Lottie Cache Medium Post

AnimationContainerView.swift

import UIKit
import Lottie

final class AnimationContainerView: UIView {
    // MARK: - Initializers
    override init(frame: CGRect) {
        super.init(frame: frame)
        setupView()
        setupConstraints()
    }
    
    required init?(coder: NSCoder) {
        super.init(coder: coder)
        assertionFailure("\(#function) not implemented")
    }
    
    // MARK: - Properties
    private let animationView = AnimationView()
    
    // MARK: - Private
    private func setupView() {
        animationView.contentMode = .center
        addSubview(animationView)
    }
    
    private func setupConstraints() {
        NSLayoutConstraint.activate(
            [animationView.topAnchor.constraint(equalTo: topAnchor),
             animationView.bottomAnchor.constraint(equalTo: bottomAnchor),
             animationView.trailingAnchor.constraint(equalTo: trailingAnchor),
             animationView.leadingAnchor.constraint(equalTo: leadingAnchor)
            ]
        )
    }
    
    /// 1
    
    // MARK: Public
    func apply(_ viewModel: URL) {
        animationView.setAnimation(from: viewModel) { (animationView) in
            animationView.loopMode = .loop
            animationView.play()
        }
    }
}