noemail@noemail.org (Ben Scheirman)Fri, 17 Apr 2026 08:40:28 GMThttps://nsscreencast.comen-usnoCopyright (c) 2012 NSScreencast.comios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmentBite-sized screencasts on iOS development.NSScreencastBen Scheirmanben@nsscreencast.comBen Scheirmanhttps://nsscreencast.com/episodes/605-brc-part2Wed, 4 Feb 2026 09:00:00 GMTtag:nsscreencast.com,2005:Episode/1062The initial, naive solution for the 1 Billion Row Challenge, which involved splitting strings by separator and semicolon, parsing cities and temperatures, and then collecting and outputting data, ran in approximately 11 minutes. This time we profile our solution to see where the time is spent. We find some quick wins for optimization and drastically improve the run time.ben@nsscreencast.com (Ben Scheirman)noThe initial, naive solution for the 1 Billion Row Challenge, which involved splitting strings by separator and semicolon, parsing cities and temperatures, and then collecting and outputting data, ran in approximately 11 minutes. This time we profile our solution to see where the time is spent. We find some quick wins for optimization and drastically improve the run time.Ben ScheirmanThe initial, naive solution for the 1 Billion Row Challenge, which involved splitting strings by separator and semicolon, parsing cities and temperatures, and then collecting and outputting data, ran in approximately 11 minutes. This time we profile our solution to see where the time is spent. We find some quick wins for optimization and drastically improve the run time.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/604-brc-part1Fri, 23 Jan 2026 10:00:00 GMTtag:nsscreencast.com,2005:Episode/1061In this episode, I am thrilled to be joined by Matt Massicotte to kick off the "1 Billion Row Challenge" in Swift. The goal is to efficiently parse a massive file containing weather station data and calculate the min, max, and mean temperatures for each city. We set up a Swift package, explore basic file I/O methods, memory mapping, chunked reading, and implement a naive solution that processes the data and sets the stage for significant optimization in upcoming episodes.ben@nsscreencast.com (Ben Scheirman)noIn this episode, I am thrilled to be joined by Matt Massicotte to kick off the "1 Billion Row Challenge" in Swift. The goal is to efficiently parse a massive file containing weather station data and calculate the min, max, and mean temperatures for each city. We set up a Swift package, explore basic file I/O methods, memory mapping, chunked reading, and implement a naive solution that processes the data and sets the stage for significant optimization in upcoming episodes.Ben ScheirmanIn this episode, I am thrilled to be joined by Matt Massicotte to kick off the "1 Billion Row Challenge" in Swift. The goal is to efficiently parse a massive file containing weather station data and calculate the min, max, and mean temperatures for each city. We set up a Swift package, explore basic file I/O methods, memory mapping, chunked reading, and implement a naive solution that processes the data and sets the stage for significant optimization in upcoming episodes.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/591-audiokit-2Fri, 4 Apr 2025 09:00:00 GMTtag:nsscreencast.com,2005:Episode/1048We'll first take a look at the AudioKit Cookbook application, which is a great way to see what is possible. Once we've seen some of the capabilities we can look at the code to get an idea of how to build things with AudioKit. We'll then add a package collection in Xcode to make bringing in the various AudioKit package dependencies a little easier.ben@nsscreencast.com (Ben Scheirman)noWe'll first take a look at the AudioKit Cookbook application, which is a great way to see what is possible. Once we've seen some of the capabilities we can look at the code to get an idea of how to build things with AudioKit. We'll then add a package collection in Xcode to make bringing in the various AudioKit package dependencies a little easier.Ben ScheirmanWe'll first take a look at the AudioKit Cookbook application, which is a great way to see what is possible. Once we've seen some of the capabilities we can look at the code to get an idea of how to build things with AudioKit. We'll then add a package collection in Xcode to make bringing in the various AudioKit package dependencies a little easier.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/590-audiokit-1Fri, 28 Mar 2025 09:00:00 GMTtag:nsscreencast.com,2005:Episode/1047We kick off a new series on audio programming for iOS using AudioKit. Before we jump into code, however, it is important to get a foundational understanding of how audio works and how it is represented by the audio hardware (sound cards, etc) that the software integrates with. In this episode we will talk about the fundamentals of audio, learn some essential terminology, and look at some real world audio equipment so we can better understand the mental model behind AudioKit.ben@nsscreencast.com (Ben Scheirman)noWe kick off a new series on audio programming for iOS using AudioKit. Before we jump into code, however, it is important to get a foundational understanding of how audio works and how it is represented by the audio hardware (sound cards, etc) that the software integrates with. In this episode we will talk about the fundamentals of audio, learn some essential terminology, and look at some real world audio equipment so we can better understand the mental model behind AudioKit.Ben ScheirmanWe kick off a new series on audio programming for iOS using AudioKit. Before we jump into code, however, it is important to get a foundational understanding of how audio works and how it is represented by the audio hardware (sound cards, etc) that the software integrates with. In this episode we will talk about the fundamentals of audio, learn some essential terminology, and look at some real world audio equipment so we can better understand the mental model behind AudioKit.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/553-mastodon-app-post-uiWed, 19 Apr 2023 10:42:00 GMTtag:nsscreencast.com,2005:Episode/1010In this episode we tackle showing a list of posts, which requires us to convert the network models into models more fit for the UI, parsing HTML in order to display as an AttributedString, and displaying the author information.ben@nsscreencast.com (Ben Scheirman)noIn this episode we tackle showing a list of posts, which requires us to convert the network models into models more fit for the UI, parsing HTML in order to display as an AttributedString, and displaying the author information.Ben ScheirmanIn this episode we tackle showing a list of posts, which requires us to convert the network models into models more fit for the UI, parsing HTML in order to display as an AttributedString, and displaying the author information.