How do I get a UIView to appear instantly?
- by matsgrip
I'm trying to create an activity indicator in iPhone app. The problem is that I cannot get it to appear before the actual task i want it to diplay during is already done. Is there something funky about the order in which the iPhone does stuff?
Here is my problematic code (in my app delegate):
-(BOOL)showProgressView: (NSString *) message {
self.progress = [[UIView alloc] initWithFrame:window.frame];
UIImageView *img = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"squircle.png"]];
[img setAlpha:0.5];
[img setFrame:CGRectMake(94, 173, 133, 133)];
UIActivityIndicatorView *spinner = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(51.5, 51.5, 30, 30)];
spinner.activityIndicatorViewStyle = UIActivityIndicatorViewStyleWhiteLarge;
[img addSubview:spinner];
[self.progress addSubview:img];
[spinner startAnimating];
[img release];
[spinner release];
[window addSubview:self.progress];
return YES;
}
I then call this code like this:
if ([appDelegate showProgressView:@"Loading..:"])
{
//My actual code loads data and stuff here but that is not important
//drawCtrl is a UIViewController subclass that is instantiated here
UINavigationController *navController = [appDelegate navigationController];
[navController pushViewController:drawCtrl animated:YES];
[drawCtrl release];
}
The problem is that my activity indicator does not appear until the new view controller is pushed onto the navController's stack. Can I control this in some way?
Thanks in advance!
-Mats
