Question

i want to show an UIAlertView while the LoginProcess is working OR after the loginButton action is called. Here is my code:

- (void) btnLogin:(id) sender {

    UIAlertView *alertLogin = [[UIAlertView alloc] initWithTitle:nil message:@"\nLogin in progress, please wait!" delegate:self cancelButtonTitle:nil otherButtonTitles:nil];
    [alertLogin show];

    NSURL *url = [NSURL URLWithString:@"http://www.example.com/login/"];

    ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];

    [request setPostValue:username forKey:@"username"];
    [request setPostValue:password forKey:@"pw"];

    [request startSynchronous];
    [request cancelAuthentication];

    [...]
}

1. i press the login button.
2. the screen gets an gray radial overlay

3. the loginprogress is done AND NOW the UIAlertView appears very very shortly.

I want to display the UIView WHILE the login is in progress and not after.
I cant find out why this appears after the progress.
Need help.
Thanks a lot for any suggestions.

Answer 1

In .h of your class

UIAlertView *alert;

In .m btnLogin Method

    alert = [[[UIAlertView alloc] initWithTitle:@"Login in progress\nPlease Wait..." message:nil delegate:self cancelButtonTitle:nil otherButtonTitles: nil] autorelease];

[alert show];

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

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

In didRecieveData Method of connection, you will write, or if you are parsing, then didEndDocument method of parser, you can do

[alert dismissWithClickedButtonIndex:0 animated:YES];