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/531-swiftui-escape-hatchThu, 2 Jun 2022 07:00:00 GMTtag:nsscreencast.com,2005:Episode/987Sometimes we run into issues where SwiftUI doesn't quite do what we need. In some cases, SwiftUI views are powered by UIKit under the hood. Wouldn't it be great (and devious) to dig into the underlying UIKit views to customize things when vanilla SwiftUI just won't cut it? In this episode we'll look at a technique for discovering the UIKit underneath SwiftUI views.ben@nsscreencast.com (Ben Scheirman)noSometimes we run into issues where SwiftUI doesn't quite do what we need. In some cases, SwiftUI views are powered by UIKit under the hood. Wouldn't it be great (and devious) to dig into the underlying UIKit views to customize things when vanilla SwiftUI just won't cut it? In this episode we'll look at a technique for discovering the UIKit underneath SwiftUI views.Ben ScheirmanSometimes we run into issues where SwiftUI doesn't quite do what we need. In some cases, SwiftUI views are powered by UIKit under the hood. Wouldn't it be great (and devious) to dig into the underlying UIKit views to customize things when vanilla SwiftUI just won't cut it? In this episode we'll look at a technique for discovering the UIKit underneath SwiftUI views.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/526-hot-reloading-with-injectFri, 15 Apr 2022 10:00:00 GMTtag:nsscreencast.com,2005:Episode/982One of the most impactful things you can do to improve productivity is to improve turnaround time when iterating on features. Playgrounds and Xcode Live Previews are great, but both have their limitations. In this episode we will explore how to utilize hot module reloading to have the simulator automatically reflect your changes when you save. It's magic, and will blow your mind!ben@nsscreencast.com (Ben Scheirman)noOne of the most impactful things you can do to improve productivity is to improve turnaround time when iterating on features. Playgrounds and Xcode Live Previews are great, but both have their limitations. In this episode we will explore how to utilize hot module reloading to have the simulator automatically reflect your changes when you save. It's magic, and will blow your mind!Ben ScheirmanOne of the most impactful things you can do to improve productivity is to improve turnaround time when iterating on features. Playgrounds and Xcode Live Previews are great, but both have their limitations. In this episode we will explore how to utilize hot module reloading to have the simulator automatically reflect your changes when you save. It's magic, and will blow your mind!ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/501-modularization-nested-xcode-projectsThu, 26 Aug 2021 10:00:00 GMTtag:nsscreencast.com,2005:Episode/861One way of achieving modularization is to build frameworks using nested Xcode projects. This has the benefit of having everything in one place and can easily build the entire thing. You can also zero-in on a single project and just work from there if you want. Each sub-project can have its own tests, sample application, etc.ben@nsscreencast.com (Ben Scheirman)noOne way of achieving modularization is to build frameworks using nested Xcode projects. This has the benefit of having everything in one place and can easily build the entire thing. You can also zero-in on a single project and just work from there if you want. Each sub-project can have its own tests, sample application, etc.Ben ScheirmanOne way of achieving modularization is to build frameworks using nested Xcode projects. This has the benefit of having everything in one place and can easily build the entire thing. You can also zero-in on a single project and just work from there if you want. Each sub-project can have its own tests, sample application, etc.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/500-modularization-motivationThu, 19 Aug 2021 10:00:00 GMTtag:nsscreencast.com,2005:Episode/860In this episode we will talk about the overview and motivation for a modular project architecture. Why split things up? I'll talk about the problems we face, what benefits we may achieve, and how can we approach the problem.ben@nsscreencast.com (Ben Scheirman)noIn this episode we will talk about the overview and motivation for a modular project architecture. Why split things up? I'll talk about the problems we face, what benefits we may achieve, and how can we approach the problem.Ben ScheirmanIn this episode we will talk about the overview and motivation for a modular project architecture. Why split things up? I'll talk about the problems we face, what benefits we may achieve, and how can we approach the problem.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/491-xcode-13-vimTue, 15 Jun 2021 10:00:00 GMTtag:nsscreencast.com,2005:Episode/819One of my favorite new features of Xcode 13 is support for Vim key bindings. In this episode we will see how to enable this and I'll give a quick tour of how to get around using Vim.ben@nsscreencast.com (Ben Scheirman)noOne of my favorite new features of Xcode 13 is support for Vim key bindings. In this episode we will see how to enable this and I'll give a quick tour of how to get around using Vim.Ben ScheirmanOne of my favorite new features of Xcode 13 is support for Vim key bindings. In this episode we will see how to enable this and I'll give a quick tour of how to get around using Vim.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/486-codable-witnesses-1Thu, 22 Apr 2021 10:40:00 GMTtag:nsscreencast.com,2005:Episode/782In the next few episodes we will explore the concept of Protocol Witnesses. This is an advanced topic that can be somewhat hard to approach, but in learning about Protocol Witnesses you will see how we can leverage the Swift language and functional programming to do some really cool things.ben@nsscreencast.com (Ben Scheirman)noIn the next few episodes we will explore the concept of Protocol Witnesses. This is an advanced topic that can be somewhat hard to approach, but in learning about Protocol Witnesses you will see how we can leverage the Swift language and functional programming to do some really cool things.Ben ScheirmanIn the next few episodes we will explore the concept of Protocol Witnesses. This is an advanced topic that can be somewhat hard to approach, but in learning about Protocol Witnesses you will see how we can leverage the Swift language and functional programming to do some really cool things.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/482-context-menus-the-basicsMon, 29 Mar 2021 10:00:00 GMTtag:nsscreencast.com,2005:Episode/746Context menus are a great affordance for performing related actions to a UI element. Users can tap and hold to view the context menu, and the gesture is consistent across the OS so users will likely already be familiar with it. In this episode we'll show how to set up a basic context menu with a custom preview with normal and destructive actions.ben@nsscreencast.com (Ben Scheirman)noContext menus are a great affordance for performing related actions to a UI element. Users can tap and hold to view the context menu, and the gesture is consistent across the OS so users will likely already be familiar with it. In this episode we'll show how to set up a basic context menu with a custom preview with normal and destructive actions.Ben ScheirmanContext menus are a great affordance for performing related actions to a UI element. Users can tap and hold to view the context menu, and the gesture is consistent across the OS so users will likely already be familiar with it. In this episode we'll show how to set up a basic context menu with a custom preview with normal and destructive actions.