Weekly bite-sized screencasts on iOS development.

Asynchronous Operations

Episode #176 | 17 minutes | published on 07/03/2015
Subscribers Only
In this episode we examine the asynchronous (a.k.a concurrent) type of NSOperation where we are doing things that involve callback blocks or delegates.

NSOperation Basics

Episode #175 | 17 minutes | published on 06/26/2015
Subscribers Only
In this episode we take a look at the basics of NSOperation, NSOperationQueue, starting from block operations and moving to custom NSOperation subclasses. We'll also see why it's important to make your operations thread safe.

Local Notifications

Episode #174 | 23 minutes | published on 06/18/2015
Subscribers Only
In this episode we cover local notifications in iOS 8. We cover the difference between count-down style notifications and time-zone based notifications. We also discuss how to add actions to the notifications and handle those in your application.

Interactive Magic Move

Episode #173 | 17 minutes | published on 06/11/2015
Subscribers Only
In this episode we take the Magic Move transition from last week's episode and make interactive, so that you can feel the transition along with your swipe.

Magic Move

Episode #172 | 29 minutes | published on 06/04/2015
Subscribers Only
In this episode we'll create a custom view controller animation that mimics the Magic Move behavior from keynote, taking one object and animating into its place on the next slide (or view controller).

NSDateComponents

Episode #171 | 10 minutes | published on 05/29/2015
Subscribers Only
In this episode we examine how we can leverage the NSDateComponents class to convert a set of individual date parts like month, day, year into an actual NSDate

Testing with Quick

Episode #170 | 16 minutes | published on 05/21/2015
Subscribers Only
In this episode we talk about a Swift testing framework called Quick. Quick offers a familiar BDD style syntax, some really friendly matchers, as well as support for testing asynchronous parts of our code. We'll use a Ninja class as our example, testing initialization, equality, and an asynchronous method.

Road Trip DJ - Part 14 (Final)

Episode #169 | 21 minutes | published on 05/14/2015
Subscribers Only
In this episode we wrap up our long Road Trip DJ Series. We resume testing on the device, uncovering and fixing an auto-layout issue, working with the music players events to keep our UI in sync, implementing a song progress indicator and implementing scrubbing. Phew!

Road Trip DJ - Part 13

Episode #168 | 10 minutes | published on 05/14/2015
Subscribers Only
In this episode we fix up the scrollbar, handle taps and update the active track, as well as adding a background color to the active row.

Road Trip DJ - Part 12

Episode #167 | 13 minutes | published on 04/30/2015
Subscribers Only
In this episode I do some deep auto-layout constraint debugging with Reveal, and discuss how to make our header resize based on the device we're running on.

Road Trip DJ - Part 11

Episode #166 | 20 minutes | published on 04/23/2015
Subscribers Only
In this episode I address the usability concerns of our toolbar buttons. I removed the bar button item spacing elements and instead use auto layout to control the size of the buttons. We also add a visual indicator of how wide each button is when you tap it, and fix the play/pause state of the middle button.

Road Trip DJ - Part 10

Episode #165 | 9 minutes | published on 04/17/2015
Subscribers Only
In this episode we adapt MPMediaItem to our PlaylistItem protocol and fix some issues related to running on the device. We add play/pause functionality, and discuss the issue of hit area on our toolbar buttons.

Road Trip DJ - Part 9

Episode #164 | 8 minutes | published on 04/09/2015
Subscribers Only
In this episode I fix a couple of bugs and fix the transition animation for the header view by leveraging UIView snapshotting.

Road Trip DJ - Part 8

Episode #163 | 12 minutes | published on 04/06/2015
Subscribers Only
In this episode we fix the playlist header at the top, first by a custom collection view layout, then by simply using a custom view at the top.

Road Trip DJ - Part 7

Episode #162 | 14 minutes | published on 03/26/2015
Subscribers Only
In this episode we wire up the next / previous track buttons and modify which track is currently shown in the header. We also encounter an unexpected issue when comparing signed and unsigned integers.

Road Trip DJ - Part 6

Episode #161 | 18 minutes | published on 03/19/2015
Subscribers Only
In this episode we make a custom collection view header to prominently display the currently playing track. We also fix up some auto layout issues from the last episode.

Road Trip DJ - Part 5

Episode #160 | 23 minutes | published on 03/12/2015
Subscribers Only
This time we work on the collection view layout and cells, along the way we create an abstraction of our media items to make development go a bit faster and to allow the app to display content in the simulator.

Road Trip DJ Part 4

Episode #159 | 24 minutes | published on 03/09/2015
Subscribers Only
In this episode I put some custom icons in the player bar and convert this into a control that can be displayed in interface builder, complete with configurable spacing between buttons using Interface Builder.

Road Trip DJ - Part 3

Episode #158 | 13 minutes | published on 02/26/2015
Free Video
Continuing 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.

Road Trip DJ Part 2

Episode #157 | 12 minutes | published on 02/19/2015
Free Video
In 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.