By Neil Smyth
Now up to date with 5 new chapters devoted to Xcode Storyboards, the purpose of iPhone iOS five improvement necessities is to educate you the talents essential to construct your personal purposes for the iPhone. starting with the fundamentals, this publication offers an outline of the iPhone and the structure of iOS five. An creation to programming in Objective-C is equipped by way of an in-depth examine the layout of iPhone purposes and person interfaces. extra complicated issues akin to consumer interface structure and resizing, dossier dealing with, database administration, pics drawing and animation also are coated, as are contact monitor dealing with, gesture popularity, multitasking, iAds integration, place and map administration, digital camera entry and video playback help. New iOS five particular beneficial properties also are lined intimately together with web page view controller implementation, the UIDocument type, iCloud dependent garage, Storyboard person interface layout, computerized reference counting, Twitter integration and photo filtering with middle snapshot. iPhone iOS five improvement necessities takes a modular method of the topic of iPhone software improvement with every one bankruptcy protecting a self contained subject region. This makes the booklet either a simple to stick to studying relief and a very good reference source.
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Extra info for iPhone iOS 5 Development Essentials
16 Joining the Apple iOS Developer Program One of the key advantages of the developer program is that it permits the creation of certificates and provisioning profiles to test applications on physical devices. Although Xcode includes device simulators which allow for a significant amount of testing to be performed, there are certain areas of functionality, such as location tracking and device motion, which can only fully be tested on a physical device. Of particular significance is the fact that iCloud access can only be tested when applications are running on physical devices.
Pressing the blue info button flips the view to the configuration page. Selecting Done rotates the view back to the main screen. Single View Application – Creates a basic template for an application containing a single view and corresponding view controller. Empty Application – This most basic of templates creates only a window and a delegate. If none of the above templates match your requirements then this is the option to take. For the purposes of our simple example, we are going to use the Single View Application template so select this option from the new project window and click Next to configure some project options: 26 Creating a Simple iPhone iOS 5 App Figure 6-3 On this screen, enter a Product name for the application that is going to be created, in this case “HelloWorld” and make sure that the class prefix matches this name.
Whilst it is possible to develop user interfaces by writing code to create and position items on the screen, this is a complex and error prone process. In recognition of this, Apple provides a tool called Interface Builder which allows a user interface to be visually constructed by dragging and dropping components onto a canvas and setting properties to configure the appearance and behavior of those components. Interface Builder was originally developed some time ago for creating Mac OS X applications, but has now been updated to allow for the design of iOS app user interfaces.