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/481-mapping-models-with-avanderleeMon, 22 Mar 2021 10:00:00 GMTtag:nsscreencast.com,2005:Episode/745This is a discussion and code overview of another implementation of mapping models using key paths with a special guest, Antoine van der Lee! In this episode we talk about his initial goals and constraints, and some of the design tradeoffs he made while designing a solution that would give him a bidirectional mapping between Core Data entities and other model types.ben@nsscreencast.com (Ben Scheirman)noThis is a discussion and code overview of another implementation of mapping models using key paths with a special guest, Antoine van der Lee! In this episode we talk about his initial goals and constraints, and some of the design tradeoffs he made while designing a solution that would give him a bidirectional mapping between Core Data entities and other model types.Ben ScheirmanThis is a discussion and code overview of another implementation of mapping models using key paths with a special guest, Antoine van der Lee! In this episode we talk about his initial goals and constraints, and some of the design tradeoffs he made while designing a solution that would give him a bidirectional mapping between Core Data entities and other model types.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/453-modern-collection-views-04-compositional-layoutFri, 31 Jul 2020 10:41:23 GMTtag:nsscreencast.com,2005:Episode/653First 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.ben@nsscreencast.com (Ben Scheirman)noFirst 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.Ben ScheirmanFirst 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.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/452-modern-collection-views-03-list-layoutFri, 31 Jul 2020 10:41:23 GMTtag:nsscreencast.com,2005:Episode/652With 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.ben@nsscreencast.com (Ben Scheirman)noWith 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.Ben ScheirmanWith 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.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/451-modern-collection-views-02-cell-registrationFri, 31 Jul 2020 10:41:23 GMTtag:nsscreencast.com,2005:Episode/651In 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.ben@nsscreencast.com (Ben Scheirman)noIn 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.Ben ScheirmanIn 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.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/450-modern-collection-views-01-setupFri, 31 Jul 2020 10:41:23 GMTtag:nsscreencast.com,2005:Episode/650In 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.ben@nsscreencast.com (Ben Scheirman)noIn 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.Ben ScheirmanIn 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.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/447-rendering-waveforms-in-swiftuiThu, 9 Jul 2020 18:41:00 GMTtag:nsscreencast.com,2005:Episode/647I've been working on rendering waveforms using mathematical functions and have found the experience to be both fun and enlightening. In this episode we will develop a method to render arbitrary functions using a Shape, then explore some mathematical concepts that can help us render a nice looking waveform that could be use to indicate activity in sound, speech, or other effects.ben@nsscreencast.com (Ben Scheirman)noI've been working on rendering waveforms using mathematical functions and have found the experience to be both fun and enlightening. In this episode we will develop a method to render arbitrary functions using a Shape, then explore some mathematical concepts that can help us render a nice looking waveform that could be use to indicate activity in sound, speech, or other effects.Ben ScheirmanI've been working on rendering waveforms using mathematical functions and have found the experience to be both fun and enlightening. In this episode we will develop a method to render arbitrary functions using a Shape, then explore some mathematical concepts that can help us render a nice looking waveform that could be use to indicate activity in sound, speech, or other effects.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/445-swiftui-gridsThu, 25 Jun 2020 10:00:00 GMTtag:nsscreencast.com,2005:Episode/645With the introduction of LazyVGrid and LazyHGrid In iOS 14 we now have access to much more powerful grid-based layouts in SwiftUI. In this episode We will examine the different types of layouts we can accomplish with flexible, fixed, and adaptive sizing for our rows and columns. We'll look at how animations work between different layouts, and how to consider larger screen sizes.ben@nsscreencast.com (Ben Scheirman)noWith the introduction of LazyVGrid and LazyHGrid In iOS 14 we now have access to much more powerful grid-based layouts in SwiftUI. In this episode We will examine the different types of layouts we can accomplish with flexible, fixed, and adaptive sizing for our rows and columns. We'll look at how animations work between different layouts, and how to consider larger screen sizes.Ben ScheirmanWith the introduction of LazyVGrid and LazyHGrid In iOS 14 we now have access to much more powerful grid-based layouts in SwiftUI. In this episode We will examine the different types of layouts we can accomplish with flexible, fixed, and adaptive sizing for our rows and columns. We'll look at how animations work between different layouts, and how to consider larger screen sizes.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/444-swiftui-native-progress-viewsWed, 24 Jun 2020 10:00:00 GMTtag:nsscreencast.com,2005:Episode/644A few episodes back we covered how to wrap a UIActivityIndicatorView to show loading progress in SwiftUI. Now in iOS 14 this is built in. In this episode we'll cover the various styles, how to hook it up to a Progress instance, and how to create your own custom progress visualizations.ben@nsscreencast.com (Ben Scheirman)noA few episodes back we covered how to wrap a UIActivityIndicatorView to show loading progress in SwiftUI. Now in iOS 14 this is built in. In this episode we'll cover the various styles, how to hook it up to a Progress instance, and how to create your own custom progress visualizations.Ben ScheirmanA few episodes back we covered how to wrap a UIActivityIndicatorView to show loading progress in SwiftUI. Now in iOS 14 this is built in. In this episode we'll cover the various styles, how to hook it up to a Progress instance, and how to create your own custom progress visualizations.