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
UIKit, SwiftUI, SwiftData, and macOS
Swift Language
High Quality Videos
Short and Focused
Any Device
Team Plans
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. 👌
#152
In this episode I take a look at the basics of Cocoa Bindings. With Bindings you can have your controls on your view bound to properties on your controller or model, and even have controls bound to themselves. What would normally be a lot of manual plumbing code is handled for you automatically by bindings. To demonstrate, we build a live-updating temperature converter.
#151
In this episode we take a look at CoreAnimation's easiest form of animation with CABasicAnimation. Using this class we can animate properties of a layer, such as frame, background color, paths for CAShapeLayer, and more. We also cover timing functions and how to make a transition between shapes a bit easier for the system to interpolate between.
#150
In this first episode covering OS X development, I cover how to manage windows, window controllers and xibs with Objective-C and Swift. There are lots of options (and opinions) here, so we follow some advice from Mike Ash's blog post on the topic.
#149
Have you ever wondered how bezier paths work? What are the control points, and how exactly do they affect the line? In this episode we'll build our own visualization of how a bézier path is constructed to help understand it better.
#148
We continue our example of CoreImage CIFilters, this time showing how function composition can facilitate working with filters a bit more flexible and chainable. Starting with the imperative, method-based approach, then gradually building towards a pattern that allows us to easily build filters functionally, swapping out the order, and changing around input parameters.
#147
In this episode we take a look at Core Image, Apple's image framework for image effects on iOS and Mac OS X.
#146
In this episode I revisit the blur technique we covered in episode 104 and re-implement it using iOS 8's Visual Effect view with UIBlurEffect and UIVibrancyEffect.
#145
In this episode we continue our building of a share extension. This time we focus on performing the actual upload in the background, sharing a background session with our application through the App Group capability.
#144
In this episode we create an application and share extension that lets us post to the Imgur API. We use a Framework to share API code between application and extension, and we leverage App Groups so that background sessions transfer across both as well.
#143
In this episode we cover a horribly named, yet fairly powerful concept called flat map. We'll use this technique to solve the problem we discovered last time dealing with Result<T> and having to use a switch statement everywhere.
#142
In this episode I talk about the pattern of communicating errors in Cocoa and how it can be improved by leveraging features in Swift. By introducing a Result type that is generic and applies to any type, it appears useful, however we run into some cumbersome use cases that will require further discussion.
#141
In this episode we use UIKit Dynamics to create something fun: Rope! By attaching many segments together with attachments, we can simulate the physics of a rope. We also discover the best way to move an object on the screen in conjunction with existing attachments.
#140
In this episode we take another look at UIKit Dynamics, this time focusing on UIAttachmentBehavior, which allows you to create springs between elements to fix them in place or make them swing.
#139
One of iOS 8's more powerful new features is App Extensions. With extensions we have a whole new range of possibilities. In this episode we'll focus on the Today Extension, which is a way to add a widget to Notification Center for quick access.
#138
Finally iOS 8 and Xcode 6 are available and out of NDA and we can cover them on NSScreencast. There are tons of new features to cover, so today I'm just going to pick one: IBDesignable. With IBDesignable you can live preview your custom views so you don't have to stare at empty gray boxes in Interface Builder anymore. Interface Builder just got way more useful!
#137
In this episode we explore the powerful UIKit Dynamics that was introduced with iOS 7. With Dynamics you can simulate real world interactions between your views. We'll go over the basics of collision, gravity, rigid bounds, and leave off with an example of why you shouldn't use it to make games.
#136
In this episode we'll attempt to create the board for the game Connect Four. We'll leverage what we've learned about auto layout and create the connect four board constraints, then we'll draw the view. We have to draw it filled with a bunch of holes, so that we can see objects passing behind it. Using Core Graphics and clipping paths we can accomplish this effect.
#135
What good is a static layout? When specifying layout using constraints, we still need to provide transitions and other animations in our interfaces. We can do this quite easily by just animating between different sets of constraints.
#134
In this episode we explore Apple's Visual Format Language for building Auto Layout Constraints. While a bit strange at first glance, the Visual Format Language can really convey a lot of layout information in just a few characters in comparison to the manual building of NSLayoutConstraints can be.
#133
In this episode we take a look at how to set up auto layout constraints in code, rather than with Interface Builder / Storyboards. Whether you prefer to work in code or storyboards to lay you user interfaces, often times setting things up in code is required. You'll see how to use NSLayoutConstraint to fully specify a layout, and hopefully understand a bit more about how auto layout works.
#132
Realm is a new project that aims to replace Core Data and even SQLite for mobile app persistent storage needs. While an ambitious goal, I like seeing alternatives in this area, as Core Data is not always my favorite framework. In this episode we'll add Realm to a project and store a few rudimentary objects. We'll also see a quick way to query the data in the "realm".
#131
In this episode we wrap up our JSON parsing exploration in Swift by extending the decoding to work with arrays. Doing so cleans up the extraction code significantly.
#130
In this episode we attempt to write a more idiomatic JSON Parsing framework leveraging Swift. To accomplish this we'll lean heavily on Swift's powerful enum features and apply a couple of custom operators to clean up syntax and reduce redundant code.
#129
Parsing JSON (which provides no contracts or type guarantees) can be difficult and tedious in Swift. Many of the problems you are forced to deal with were easier to ignore in Objective-C, but that doesn't mean they weren't present. In this episode we'll take a look at a very manual approach to mapping from a JSON response to a Swift type.