Aymenworks

override func layoutSubviews() {
    super.layoutSubviews()

    foregroundButton.layer.cornerRadius = foregroundButton.bounds.height / 2.0
}

Aymenworks

switch progress {
  case AnimationState.full.rawValue...:
      let newProgress = (progress - AnimationState.full.rawValue) / (AnimationState.finalBigSize.rawValue - AnimationState.full.rawValue)
      let scale = 1 + (maxScale-1) * newProgress
      foregroundButton.transform = CGAffineTransform(scaleX: scale, y: scale)

  case ...AnimationState.full.rawValue:
      foregroundButton.transform = .identity
  default:
      print("surprise")

Aymenworks

func update(progress: CGFloat) {
    let shiftedProgress = (progress - AnimationState.start.rawValue) / (AnimationState.full.rawValue - AnimationState.start.rawValue)
    let height: CGFloat = foregroundButton.bounds.height * shiftedProgress
    let rect = CGRect(x: 0, y: foregroundButton.bounds.height - height, width: foregroundButton.bounds.width, height: height)
    let path = UIBezierPath(rect: rect).cgPath
    shapeLayer.path = path
}

Aymenworks

    // ...
        
    
    func setup() {
    
        // ...

        layout: do {
            addSubview(backgroundButton)

Aymenworks

class SearchView: UIView {

    // MARK: Properties
    
    // ...
    
    struct Colors {
        static let backgroundButtonBackgroundColor = UIColor.clear
        static let backgroundButtonTintColor = #colorLiteral(red: 0.6000000238, green: 0.6000000238, blue: 0.6000000238, alpha: 1)
        static let foregroundButtonBackgroundColor = #colorLiteral(red: 1, green: 0.8, blue: 0, alpha: 1)

Aymenworks

class SearchView: UIView {

    // MARK: Properties
    
    ...
        
    // MARK: Setup
    
    func setup() {
  

Aymenworks

class SearchView: UIView {

    // MARK: Properties
    
    ...
    
    struct Colors {
        static let backgroundButtonBackgroundColor = UIColor.clear
        static let backgroundButtonTintColor = #colorLiteral(red: 0.6000000238, green: 0.6000000238, blue: 0.6000000238, alpha: 1)
        static let foregroundButtonBackgroundColor = #colorLiteral(red: 1, green: 0.8, blue: 0, alpha: 1)

Aymenworks

//  We replace
let rect = CGRect(x: 0, y: 0, width: foregroundButton.bounds.width, height: height)
// by 
let rect = CGRect(x: 0, y: foregroundButton.bounds.height - height, width: foregroundButton.bounds.width, height: height)

Aymenworks

func update(progress: CGFloat) {
    let height: CGFloat = foregroundButton.bounds.height * progress
    let rect = CGRect(x: 0, y: 0, width: foregroundButton.bounds.width, height: height)
    let path = UIBezierPath(rect: rect).cgPath
    shapeLayer.path = path
}

Aymenworks

class SearchView: UIView {

    // MARK: Properties
    
    enum AnimationState: CGFloat {
        case start = 0.0, full = 0.7, finalBigSize = 1
    }
}