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/443-swiftui-lazy-stacksTue, 23 Jun 2020 10:00:00 GMTtag:nsscreencast.com,2005:Episode/643iOS 14 Beta is now available and one of the new features is Lazy stacks. With a normal stack, all the layout happened at once, which meant poor performance for large lists of content, grids, etc. With Lazy stacks the views are only created when they first come on screen, greatly increasing the usefulness of stacks for large or infinite collections of content.ben@nsscreencast.com (Ben Scheirman)noiOS 14 Beta is now available and one of the new features is Lazy stacks. With a normal stack, all the layout happened at once, which meant poor performance for large lists of content, grids, etc. With Lazy stacks the views are only created when they first come on screen, greatly increasing the usefulness of stacks for large or infinite collections of content.Ben ScheirmaniOS 14 Beta is now available and one of the new features is Lazy stacks. With a normal stack, all the layout happened at once, which meant poor performance for large lists of content, grids, etc. With Lazy stacks the views are only created when they first come on screen, greatly increasing the usefulness of stacks for large or infinite collections of content.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/417-swift-5-result-typeFri, 8 Nov 2019 10:00:00 GMTtag:nsscreencast.com,2005:Episode/521Before Swift 5 we used to write our own Result type to contain a value or an error (but never both). A lot of 3rd party libraries brought along their own as well. Then Swift 5 came and brought us Result. Not only is it slightly different than the ones we might be familiar with, Swift's Result type also has some useful functionality up its sleeve.ben@nsscreencast.com (Ben Scheirman)noBefore Swift 5 we used to write our own Result type to contain a value or an error (but never both). A lot of 3rd party libraries brought along their own as well. Then Swift 5 came and brought us Result. Not only is it slightly different than the ones we might be familiar with, Swift's Result type also has some useful functionality up its sleeve.Ben ScheirmanBefore Swift 5 we used to write our own Result type to contain a value or an error (but never both). A lot of 3rd party libraries brought along their own as well. Then Swift 5 came and brought us Result. Not only is it slightly different than the ones we might be familiar with, Swift's Result type also has some useful functionality up its sleeve.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/406-tinting-an-image-using-masksThu, 15 Aug 2019 10:00:00 GMTtag:nsscreencast.com,2005:Episode/510Sometimes 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.ben@nsscreencast.com (Ben Scheirman)noSometimes 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.Ben ScheirmanSometimes 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.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/400-swiftui-gesturesFri, 12 Jul 2019 10:40:00 GMTtag:nsscreencast.com,2005:Episode/504Attaching gestures works quite a bit differently in SwiftUI than in UIKit. In this episode we will look at the @DragGesture property wrapper and how we can use gestures to update custom state that we can then use to transform our UI.ben@nsscreencast.com (Ben Scheirman)noAttaching gestures works quite a bit differently in SwiftUI than in UIKit. In this episode we will look at the @DragGesture property wrapper and how we can use gestures to update custom state that we can then use to transform our UI.Ben ScheirmanAttaching gestures works quite a bit differently in SwiftUI than in UIKit. In this episode we will look at the @DragGesture property wrapper and how we can use gestures to update custom state that we can then use to transform our UI.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/399-swiftui-transforms-and-animationsThu, 11 Jul 2019 10:00:00 GMTtag:nsscreencast.com,2005:Episode/503SwiftUI's declarative nature makes building UIs incredibly easy. In this episode we will build a wallet UI with cards. We will create a CardView so we can reuse it in multiple places. Then we will use transforms to alter it's size and position. Finally we will see how declarative animations work as we expand the cards apart.ben@nsscreencast.com (Ben Scheirman)noSwiftUI's declarative nature makes building UIs incredibly easy. In this episode we will build a wallet UI with cards. We will create a CardView so we can reuse it in multiple places. Then we will use transforms to alter it's size and position. Finally we will see how declarative animations work as we expand the cards apart.Ben ScheirmanSwiftUI's declarative nature makes building UIs incredibly easy. In this episode we will build a wallet UI with cards. We will create a CardView so we can reuse it in multiple places. Then we will use transforms to alter it's size and position. Finally we will see how declarative animations work as we expand the cards apart.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/397-swiftui-tip-calculatorFri, 14 Jun 2019 10:00:00 GMTtag:nsscreencast.com,2005:Episode/500Now that we've seen a taste of SwiftUI, let's dive into a real example and build an app. We'll have a first look at @State variables we can use to creating a binding between our state and our UI, and we'll run into a few puzzling errors and see how we can coax Xcode into giving us the right error message.ben@nsscreencast.com (Ben Scheirman)noNow that we've seen a taste of SwiftUI, let's dive into a real example and build an app. We'll have a first look at @State variables we can use to creating a binding between our state and our UI, and we'll run into a few puzzling errors and see how we can coax Xcode into giving us the right error message.Ben ScheirmanNow that we've seen a taste of SwiftUI, let's dive into a real example and build an app. We'll have a first look at @State variables we can use to creating a binding between our state and our UI, and we'll run into a few puzzling errors and see how we can coax Xcode into giving us the right error message.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/396-hello-swift-uiThu, 13 Jun 2019 10:00:00 GMTtag:nsscreencast.com,2005:Episode/499Back from WWDC 19 and blown away by the announcements. There's a lot to cover, but we'll start by digging into the most exciting announcement: SwiftUI. This is going to change everything...ben@nsscreencast.com (Ben Scheirman)noBack from WWDC 19 and blown away by the announcements. There's a lot to cover, but we'll start by digging into the most exciting announcement: SwiftUI. This is going to change everything...Ben ScheirmanBack from WWDC 19 and blown away by the announcements. There's a lot to cover, but we'll start by digging into the most exciting announcement: SwiftUI. This is going to change everything...ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/367-dates-and-timesThu, 13 Dec 2018 14:48:00 GMTtag:nsscreencast.com,2005:Episode/407Working with dates is a task that is universally applicable to Swift developers. Particularly when dealing with an API, dates can arrive in all shapes and sizes. We‘ll examine some of the common ones such as ISO 8601, show how to parse these formats into Date instances, and how to use DateFormatter to display them back again as a string. We‘ll also cover the importance of using en_US_POSIX and honoring the user‘s Locale when displaying dates. ben@nsscreencast.com (Ben Scheirman)noWorking with dates is a task that is universally applicable to Swift developers. Particularly when dealing with an API, dates can arrive in all shapes and sizes. We‘ll examine some of the common ones such as ISO 8601, show how to parse these formats into Date instances, and how to use DateFormatter to display them back again as a string. We‘ll also cover the importance of using en_US_POSIX and honoring the user‘s Locale when displaying dates.Ben ScheirmanWorking with dates is a task that is universally applicable to Swift developers. Particularly when dealing with an API, dates can arrive in all shapes and sizes. We‘ll examine some of the common ones such as ISO 8601, show how to parse these formats into Date instances, and how to use DateFormatter to display them back again as a string. We‘ll also cover the importance of using en_US_POSIX and honoring the user‘s Locale when displaying dates.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/356-push-notifications-ios-setupThu, 20 Sep 2018 15:39:00 GMTtag:nsscreencast.com,2005:Episode/396In this episode we configure our iOS app to receive push notifications, adding the OneSignal SDK to our project, configuring the Notification Service extension, and testing it out on a real device.ben@nsscreencast.com (Ben Scheirman)noIn this episode we configure our iOS app to receive push notifications, adding the OneSignal SDK to our project, configuring the Notification Service extension, and testing it out on a real device.Ben ScheirmanIn this episode we configure our iOS app to receive push notifications, adding the OneSignal SDK to our project, configuring the Notification Service extension, and testing it out on a real device.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/355-push-notifications-setting-up-certSun, 16 Sep 2018 15:50:00 GMTtag:nsscreencast.com,2005:Episode/395In this episode we look at how to generate a certification for adding push notification support for your app, using OneSignal as our push notification providerben@nsscreencast.com (Ben Scheirman)noIn this episode we look at how to generate a certification for adding push notification support for your app, using OneSignal as our push notification providerBen ScheirmanIn this episode we look at how to generate a certification for adding push notification support for your app, using OneSignal as our push notification providerios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/319-new-mac-setup-terminalMon, 15 Jan 2018 10:40:00 GMTtag:nsscreencast.com,2005:Episode/327In this episode we will setup iTerm2, profiles, custom color schemes, and fonts.ben@nsscreencast.com (Ben Scheirman)noIn this episode we will setup iTerm2, profiles, custom color schemes, and fonts.Ben ScheirmanIn this episode we will setup iTerm2, profiles, custom color schemes, and fonts.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/318-new-mac-setup-preferencesFri, 12 Jan 2018 10:00:00 GMTtag:nsscreencast.com,2005:Episode/326In 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.ben@nsscreencast.com (Ben Scheirman)noIn 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.Ben ScheirmanIn 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.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/309-automatic-uitableview-pagingThu, 2 Nov 2017 10:00:00 GMTtag:nsscreencast.com,2005:Episode/317UITableView 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. ben@nsscreencast.com (Ben Scheirman)noUITableView 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.Ben ScheirmanUITableView 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.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/259-hello-cloud-kit-part-2Thu, 9 Mar 2017 10:00:00 GMTtag:nsscreencast.com,2005:Episode/267In order to use CloudKit to read or write private data (or to write in the public database) the user will have to be signed in to iCloud on their device. If they are not, they'll not have a great experience, and things won't work. In this episode we'll check the account status before trying to save a record in CloudKit. We'll also respond to the notification to know when the user's account status has changed so we can react accordingly.ben@nsscreencast.com (Ben Scheirman)noIn order to use CloudKit to read or write private data (or to write in the public database) the user will have to be signed in to iCloud on their device. If they are not, they'll not have a great experience, and things won't work. In this episode we'll check the account status before trying to save a record in CloudKit. We'll also respond to the notification to know when the user's account status has changed so we can react accordingly.Ben ScheirmanIn order to use CloudKit to read or write private data (or to write in the public database) the user will have to be signed in to iCloud on their device. If they are not, they'll not have a great experience, and things won't work. In this episode we'll check the account status before trying to save a record in CloudKit. We'll also respond to the notification to know when the user's account status has changed so we can react accordingly.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/258-hello-cloud-kit-part-1Thu, 2 Mar 2017 10:00:00 GMTtag:nsscreencast.com,2005:Episode/266The first episode in a new series on CloudKit, here we see how to setup our project to use CloudKit as well as how to create and save our first record.ben@nsscreencast.com (Ben Scheirman)noThe first episode in a new series on CloudKit, here we see how to setup our project to use CloudKit as well as how to create and save our first record.Ben ScheirmanThe first episode in a new series on CloudKit, here we see how to setup our project to use CloudKit as well as how to create and save our first record.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/248-poker-hands-part-1Thu, 22 Dec 2016 10:00:00 GMTtag:nsscreencast.com,2005:Episode/256In this episode I am joined by Soroush Khanlou. Together we pair up to implement the Poker Hands Kata. We start off by parsing the raw string input into structured types, complete with tests.ben@nsscreencast.com (Ben Scheirman)noIn this episode I am joined by Soroush Khanlou. Together we pair up to implement the Poker Hands Kata. We start off by parsing the raw string input into structured types, complete with tests.Ben ScheirmanIn this episode I am joined by Soroush Khanlou. Together we pair up to implement the Poker Hands Kata. We start off by parsing the raw string input into structured types, complete with tests.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/191-swift-2-optionalsThu, 8 Oct 2015 10:00:00 GMTtag:nsscreencast.com,2005:Episode/198In this free episode, we take a look at a core Swift 2 feature: Optionals. Unlike Objective-C, where nil is considered a no-op, in Swift nil is specifically recognized by the compiler, which forces you to handle cases where nil might be present in a variable.ben@nsscreencast.com (Ben Scheirman)noIn this free episode, we take a look at a core Swift 2 feature: Optionals. Unlike Objective-C, where nil is considered a no-op, in Swift nil is specifically recognized by the compiler, which forces you to handle cases where nil might be present in a variable.Ben ScheirmanIn this free episode, we take a look at a core Swift 2 feature: Optionals. Unlike Objective-C, where nil is considered a no-op, in Swift nil is specifically recognized by the compiler, which forces you to handle cases where nil might be present in a variable.