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UISearchController Tutorial: Getting Started

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https://www.raywenderlich.com/113772/uisearchcontroller-tutorial ote : Updated for Xcode 7.3, iOS 9.3, and Swift 2.2 on 04-03-2016 Update note:   This tutorial was updated to iOS 9 and Swift 2 by Andy Pereira.   Original post   by Tutorial Team Member Nicolas Martin. If your app displays large datasets, scrolling through massive lists becomes slow and frustrating. In that case, it’s vitally important to allow users to search for specific items. Lucky for you, UIKit includes   UISearchBar   which seamlessly integrates with   UITableView   and allows for quick, responsive filtering of information. In this   UISearchController   tutorial, you’ll build a searchable Candy app which is based on a standard table view. You’ll add table view search capability, including dynamic filtering, and add an optional scope bar, all while taking advantage of   UISearchController , added in iOS 8. In the end, you’ll know how to make your apps much...
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CALayer Tutorial for iOS: Getting Started

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Update note:  This tutorial has been updated to iOS 11, Swift 4, and Xcode 9 by  Michael Ciurus . The original tutorial was written by  Scott Gardner . As you probably know, everything you see in an iOS app is a view. There’s button views, table views, slider views, and even parent views that contain other views. But what you might not know is that each view in iOS is backed by another class called a layer – a  CALayer  to be specific. In this article, you’ll learn what a  CALayer  is and how it works. You’ll also see 10 examples of using  CALayer s for cool effects, like shapes, gradients, and even particle systems. This article assumes you’re familiar with the basics of iOS app development and Swift, including constructing your UI with storyboards. Note : If you’re not quite there, no worries. You’ll be happy to know we have quite a few tutorials and books on the subject, such as  Learn to Code iOS Apps with Swift  and...
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Create a gradient color view in iOS using Swift 3 and XCode 8

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What is Gradient Gradients and Colors. Anyone who has remotely worked on or had heard about computer graphics would know what a gradient is. For the unaware masses, a gradient or a ramp is a set of colors used to fill a particular region with minimal boundaries visible. We know it is quite difficult to define gradient in words and even more difficult to understand what is it just by reading. Let us shoot you an image of what a gradient is and that’s what we will focus on doing today Environment set-up Create a new XCode project. We have used XCode 8 for the demonstration but you are free to use a version of your preference. We will code using Swift 3 and we believe that Swift 2 and Objective-C might have minor syntactical changes. In case you face an issue, please do leave a comment below. The Task We are going to change the background of the primary view controller to a gradient color. We are going to use the same colors that the image above sports. For refere...
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