Top-notch video tutorials for Swift developers

Curious? Get three great screencasts FREE

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

ExxonMobil
Venmo
Thoughtbot
The Working Group
Medium

Updated Regularly

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.

High Quality Videos

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.

Any Device

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

Team Plans

Get NSScreencast for your whole team. Discounts start at 5 seats

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.

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.

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

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

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

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

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

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

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

Showing episodes 193 - 216 of 491 in total
  • #299

    Camera Capture and Detection

    We get smarter about drawing, this time leveraging a custom path so we can display non-rectangular outlines.

  • #298

    Camera Capture and Detection

    In the last episode it was clear our coordinate math was wrong. But why? We will answer that question and solve the problem. We also add code to hide the box if it hasn’t detected a rectangle for a few seconds.

  • #297

    Camera Capture and Detection

    We learn how to convert a CMSampleBuffer into a CIImage and how to set up our CIDetector to detect rectangles. We then draw a box around the detected rectangle and discuss why adding simple subviews won't work with full screen sublayers.

  • #296

    Camera Capture and Detection

    We set up the preview layer so we can see the video, then we add a sample buffer queue so we can get access to the individual frames of the video coming through the capture session.

  • #295

    Camera Capture and Detection

    We start by setting up the project to take photos. We start by disabling rotation, which is typical of a camera app. We then add the appropriate Info.plist entry so that we can inform the user why we need camera access. We organize the view controller intro sections to keep things tidy as we add code to the project. Finally we setup the camera capture session, which is the first step to capturing video from the camera.

  • #294

    Camera Capture and Detection

    In this introductory episode I show the finished version of the application we will be building in this series.

  • #293

    Dive Into Core Graphics

    Core Graphics is a cross-platform technology, but there are some gotchas to consider when working on mac apps with AppKit. Sam will go over some of these differences to help you avoid some common pitfalls.

  • #292

    Dive Into Core Graphics

    In this episode we’ll learn how to draw images with core graphics, then watermark a photo by drawing text overlaid on top of it.

  • #291

    Dive Into Core Graphics

    In this episode we’ll leverage what we've learned to create a reusable control that will show progress as a path outlining a circle, complete with animation.

  • #290

    Dive Into Core Graphics

    In this video we’ll learn how to use custom drawing with CALayers to support implicit animations.

  • #289

    Dive Into Core Graphics

    Occasionally you will want to do some custom drawing, but not have that presented directly on the screen. Sometimes this is to "bake" the drawing into an image for faster scrolling performance (a single flattened image can be sent to the GPU easily without having to composite a bunch of views together). This is also often used to resize images that are too large for the intended view. This episode covers drawing to a custom context offscreen and obtaining an image out of it.

  • #288

    Dive Into Core Graphics

    In this episode, Sam shows how to draw text using Core Graphics. With this technique you can easily add text to images for pre-rendering, a technique we will see in another episode in this series.

  • #287

    Dive Into Core Graphics

    Sam shows how to use Core Graphics to draw images, which you might want to do if you want to blend techniques we’ve seen so far, such as clipping paths or gradients. Drawing images with Core Graphics is also useful to resize images if needed (perhaps if the API is returning one that is too large and you want to cache a thumbnail on device). You’ll also learn about a handy function to help you with aspect ratio math!

  • #286

    Dive Into Core Graphics

    Transforms allow you to draw things rotated, moved, or scaled differently than you specified. You can use this technique to reuse drawing operations where they only differ by some small factor (like drawing lines on a graph), to tilt things like text, or to correct issues where the drawn element is upside down or sideways. In this episode, Sam shares a helpful technique of drawing a grid with a highlighted "origin square" to make it obvious what the transforms are doing.

  • #285

    Dive Into Core Graphics

    Clipping paths allow you to control where drawing occurs by providing a path in which to limit future drawing operations. Since you can create arbitrary shapes with CGMutablePath (and UIBezierPath) this can be an essential technique to get the drawing effect in some situations.

  • #284

    Dive Into Core Graphics

    Gradients are slowly returning to be part of the common iOS design aesthetic once again (after iOS 7 introduced an entirely flat design paradigm). Subtle gradients can be used to create interesting designs, provide necessary contrast for drawing text on top of photos, and provide a realistic feel to custom controls. Learn how to create linear and radial gradients, how to define custom locations to control the position and "shape" of the gradient.

  • #283

    Dive Into Core Graphics

    What are color spaces? Sam discusses the common color spaces you might use and what they are used for. Why would you use these methods instead of just using UIColor? If you want cross-platform compatible drawing code, you’ll want to know how this works.

  • #282

    Dive Into Core Graphics

    Learn the basics of UIBezierPath and CGPathRef for representing drawing operations as a primitive type. Paths are incredibly useful to drawing and can be used to represent arbitrary lines, curves, and shapes.

  • #281

    Dive Into Core Graphics

    Learn how to create basic shapes using Core Graphics. We’ll start by creating a playground that we can use to quickly see the results of our work.

  • #280

    Dive Into Core Graphics

    Sam introduces the new series on Core Graphics, what to expect, and what the series covers.

  • #279

    We tackle some more complex (read: realistic) scenarios where the JSON structure doesn’t quite match the structure of the objects. We’ll do this by providing custom implementations of Encodable and Decodable, talk about keyed and unkeyed containers, and how you might be able to transform the date during the encoding process

  • #278

    Swift 4 finally answers the long-debated question of: How should I parse JSON with Swift? In this episode we'll take a look at the new Codable protocol in Swift 4, and talk about how to use JSONEncoder and JSONDecoder to serialize your objects into JSON and back again.

  • #277

    Hello CloudKit

    We finish the CloudKitNotesManager by providing a generic save and delete methods that we can use for any CKRecordWrapper type. We also implement a custom notification when a note is saved so that we can update an interested view controllers to update their UI.

  • #276

    Hello CloudKit

    In this episode we implement a CloudKit version of our NotesManager protocol. Along the way we'll implement a reusable query function and run into a limitation with Swift generics that we will have to work around.