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/189-swift-2-functions-and-extensionsThu, 1 Oct 2015 10:00:00 GMTtag:nsscreencast.com,2005:Episode/196In this free episode, Ben explores Swift 2 functions, how argument labels work, returning tuples, the guard clause, as well as extending behavior on core types.ben@nsscreencast.com (Ben Scheirman)noIn this free episode, Ben explores Swift 2 functions, how argument labels work, returning tuples, the guard clause, as well as extending behavior on core types.Ben ScheirmanIn this free episode, Ben explores Swift 2 functions, how argument labels work, returning tuples, the guard clause, as well as extending behavior on core types.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/187-swift-2-basicsThu, 17 Sep 2015 10:00:00 GMTtag:nsscreencast.com,2005:Episode/193In this episode we take a look at Swift 2's basic types such as Int, Double, Bool, Array, and Dictionary. This episode is part of a series covering Swift 2 from a beginner's perspective.ben@nsscreencast.com (Ben Scheirman)noIn this episode we take a look at Swift 2's basic types such as Int, Double, Bool, Array, and Dictionary. This episode is part of a series covering Swift 2 from a beginner's perspective.Ben ScheirmanIn this episode we take a look at Swift 2's basic types such as Int, Double, Bool, Array, and Dictionary. This episode is part of a series covering Swift 2 from a beginner's perspective.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/158-road-trip-dj-part-3Thu, 26 Feb 2015 10:00:00 GMTtag:nsscreencast.com,2005:Episode/164Continuing our build out of Road Trip DJ, this time I focus on the music player, and keeping the play/pause button in sync on UIToolbar, which proves to be more difficult than it should be.ben@nsscreencast.com (Ben Scheirman)noContinuing our build out of Road Trip DJ, this time I focus on the music player, and keeping the play/pause button in sync on UIToolbar, which proves to be more difficult than it should be.Ben ScheirmanContinuing our build out of Road Trip DJ, this time I focus on the music player, and keeping the play/pause button in sync on UIToolbar, which proves to be more difficult than it should be.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/157-road-trip-dj-part-2Thu, 19 Feb 2015 15:00:00 GMTtag:nsscreencast.com,2005:Episode/163In this episode we continue Road Trip DJ and implement the media picker controller, talk about the different modes that in can operate in and how that affects the usability of this app. We also consider how we're going to build a playlist and keep appending items to it.ben@nsscreencast.com (Ben Scheirman)noIn this episode we continue Road Trip DJ and implement the media picker controller, talk about the different modes that in can operate in and how that affects the usability of this app. We also consider how we're going to build a playlist and keep appending items to it.Ben ScheirmanIn this episode we continue Road Trip DJ and implement the media picker controller, talk about the different modes that in can operate in and how that affects the usability of this app. We also consider how we're going to build a playlist and keep appending items to it.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/156-road-trip-dj-part-1Fri, 13 Feb 2015 10:00:00 GMTtag:nsscreencast.com,2005:Episode/162In this episode we start building an app from scratch called Road Trip DJ. The idea is the build a playlist of music on the fly while it is playing. This is an app I've wanted to build for a while and it serves as a good, small app we can build from start to finish.ben@nsscreencast.com (Ben Scheirman)noIn this episode we start building an app from scratch called Road Trip DJ. The idea is the build a playlist of music on the fly while it is playing. This is an app I've wanted to build for a while and it serves as a good, small app we can build from start to finish.Ben ScheirmanIn this episode we start building an app from scratch called Road Trip DJ. The idea is the build a playlist of music on the fly while it is playing. This is an app I've wanted to build for a while and it serves as a good, small app we can build from start to finish.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/099-parsing-and-formatting-datesThu, 12 Dec 2013 14:00:00 GMTtag:nsscreencast.com,2005:Episode/105In 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.ben@nsscreencast.com (Ben Scheirman)noIn 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.Ben ScheirmanIn 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.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/087-xcode5-autolayout-improvementsThu, 26 Sep 2013 10:02:32 GMTtag:nsscreencast.com,2005:Episode/93This 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?ben@nsscreencast.com (Ben Scheirman)noThis 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?Ben ScheirmanThis 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?ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/085-hello-ios7Thu, 19 Sep 2013 10:01:00 GMTtag:nsscreencast.com,2005:Episode/91To 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.ben@nsscreencast.com (Ben Scheirman)noTo 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.Ben ScheirmanTo 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.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/060-windows-azure-mobile-services-part-2Tue, 2 Apr 2013 16:00:00 GMTtag:nsscreencast.com,2005:Episode/66We continue with our example chat application here and add the ability post a message, poll for updates, and receive push notifications. This episode utilizes a pod calles MessagesTableView controller to present an SMS like interface for the messages.ben@nsscreencast.com (Ben Scheirman)noWe continue with our example chat application here and add the ability post a message, poll for updates, and receive push notifications. This episode utilizes a pod calles MessagesTableView controller to present an SMS like interface for the messages.Ben ScheirmanWe continue with our example chat application here and add the ability post a message, poll for updates, and receive push notifications. This episode utilizes a pod calles MessagesTableView controller to present an SMS like interface for the messages.