ios6

I want to show images in a grid on iPhone using a UICollectionView, showing 3 images a row. For a "dead simple test" (as I thought), I've added 15 JPG images to my project, so that they'll be in my bundle and I can load them simply via [UIImage imageNamed:...]. I think I've done everything correct (setting up & registering UICollectionViewCell subclass, use of UICollectionViewDataSource Protocol methods), however, the UICollectionView behaves very weird: It shows only a few of the images in the following pattern: First line shows image 1 & 3, second line is blank, next line like the first

I've seen some other posts about iOS 6's new behaviors with Web sites saved to / launched from the home screen. On iOS 5 (and earlier), we were able to use the Javascript History function for our in-app back button. In iOS 6, however, it works if you've only been to one page in the site. But if you have more than one page that you've visited, it throws a page-not-found error. It works fine in Safari (not from the homescreen), and it works if I remove the <meta name="apple-mobile-web-app-capable" content="yes" /> tag. But then I get the ugly browser chrome that I'm trying to avoid. I've seen

I am working an app where lock option is included.My app starts with passcode screen.If I enter correct code then it navigates to next screen.If I dont use the app for long time it goes to sleep mode.When the user wants to run the app now, the passcode screen should appear and the user has to enter the code again.Is it possible?Is there any tutorial for this?Please dont mind to post the related code if you have done it.Thanks in advance. Kanan Vora Yes ofcourse it is possible. You must open the screen in a method called applicationDidBecomeActive in your Application Delegate. This method is

I'am currently working on an project where we have a tab bar controller with 4 tabs, and where each tab have an navigation controller. On each of these navigation controller there is multiple viewcontrollers pushed on it. I read a lot of post here and other places, and we have currently done the following: Subclassed UITabbarcontroller - (BOOL)shouldAutorotate { return [[[self.viewControllers objectAtIndex:self.selectedIndex]topViewController] shouldAutorotate]; } - (NSUInteger) supportedInterfaceOrientations { return [[[self.viewControllers objectAtIndex:self.selectedIndex]topViewController

I'm trying to implement a gamecenter aware app targeted to iOS 6. To give some info on the environment I'm working on mac os 10.7.5 with XCode version is 4.5.2 and xcode is running iphone and ipad simulator version 6.0. The problem is I cannot connect to gamecenter in sandbox mode neither through ipad or iphone simulator, but the same code works as desired while testing in my iphone. I followed the gamecenter programming guide in apple's developer library and I got this atm it is called from applicationDidFInishLaunching in appdelegate: - (void)authenticateLocalUser:(UIViewController *

In trying to attempt to use Apple's UIViewController containment I have encountered a problem with animating the transition between two UIViewControllers. Here is the set up... I have created a UITabBarController and within one of the tabs I have created a UIViewController as a container. This ViewController manages the transition between a UIViewController and a UINavigationController. The before view is: When the Next button is tapped the view begins it's transition with a flipFromRight transition. During the transition, the Navigation bar is in "to" view but is located 20pixels down from