I found myself needing a quick way to show a simple web page in my apps. I created this custom UIAlertView to do just that. Code after the jump.

@interface WebAlert : UIAlertView 
{
	@private
	UIWebView *alertWeb;
	UIActivityIndicatorView *activityIndicator;
}
 
- (void) loadURL:(NSString *) url;
 
@end
#import "WebAlert.h"
 
@implementation WebAlert
 
- (void) loadURL:(NSString *) url
{
	alertWeb.hidden = YES;
	[alertWeb loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:url]]];
}
 
- (id)initWithFrame:(CGRect)frame
{
    if ((self = [super initWithFrame:frame]))
	{
        alertWeb = [[[UIWebView alloc] initWithFrame:CGRectZero] retain];
		alertWeb.delegate = self;
		[self addSubview:alertWeb];
    }
 
    return self;
}
 
// UIWebView Delegate 
 
- (void) webViewDidStartLoad:(UIWebView *) webView
{
	if(activityIndicator == nil)
	{
		activityIndicator = [[[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite] retain];
		[self addSubview:activityIndicator];
	}
 
	[activityIndicator startAnimating];
}
 
- (void)webViewDidFinishLoad:(UIWebView *)webView
{
	[activityIndicator stopAnimating];
 
	[self performSelector:@selector(showAboutWebView) withObject:nil afterDelay:.2];
}
 
- (void) showAboutWebView
{
	alertWeb.hidden = NO;
}
 
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
    if (navigationType == UIWebViewNavigationTypeLinkClicked)
	{
        [[UIApplication sharedApplication] openURL:request.URL];
        return false;
    }
 
    return true;
}
 
- (void)setFrame:(CGRect)rect
{
	[super setFrame:CGRectMake(0, 0, rect.size.width, 275)];
	self.center = CGPointMake(480/2, 320/2);
}
 
- (void)layoutSubviews
{
	CGRect buttonFrame = CGRectMake(0, 0, 0, 0);
 
	for (UIView *view in self.subviews)
	{                 
		if ([[[view class] description] isEqualToString:@"UIThreePartButton"])
		{                         
			view.frame = CGRectMake(view.frame.origin.x, self.bounds.size.height - view.frame.size.height - 12, view.frame.size.width, view.frame.size.height);
			if(buttonFrame.size.width == 0) buttonFrame = view.frame;
		}
	}
 
	int webHeight = 160;
 
	alertWeb.frame = CGRectMake(buttonFrame.origin.x+1, buttonFrame.origin.y - (webHeight + 10), 260, webHeight);
 
	float activeX = (alertWeb.frame.origin.x + (alertWeb.frame.size.width/2)) - (activityIndicator.frame.size.width/2);
	float activeY = (alertWeb.frame.origin.y + (alertWeb.frame.size.height/2)) - (activityIndicator.frame.size.height/2);
 
	activityIndicator.frame = CGRectMake(activeX, activeY, activityIndicator.frame.size.width, activityIndicator.frame.size.height);
}
 
- (void) dealloc
{
	[activityIndicator release];
 
	alertWeb.delegate = nil;
	[alertWeb stopLoading];
	[alertWeb release];
 
	[super dealloc];
}
 
@end