Give your simulator superpowers

RocketSim: An Essential Developer Tool
as recommended by Apple
on Swift

Printing data requests using a custom URLProtocol

Almost all apps contain some kind of data requests. Printing data requests could sometimes be handy for debugging purposes. This can be done fairly easy by using a custom URLProtocol. Creating a custom URLProtocol A custom URLProtocol is needed to print out the data requests. A custom implementation of URLProtocol including the canInit method is … →

 
on Swift

Controlling Progress children by adding remove

Controlling Progress children by default makes it only easy to add children to a Progress instance, but removing is not possible by default. This could have been useful when you want to use a single Progress instance which can have different children over time. Using a custom class MutableProgress makes this possible. Controlling Progress children … →

 
on Swift

Share Extension UI Tests written in Swift

UI Tests are a great tool to validate your application. It is easy to create them for your main application, but it might be harder to create a UI test for your share extension. This can be just as easy as your main application with some simple steps. UI Test steps A UI test for … →

 
on Workflow

Fixing crashes with Firebase Crashlytics

Using Firebase Crashlytics can help you to solve your crashes faster. In this example we’re going to dive into a crash happening in the WeTransfer iOS app I’m personally working for. Diving into the details When a crash appears on your dashboard, first look at the stats (see the image above). This immediately points us … →

 
on Swift

Updating to Swift 4.1

Swift 4.1 is released on the 29th of March and will be shipped with Xcode 9.3. Although it’s a minor language release, it did bring some improvements. How to get started? First of all, Swift 4.1 is source compatible with Swift 4.0. So no need to rush! Before you start, get yourself up to date … →

 
on Optimization

How to get iOS reviews with 4+ stars for your app

Last May the new Buienradar app went live. With over 2 million users each month, it’s one of the biggest dutch apps. This brings the possibility to create campaigns targeted on a large group of users. A popular campaign in apps is convincing users to review your app. We did have a successful campaign with … →

 
on Swift

Optional protocol methods in Swift

In Swift it’s kind of unsupported to implemented optional protocol methods. You can, which is ugly, use the @objc syntax: @objc protocol MyProtocol { optional func doSomething(); } class MyClass : MyProtocol { // no error } Another disadvantage here is that structs are unsupported, as you’re bridging for Objc. Using protocol extensions to create … →

 
on WWDC

WWDC First timers tips collection top 10

Again, I’m very happy to be one of the few developers to visit WWDC this year. I’m a first timer and expecting a lot from this trip. I’ll probably meet a lot developers, hear to much cool stuff at the sessions and have to much fun on parties resulting in a little time for sleep. … →

 
on Swift

The start of a new blog

Hi there! After thinking a lot of starting my own blog, I’ve finally made the decision to create one! As iOS developer for my job I found myself experiencing a lot of problems, writing solutions and figuring out what’s the best way to create this UI. Many times these are things to share with others, but until … →