Top-notch video tutorials for Swift developers

Thousands of developers use NSScreencast to stay on top of iOS development.

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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 15 and iOS 17

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

UIKit, SwiftUI, SwiftData, 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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We stress the details. Each screencast is carefully produced in HD quality.

Short and Focused

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

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Stream on the web or use our native apps for iOS or the tv.

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Steven Tolton

Have I mentioned lately how awesome NSScreencast is? No? Worth the subscription. Check it out if you’re an iOS developer. Or even if you’re not and you want an example of how to do coding screencasts well.

Foster Bass

Got tired of dead-end googling so I checked to see if @NSScreencast had covered what I was looking for. Of course he had, 4 years ago. Should have checked there first.

Aijaz Ansari

One 13-minute episode of @NSScreencast just paid for the yearly subscription fee in amount of time saved. Do it.

Sam Soffes

Seriously great stuff even for seasoned developers. I’ve learned a good amount from Ben’s videos.

James Dempsey

You can really expand your development horizons in just a few minutes a week with NSScreencast.

Alexis Gallagher

Random PSA for iOS developers: @NSScreencast is a great resource, and worth every penny. It’s high quality, practical, and honest.

Nate Armstrong

Can’t say enough good things about @NSScreencast There is gold in the Road Trip DJ Series.

Karl Oscar Weber

I just reuppped my subscription to @NSScreencast. [An] indespensible resource if you’re into iOS or Mac Development.

Marcus Ziadé

Just finished @NSScreencast series on Modern CollectionViews. Strongly recommended. Programmatic UI, nicely structured code, easily approachable explanation style. 👌

Showing episodes 265 - 288 of 589 in total
  • Setting up Xcode

    #325

    Setting up a New Mac for Development

    In this episode we setup our Xcode preferences and themes.

  • Setting Up a Ruby Development Environment

    #324

    Setting up a New Mac for Development

    In this episode we install homebrew, a popular package manager. We use it to install Macvim and ruby. We also setup Postgres with Postgresapp.

  • Setting Up Git and SSH

    #323

    Setting up a New Mac for Development

    In this episode we configure git to identify our commits, set up a diffing & merging tool, and configure SSH so we can log into other machines securely.

  • Setting Up iTerm Keyboard Behavior

    #322

    Setting up a New Mac for Development

    In this episode we configure iTerm’s keyboard behavior to match macOS to allow for quick jumping between words in the terminal.

  • Setting Up Dotfiles

    #321

    Setting up a New Mac for Development

    In this episode, we set up our dotfiles to customize aspects of bash, git, vim, and other terminal programs that are core to a good terminal experience.

  • Fastlane Boarding

    #320

    Managing external beta users can be a bit of a chore, as you have to log into iTunes Connect and add them one by one (or a batch if you have them collected already). If you’re opening your beta to a wider audience, you can save a lot of time by automating it. In this episode we will use Fastlane Boarding to automate adding testers to Testflight.

  • Setting Up the Terminal

    #319

    Setting up a New Mac for Development

    In this episode we will setup iTerm2, profiles, custom color schemes, and fonts.

  • System Preferences

    #318

    Setting up a New Mac for Development

    In this episode we look at some of the basic system preferences on macOS High Sierra. We set up the Dock, Keyboard shortcuts, and show how to customize key repeat timing outside of the preferences window.

  • Preheating Images with Nuke

    #317

    The prefetch APIs for UITableView and UICollectionView are great for preemptively loading pages of data, as we saw in episode 315. However, to take full advantage of this API we should also leverage loading or processing data related to the cells we are about to show. One common example of this is fetching an image before the cell comes on screen. In this episode we will implement this with a handy library called Nuke. The result is quite impressive.

  • Dependency Inversion Principle

    #316

    S.O.L.I.D.

    In this episode we cover the dependency inversion principle, which states that high level components should not depend on low level components, but instead they both should depend on abstractions. We will look at two examples of this and leverage dependency injection to decouple classes from concrete dependencies.

  • UITableView Prefetching

    #315

    Extending our example from episode 309, here we implement automatic tableview paging support by utilizing the UITableViewDatasourcePrefetching protocol. With this protocol, our delegate is notified of upcoming rows the user is about to encounter, and gives us an opportunity to preemptively load data for those rows.

