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Download Learning the iOS 4 SDK for JavaScript Programmers: Create by Danny Goodman PDF

By Danny Goodman

Is it attainable for JavaScript programmers to profit Apple's iOS four SDK and live on? expertise guru Danny Goodman did, and with this booklet he leaves a well-marked path that you should persist with. an expert on JavaScript due to the fact its inception, Goodman knows the demanding situations you may face in growing local iOS apps with this SDK, and introduces Xcode, Objective-C, and Cocoa contact in a context you will comfortably understand.

Why trouble with the SDK for those who can easily construct internet apps for Apple's iOS units? internet apps cannot entry an iPhone's tune library, digital camera, or iOS method software program for maps, audio, and extra. Nor are you able to promote net apps within the App shop. to be able to take complete good thing about the iPhone and iPad, iOS four SDK is your instrument -- and this can be your e-book. comprises complete insurance of iOS SDK 4.2.

  • Learn the excellence among net app and iOS local app programming
  • Create a workbench app to check code snippets during the studying process
  • Get a structural view of an iOS app, and evaluate the method of establishing items in Objective-C as opposed to JavaScipt
  • Discover how your code launches iOS apps and makes them user-ready
  • Learn approximately iOS reminiscence administration information which are diversified from JavaScript, together with guidelines and knowledge types
  • Use Objective-C and Cocoa contact to enforce universal JavaScript tasks

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Additional info for Learning the iOS 4 SDK for JavaScript Programmers: Create Native Apps with Objective-C and Xcode

Sample text

Locate the Library palette window (or choose Library from the Tools menu if the palette isn’t visible). The Library window contains all the user interface pieces that you can lay out inside a view. To simplify finding the interface element you need, choose the Inputs & Values group from the pop-up menu, as shown in Figure 3-11. You will see a variety of user controls (buttons, text fields, and other indicators) that should be familiar to you as an iPhone user. 38 | Chapter 3: Creating a Test Workbench Figure 3-11.

It is more important to have a big editor window, and the upper-right pane’s contents aren’t that important during code creation. Therefore, drag the divider between the two right-hand panes upward so that you have only a single editor window, as shown in Figure 3-5. Editing Your First Files To display a source code file in the editor window, select the file from the Groups & Files pane. m files in a later chapter). Xcode created all of the code you see here. The file begins with several lines of comments—yes, two forward slashes is one way to signify comments, just as in JavaScript.

Xib file in the Resources group. This act launches Interface Builder (it may take a moment to get running), which then displays a few small windows for the file. 36 | Chapter 3: Creating a Test Workbench The main window representing the file is the one shown in Figure 3-9. This window, known as the document window, acts as a kind of table of contents for the user interface elements defined for this view controller. You can view the contents by icon, list, or tabular view. I prefer the list view in Figure 3-9, because it makes it easier to work with more complicated user interfaces later on.

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