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iOS five used to be one of many largest enhancements to iOS up to now, and has a ton of striking positive aspects that you’ll certainly are looking to begin utilizing on your apps. the single challenge is, there’s now not a ton of documentation or pattern code at the APIs, so they’re usually relatively tough to learn!

This is the place iOS five by means of Tutorials is available in! The objective of the publication is to aid intermediate and complicated iOS builders get up-to-speed with the APIs brought in iOS five within the fastest and easiest method – through tutorials!

Updated for iOS 6. This new moment version is absolutely updated with iOS 6 and Xcode 4.5. even supposing the booklet specializes in APIs brought in iOS five, the chapters were up to date to paintings on iOS 6, use glossy aim C syntax, and more.

This e-book is for intermediate or complicated iOS builders, who already understand the fundamentals of iOS improvement yet are looking to improve their talents to iOS 5.

iOS five by means of Tutorials quantity 1 covers the subsequent APIs:

  • ARC: the way to effectively migrate to ARC – and fear much much less approximately reminiscence administration.
  • Storyboards: how to make your apps extra quick with the hot Storyboards characteristic.
  • iCloud: how you can shop your app’s facts within the cloud and proportion throughout units.
  • GLKit: the right way to use GLKit to make OpenGL ES 2.0 programming a lot easier.
  • UIKit Customization: tips on how to thoroughly customise the appear and feel of your apps.

The iOS educational crew takes satisfaction in ensuring every one educational we write holds to the top criteria of caliber. we'd like our tutorials to be good written, effortless to persist with, and enjoyable. And we don’t are looking to simply skim the outside of an issue – we wish to particularly dig into it, so that you can really know the way it really works and follow the data at once on your personal apps.

By the time you’re complete interpreting this publication, your talents could be thoroughly brand new with iOS five, and you’ll have the capacity to use those new applied sciences straight away on your apps!

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Read or Download iOS 5 by Tutorials: Volumes 1 and 2 PDF

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iOS 5 by Tutorials: Volumes 1 and 2

IOS five used to be one of many largest improvements to iOS up to now, and has a ton of amazing gains that you’ll certainly are looking to commence utilizing on your apps. the single challenge is, there’s now not a ton of documentation or pattern code at the APIs, so they’re frequently fairly difficult to profit! this can be the place iOS five through Tutorials is available in!

Additional resources for iOS 5 by Tutorials: Volumes 1 and 2

Example text

Because the outlets are now weak, you no longer have to worry about them, but you’re still responsible for cleaning up any other data that you do own. If you no longer want to hang on to objects, you need to set their pointers to nil explicitly. Remove viewDidUnload and replace it with: - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; _soundEffect = nil; } In the event of a low-memory warning, this method sets _soundEffect to nil to force the deallocation of the SoundEffect object.

Because they are now zeroing weak pointers, there is no more need to set the properties to nil by yourself in viewDidUnload. In fact, by the time viewDidUnload gets called these properties already are nil. com Page 51 iOS 5 by Tutorials Chapter 2: Beginning ARC - (void)viewDidUnload { [super viewDidUnload]; _soundEffect = nil; } But remember, if your app is running on iOS 6 and a low-memory situation occurs, the view will not be unloaded and viewDidUnload method will not be called. So how do you handle this in a way that works on both iOS 5 and 6?

PropertyName. propertyName”. Tip: With the latest versions of Xcode you’re no longer required to manually synthesize your properties. You can completely leave out the @synthesize statement and the compiler will automatically create the backing instance variable for you. The name of this variable is the same as the property name, but again with an additional underscore in front. This rule is especially important for readonly properties. ARC can get confused if you modify such properties by changing their instance variables, and strange bugs will result.

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