The code to load the sending view (from the main app delegate) was:

- (IBAction)sendContact:(id)sender
{
	DataController* dc = [DataController sharedInstance];
	dc.contactRecord = (NSMutableDictionary*) [self.userDefaults dictionaryForKey:@"currentUser"];

	SendingViewController *sendingViewController = [[SendingViewController alloc] initWithNibName:@"ReceiverView" bundle:nil];
	[self setBackButtonText:@"Back"];
	[self.navigationController pushViewController:sendingViewController animated:YES];
	[sendingViewController release];
}

The code for the receiving view was:

- (IBAction)receiveContact:(id)sender
{
	ReceivingViewController *receiverViewController = [[ReceivingViewController alloc] initWithNibName:@"ReceivingView" bundle:nil];
	[self setBackButtonText:@"Back"];
	[self.navigationController pushViewController:receiverViewController animated:YES];
	[receiverViewController release];
}

On load, I could _swear_ that nothing happend with the DataController’s contact record. But something screwy was going on. When I hit “send” first (on app launch), hitting “receive” worked fine (you could navigate back with no worries at all). However, when you hit “receive” first, going back only got the navigation bar to change, while the receive view was still visible.

It took ages, but setting contactRecord in the DataController shared instance fixed the problem.

The thing is, the view loaded just fine, no worries at all. No errors or warnings occured… and I wasn’t using contactRecord for anything on the view. So why did it behave like it encountered an error? I searched the code, and I was setting a label (which didn’t even exist on-screen anymore, it was an unused IBOutlet UILabel) to something contained in the DataController. Why it didn’t error properly, and why that stopped the view from unloading properly is completely beyond me… The NavigationBar operates (somewhat) in isolation from the views inside it, so if a view gets stuck (but not the Nav control) you can find yourself in a very weird situation.

So, my advice to you is:

• It ain’t the same until it’s _exactly_ the same.
• Just because it doesn’t error, doesn’t mean it hasn’t produced an error.
• If you can at all avoid it, don’t copy paste entire files. Best to start empty and include the stuff you need instead.

Symptoms are pretty simple to diagnose – you start MAMP, and it’s control panel pops up and shows that everything is running:

But for some reason you can’t access your webserver or database:

What to do?  Restarting the servers generally doesn’t solve the problem.  However, there is a trick I’ve discovered.  Open up the control panel and click the “Preferences…” button.  Once this popups up, choose the “Ports” tab, change nothing – and click OK:

MAMP will automatically restart – and you should be up and running!

New announcements include:

New Device – iPhone 3G S – 2x faster iPhone with new hardware features including:

• 3-mega pixel camera
  • “Touch” focus technology – touch a part of the screen to auto focus
  • Auto focus
  • Auto white balance
  • Auto low light adjustment
  • Auto macro support (10cm distance)
• Built-in compass support
  • Compass app showing your bearing from true north, magnetic north
  • Maps app support – double tab location to rotate map and show relative to your currently location
• Video Recording Support
  • Video editing – easily slice up recorded video with preview of timeline
  • Video sharing – one touch sharing via MMS/YouTube/Email/MobileMe
• Voice support
  • Depress home button for 1 second from any app to activate
  • Voice dial contacts from address book
  • Voice activate songs from artists/playlists
• Nike+ Support
• Faster processsor – at least 2x faster than previous iPhone 3G
• $199 for iPhone 3G S
• $99 for iPhone 3G (US Pricing)
• On Sale June 19
  

Existing Announcements Clarified:

• iPhone 3.0 software released to general public 15th June, 2009
• WWDC Developers given access today (8th June, 2009)

As you navigate throughout the park, you receive instructions from a character called ‘Trutton’ and learn that the park is in trouble.  Your challenge is to help Trutton save the park before its too late by navigating the park, solving puzzles and interacting with characters throughout.  The game provides a beautifully illustrated map of the park, with your location being represented by an Avatar, who moves as you move around the map.

Gameplay takes about an hour to complete, making the game an ideal day out for families, and provides a perfect opportunity to get the kids off the couch and out exploring a magical world in their local park.  Currently the Hidden Park supports the following locations:

• Melbourne Botanical Gardens, Australia
• Sydney Botanical Gardens, Australia
• High Park, Toronto, Canada
• Boston Common, Boston, USA
• Central Park, New York, USA
• Kensington Gardens, London, UK
• Tokyo Ueno Park, Tokyo, Japan
• Englischer Garten, Munich, Germany
• Zoological and Botanical Gardens, Hong Kong

The Hidden Park is available on the App Store for $6.99 and comes highly recommended.

More information is available at TheHiddenPark.com.

They are also into working out how much time you save by using their device – which they use as a global tally to show how much time the world is saving by removing the need to untangle headphones.

This is a really novel idea and a cool device.  Head over to BudTrap.com now to start saving your tangle time.

Finally, WSP Online has released League 2009 – NRL.  This provides the same beautiful interface as their successful Footy 2009 app, along with live coverage of the NRL season including:

• Live Scores for all games in the 2009 NRL season
• News – with the fully article viewable inside the App, fully licensed by the ABC
• Fixture – full fixture with game time and venue
• Ladder – ladder is updated live after each game

See screen shots below:

It sells for $3.99 in the App Store and is well worth the purchase price.

svn switch --relocate http://oldserver.com/PROJECT 
                      http://newserver.com/PROJECT

This will recursively modify all the .svn folders contents so they point to the correct location.

So what to do?  Simple, implement the following CLLocationManager delegate method:

- (void)locationManager:(CLLocationManager *)manager
       didFailWithError:(NSError *)error

Inside this method, make sure you deal with not receiving any GPS locations in a sensible manner (show a popup, skip etc).

Then you get a message from the Application Loader:

Application failed codesign verification.

What the??  If you check the activity log you also see the following:

A sealed resource is missing or invalid

After countless hours trawling Google and finding nothing, I worked out that I needed to do two things:

1. Remove all files from the project that started with ._ (dot then underscore).  See my previous post for more, however you just open the terminal and run find . -name “._*” -print0 | xargs -0 rm -rf from the command line in the root of the project
2. Make sure that the Icon File setting in the info.plist file is empty

After making these two changes, and rebuilding my project (make sure you do a “clean all”) it submitted to Apple without problem.  I really hope that helps someone…

Open terminal and type: rm -r ~/Library/Calendars/

Various solutions are discussed here.