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Among many of the powerful frameworks Apple released at this year’s WWDC, the Vision framework was one of them. With the Vision framework, you can easily implement computer vision techniques into your apps with no higher knowledge at all! With Vision, you can have your app perform a number of powerful tasks such as identifying faces and facial features (ex: smile, frown, left eyebrow, etc.), barco

Using Xcode Configuration (.xcconfig) to Manage Different Build Settings Ziad Tamim During the development lifecycle of a software project, you probably create different builds at various stages. At the early stage, there will be the one that conforms to your local configuration. When you are ready to move to the next stage, there is another build that will be utilized by your QA group to test the

iOS Simulator is an integral part of any iOS development process. We just can’t ignore it. New Simulator from Xcode 9 brings a lot of useful tricks, which could make you even more productive. Finally, Apple recalled they have Simulator out there! Comparing to previous modest updates, this one seems like a big deal. So let’s break this down and list all features I found in new iOS simulator (some t

Using JavaScript in Swift Projects: Building a Markdown to HTML Editor Gabriel Theodoropoulos For a long time I wanted to write a post about how Swift and JavaScript can be tied together, and lead eventually to more powerful and rich-featured apps. Being able to embed JavaScript code in iOS projects is not something that you hear for first time, but if you have never tried to do that then you shou

Building a Coffee Shop App with Swift, Foursquare API and Realm Reinder de Vries It’s often said that coders turn coffee into computer programs. Let’s take that to the next level by coding an app that shows you the nearest coffeeshop! In this coding guide, you’ll use the following techniques: Swift, Xcode and Interface Builder (Auto Layout, Constraints and Storyboards) Realm, the lightweight Core

One of the greatest improvements in the technology of Central Processing Units (CPUs) since their existence is the capability to contain multiple cores and therefore to run multiple threads, which means to serve more than one task at any given moment. Serial execution of tasks or fake multitasking belongs to the history since many years now, and if you are not that young and remember old computers

Hello, and welcome to the notifications in iOS 10 tutorial! Today, we will be talking about how to implement notifications in iOS 10. iOS 10 features a plethora of changes and additions to the notifications APIs, which includes a new, powerful notification request system based off of triggers, which we will talk more about shortly. The biggest change to notifications in iOS 10 is part of a framewo

Welcome! This article will teach you about a key topic in iOS: layers. You probably already know about views in iOS, but you might not know that every single view is backed by something called layer. Layers are part of the Core Animation framework. You may be wondering, “What’s the point? I never used a layer before so it might not be that important.” Whether you know it or not, your app uses laye

Share extensions, introduced in iOS 8, give users an easy and convenient way to share content with other entities, such as social sharing websites or upload services. Previously, sharing content usually entailed switching from one app to another, for example, while surfing in Safari, if you wanted to share a URL, you would copy it, switch to the app you wanted to save or share it in, perform the a

Action extensions allow users to transform content originating in a host app without leaving the app. You can, for example edit images, change the text format, change the text itself, e.t.c. At WWDC 2014, Apple showed us a demo of an Action extension that translated the text of a web page to another language without leaving Safari. Unlike the other extensions whose usage and purpose is clear, Acti

If you’ve ever built an application that required a webview to load web content in your native app, then you have probably experienced the frustrations that came with using UIWebView. UIWebView is quite limited and its performance lags behind that of Mobile Safari. JavaScript, which powers just about every web application, performs poorly in native mobile applications. However, all of this has cha

In iOS, scroll views are used to view content that won’t fit entirely on the screen. Scroll views have two main purposes: To let users drag the area of the content they want to display To let users zoom in to or out of the displayed content using the pinch gestures A common control used in iOS apps – UITableView – is a subclass of UIScrollView and provides a great way to view content that is large

This is a guest tutorial by Rumiya Murtazina. Some time ago, we’ve discussed with you how to integrate your iOS app with Parse and demonstrate how to build an Instagram-like app using the service. Not only can you use Parse to save data, the service provides a PFUser class to manage your app’s user information. In this tutorial, Rumiya will show you how to build a simple login app and walk you thr

How to Use iOS Charts API to Create Beautiful Charts in Swift Joyce Echessa Using charts to display data can help users understand the information more easily than they would if it were presented in a table, especially when dealing with a lot of data. With charts, you can easily see patterns in the data at a glance as opposed to reading through a whole table (or several tables) to get this informa

