Artur Gruchała

I started learning iOS development when Swift was introduced. Since then I've tried Xamarin, Flutter, and React Native. Nothing is better than native code:)

Creating your own file template in Xcode

4 days ago 3 min read Xcode Swift

A couple of years back I was working on a project structured with the MVVM pattern. We chose to structure our view models "Kickstarter style" with separate protocols for "Inputs" and "Outputs". In

App security - prevent debugger attach

2 months ago 1 min read

Our applications aggregate more and more private data that belong to users. We should make everything we can to make out users secure and safe. The first step to make the app more

Preparing custom view for Interface Builder - @IBDesignable and @IBInspectable

3 months ago 2 min read Swift UIKit Xcode XIB

If you use Storyboards or Xibs, there is added benefit when the preview of your custom view is rendered right in Xcode. We can achieve that using @IBDesignable and @IBInspectable. @IBInspectable make property

Cleaner inits - ExpressibleBy... protocols

4 months ago 1 min read Swift Foundation Misc

Sometimes structures or classes we create in code can be easily expressed by built-in Swift types. Consider the following code: struct Person { let name: String } let ana = Person(name: "Ana")I created simple

RxSwift course - adding RxSwift extensions to existing code - part 2

4 months ago 2 min read RxSwift Swift Course

To finish our conversion from part 1, we will need all changes, available here. Collection viewRight now we are using old-fashioned collection view implementation, using delegate and data source. I'll simplify this code