NO];
self.alertView = [[UIAlertView alloc] initWithTitle:#"Sending Login Request.."
message:#"\n"
delegate:self
cancelButtonTitle:nil
otherButtonTitles:nil];
self.activityIndicatorView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
self.activityIndicatorView.center = CGPointMake(139.5, 75.5); // .5 so it doesn't blur
[self.alertView addSubview:self.activityIndicatorView];
[self.activityIndicatorView startAnimating];
[self.alertView show];
Later if login fails I want to put "OK" button on alert view, withot dismissing self.alertView, and again showing new instance of self.alertView.Some thing like this:
if (isThereErrorFromJsonResp) {
[self.activityIndicatorView stopAnimating];
[self.activityIndicatorView removeFromSuperview];
self.activityIndicatorView = nil;
[self.alertView setTitle:isThereErrorFromJsonResp];
//here i want to show ok button how?
return;
}
So how should i put OK button?
Any Suggestion?

Answer 1

Remove the alert on getting the response and display an new instance of alert like this
[self.alertView dismissWithClickedButtonIndex:0 animated:YES];
self.alertView = [[UIAlertView alloc] initWithTitle:isThereErrorFromJsonResp
message:#"\n"
delegate:self
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[self.alertview show];
SOLUTION
Ok tried out and got it
Use
[alertView dismissWithClickedButtonIndex:0 animated:YES];
[alertView addButtonWithTitle:#"Ok"];
[alertView show];
This will add the button to the alertview

Answer 2

Look at using ATMHud instead - this is a heads-up-display that you can modify while its showing, and can show, start, stop, spinners, add messages etc. When I used it I had a message say "Tap to Cancel", then when the login succeeded, showed a "Success!" for a second or so, then made it disappear. This looks HUD looks very professional in the way it animates, and you have a lot of control over it too.

Answer 3

Try this code:
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"" message:#"Logout in offline mode may cause of data lose. Do you still want to logout?" delegate:self cancelButtonTitle:#"NO" otherButtonTitles:#"YES",nil];
alert.tag=11;
[alert show];
[self performSelector:#selector(go:) withObject:alert afterDelay:1.0];
-(void)go:(UIAlertView*)alert
{
UIButton *b = (UIButton*)[alert viewWithTag:1];
b.titleLabel.text = #"test";
}
you will have to add "OK" button initially. And set its property as Hidden = TRUE. and in go method set it property Hidden = FALSE