showSVGInWebView.swift

import UIKit
import WebKit

class ViewController: UIViewController {

    lazy var webView: WKWebView = {
        let mySVGImage = "<svg height=\"190\"><polygon points=\"100,10 40,180 190,60 10,60 160,180\" style=\"fill:lime;stroke:purple;stroke-width:5;fill-rule:evenodd;\"></svg>"
        let preferences = WKPreferences()
        preferences.javaScriptEnabled = false
        let configuration = WKWebViewConfiguration()
        configuration.preferences = preferences
        let wv = WKWebView(frame: .zero, configuration: configuration)
        wv.scrollView.isScrollEnabled = false
        wv.loadHTMLString(mySVGImage, baseURL: nil)
        return wv
    }()

    override func viewDidLoad() {
        super.viewDidLoad()
        view.addSubview(webView)
        webView.backgroundColor = .red
        NSLayoutConstraint.activate([
            webView.topAnchor.constraint(equalTo: view.topAnchor),
            webView.bottomAnchor.constraint(equalTo: view.bottomAnchor),
            webView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
            webView.trailingAnchor.constraint(equalTo: view.trailingAnchor)])
        
    }
}