Cells are reusable views. When they leave the visible screen they may be reused by the parent view for another sibling element. For this reason, we need to have some considerations in mind.

• We build the view in the setup method, as always.
  • We add subviews, add constraints, etc...
  • This method should only run once, from the init**.**
• We provide a configure method where we pass a model to finish the view.
  • Before adding stuff, we should clean any previous state.
  • If the view has many "states" (i.e. different background colour, some hidden view) restore it to a common base state.
  • If the view has a DisposeBag, re-assign it, so we remove previous callbacks or effects.
  • This method can run more than once, from outside.

final class SomeCell: UITableViewCell {
	private var disposer = DisposeBag()

	private let someView = UIView().apply { ... }

	// MARK: Setup

	private func setup() {
		addSubview(someView)

		someView.snp.makeConstraints { ... }
	}

	// MARK: Configure

	public func configure(with model: Int) {
		disposer = DisposeBag()

		someView.backgroundColor = .clear

		switch model {
		case 0:
			someView.backgroundColor = .green

		case 1:
			someView.backgroundColor = .blue

		default:
			break
		}
	}
}