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05/17 - The Best iOS Development Links

The best iOS development links from May 2017. Swift What’s new in Swift 4.0: learn what’s changed and why.: “Swift 4.0 is a major new release for everyone’s favorite app development language, and introduces a variety of features that let us write simpler, safer code.

Passing Data Between View Controllers

Passing data between view controllers is a very common task. Depending on the circumstances, there are several ways to accomplish this.  Hint: This post is using Swift 3, iOS 10 and Xcode 8.2.1 Generally speaking, there are two cases: Passing data to the next view controller, or passing

March 2017: The Current State Of Swift

In February 2016, I published a post that discussed the state of Swift at that date. Time to look what has changed since then. Let’s start by talking about Swift: Swift It’s very impressive how quickly Swift has grown: Since its announcement in 2014, it has become the

UIKeyCommand: Defining Keyboard Shortcuts

In this article we will take a look at UIKeyCommand, which allows you to define custom keyboard shortcuts in your apps. I’m really a big fan of Apple’s smart keyboard. For example, these three shortcuts are always available and will make your workflow much quicker: 1. CMD+tab:

UITableView - Tutorial For Beginners

UITableView is one of the most important user interface components on iOS. In this tutorial you will learn all the basics you need to know. Hint: This post is using iOS 10, Xcode 8.2.1 and Swift 3 On the one hand UITabelView is a very complex component, but

02/17 - The Best iOS Development Links

The best iOS development links from February 2017. News The second month of the year is already over! And February was an interesting month for iOS developers. The most interesting news is of course the announcement of WWDC 2017. Furthermore, Apple has announced the holiday quarter results, and they were

Android: Toast

On Android, a toast is used to display a short notice. For example, this could be the confirmation that an action has been completed successfully, like adding a favorite.  Let’s start by displaying a simple toast. You create a toast by using the static method makeText of the Toast

3D Touch: Peek And Pop

Besides quick actions, peek and pop is another very interesting 3D Touch feature. By using it you can quickly preview content, for example emails or websites. Hint: This post is using Swift 3, Xcode 8.2.1 and iOS 10 Let’s take a look at an example, that isn’

The 10 Best Productivity Apps on iOS

iOS has become an operating system that is not only great for consuming content, but for productivity as well. Of course you need the right apps though. Here’s a list of my favorite productivity apps. Ulysses Ulysses is THE app for writers. The iCloud sync works perfectly. And since

Apple announces WWDC 2017

Today, Apple has announced WWDC 2017. It will take place from June 5 – 9 in San Jose. The announcement today is a little bit surprising because the WWDC used to be announced later in the year. Last year, this happened two months later in April. Apple says: Apple’s developer

My experiences using Apple's Smart Keyboard

I have been using Apple’s Smart Keyboard for the iPad Pro 9.7-inch intensively over the last few days and I’m quite surprised how useful it is. In fact, the iPad Pro has become a completely new device for me. The Smart Keyboard is embedded into a cover,

3D Touch Quick Actions

Quick actions have been introduced with the iPhone 6S. When you force touch an app icon, a menu will be presented. You can use it, to quickly access a certain part of the app or to trigger an action. Hint: This post is using Swift 3, iOS 10 and Xcode

UITableView: Automatic Row Height

UITableView is definitely one of the most important UI components, and you can find it in almost every app. Very often the content is dynamic – and so is the length of the content. In this case you need table view cells, that have different sizes. You could calculate these sizes

01/17 - The Best iOS Development Links

The best iOS development links from January 2017. Swift Accidental Tech Podcast: 205: People Don’t Use the Weird Parts: A very interesting interview with Chris Lattner. Unsafe Swift: Using Pointers And Interacting With C: “In this tutorial you will learn how to use unsafe Swift to directly access memory

Two Useful Log Messages

Logging is a very useful method for debugging an app. Most times, though, too much information is logged. But there are some very useful things you should log. Let’s take a look at two of them. Hint: This post is using Xcode 8.2.1, iOS 10 and Swift

An Introduction To Extensions

iOS has always been a very secure operating system. In order to achieve that, apps are running in its own container. In the beginning of the iPhone it wasn’t possible for an app  to communicate with other apps at all. Luckily, this has changed over the years. In iOS

Xcode: Frameworks

By using frameworks you can share code between multiple projects – a huge productivity boost! In this post you will learn how you can create a framework and how you can use it in your projects. Hint: This post is using Xcode 8.2.1 and Swift 3.0.2 Creating

About The Importance Of Building Momentum

We all have big goals we want to achieve. Most of the time we lack motivation though. One of the biggest success factors is to build so-called momentum. What is momentum? Let’s take a look at the Wikipedia definition: In classical mechanics, […] momentum […] is the product of the mass

Using Older Xcode Versions With Newer iOS Versions

Generally speaking, it’s a good idea to use always the newest Xcode version. However, in reality there are situations where you still have to use an older Xcode version. In this situation it’s not possible to debug on a device that has a new iOS version installed. Fortunately,

Xcode: Markup For Playgrounds

In this post you will learn how to use markup for Playgrounds. Hint: This post uses Xcode 8.1 and Swift 3. Let’s start by looking at how the markup language works. Just start a new Playground and write the following lines: /*: # Title Text */ var i: Int = 0 Now

Top Ten Most Popular Posts Of 2016

The beginning of the year is a good time to look back, so I put together a list of the ten most popular posts of 2016. The ranking is based on the number of page views. #1: Network Link Conditioner In this post we will discuss how you can simulate

10 New Year's Resolution Ideas For iOS Developer

The new year has started already, but it’s never not too late to set ambitious goals. Here’s a list of 10 new year’s resolution ideas for iOS developers. #1: Stay positive. Always. Period. There’s always a lot of hope for the new year. And yes, I’

12/16 - The Best iOS Development Links

The best iOS development links from December 2016. Swift Optionals and String Interpolation: How to display an optional value in the user interface or the console in a nice way. Swift Algorithm Club: Swift Stack Data Structure: “Learn how to implement a Swift stack, including push, peek, and pop, and

11/16 - The Best iOS Development Links

The best iOS development links from November 2016. Swift Yammer iOS App ported to Swift 3: Since Xcode 8.2 is the last release that will support Swift 2.3, code written before Swift 3 has to be converted sooner or later. Before doing that, you should read this article,

Xcode 8: Mixing Auto Layout and Autoresizing Masks

In Xcode 8 you use both auto layout and autoresizing masks in one layout file, which can make your work much easier. Hint: This post is using Swift 3, iOS 10 and Xcode 8 Let’s face it: Auto layout is great, but it also difficult to use in some