UIKit - Artur Gruchała

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

6 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

RxSwift course - RxCocoa and UI binding

7 months ago 4 min read Course RxSwift Swift UIKit

RxCocoa brings UIKit controls and views to the reactive world. We can access them with .rx on view object. Neary all relevant properties of views have their reactive wrapper: alpha, background color, frame,

Most common Swift interview questions

a year ago 1 min read Swift Foundation Misc UIKit

Here's my first compilation of the most common Swift and iOS interview questions. There'll be more, so follow me on Twitter [https://twitter.com/GruchalaArtur] & stay up to date. Have fun and try

Filtering camera preview with Metal

a year ago 4 min read MetalKit CoreImage Metal Swift UIKit

In this post, we will use all knowledge acquired from the metal filtering lesson to filter camera preview on iPhone. I have created a starter project [https://github.com/agruchala/MetalCameraDemo]. It will

Lighting fast rendering with Metal

a year ago 6 min read MetalKit CoreImage Metal Swift UIKit

In the previous post [https://arturgruchala.com/image-processing-in-swift/], we touched image processing and rendering. We made UIImage from CIImage with two filtering effects. Dynamic filtering This time we will create a simple app