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/059-windows-azure-mobile-servicesThu, 28 Mar 2013 22:00:00 GMTtag:nsscreencast.com,2005:Episode/65This week we take a look at Windows Azure Mobile Services, a back-end for mobile applications that has first class iOS support. In this episode we begin building a full featured chat application. This is part 1 of 2, in which we set up a new mobile service, wire up the SDK with CocoaPods, set up Twitter authentication and enrich the data using Javascript on the server. This episode has been sponsored by Microsoft.ben@nsscreencast.com (Ben Scheirman)noThis week we take a look at Windows Azure Mobile Services, a back-end for mobile applications that has first class iOS support. In this episode we begin building a full featured chat application. This is part 1 of 2, in which we set up a new mobile service, wire up the SDK with CocoaPods, set up Twitter authentication and enrich the data using Javascript on the server. This episode has been sponsored by Microsoft.Ben ScheirmanThis week we take a look at Windows Azure Mobile Services, a back-end for mobile applications that has first class iOS support. In this episode we begin building a full featured chat application. This is part 1 of 2, in which we set up a new mobile service, wire up the SDK with CocoaPods, set up Twitter authentication and enrich the data using Javascript on the server. This episode has been sponsored by Microsoft.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/028-creating-a-cocoapodThu, 9 Aug 2012 10:00:00 GMTtag:nsscreencast.com,2005:Episode/34In this episode, we'll create a CocoaPod out of the modal picker view component we created in episodes 25 & 26. We'll see how to tag & push our code to a github repository and create a podspec so that others can use this component in their projects.ben@nsscreencast.com (Ben Scheirman)noIn this episode, we'll create a CocoaPod out of the modal picker view component we created in episodes 25 & 26. We'll see how to tag & push our code to a github repository and create a podspec so that others can use this component in their projects.Ben ScheirmanIn this episode, we'll create a CocoaPod out of the modal picker view component we created in episodes 25 & 26. We'll see how to tag & push our code to a github repository and create a podspec so that others can use this component in their projects.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/027-new-objective-c-syntaxThu, 2 Aug 2012 10:01:00 GMTtag:nsscreencast.com,2005:Episode/33The latest version of the LLVM compiler supports some excellent new syntax additions to the Objective-C language. In this episode, I cover what the new syntax is, how to use it, and a few caveats to look out for.ben@nsscreencast.com (Ben Scheirman)noThe latest version of the LLVM compiler supports some excellent new syntax additions to the Objective-C language. In this episode, I cover what the new syntax is, how to use it, and a few caveats to look out for.Ben ScheirmanThe latest version of the LLVM compiler supports some excellent new syntax additions to the Objective-C language. In this episode, I cover what the new syntax is, how to use it, and a few caveats to look out for.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/015-http-cachingThu, 10 May 2012 10:00:00 GMTtag:nsscreencast.com,2005:Episode/16HTTP Caching is an important concept to understand when building iPhone apps that consume HTTP APIs. In this episode, we'll see how leveraging Etags, Last Modified dates, and Cache-Control headers can help make your app more efficient and tolerable to use.ben@nsscreencast.com (Ben Scheirman)noHTTP Caching is an important concept to understand when building iPhone apps that consume HTTP APIs. In this episode, we'll see how leveraging Etags, Last Modified dates, and Cache-Control headers can help make your app more efficient and tolerable to use.Ben ScheirmanHTTP Caching is an important concept to understand when building iPhone apps that consume HTTP APIs. In this episode, we'll see how leveraging Etags, Last Modified dates, and Cache-Control headers can help make your app more efficient and tolerable to use.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/013-jenkinsThu, 26 Apr 2012 14:55:00 GMTtag:nsscreencast.com,2005:Episode/14In this episode, we'll set up a free continuous integration server called Jenkins (previously Hudson) to run our build. We'll configure it to automatically check out changes from git, run the build, and finally run all of our tests. We'll then use a conversion script to translate the test output into JUnit test report files that Jenkins natively understands.ben@nsscreencast.com (Ben Scheirman)noIn this episode, we'll set up a free continuous integration server called Jenkins (previously Hudson) to run our build. We'll configure it to automatically check out changes from git, run the build, and finally run all of our tests. We'll then use a conversion script to translate the test output into JUnit test report files that Jenkins natively understands.Ben ScheirmanIn this episode, we'll set up a free continuous integration server called Jenkins (previously Hudson) to run our build. We'll configure it to automatically check out changes from git, run the build, and finally run all of our tests. We'll then use a conversion script to translate the test output into JUnit test report files that Jenkins natively understands.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/012-importing-into-core-dataThu, 19 Apr 2012 13:34:00 GMTtag:nsscreencast.com,2005:Episode/13In this screencast I'll pull down data from an API, map the JSON to a Core Data Managed Object and import them in bulk on a background thread. Then we'll display the imported content in a UITableView using NSFetchedResultsController.ben@nsscreencast.com (Ben Scheirman)noIn this screencast I'll pull down data from an API, map the JSON to a Core Data Managed Object and import them in bulk on a background thread. Then we'll display the imported content in a UITableView using NSFetchedResultsController.Ben ScheirmanIn this screencast I'll pull down data from an API, map the JSON to a Core Data Managed Object and import them in bulk on a background thread. Then we'll display the imported content in a UITableView using NSFetchedResultsController.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/011-core-data-basicsThu, 19 Apr 2012 10:00:00 GMTtag:nsscreencast.com,2005:Episode/12Core Data is Apple's framework for persisting data on Mac & iOS. It can be though of as an ORM, however it's probably a lot different than most ORMs you've used in the past. In this episode, we'll set up Core Data from scratch so you can see all the moving parts.ben@nsscreencast.com (Ben Scheirman)noCore Data is Apple's framework for persisting data on Mac & iOS. It can be though of as an ORM, however it's probably a lot different than most ORMs you've used in the past. In this episode, we'll set up Core Data from scratch so you can see all the moving parts.Ben ScheirmanCore Data is Apple's framework for persisting data on Mac & iOS. It can be though of as an ORM, however it's probably a lot different than most ORMs you've used in the past. In this episode, we'll set up Core Data from scratch so you can see all the moving parts.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/010-fun-with-blocksWed, 4 Apr 2012 10:00:00 GMTtag:nsscreencast.com,2005:Episode/11Blocks are a great way to simplify code when dealing with asynchronous tasks (using GCD), callbacks, and atomic operations. In this episode, we'll look at a few ways you can use blocks in your code.ben@nsscreencast.com (Ben Scheirman)noBlocks are a great way to simplify code when dealing with asynchronous tasks (using GCD), callbacks, and atomic operations. In this episode, we'll look at a few ways you can use blocks in your code.Ben ScheirmanBlocks are a great way to simplify code when dealing with asynchronous tasks (using GCD), callbacks, and atomic operations. In this episode, we'll look at a few ways you can use blocks in your code.