load a different nib if phone is not connected to internet - iphone

Question

I use Apple's Reachability class and it's working fine using an alert to tell the user that the connection is not available or the connection is lost. However, I want to change the alert to something more visual. I want to load a nib that tells the user no active connection is present but the nib is not loading. I also tried loading my other nibs but it also doesn't load the nib.
- (BOOL) checkNetworkStatus:(NSNotification *)notice
{
// called after network status changes
NetworkStatus internetStatus = [internetReachable currentReachabilityStatus];
switch (internetStatus)
{
case NotReachable:
{
NSLog(#"The internet is down.");
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:#"No Internet Connection" message:#"You are currently not connected to a WI-FI or cellular Data.\nPlease make sure you are connected." delegate:self cancelButtonTitle:#"Ok" otherButtonTitles:nil, nil];
[alert show];
[alert release];
//NoConnection *noConn = [[NoConnection alloc] initWithNibName:#"NoConnecton" bundle:nil];
//[self presentModalViewController:noConn animated:NO];
//[NoConnection release];
self.isConnected = NO;
return NO;
break;
}
//more cases.........
the alert part is working just fine but the part for loading the nib is not. can you tell me whats wrong here? I'm calling this function in viewWillAppear. Thanks!

Answer 1

You can do the following:
if ( ! isConnected )
{
NoConnection *noConn = [[NoConnection alloc] initWithNibName:#"NoConnecton" bundle:nil];
[self presentModalViewController:noConn animated:NO];
[NoConnection release];
}

Answer 2

The code you have presented should work, sow the problem must be somewhere else probably in the nib - linking, you might have forgot to link something to the nib file.
try this
[self.navigationController presentModalViewController:noConn animated:YES];

Answer 3

Does your nib has NoConnection as a File's Owner (I guess NoConnection is a subclass of UIViewController, check it. I'll call this NoConnectionViewController bellow because you should name it like that for no mistake) ?
Is the file's owner view property linked with the graphical view ? Check it.
Are you working without status bar at top of the window ? That could be a problem.
Are your here inside a modalViewController ? If yes, your code won't work, you must use instead :
NoConnectionViewController* nextWindow = [[NoConnectionViewController alloc] initWithNibName:#"NoConnecton" bundle:nil]; // Check your nib name here, seems to be a mistake
UINavigationController* navController = [[UINavigationController alloc] initWithRootViewController:nextWindow];
[self presentModalViewController:navController animated:YES];
[navController release];
[nextWindow release];

Answer 4

You need to use the delegate method of alert view
#pragma mark - AlertView Delegates
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if(alertView.tag == 1)
{
NoConnection *noConn = [[NoConnection alloc] initWithNibName:#"NoConnecton" bundle:nil];
[self presentModalViewController:noConn animated:NO];
[NoConnection release];
}
}
don't forget to assign tag value of alertView to 1.
and also dont forget to conforms to the UIAlertViewDelegate protocol
Happy Coding :)