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iOS SDK

  • Xamarin
    Getting Started with Xamarin.Forms: Customizing User InterfacePreview image@2x
    190 shares
    As you continue to progress in the ways of Xamarin.Forms, you will become more and more familiar with the out of the box controls. At some point, though, it will be inevitable that you will need to go beyond those controls and add some customization. That customization can come in the form of simple things, such as colors or as complex as creating a fully custom control. Either way, you will need customization. And I'm going to show you how.Read More…
  • Test-Driven Development
    Introduction to Testing on iOSPreview image@2x
    198 shares
    This tutorial will show you how to get started with automated unit testing of your iOS applications. In this tutorial, you'll learn the basics of creating an iOS unit test, how to structure your project to include your tests, new features that Xcode 6 has provided for unit testing your application, as well as a couple other tips and tricks.Read More…
  • Xcode 6
    Getting Up to Speed With Xcode 6Xcode preview image
    158 shares
    At this year's WWDC, Apple unveiled iOS 8, which it dubbed "the biggest release since the launch of the App Store". At the same time, Apple released Xcode 6, offering developers new and improved tools to aid in developing their applications. This article will get you up to speed on the most important updates in Apple's IDE.Read More…
  • iOS SDK
    iOS 8: Getting Started With MetalPreview image@2x
    126 shares
    This tutorial will show you how to get started with Metal, a framework introduced in iOS 8 that supports GPU accelerated 3D graphics rendering and data parallel computation workloads. In this tutorial, we’ll take a look at the theoretical concepts that underly Metal. You'll also learn how to create a Metal application that sets the required hardware state for graphics, commits commands for execution in the GPU, and manages buffer, texture objects, and pre-compiled shaders.Read More…
  • Core Data
    iOS 8: Core Data and Asynchronous FetchingPreviewimage@2x
    176 shares
    In the previous article about iOS 8 and Core Data, we discussed batch updates. Batch updates aren't the only new API in town. As of iOS 8 and OS X Yosemite, it's possible to asynchronously fetch data. In this tutorial, we'll take a closer look at how to implement asynchronous fetching and in what situations your application can benefit from this new API.Read More…
  • Core Data
    iOS 8: Core Data and Batch UpdatesPreviewimage@2x
    125 shares
    Core Data has been around for many years on OS X and it didn't take Apple long to bring it to iOS. Even though the framework doesn't get as much attention as extensions or handoff, it continues to evolve year over year, and this year, with the release of iOS 8 and OS X Yosemite, is no different. Apple introduced a few new features to the Core Data framework, but the most notable are batch updates and asynchronous fetching. Developers have been asking for these features for many years and Apple finally found a way to integrate them into Core Data. In this tutorial, I will show you how batch updates work and what they mean for the Core Data framework.Read More…
  • Core Data
    Core Data from Scratch: ConcurrencyPreview image@2x
    136 shares
    If you're developing a small or simple application, then you probably don't see the benefit of running Core Data operations in the background. However, what would happen if you imported hundreds or thousands of records on the main thread during the first launch of your application? The consequences could be dramatic. For example, your application could be killed by Apple's watchdog for taking too long to launch. In this article, we take a look at the dangers when using Core Data on multiple threads and we explore several solutions to tackle the problem.Read More…
  • Xamarin
    Accessing Native Features with Xamarin.FormsPreview image@2x
    87 shares
    One of the biggest misconceptions that arose when Xamarin.Forms appeared on the scene was that developers would no longer have access to the individual platforms' APIs. That couldn't be further from the truth. With inclusion of some very cool functionality within Xamarin.Forms, you are able to jump from Forms code into native functionality and back again. Let's see where this rabbit hole will take us.Read More…
  • iOS 8
    iOS 8: Integrating Touch IDPreview image@2x
    225 shares
    iOS 8 introduces the Local Authentication framework, giving developers the ability to use the device's fingerprint sensor to authenticate users. This tutorial explains how it works, discusses the security implications, and creates a sample app.Read More…
  • Core Data
    Core Data from Scratch: Subclassing NSManagedObjectPreview image@2x
    131 shares
    Earlier in this series, we created Done, a simple application to learn more about the NSFetchedResultsController class. In that project, we used key value coding (KVC) and key value observing (KVO) to create and update records. This works fine, but from the moment your project has any kind of complexity, you'll quickly run into issues. Subclassing NSManagedObject makes this much easier.Read More…
  • iOS SDK
    Adding Blur Effects on iOSPreview image@2x
    251 shares
    With iOS 7, we saw a shift in Apple's design paradigm for mobile devices. Not only did they adopt the so-called flat design, Apple also added a few elements to this pattern themselves. One of these additions is the use of blurred-translucent backgrounds to convey the notion of depth and context. Take Control Center for instance, it blurs the contents of the view behind it as it gets pulled up. This gives the user the sense that it is positioned above other content on the screen and deserves focus. It does so without making the user lose track of where she is in the app.Read More…
  • Xamarin
    Getting Started with Xamarin.Forms: Layout OptionsXamarin preview image@2x
    155 shares
    It's true that Xamarin.Forms makes creating cross-platform mobile apps much simpler. You now have the ability to not only share the logic of your application across multiple platforms, but your user interface as well. Although this makes it seem like using Xamarin.Forms is a done deal, you still have choices to make. Those choices have to do with layout your screens and controls, which is what we'll cover in this tutorial.Read More…
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