Logomark
Top-notch video tutorials for developers.

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

Video Training for iOS Developers

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.

  • Quality content We stress the details. Each screencast is carefully produced in HD quality.
  • Team Plans Get access for your whole team. NSScreencast makes for great lunch & learns.
  • Any Device Stream on the web, or use one of our apps for  tv, iPhone, and iPad.
Keep up with iOS Development

NSScreencast has been releasing a new screencasts regularly for more than 6 years. With short videos you can learn a lot over time without a huge time commitment.

NSScreencast offers the largest collection of iOS development screencasts on the internet. With the range of videos that NSScreencast offers, there is something for people of every skill level.

Bite-sized screencasts on iOS and Mac development.

There are 35 episodes with tag 'uikit'   Clear search
lock
#459
Using Item Anchors we can position decoration views anchored to our layout items. This is could be used to outline or underline items, or in our case to add a little unread indicator badge to our items.
lock
#458
Not every layout will be appropriate for every screen size. In this episode you'll see how you can use the layout environment when constructing your compositional layout to provide a more suitable layout for iPad.
lock
#457
One of the things you'd get for free with UITableView in the grouped style is a nice rounded rect background around your sections. With UICollectionView, you can implement these with background decoration views. We'll see how to set these up in our compositional layout to give the series section a different feel.
lock
#456
Our Diffable Datasource and snapshots are generic over the type of data that we pass to the cells. So how can we make sections with completely different data? In this episode we'll cover one approach which involves defining an enum with associated data for each of the sections. We'll use this to add a Series strip of data mixed in with our collection view.
lock
#455
In this episode we'll make a custom header view to give some of our sections a title. The approach we use here with compositional layout is more flexible than with UITableView. We'll start with a UICollectionReusableView implementation for our header, add the desired item to our layout, and then vend the desired view using the datasource's supplementaryViewProvider.
lock
#454
Diffable datasources provides a great API for driving your collection view updates in a transactional, state-driven way. We no longer have to manually call insert/delete/move rows when the data is changed. Instead, we apply a new snapshot and the changes are made for us, including animations.
Shape
#453
First introduced in iOS 13, UICollectionViewCompositionalLayout is an amazing and powerful addition that gives you lots of flexibility when describing layouts. There are a few new types to get used to (namely sections, groups, and items) but they all work together allowing you to keep layout separate from your views and your data.
Shape
#452
With UITableView no longer being encouraged for use, we need to replace this behavior with UICollectionView. This is where UICollectionViewListLayout comes into play. Using this layout we can get the familiar table view appearance in plain and grouped styles (as well as additional styles to support sidebars on iPad and macOS). This includes support for sticky headers and footers, swipe actions, and other UITableView behaviors that we've come to rely on.
Shape
#451
In this episode we migrate our collection view to use the new cell registration API. Using this API we no longer need to cast dequeued cell types to our custom types. Instead, we set up the registration object with the cell type and the data we'll be passing to each cell. This further reduces the code we have to write in our datasource implementation and gives us more flexibility on how and where cells are configured.
Shape
#450
In this episode we review the basic example app and start setting up our collection view in code. We start with the basic flow layout which is most common. Later we'll refactor this to use the newer style, but this episode introduces the series and sets up the foundation we'll build upon.
lock
#415
One of the features of iOS 13 that has not gotten much attention is the new diffable datasources for UITableView and UICollectionView. Using UITableViewDiffableDataSource or UICollectionViewDiffableDataSource along with NSDiffableDataSourceSnapshot you can create safe, animatable changes between two states without having to keep track of which records were added, moved, or deleted. It's seriously great!
lock
#408
We take our player bar and install it into a custom tab bar. To do this we have to create a custom tab bar controller and tab bar subclass and mix it with just a little bit of questionable UIKit hackery to get it to layout how we want. We'll talk about the tradeoffs for different approaches as well as see some useful debugging tips when a button isn't responding to taps.
Shape
#406
Sometimes we need to create variants of our icons. This can be done by using template images and using a UIImageView with a tintColor change, however sometimes this isn't feasible. We can use our icons along with a mask to create new images of whatever color we want. In this episode we'll use UIGraphicsImageRenderer to quickly draw a new dimmed image for a highlighted button state.
lock
#405
In this episode we implement one of the core functions of a podcast player: playing audio! Using AVPlayer we load up the track and observe its progress so we can update the UI to reflect time progressed, time remaining, as well as allowing the user to scrub to a position in the track.
lock
#404
We've spent a lot of time dealing with the data, networking, architecture, and overall theme of our podcast app, but we haven't yet written a player! So in this episode we start the process of designing our player screen. We'll start by adding all of the controls and views to our PlayerViewController, wire everything up, and customize the look & feel to match our Sketch design.
lock
#273
In the refactoring series, Soroush mentioned a protocol he uses to make initializing view controllers from a storyboard as easy as adopting a protocol (and completely type-safe). In this episode we will build this using Swift protocol extensions. The end result is something you can easily carry with you from project to project.
lock
#272
This episode wraps up the refactoring series by implementing the transition to the PhotosViewController. Ben and Soroush talk about the overall process and benefits of coordinators as a pattern to clean up view controllers and organize logic around how your app is stitched together.
lock
#271
Moving on to the next segue in our storyboard, this time Ben and Soroush tackle the Add Review flow. They discuss naming of delegates, the ideal place to perform logic such as preparing a model to be saved and where mutations to the model live. They end up with a view controller that is completely decoupled from the AddReviewViewController and a better picture of what the coordinator tends to look like.
lock
#270
In this episode, Soroush and Ben create the first delegate for a view controller in order to pull out the behavior a user might trigger by interacting with the view controller. This delegate conformance is added to our coordinator so this flow logic is in one place (and not in the view controller).
lock
#268
What is the Coordinators pattern, and why is it useful? Soroush and Ben discuss this and then get started refactoring an existing application that uses Storyboards into using Coordinators. We implement our first AppCoordinator and wire it up on launch.
lock
#265
Have you ever wanted to replicate the 3D Touch actions that are available in Mail.app? How do you make these custom interactions beyond the simple action sheet that you get out of the box? In this episode Conrad walks us through adding custom interaction using 3D Touch to a list building application.
lock
#262
Conrad Stoll shows us how to implement Peek and Pop using 3D Touch on supported devices. We learn how to do it in code versus the storyboard, as well as how to customize the display and presentation of the previewed view controller.
lock
#243
Wrapping up our custom download button, this time we focus on the highlighted image and depressed state of the button, as well as transitioning to and from the progress layer.
lock
#242
In this episode we create a custom control to serve as our download button. We start by creating a circular progress indicator using CAShapeLayer, then move on to subclassing UIControl to provide our image view and touch handling.