UIActionSheet & UIAlertView

UIActionSheet *actionSheet = [[UIActionSheet alloc] 

											  initWithTitle:@"您是否真的要发邮件给他?"

											  delegate:self 

											  cancelButtonTitle:@"Cancel" 

											  destructiveButtonTitle:@"Yes" 

											  otherButtonTitles:nil];

				

				[actionSheet showInView:self.view];

				[actionSheet release];

 

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex

{

	if (buttonIndex == 0) 

	{

		SendMailViewController *detailViewController = [[SendMailViewController alloc] init];

		detailViewController.emailAddress = [dict objectForKey: @"Email"];



		[[self navigationController] pushViewController:detailViewController animated:YES];

		[detailViewController release];	

	}

}

 

NSString* webPage =  [dict objectForKey: @"WebPage"];

				NSURL* url = nil;

				

				if ([webPage length] == 0 ) {

					return;

				}

				

				if( [webPage hasPrefix:@"http://"])

				{

					url = [NSURL URLWithString:webPage];

				}

				else {

					NSString* fullWebPage = [NSString stringWithFormat:@"http://%@",webPage];

					url = [NSURL URLWithString:fullWebPage];

				}

				

				if ([[UIApplication sharedApplication] canOpenURL:url]) {

					[[UIApplication sharedApplication] openURL:url];

				}

				else {

					UIAlertView* alert = [[UIAlertView alloc] initWithTitle:@"Cannot open page"

																	message:@"网址有误，或网络暂时不能访问" 

																   delegate:nil 

														  cancelButtonTitle:@"OK" 

														  otherButtonTitles:nil];

					[alert show];

					[alert release];

				}