iOS Programming: The Big Nerd Ranch Guide (5th Edition) (Big Nerd Ranch Guides)

iOS Programming: The Big Nerd Ranch Guide (5th Edition) (Big Nerd Ranch Guides)

Christian Keur, Aaron Hillegass

Language: English

Pages: 416

ISBN: 0134390733

Format: PDF / Kindle (mobi) / ePub

iOS Programming: The Big Nerd Ranch Guide leads you through the essential concepts, tools, and techniques for developing iOS applications. After completing this book, you will have the know-how and the confidence you need to tackle iOS projects of your own. Based on Big Nerd Ranch's popular iOS Bootcamp course and its well-tested materials and methodology, this bestselling guide teaches iOS concepts and coding in tandem. The result is instruction that is relevant and useful.


Throughout the book, the authors explain what's important and share their insights into the larger context of the iOS platform. You get a real understanding of how iOS development works, the many features that are available, and when and where to apply what you've learned.

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that the application is indeed launching and depicts the user interface that the user will interact with once the application loads. Therefore, a good launch image is a content-less screenshot of the application. For example, the Clock application’s launch image shows the four tabs along the bottom, all in the unselected state. Once the application loads, the correct tab is selected and the content becomes visible. (Keep in mind that the launch

In fahrenheitFieldEditingChanged(_:), delete your earlier nonconverting implementation and instead update the Fahrenheit value. @​I​B​A​c​t​i​o​n​ ​f​u​n​c​ ​f​a​h​r​e​n​h​e​i​t​F​i​e​l​d​E​d​i​t​i​n​g​C​h​a​n​g​e​d​(​t​e​x​t​F​i​e​l​d​:​ ​U​I​T​e​x​t​F​i​e​l​d​)​ ​{​ ​ ​ ​ ​i​f​ ​l​e​t​ ​t​e​x​t​ ​=​ ​t​e​x​t​F​i​e​l​d​.​t​e​x​t​ ​w​h​e​r​e​ ​!​t​e​x​t​.​i​s​E​m​p​t​y​ ​{​ ​ ​ ​ ​ ​ ​ ​ ​c​e​l​s​i​u​s​L​a​b​e​l​.​t​e​x​t​ ​=​ ​t​e​x​t​ ​ ​ ​ ​}​ ​ ​ ​ ​e​l​s​e​ ​{

controller. At that point, the Conversion View Controller was no longer the initial view controller for this storyboard. Let’s take a look at how this requirement works with the root level UIWindow to add the initial view controller’s view to the window hierarchy. UIWindow has a rootViewController property. When a view controller is set as the window’s rootViewController, that view controller’s view gets added to the

=​ ​s​e​g​m​e​n​t​e​d​C​o​n​t​r​o​l​.​t​r​a​i​l​i​n​g​A​n​c​h​o​r​.​c​o​n​s​t​r​a​i​n​t​E​q​u​a​l​T​o​A​n​c​h​o​r​(​v​i​e​w​.​t​r​a​i​l​i​n​g​A​n​c​h​o​r​)​ (Note that due to page size restrictions we are showing each constant’s declaration split across two lines. You should enter each declaration on a single line.) Xcode will alert you to a problem with each line you have entered. You will fix them in a moment.

is usually very frustrating if you are doing it without the help of an experienced developer. Get enough sleep. Sleepy people do not remember what they have learned. Using an eBook If you are reading this book on an eReader, we want to point out that reading the code may be tricky at times. Longer lines of code will wrap to a second line depending on your selected font size. This bothers us because we are really conscientious at Big Nerd Ranch

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