Lottie animation

LottieAnimation.swift

//
//  ViewController.swift
//  demoLottie
//
//  Created by Burak Furkan Asilturk on 8.03.2020.
//  Copyright © 2020 Burak Furkan Asilturk. All rights reserved.
//

import UIKit
import Lottie

class ViewController: UIViewController {
    let animationView = AnimationView()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        setAnimationView()
    }
    
    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
        playAnimation()
    }
    
}

// MARK: - Animations
extension ViewController {
    func playAnimation()  {
        
        animationView.play(fromProgress: 0,
                           toProgress: 1,
                           loopMode: LottieLoopMode.loop,
                           completion: { (finished) in
                            if finished {
                                print("Animation Complete")
                            } else {
                                print("Animation cancelled")
                            }
        })
    }
    func setAnimationView() {
        
        let animation = Animation.named("bookanimation")//, subdirectory: "qwe")
        
        animationView.animation = animation
        animationView.contentMode = .scaleAspectFit
        view.addSubview(animationView)
        
        view.translatesAutoresizingMaskIntoConstraints = false
        animationView.backgroundBehavior = .pauseAndRestore
        
        animationView.frame = self.view.frame
        animationView.contentMode = .scaleAspectFit
        
        // 
//        animationView.translatesAutoresizingMaskIntoConstraints = false
//        animationView.topAnchor.constraint(equalTo: view.layoutMarginsGuide.topAnchor).isActive = true
//        animationView.leadingAnchor.constraint(equalTo: view.leadingAnchor).isActive = true
//
//        animationView.trailingAnchor.constraint(equalTo: view.trailingAnchor).isActive = true
//        animationView.setContentCompressionResistancePriority(.fittingSizeLevel, for: .horizontal)
        
    }
}