In a world that there are extremely so many mobile applications, there is no doubt that it’s tremendously difficult to create new ones that will attract users’ attention and will make their way among all others up to the top successfully. Definitely, one could say that a secret ingredient that turns simple apps to outstanding apps is the customization touches that development teams (developers and

iOS Building a QR Code Reader in Swift Simon Ng 9th Dec '14 71 So, what’s QR code? I believe most of you know what a QR code is. In case you haven’t heard of it, just take a look at the image below. That’s QR code. QR (short for Quick Response) code is a kind of 2-dimensional bar code developed by Denso. Originally designed for tracking parts in manufacturing, QR code has gained popularity in cons

Introduction to React Native: Building iOS Apps with JavaScript Joyce Echessa A few weeks ago Facebook open sourced React Native which is a framework that lets you build native iOS and Android (at the moment Android support is still under development) applications with JavaScript. We’ve seen frameworks like Titanium and PhoneGap which offer developers an option of building mobile applications usin

Introduction to Custom View Controller Transitions and Animations Jayven Nhan Looking at the built in apps from Apple on your iOS device, you will notice the various animated transitions as you move from one view to another for example the way view controllers are presented in master-detail views with a swipe that slides the detail view controller over the master view controller as seen in the Mes

Using Gesture Recognizers to Handle Pinch, Rotate, Pan, Swipe and Tap Gestures Gabriel Theodoropoulos Hello readers! iOS 8 is at the gates, as only a few weeks remain until the official release of the updated version of the operating system, and along with it, the release of the Swift programming language. So, as you understand, we are preparing to enter into a new era of the iOS SDK, where new wo

Prior to iOS 8, developers could provide custom keyboards or supplement the system keyboard with custom keys within only their application. With iOS 8, Apple has made it possible to create custom keyboards that will be able to be used system wide in other apps. You can now ship a custom keyboard with your app and users will be able to choose it as the keyboard to use for every app that requires te

In iOS 8, Apple introduces a new feature for UITableView known as Self Sizing Cells. To me, this is seriously one of the most exciting features for the new SDK. Prior to iOS 8, if you want to display dynamic content in table view with variable height, you would need to calculate the row height manually. Now with iOS 8, Self Sizing Cell provides a solution for displaying dynamic content. In brief,

Building an RSS Reader Using UISplitViewController and UIPopoverViewController Gabriel Theodoropoulos Just a few weeks ago Apple introduced the new iPhone devices, the iPhone 6 and iPhone 6 Plus. As we all saw, the screen sizes are bigger than all the older iPhone screens, meaning that any new applications must be build in that way so they work on all devices. Even more, if we consider the iPad sc

Swift was announced three weeks ago. Since then, I have been reading the Swift’s official guide and playing around with it in Xcode 6 beta. I started to love the simplicity and syntax of Swift. Along with my team, I am still studying the new language and see how it compares with Objective-C, a 30-year-old programming language. At the same time, we’re working really hard to see how we can teach beg

iOS Programming 101: How To Create Circular Profile Picture and Rounded Corner Image Simon Ng One of the changes in iOS 7 is that it favors the use of circular image over square image. You can find circular icons or images in stock apps such as Contacts and Phone. In this short post, we’ll explore the CALayer class and see how you can apply it to create circular image or image with rounded corner.

Editor’s note: Like some of the programming tutorials, you may find the search bar tutorial no longer works in Xcode 5 and iOS 7. We’ve rewritten the tutorial to make it compatible with the latest version of Xcode. On top of that, we enhance the tutorial with custom table cell. Enter the search bar tutorial. In most of the iOS apps using table view, it is common to have a search bar at the very to

iOS How to Use UIPageViewController to Build Tutorial Screens Rafael Garcia 16th Jun '13 123 Editor’s note: For the very first time you launch an app, you’ll probably find a series of tutorial screens to walk you through the basic features. It’s a common practice to explain how the app works. This week, we’ll show you how to build a similar type of tutorials by using UIPageViewController. The UIPa

iOS Working with UITableView in Xcode 5 Using Storyboard Simon Ng 5th Jan '14 67 When we first started the iOS programming course, we wrote a tutorial about UITableView and showed you how to create a simple table app using UITableView. This is one of our most popular tutorials. However, you may find it no longer works in Xcode 5. The latest version of Xcode promotes the use of Storyboard over Inte

We’ve covered UIPageViewController before. The original tutorial demonstrates how to create UIPageViewController using Interface Builder. To make it compatible with iOS 7 and Xcode 5, we completely rewrite the whole tutorial. In addition, we’ll use Storyboard to create UIPageViewController. For the very first time you launch an app, you’ll probably find a series of walkthrough (or tutorial) screen