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Displaying Episode 289 - 312 of 367 in total
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#79
In this episode I take a break from code to show off a powerful vector drawing program called Sketch. I show off some Sketch basics, create a simple (yet cheesy) cloud icon, and show how Sketch can be used to design mockups or full-fledged designs.
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#78
In part 2 we continue our Money example. We start by adding the ability to add 2 Moneys of the same currency, then extract the concept of Expressions in order to defer conversion until the very end.
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#77
In this episode I walk through Kent Beck's Money example from his book, Test Driven Development by example. We'll start off by setting up to use Specta & Expecta for our tests, and then drive out an implementation test-first. We'll see opportunities for refactoring and use our tests to guide us.
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#76
In this episode I cover a few techniques on how to pull information out of strings. We start of by using regular expressions via NSRegularExpression, then take a look at NSDataDetector, and wrap up by examining the lexical structure of sentences using NSLinguisticTagger.
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#75
In this episode I attempt to implement a custom scroll view behavior, where a table view can grow while scrolling to eventually encompass the entire screen. The implementation, while mostly functional, has drawbacks and the code is complicated. After taking a break, I approach the problem anew, and implement it much cleaner.
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#74
In this episode we cover how to authenticate with an OAuth2 provider for user authentication. As an example, we authenticate with Instagram using the Client Profile, which is most suited to a mobile application.
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#73
In this episode I show how you can self-sign a certificate in Charles to inspect and modify requests & responses to an API. Using a technique called SSL Pinning, we can prevent this type of man in the middle attack and make our applications more secure.
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#72
Choosing the appropriate collection for your use case is important, not only for ease of implementation but for performance. In this episode, we'll examine the performance characteristics of various collections such as NSSet, NSArray, NSOrderedSet, and NSDictionary.
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#71
In this episode I take a look at NSNumberFormatter, which is a useful class for getting various string representations of numbers. We then use this to add live number formatting to a UITextField.
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#70
Autolayout can be very powerful tool to provide layouts that are responsive to changes. In this episode we'll visit a case with UITableViewCells that makes using auto-layout somewhat frustrating, where constraints are applied to the cell itself instead of the cell's contentView.
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#69
In this episode we take a look at how to correctly detect & respond to underlying changes in an NSManagedObjectContext and insert, update, move, and remove UITableView rows with the proper animations.
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#68
In this episode we dive into the undocumented world of Xcode project templates. By studying the existing templates, we can learn how to make our own templates that better match our style or needs.
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#67
In this episode we take the shape file data we parsed in episode 66 and use it to draw outlines around US States. We do this using the MKPolygon overlay in combination with MKPolygonView, which allows us to fill & stroke the provided vertices.
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#66
In this episode I cover how to parse ESRI Shapefiles and their DBF attribute counterparts, in order to get a list of vertices of US State boundaries. This episode covers interacting with a C library (shapelib). The data extracted will be useful in the next episode.
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#65
In this short episode I quickly cover the Alcatraz Package Manager for Xcode, which allows you to easily install many user contributed plugins and color shemes in Xcode.
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#64
In this episode I continue our WhatsAround sample from Episode 63. Using the Foursquare API, we fetch coffee shops near the user's location and display a pin on the map for each using the MKAnnotation protocol.
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#63
In this episode I go over how I typically start new projects. I start off when an empty app template, do a bit of organization with groups to keep things tidy, introduce CocoaPods and a workspace, and wrap it up by setting up a map view controller using Storyboards on both the iPhone and the iPad. This project will be handy to use as a base for future episodes.
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#62
In this episode we continue with our example from last week's logging episode, and discuss how you can retrieve your logs out in the field. We use a pod called SSZipArchive to zip up the files as well as MFMailComposeViewController to enable testers to send us detailed logs of what is happening in the app.
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#61
In this episode we take a look at a fast & flexible alternative logging framework for iOS called Cocoa Lumberjack. We take a look at the various loggers that are available and how to write logs to a file.
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#60
We 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.
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#59
This 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.
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#58
In this episode I create a container view controller using the UIViewController containment APIs. The container view controller mimicks a style where the starting view controller fades into the background instead of sliding to the left.
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#57
In this episode we build on our Social App from episode 56 and add Facebook support. We cover setting up an Facebook application and the requisite permissions required to authenticate & fetch a user's friend list, all using the Social Framework in iOS 6.
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#56
In this episode we implement the Social framework in order to integrate with Twitter. Using the provided framework, we issue an authenticated API call to get a list of Twitter followers for a given account, as well as compose a tweet with the new SLComposeViewController.