Weekly bite-sized screencasts on iOS development.

Displaying Episode 221 - 240 of 252 in total

Core Graphics: Gradients

Episode #32 | 18 minutes | published on 09/06/2012
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Core Graphics is a complex topic, but can be very handy to create designs without using images, as well as maintaining resolution independence. In this episode I show how to create a couple of simple gradients using Core Graphics.

Posting Multi-part Forms with AFNetworking

Episode #31 | 31 minutes | published on 08/30/2012
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In this episode, I take an existing app and add the ability to post information to a server, including photo uploads. We report on the progress of the upload and configure AFNetworking to do a proper muliti-part HTTP form post. In addition, I cover how to build a standalone static TableViewController to represent a form using Storyboards.

Parse

Episode #30 | 17 minutes | published on 08/23/2012
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In this episode I build an app with Parse, a service that provides custom data storage, files, push notifications, a geolocation support.

RubyMotion

Episode #29 | 18 minutes | published on 08/16/2012
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RubyMotion is a toolkit that allows you to write native iOS applications using Ruby. Normally I'm pretty skeptical of these alternative frameworks, but RubyMotion is actually quite interesting. In this episode I build a small application and talk about the pros & cons of using the toolkit.

Creating a Cocoapod

Episode #28 | 13 minutes | published on 08/09/2012
Free Video
In 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.

New Objective-C Syntax

Episode #27 | 13 minutes | published on 08/02/2012
Free Video
The 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.

Building a Custom Picker Component - Part 2

Episode #26 | 13 minutes | published on 07/26/2012
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In this episode, I continue where I left of in episode 25. I add a nice animation to present & dismiss the picker, as well as a backdrop view that allows you to tap anywhere to cancel.

Building a Custom Picker Component

Episode #25 | 19 minutes | published on 07/19/2012
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In this episode, we'll talk about how to extract code from a view controller into a reusable component. We'll create a simple class that combines a UIPickerView with a toolbar for making quick selections from a small list of values. This ran a little long, so it is broken down into 2 parts.

Pull to Refresh

Episode #24 | 19 minutes | published on 07/12/2012
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In this episode, I cover how to implement Pull to Refresh on UITableView using an easy open source project called SSPullToRefresh, by Sam Soffes. I cover the basics, as well as creating a custom loading panel, drawn with Core Graphics.

Intro to Storyboards

Episode #23 | 30 minutes | published on 07/06/2012
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In this episode I dive into Storyboards to lay out view controllers and transitions. I start out by converting a blank slate project to use storyboards, then move on to transitions, dynamic table view prototype cells, and cover static table views at the end. It's a slightly longer video than normal, but if you haven't gotten into storyboards yet, this one's for you.

Customizing UITabBar

Episode #22 | 12 minutes | published on 06/28/2012
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In this episode, I continue deconstructing Foursquare's custom UI. This time I focus on how to customize the UITabBar with the iOS 5 customization APIs.

Customizing UINavigationBar

Episode #21 | 21 minutes | published on 06/26/2012
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In this episode, I decompose the Foursquare UI and recreate the custom navigation bar, using the iOS 5 customization APIs. You'll see how to set a custom background image, a title view that you can tap on, a custom bar button item, and a custom back button style.

Dissecting Apps

Episode #20 | 13 minutes | published on 06/14/2012
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It can be helpful to draw inspiration from how existing applications are built. In this screencast, we'll look at how to extract & view images from iOS applications you've downloaded from the App Store. In addition, we'll use a proxy to intercept and inspect network traffic so you can see how application APIs behave.

Push Notifications

Episode #19 | 18 minutes | published on 06/07/2012
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In this episode, I set up a push notification server using Rails and Urban Airship, and show the steps required to handle push notifications in an application.

Adhoc Provisioning

Episode #18 | 13 minutes | published on 05/31/2012
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To distribute your application to a wider audience of beta testers, you'll use what is called "adhoc provisioning." In this episode, I create an adhoc build configuration, show how to create a distribution profile for adhoc builds, and how to manually put the build on a device using the iPhone Configuration Utility. Lastly, I cover how to use Test Flight to easily send out builds to be installed over the air.

App Provisioning

Episode #17 | 6 minutes | published on 05/24/2012
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In this episode, I'll walk you through how to set up your Apple development certificate and provisioning profile in order to deploy an application to your device.

Key Value Observing

Episode #16 | 14 minutes | published on 05/17/2012
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Key Value Observing (or KVO) is a powerful technique that you can use to be notified when a property changes. In this episode, we'll observe a property on a view to respond when it is updated. In addition, we'll look at the ramifications of KVO on your own classes.

HTTP Caching

Episode #15 | 9 minutes | published on 05/10/2012
Free Video
HTTP 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.

Tracking Download Progress

Episode #14 | 6 minutes | published on 05/03/2012
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In this episode, we'll use AFNetworking to track the progress of a file download and display it in a UIProgressView. Once we've downloaded a small movie, we'll play it using MPMoviePlayerViewController.

Setting up Jenkins

Episode #13 | 13 minutes | published on 04/26/2012
Free Video
In 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.