NSArray does not guarantee that you can only store one copy of a given object, so you have to make sure that you handle that yourself (or use NSOrderedSet). That said, there are a couple approaches here. If your category objects implement isEqual: to match category_title, then you can just


you want to hide Status Bar in your app , Follow this steps : Step 1 : Step 2: Add to your appDelegate didFinishLaunchingWithOptions function application.statusBarHidden = YES; so : - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { application.statusBarHidden = YES; } Step 3: if statusBar is not hidden ,then - (BOOL)prefersStatusBarHidden


Turn off ARC for this project. This is done by setting 'Objective-C Automatic Reference Counting' to NO in the 'Build Settings' tab of your target in the project page


POD Install [ 1 ] Open terminal and type: sudo gem install cocoapods   [ 2 ] After installation, there will be a lot of messages, read them and if no error found, it means cocoapods installation is done. Next, you need to setup the cocoapods master repo. Type in


  Proper workflow here: 1.Install deintegrate and clean: $ gem install cocoapods-deintegrate $ gem install cocoapods-clean 2.Run deintegrate in the folder of the project: cd (path of the project) //Remove the braces after cd $ pod deintegrate 3.Clean: $ pod clean 4.Modify your podfile (delete the lines with the pods

Arrays can take any class. A common class to place into an array is a custom class for your model. For example , you might have a class to keep track of cookies //Using arrays in a model class class Cookie{ var name = "" var price = 0.00 var rating


    Intel or AMD Computers by any of the desktop virtualization software  VirtualBox? Then this post will be helpful to increase screen resolution size of  Virtual Machine to get full screen. Adjusting screen size including wide screen on VMware is easy since VMware tools ( Not official, with VGA driver)