  • Interface Segregation Principle

    #314

    S.O.L.I.D.

    In this episode we examine ISP (the Interface Segregation Principle). This one states that a type should not depend on methods from an interface that it will never use. Often times this means that the type probably carries too many responsibilities, but breaking it apart is difficult for other reasons (perhaps too many things depend on it and changing it would be expensive). You can extract smaller interfaces that support the individual responsibilities, but still have the same class adopt it. Doing so opens up opportunities for further refactoring and testing.

  • Liskov Substitution Principle

    #313

    S.O.L.I.D.

    In this episode we examine the Liskov Subtitution Principle, which stresses the importance of the strong relationship a type has with its super type. Understanding LSP can help you identify when you are missing an important abstraction, or perhaps when inheritance is being abused as a tool.

  • Open Closed Principle

    #312

    S.O.L.I.D.

    The Open Closed Principle (or OCP) states that a class should be open for extension, but closed for modification. The goal is to write classes that are more stable, and don't require constant changes themselves to support every scenario the software encounters. Instead, having a stable class to inherit from can provide a nice extension point for our software to customize it for other needs.

  • Single Responsibility Principle

    #311

    S.O.L.I.D.

    In this episode we'll examine a type that has too many responsibilities and refactor it into multiple types, each with their own responsibility.

  • The SOLID Principles

    #310

    S.O.L.I.D.

    This episodes kicks off a new series on SOLID principles for improving at object-oriented design. Writing better code means writing code that costs less to change, which can be a crucial factor in delivering project successfully. In this series we will see how these principles apply to Swift.

  • Automatic UITableView Paging

    #309

    UITableView can support scrolling 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 pagination using an easy technique.

  • Managing Secrets

    #308

    Our applications often depend on 3rd party services that require API tokens, Client IDs & Secrets, Passwords and other sensitive data. This data should not be checked into your source repository for numerous reasons. Having control over who has access to keys is important, especially for larger organizations. In this episode I will show you one technique for managing these keys without having to check them into git.

  • Codable as a Caching Layer - Part 2

    #307

    In this episode we continue with our caching example, this time introducing a new type that will handle the caching for us, as well as wrapping the response type into a new type that will indicate to the view controller if the response was served from the cache or from the network. We end the episode by implementing Equatable so that our store can avoid needless double callbacks if the data has not changed.

  • Codable as a Caching Layer

    #306

    In a recent project I leveraged the Codable protocol to save API responses to disk to make the application more responsive (and to have an offline mode). I was happy with the results. In this episode we will add some caching to an existing application, saving JSON responses to the caches directory on the device.

  • Codable and Polymorphism

    #305

    Codable is a great API, but sometimes real APIs can be tricky to model. In this episode we’ll examine a real use case of an API that returns a collection of elements, each of them similar but specified by a type. We’ll leverage Codable and inheritance to create a representation of this structure and show how you can peek into the container in order to determine what type to decode.

  • Adding a Flash Toggle Camera Control

    #304

    Camera Capture and Detection

    In this episode we extract our camera preview layer into its own view so we can add subviews. We’ll use this to add a flash button control to the UI, which will require us to learn about locking the device and controlling the camera’s "torch".

  • Capturing High Resolution Photos

    #303

    Camera Capture and Detection

    I got a tip from a subscriber about the method I used to capture the photo in the last episode. Since we're capturing the data using the preset we chose for processing the rectangles, we are bound to that preset when we export to an actual photo. By using AVCapturePhotoOutput, we can have much more control over the format, size, and quality of the resulting image. In addition, since we are leveraging the SDK for capturing the photo, we benefit from things like auto-flash, HDR, auto focus, and the built-in camera shutter sound. (Yay for deleting code!) The end result might not look very different on device, but if you are taking that image somewhere else to do OCR or other processing on it, a higher quality image is important.

  • Designing Icons with Sketch

    #302

    Sometimes we need to create a quick icon and we don't have a designer handy. Usually in these situations I lean on icon packs like Parakeet Primaries or Glyphish. Lately I’ve needed some icons that aren’t available in packs like these, or the license isn’t suitable for what I want to use it for. In those situations I use Sketch to create icons myself. I’m no graphic designer, but I have found it helpful to know how to create basic things and export them for use in iOS projects. In this episode I design 2 icons that we’ll use in a future episode.