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/009-automatic-reference-countingThu, 29 Mar 2012 10:00:00 GMTtag:nsscreencast.com,2005:Episode/10In this episode, I'll show you how to convert your project to use Automatic Reference Counting (or ARC) to eliminate the need to use retain, release, autorelease, and dealloc in your Objective-C code!ben@nsscreencast.com (Ben Scheirman)noIn this episode, I'll show you how to convert your project to use Automatic Reference Counting (or ARC) to eliminate the need to use retain, release, autorelease, and dealloc in your Objective-C code!Ben ScheirmanIn this episode, I'll show you how to convert your project to use Automatic Reference Counting (or ARC) to eliminate the need to use retain, release, autorelease, and dealloc in your Objective-C code!ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/008-automatic-uitableview-pagingThu, 22 Mar 2012 15:16:00 GMTtag:nsscreencast.com,2005:Episode/9UITableView can support skimming 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 paging using an easy technique.ben@nsscreencast.com (Ben Scheirman)noUITableView can support skimming 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 paging using an easy technique.Ben ScheirmanUITableView can support skimming 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 paging using an easy technique.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/007-serializing-dataThu, 15 Mar 2012 15:16:00 GMTtag:nsscreencast.com,2005:Episode/8It can be useful to save lightweight application data to disk so that it persists between application launches. This episode will show you how to serialize common objects such as NSArray and NSDictionary to disk, as well as implementing custom object serialization using NSKeyedArchiver.ben@nsscreencast.com (Ben Scheirman)noIt can be useful to save lightweight application data to disk so that it persists between application launches. This episode will show you how to serialize common objects such as NSArray and NSDictionary to disk, as well as implementing custom object serialization using NSKeyedArchiver.Ben ScheirmanIt can be useful to save lightweight application data to disk so that it persists between application launches. This episode will show you how to serialize common objects such as NSArray and NSDictionary to disk, as well as implementing custom object serialization using NSKeyedArchiver.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/006-afnetworkingThu, 8 Mar 2012 10:00:00 GMTtag:nsscreencast.com,2005:Episode/7AFNetworking is a simple-yet-powerful toolkit for making HTTP requests dead simple. It is my current go-to framework for writing API clients in iOS applications.ben@nsscreencast.com (Ben Scheirman)noAFNetworking is a simple-yet-powerful toolkit for making HTTP requests dead simple. It is my current go-to framework for writing API clients in iOS applications.Ben ScheirmanAFNetworking is a simple-yet-powerful toolkit for making HTTP requests dead simple. It is my current go-to framework for writing API clients in iOS applications.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/005-cocoapodsFri, 2 Mar 2012 15:27:00 GMTtag:nsscreencast.com,2005:Episode/6Looking for a solution for managing dependencies similar to RubyGems? Look no further! CocoaPods is a great solution that makes it easy to manage dependencies to 3rd party libraries in your projects.ben@nsscreencast.com (Ben Scheirman)noLooking for a solution for managing dependencies similar to RubyGems? Look no further! CocoaPods is a great solution that makes it easy to manage dependencies to 3rd party libraries in your projects.Ben ScheirmanLooking for a solution for managing dependencies similar to RubyGems? Look no further! CocoaPods is a great solution that makes it easy to manage dependencies to 3rd party libraries in your projects.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/004-automated-testing-with-kiwiThu, 23 Feb 2012 14:44:00 GMTtag:nsscreencast.com,2005:Episode/5In this episode, I show you how to start testing with Kiwi, a test framework built on top of SenTestKit that has a style similar to Rspec.ben@nsscreencast.com (Ben Scheirman)noIn this episode, I show you how to start testing with Kiwi, a test framework built on top of SenTestKit that has a style similar to Rspec.Ben ScheirmanIn this episode, I show you how to start testing with Kiwi, a test framework built on top of SenTestKit that has a style similar to Rspec.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/003-uitableview-basicsFri, 17 Feb 2012 02:29:00 GMTtag:nsscreencast.com,2005:Episode/3UITableView is one of the most common controls in UIKit. This episode will show you the basics of how to make your view controller act as the delegate & datasource for the table view, as well as reading sample data (beers) from a plist file.ben@nsscreencast.com (Ben Scheirman)noUITableView is one of the most common controls in UIKit. This episode will show you the basics of how to make your view controller act as the delegate & datasource for the table view, as well as reading sample data (beers) from a plist file.Ben ScheirmanUITableView is one of the most common controls in UIKit. This episode will show you the basics of how to make your view controller act as the delegate & datasource for the table view, as well as reading sample data (beers) from a plist file.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/002-memory-problemsFri, 10 Feb 2012 00:00:00 GMTtag:nsscreencast.com,2005:Episode/2In this episode, I cover what happens if you make a mistake in your memory management. You'll see how the app behaves as well as how to find & fix these issues using Xcode & Instruments.ben@nsscreencast.com (Ben Scheirman)noIn this episode, I cover what happens if you make a mistake in your memory management. You'll see how the app behaves as well as how to find & fix these issues using Xcode & Instruments.Ben ScheirmanIn this episode, I cover what happens if you make a mistake in your memory management. You'll see how the app behaves as well as how to find & fix these issues using Xcode & Instruments.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,developmenthttps://nsscreencast.com/episodes/001-objective-c-basicsFri, 10 Feb 2012 15:17:00 GMTtag:nsscreencast.com,2005:Episode/1In this episode, I cover Objective-C the language. I cover the syntax of classes & methods, then go over how to work with objects using retain, release, and autorelease.ben@nsscreencast.com (Ben Scheirman)noIn this episode, I cover Objective-C the language. I cover the syntax of classes & methods, then go over how to work with objects using retain, release, and autorelease.Ben ScheirmanIn this episode, I cover Objective-C the language. I cover the syntax of classes & methods, then go over how to work with objects using retain, release, and autorelease.ios,iphone,ipad,objc,obj,c,objective,c,xcode,how,to,tutorial,screencast,video,episode,mobile,app,dev,development