swift

How To Create an Expandable Table View in iOS

A common feature of almost all apps is the fact that they provide multiple view controllers to users to navigate and work with. Those view controllers can be used in many ways, such as to simply display some kind of information on-screen, or to gather complex data from user input. Creating new view controllers for…
A First Look at Contacts Framework in iOS 9

As every iOS release, the version 9, which is officially here for just a few weeks, presents new features and improvements to existing technologies for both users and developers. As we’ve all witnessed, there’s a number of new stuff that has been first-introduced in this version, but there are changes and updates to existing frameworks…
Beginner’s Guide: Using Social Framework and UIActivityViewController

So, you are just about to get finished with the new super-app of yours, or the one that your boss or a customer have asked you to make, and you realize that there’s one more important requirement, to make it capable of posting content to Facebook or Twitter. You are a breath away from the…
How To Create a Custom Search Bar Using UISearchController

Quite often it’s required from iOS applications to be capable of performing search in specific data that is displayed in a tableview. Undoubtably, most of developers have faced that situation, and the most usual approach to that is to use the default controls that the iOS SDK provides. Up to iOS 8, Apple was providing…
How to Integrate Google Sign In into Your iOS Apps

In my last tutorial we worked with the YouTube API, and through the demo application we managed to make requests to that specific Google API. Actually, we created an API key prior to any request, as that key was vital for every request that was about to return data back to our application. This time,…
Building a Video Search App with YouTube API

It’s a well-known fact that Google provides a big number of electronic products and services that can be used from the simplest end-user, to the most sophisticated one. But further than those who just use the Google services as they’re provided, there are people who need to have a different kind of access to them;…
Building a Custom Pull To Refresh Control for Your iOS Apps

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…
A Beginner’s Guide to In-App Purchase Programming in iOS 8

Many applications today provide the option to get extra content and features by making purchases through them. This technique, known as In-App Purchases, has become a fashion during the last few years, and it has proven to be quite profitable and efficient. Undoubtably, we all have downloaded apps from App Store that gave us the…
Building a QR Code Generator with Core Image Filters

One of the first tutorials I contributed here at Appcoda was a guide about how to create a QR code reader in iOS. At that time of course, the code of that tutorial was written in Objective-C, as Swift wasn’t still existing. Later in time, my friend Simon wrote a new one, this time made…
Working with CloudKit in iOS 8

One of the greatest tasks that developers have to perform, is to find and implement a proper way to store the application data. Undoubtably, there’s no application in any platform that doesn’t need to save some kind of data at some point. Depending on the nature of the application usually, the amount of data that…