OrchardNest

User interface is considered to be untestable. But this is not true. Before SwiftUI user interfaces could be tested. Here is why I think this is useful.

Shortcut to move focus to the source code editor.

How to scroll a collection view with defined animation duration and animation curve.

Useful Xcode shortcuts.

Xcode Behaviors can switch automatically what is shown in Xcode depending on the context.

How to define colors in Xcode.

In MVC your view code should not live within the view controller. Use a view subclass instead.

How to build a punch out custom transition between view controllers.

A developer menu can help to speed up development.

At WWDC 2020 Apple added a list layout to UICollectionView. This post explains how to write a unit tests that asserts that the cell is populated correctly.

Tabs in Xcode can be quite useful. Here is how I use them.

Sometimes during the development of an iOS app, we need to figure out, how many pixels are between two views. macOS has accessibility featues build in that help with this task.

Be careful when using CGAffineTransform with Auto Layout.

Add a gpx file to your Xcode project to simulate timed location changes in the iOS simulator.

How to build a timer that works on a background thread.

Breakpoints can do many useful things. Here is how to use breakpoints to populate the app with demo data while debugging.

How to add a breakpoint in Xcode that prints the currely visible view controller to the console.

Did you know that you can use regular expressions in search and replace in Xcode?

How to add support for dynamic type to regular UIButtos.

10 years after it's first appearance in the App Store I finally submitted an update for my first app.

It's quite easy to test if a view controller is presented on screen after some action. Here is how this works.

Starting with unit tests is not hard. Here are some easy tests you can add to your project right now.

UIStackViews are quite powerful. I wrote a Playground to play arround with it.

SwiftConf was great as always. Here are my sketch notes.

In this post you'll learn how to add a breakpoint in Xcode that adds a border to each subview in a view.

Use snapshot tests to verify the correctness of your user interface.

Sketch notes help be to stay focused during conference talks. Here are my sketch notes from UIKonf 2017.

I don't like the Interface Builder and here is why.