iOS and Cocoa goodies

The article presenting effective tips on mobile typography helping to create compelling user interface design with the functional copy elements for positive UX.

If you’ve ever had to move your iPad from one hand to the other just to tap a button you couldn’t reach, then you may have already guessed why we began this study in our UX lab. Our Mail.Ru Group’s…

In this Unreal Engine 4 UI tutorial, you will learn how to create, display and update a HUD.

In this Unreal Engine 4 materials tutorial, you will learn how to modify textures in the material editor, create material instances and update material instances during gameplay.

RCMessageKit is a light-weight and easy-to-use Chat user interface framework for iOS

I remember the day I first ran a command in Terminal. At that moment, I truly felt like a bonafide programmer. With my fellow students huddled around my laptop at college, I swiftly pecked out a…

Psychology plays a big part in a user’s experience with an application. By understanding how our designs are perceived, we can make adjustments so that the apps we create are more effective in…

Wondering which WWDC 2017 videos are the best for developers to watch? Check out our recommended Top 10!

Another fascinating WWDC is behind us. This year we again witnessed a whole host of newly presented features and refinements to the Swift language, now already in its fourth installment. It's great to see how the language has progressed over the last couple years. Unfortunately, since binary compatibility has been delayed further (at least there's a Manifesto now), and module stability is still even further away, we are unable to use Swift in our binary PSPDFKit SDK. However, we do use it for our tests and in PDF Viewer.

If you write a new app in 2017, you should use Swift. Though there may still be cases where you need to work with Objective-C. Perhaps you are dealing with a legacy application, or you might have other reasons why Swift cannot be used. For example, if your app heavily inter-ops with C++ (like ours does). In that case, you might have been disappointed on the relatively little attention that the other main Apple programming language received recently. But fear not, PSPDFKit is coming to the rescue. Here are some of our favorite tips on how to improve Objective-C on your own.

This is a before after comparision slider. Easy to use just change the custom class of UIView

Announcements from Apple's WWDC 2017 event covered iOS 11, the new App Store, the new Apple HomePod, advancements with Siri, and more.

Core ML in iOS 11 Provides Machine Learning Models


Apple introduced machine learning in iOS 10 and has extended that functionality with Core ML in iOS 11. The power of Apple's approach with Core ML is that you really get to take advantage of the device's CPU and GPU. Comparatively, Google's TensorFlow was designed to run in the cloud. TensorFlow Lite, announced at Google I/O recently, runs on devices as an alternative solution. Since Apple from the start has focused on having CoreML run specifically on their devices with products like Siri, Camera, and QuickType, there may be a near-term advantage. It's all still early in the machine learning age, especially when it comes to apps.

As the Nerds reflect on the WWDC 2017 Keynote, we're most interested in the continued refinements, Xcode 9 and productivity gains.

There’s been some discussion recently in the iOS community about pros and cons (OK, mostly cons) of using third-party dependencies. Many arguments I saw were rather generic — grouping all third-party libraries into one basket. As with most things, though, it’s not that simple. So, let’s try to focus on a single case today: should we avoid using third-party UI libraries?

The sign-up screen on mobile applications — we love it, we hate it, and we definitely love to hate it. If done right, it can be the trigger to a massive user retention. If done poorly it can have the…

A brief overview for how to light a scene in Unity, with considerations on performance.

Here is the customized control to pick any address from Google Map just like UBER or LYFT Apps You can get complete Address, Cit, Country, Latitude and Longitude.

Learn how to create a powerful, flexible, and re-useable interaction system for your HTC Vive games in Unity!

Since iOS 8, we’ve been able to ship our Composer as an extension which allows users to share from their favorite apps that make use of UIActivityViewController. We were super excited to be a…

In this article, we’ll examine five basic navigation patterns for mobile apps and describe the strengths and weaknesses of each of them.

The App Store Optimization Stack is a cheat sheet for mobile marketers that want to better understand what levers they can pull to improve their app store presence.

We’re excited to introduce our latest book, Advanced Apple Debugging & Reverse Engineering. See what’s inside, and grab a pre-order discount too!

Generate the full icon set required for Apple App Store and Google Play Store submissions.