SearchViewLayout.swift

class SearchView: UIView {

    // MARK: Properties
    
    ...
        
    // MARK: Setup
    
    func setup() {
  
        // ...
    
        layout: do {
            addSubview(backgroundButton)
            addSubview(foregroundButton)
            
            backgroundButton.translatesAutoresizingMaskIntoConstraints = false
            foregroundButton.translatesAutoresizingMaskIntoConstraints = false
            
            NSLayoutConstraint.activate([
                backgroundButton.leadingAnchor.constraint(equalTo: leadingAnchor),
                backgroundButton.topAnchor.constraint(equalTo: topAnchor),
                backgroundButton.trailingAnchor.constraint(equalTo: trailingAnchor),
                backgroundButton.bottomAnchor.constraint(equalTo: bottomAnchor),
                
                foregroundButton.leftAnchor.constraint(equalTo: backgroundButton.leftAnchor),
                foregroundButton.topAnchor.constraint(equalTo: backgroundButton.topAnchor),
                foregroundButton.rightAnchor.constraint(equalTo: backgroundButton.rightAnchor),
                foregroundButton.bottomAnchor.constraint(equalTo: backgroundButton.bottomAnchor),
            ])
        }
    }
}