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Automatic Reference Counting
3VideosAutomatic Reference Counting is an exciting new addition to iOS 5 that makes manual reference counting obsolete. It is a compiler level feature that removes all the hassle out of memory management and makes iOS development easier.
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Storyboards
6VideosA storyboard is a visual representation of the user interface for an iOS application. A storyboard is composed of a sequence of scenes, each of which is represented by a view controller and its views. Scenes are connected by a segue, which represents the transition between two view controllers.
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Web View
4VideosThe UIWebView class uses the WebKit rendering engine to embed web content in an application. It can also display documents such as: PDF, Excel, Keynote, Numbers, etc. It supports browser navigation such as moving forward and back in the history stack and intercept browser events.
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Core Data
6VideosCore Data is not a database, it is a framework that helps in managing and persisting the object graph. It provides additional features such as schema migration, change tracking, relationship maintenance, validation, querying and more.
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Notifications
3VideosA notification is an iOS design pattern that broadcasts messages to observing objects. The centerpiece of the notification mechanism is a singleton object known as the notification center. When an object posts a notification, it goes to the notification center, which acts as a kind of clearing house and broadcast center for notifications. Objects that need to know about an event elsewhere in the application register with the notification center to let it know they want to be notified when that event happens.
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Appearance
4VideosiOS 5 has new capabilities to help customize the appearance of UIKit views and controls giving your application a unique look and feel. In addition, the appearance proxy helps you consolidate customization while providing a consistent look and feel.
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App Settings
5VideosEvery app needs to provide the user with settings to customize its appearance or functionality. In iOS the easiest way to provide these preferences are via the settings app which involve knowing: property lists, user defaults and settings bundle. The user defaults and property lists are key-value stores designed for storing simple data types such as: strings, numbers, dates, Boolean values, data objects and more.
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Blocks and Categories
3VideosA category is used to define additional methods of an existing class without subclassing. Blocks are simply a block of executable code that have access to local variables and can be stored or passed around.
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Learn fundamentals such as: Core Data, Web View, Notifications and App Preferences using the latest version of Xcode and iOS. You will also learn some features that are new with iOS 5 and fundamental to app development such as: Automatic Reference Counting (ARC), storyboards, and appearance.
