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May 25, 2017

How to Build CSS-only Smart Layouts with Flexbox

Flexible box, or Flexbox in short, is a set of properties in CSS introduced in 2009 to provide a new, exceptional layout system. The Flexbox module is identified as a part of the third version of CSS (CSS3).

You are probably already using many of the new properties in CSS3, such as box-shadow, border-radius, background gradients, and so on. However, Flexbox has yet to see the widespread adoption that it deserves. This may be because of all the breaking changes it has suffered over the years, or because it is only partially supported in Internet Explorer 10, or just because Flexbox is a whole ecosystem while previous paradigms have been predominantly based on single, [...]

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May 18, 2017

Demystifying iOS 9 Spotlight Search for Developers

There are three search points built into iOS: Siri, Spotlight Search, and Safari search. Siri, one of the most iconic features of iOS, is something that most iPhone users are already familiar with. But many people are not aware of Spotlight search – something that has been an integral part of iOS long before Siri existed. Spotlight Search can be accessed when you slide the home screen downwards, or new to iOS 9, swipe right from your personal home screen. This reveals a search bar at the top of the screen.

The focus of this search tool in iOS 8 and earlier was searching the phone itself, so its results page lists apps that are on your phone, as well as emails, messages, [...]

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May 1, 2017

Swift Tutorial: An Introduction to the MVVM Design Pattern

BY DINO BARTOŠAK – FREELANCE SOFTWARE ENGINEER @ TOPTAL #iOS #MVVM #Swift #Tutorial

So you’re starting a new iOS project, you received from the designer all the needed .pdf and .sketch documents, and you already have a vision about how you’ll build this new app.

You start transferring UI screens from the designer’s sketches into your ViewController .swift, .xib and .storyboard files.

UITextField here, UITableView there, a few more UILabels and a pinch of UIButtons. IBOutlets and IBActions are also included. All good, we are still in the UI zone.

However, it’s time to do something with all these UI elements; UIButtons will receive finger touches, [...]

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Apr 4, 2017

How to Build an Infinite Runner on iOS: Cocos2D, Automation, and More

BY ALEXEY ZANKEVICH – IOS ENGINEER @ TOPTAL #Box2D #Chipmunk #Cocos2D #iOS

Developing iOS games can be an enriching experience in terms of both personal and financial growth. Earlier this year, I deployed a Cocos2D-based game, Bee Race, to the App Store. Its gameplay is simple: an infinite runner in which players (in this case, bees) collect points and avoid obstacles. See here for a demo.

In this tutorial, I’ll explain the process behind developing games for iOS, from Cocos2D through to publishing. For reference, here are a short table-of-contents:

Sprites and physical objects A brief introduction to Cocos2D Using Cocos2D with storyboards Gameplay and (brief) [...]
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