Logomark
A shot of to go with your morning coffee.

Curious? Get 3 great screencasts FREE.

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 This isn't Youtube. 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.
Stay up to date!

Founded in 2012, NSScreencast has been releasing a new screencast each week 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.

Displaying Episode 265 - 288 of 372 in total
lock
#108
UIStoryboards can help visualize your screen flow and even describe how to transition between view controllers using segues. In this episode I'll show you how you can take advantage of built-in support to unwind segues to back to where you came from. I'll show the automatic way as well as how to manually unwind a segue.
lock
#107
In this episode I customize UITableViewCell to provide swipe to reveal behavior, similar to Mail.app. We use UIScrollView's delegate methods to ensure that we never land mid-way through the swipe, raise notifications to make sure only one cell is open at a time, and we use a help app called Reveal to assist us in visualizing the view hierarchy.
lock
#106
In this episode I cover how to extend UITableViewCells to provide a swipe action, marking an item as read or unread. Combined with a nifty little progress animation, this adds functionality to your table view cells without requiring extra buttons or action sheets.
lock
#105
In this episode we examine the difference between strong and copy semantics for properties, and why you'd favor copy for types such as NSString and NSArray.
lock
#104
In this episode we tackle how to implement an ever increasing trend in iOS 7 app design: blur. We start by doing it the "easy" way using UIToolbar, then move on to a more custom and flexible approach using our own blurred image.
lock
#103
In this episode we wrap up our refactoring of a complex view controller, this time introducing a model, factoring out a new data source class, and more.
lock
#102
In this episode I take a fairly simple application with a single view controller and examine how we can refactor it into more discrete parts.
lock
#101
In this episode we look at a powerful built-in Foundation class called NSPredicate. With predicates we can easily filter large collections of data based on values contained in the collection.
lock
#100
In our special 100th episode I dive into a fun little class called CAEmitterLayer. Using this class we can create cool particle effects such as fire, water, smoke, clouds, or a fountain of stars.
Shape
#99
In this episode we cover a basic but fundamentally important topic: dealing with dates & times. Particularly when dealing with an API, dates can arrive in all shapes and sizes. We'll examine some of the common ones, talk about how to parse these formats into NSDate instances, and how to use NSDateFormatter to display them back again as a string.
lock
#98
In this episode we grab image data live from the camera on an iPhone 5. We discuss inputs and outputs, image formats, and finally (you guessed it) put a mustache live on each face in the video frame using the face detection techniques demonstrated in Episode 96.
lock
#97
In this episode I implement a fast scrolling "nub" to assist with scrolling through table views with many entries. The technique was lifted from the Dropbox app and I build a quick prototype of how it works.
lock
#96
In this episode we dive into CoreImage with a fun feature: detecting faces in photos! We also find the eyes & mouth positions and use Core Graphics to draw on our photo.
lock
#95
In this episode we take a look at implementing an iBeacon transmitter and receiver. Using this technology we can detect nearby beacons and range them in order to see how far away they are.
lock
#94
In this episode I upgrade the sample app created way back in Episode 4 using Kiwi to Xcode 5 and XCTest. Along the way, we're greeted with a number of warnings & errors that we have to address to get the Kiwi tests to run with XCTest.
lock
#93
Background transfers are a new feature of iOS 7 where you can have the OS download files in the background and have them ready for your application when you launch it the next time. In this episode we write a simple image downloader that takes advantage of background sessions.
lock
#92
In this episode we write an application that takes advantage of iOS 7's background fetch feature, allowing us to keep our application updated in the background so that the user doesn't have to wait for updated data when the application is launched.
lock
#91
In this episode we take a look at the brand new design of AFNetworking 2.0. We'll convert our TuneStore application to leverage AFNetworking and clean up our View Controller by introducing a new class to handle the network plumbing. We'll also take a look at a handy UIKit category for easily managing an activity indicator's state.
lock
#90
In this episode we continue our example from Episode 89, using NSURLSessionDataTask to download images for our rows. We also see how we can benefit from the built-in cache settings of NSURLSessionConfiguration and how to efficiently request images while scrolling.
lock
#89
In this episode we take a look at the brand new NSURLSession family of classes. We'll consume the iTunes Affiliate Search API and show how to do a simple GET request.
lock
#88
In this episode we continue our transition example from episode 86. We create a new InteractiveSwipe transition class that we can use for dismissal so the user can swipe the view controllers away instead of tapping a button.
Shape
#87
This week we have another free bonus video on the improvements that Xcode 5 brings to Autolayout. As something that has been quite obnoxious to work with in the past, many people dismissed auto layout when it was introduced to iOS 6. With these improvements it is much more friendly and dare I say... usable?
lock
#86
Now that the iOS 7 is out and the NDA has been lifted you can expect NSScreencast to cover lots of the new features. In this episode I show how you can take a simple stock modal transition for a color picker and create something more unique and playful that fits with the "swatch" theme.
Shape
#85
To celebrate the launch of iOS 7, here is a bonus free screencast covering a few of the concepts in iOS 7 such as the status bar behavior, tint color, and navigation bar transitions. We'll also take a look at Xcode 5 with a couple of the new features, including the integrated test runner.