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Bite-sized videos on iOS development.

The iOS landscape is large and changes often. With short, bite-sized videos released on a steady schedule, NSScreencast helps keep you continually up to date.

Up to date with Xcode 12 and iOS 14

We cover the latest and greatest to get you up to speed quickly.

UIKit, SwiftUI, and macOS

In our catalog you'll find a wide variety of topics and UI frameworks.

Swift Language

Increase your knowledge of the Swift language and take advantage of new Swift language features as they are developed.

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Short and Focused

We don't want to waste your time. Most videos are between 10 and 20 minutes long.

Any Device

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Showing episodes 481 - 504 of 504 in total
  • #24

    In this episode, I cover how to implement Pull to Refresh on UITableView using an easy open source project called SSPullToRefresh, by Sam Soffes. I cover the basics, as well as creating a custom loading panel, drawn with Core Graphics.

  • #23

    In this episode I dive into Storyboards to lay out view controllers and transitions. I start out by converting a blank slate project to use storyboards, then move on to transitions, dynamic table view prototype cells, and cover static table views at the end. It's a slightly longer video than normal, but if you haven't gotten into storyboards yet, this one's for you.

  • #22

    In this episode, I continue deconstructing Foursquare's custom UI. This time I focus on how to customize the UITabBar with the iOS 5 customization APIs.

  • #21

    In this episode, I decompose the Foursquare UI and recreate the custom navigation bar, using the iOS 5 customization APIs. You'll see how to set a custom background image, a title view that you can tap on, a custom bar button item, and a custom back button style.

  • #20

    It can be helpful to draw inspiration from how existing applications are built. In this screencast, we'll look at how to extract & view images from iOS applications you've downloaded from the App Store. In addition, we'll use a proxy to intercept and inspect network traffic so you can see how application APIs behave.

  • #19

    In this episode, I set up a push notification server using Rails and Urban Airship, and show the steps required to handle push notifications in an application.

  • #18

    To distribute your application to a wider audience of beta testers, you'll use what is called "adhoc provisioning." In this episode, I create an adhoc build configuration, show how to create a distribution profile for adhoc builds, and how to manually put the build on a device using the iPhone Configuration Utility. Lastly, I cover how to use Test Flight to easily send out builds to be installed over the air.

  • #17

    In this episode, I'll walk you through how to set up your Apple development certificate and provisioning profile in order to deploy an application to your device.

  • #16

    Key Value Observing (or KVO) is a powerful technique that you can use to be notified when a property changes. In this episode, we'll observe a property on a view to respond when it is updated. In addition, we'll look at the ramifications of KVO on your own classes.

  • #15

    HTTP Caching is an important concept to understand when building iPhone apps that consume HTTP APIs. In this episode, we'll see how leveraging Etags, Last Modified dates, and Cache-Control headers can help make your app more efficient and tolerable to use.

  • #14

    In this episode, we'll use AFNetworking to track the progress of a file download and display it in a UIProgressView. Once we've downloaded a small movie, we'll play it using MPMoviePlayerViewController.

  • #13

    In this episode, we'll set up a free continuous integration server called Jenkins (previously Hudson) to run our build. We'll configure it to automatically check out changes from git, run the build, and finally run all of our tests. We'll then use a conversion script to translate the test output into JUnit test report files that Jenkins natively understands.

  • #12

    In this screencast I'll pull down data from an API, map the JSON to a Core Data Managed Object and import them in bulk on a background thread. Then we'll display the imported content in a UITableView using NSFetchedResultsController.

  • #11

    Core Data is Apple's framework for persisting data on Mac & iOS. It can be though of as an ORM, however it's probably a lot different than most ORMs you've used in the past. In this episode, we'll set up Core Data from scratch so you can see all the moving parts.

  • #10

    Blocks are a great way to simplify code when dealing with asynchronous tasks (using GCD), callbacks, and atomic operations. In this episode, we'll look at a few ways you can use blocks in your code.

  • #9

    In this episode, I'll show you how to convert your project to use Automatic Reference Counting (or ARC) to eliminate the need to use retain, release, autorelease, and dealloc in your Objective-C code!

  • #8

    UITableView can support skimming through many rows of data, however fetching large amounts of remote data can slow down your app, use up too much memory, and bog down your web server. This is all wasteful if users aren't ever going to scroll down that far. In this episode you'll learn how to perform automatic UITableView paging using an easy technique.

  • #7

    It can be useful to save lightweight application data to disk so that it persists between application launches. This episode will show you how to serialize common objects such as NSArray and NSDictionary to disk, as well as implementing custom object serialization using NSKeyedArchiver.

  • #6

    AFNetworking is a simple-yet-powerful toolkit for making HTTP requests dead simple. It is my current go-to framework for writing API clients in iOS applications.

  • #5

    Looking for a solution for managing dependencies similar to RubyGems? Look no further! CocoaPods is a great solution that makes it easy to manage dependencies to 3rd party libraries in your projects.

  • #4

    In this episode, I show you how to start testing with Kiwi, a test framework built on top of SenTestKit that has a style similar to Rspec.

  • #3

    UITableView is one of the most common controls in UIKit. This episode will show you the basics of how to make your view controller act as the delegate & datasource for the table view, as well as reading sample data (beers) from a plist file.

  • #2

    In this episode, I cover what happens if you make a mistake in your memory management. You'll see how the app behaves as well as how to find & fix these issues using Xcode & Instruments.

  • #1

    In this episode, I cover Objective-C the language. I cover the syntax of classes & methods, then go over how to work with objects using retain, release, and autorelease.