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iOS Programming: The Big Nerd Ranch Guide (4th Edition) (Big Nerd Ranch Guides)

By Joe Conway, Aaron Hillegass, Christian Keur

Updated and elevated to hide iOS 7 and Xcode five, iOS Programming: the massive Nerd Ranch Guide leads you thru the basic options, instruments, and strategies for constructing iOS functions. After finishing this ebook, you've gotten the knowledge and the boldness you want to take on iOS initiatives of your individual. according to Big Nerd Ranch's well known iOS Bootcamp direction and its well-tested fabrics and technique, this bestselling consultant teaches iOS recommendations and coding in tandem. the result's guideline that's proper and useful.

in the course of the e-book, the authors clarify what is very important and proportion their insights into the bigger context of the iOS platform. You get a true figuring out of ways iOS improvement works, the numerous gains which are to be had, and whilst and the place to use what you could have learned.

listed here are many of the subject matters coated:

  • Xcode five, tools, and Storyboards
  • development interfaces utilizing the iOS 7 aesthetic
  • ARC and powerful and susceptible references
  • dealing with contact occasions and gestures
  • Toolbars, navigation controllers, and break up view controllers
  • utilizing car format to scale person interfaces
  • utilizing Dynamic style to scale fonts
  • Localization and Internationalization
  • Block syntax and use
  • Saving/loading information: Archiving and center Data
  • center place and Map Kit
  • speaking with internet companies utilizing JSON
  • utilizing the Model-View-Controller-Store layout pattern

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NameLabel. font = font; self. serialNumberLabel. font = font; self. valueLabel. font = font; static NSDictionary *imageSizeDictionary; if (! imageSizeDictionary) { imageSizeDictionary = @{ UIContentSizeCategoryExtraSmall : @40, UIContentSizeCategorySmall : @40, UIContentSizeCategoryMedium : @40, UIContentSizeCategoryLarge : @40, UIContentSizeCategoryExtraLarge : @45, UIContentSizeCategoryExtraExtraLarge : @55, UIContentSizeCategoryExtraExtraExtraLarge : @65 }; } NSString *userSize = [[UIApplication sharedApplication] preferredContentSizeCategory]; NSNumber *imageSize = imageSizeDictionary[userSize]; self.

Simply because this occurs at runtime, Xcode can't regularly determine at bring together time (when the appliance is outfitted) even if an item will reply to a message. Xcode provide you with an mistakes if it thinks you're sending a message to an item that may not reply, but when it's not definite, it's going to permit the appliance construct. If, for a few cause (and there are various possibilities), you find yourself sending a message to an item that doesn't reply, your software will throw an exception. Exceptions also are referred to as run-time blunders simply because they happen as soon as your software is operating, rather than compile-time error that appear while your software is being equipped, or compiled.

Are defined by way of issues. On a non-Retina demonstrate, some extent is 1x1 pixel. On a Retina show, some degree is 2x2 pixels (Figure 6. 19). determine 6. 19 Rendering to diversified resolutions Given those variations, bitmap photographs (like JPEG or PNG documents) might be unattractive if the picture isn't really adapted to the device’s reveal style. Say your software features a small photo of 25x25 pixels. If this picture is displayed on a Retina show, then the picture needs to be stretched to hide a space of 50x50 pixels.

Xib in es. lproj from the BNRDetailViewController. xib in en. lproj, after which change the entire strings with the values from BNRDetailViewController. strings. ” Press input. (You may possibly see a few kind of caution the place ibtool complains approximately GSCapabilities; you could forget about it. ) Open BNRDetailViewController. xib (Spanish) in Xcode. This XIB dossier is now localized to Spanish. to complete issues off, resize the label and textual content box for the serial quantity, as proven in determine 25. eleven. determine 25. eleven Spanish BNRDetailViewController.

DateCreated]; NSString *imageKey = self. merchandise. imageKey; // Get the picture for its picture key from the picture shop UIImage *imageToDisplay = [[BNRImageStore sharedStore] imageForKey:imageKey]; // Use that snapshot to place at the display within the imageView self. imageView. photograph = imageToDisplay; } If there's no picture linked to the article, then imageForKey: will go back nil. whilst the picture is nil, the UIImageView won't reveal a picture. construct and run the appliance. Create a BNRItem and choose it from the UITableView.

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