Do not nest Content_Preview nor WebView into ContentView.
//
// ContentView.swift
//
import SwiftUI
import WebKit
import UIKit
// ** DO NOT NEST **
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
struct ContentView: View {
let webView = WebView(request: URLRequest(url: URL(string: "https://www.apple.com")!))
var body: some View {
VStack {
webView
HStack {
Button(action: {
self.webView.goBack()
}) {
Image(systemName: "arrowshape.left")
.font(.title)
.foregroundColor(.blue)
.padding()
}
Spacer()
Button(action: {
self.webView.goHome()
}) {
Image(systemName: "house.fill")
.font(.title)
.foregroundColor(.blue)
.padding()
}
Spacer()
Button(action: {
self.webView.goForward()
}) {
Image(systemName: "arrowshape.right")
.font(.title)
.foregroundColor(.blue)
.padding()
}
}
}
}
}
// ** DO NOT NEST **
struct WebView: UIViewRepresentable {
let request: URLRequest
private var webView: WKWebView?
init (request: URLRequest) {
self.webView = WKWebView()
self.request = request
}
func makeUIView(context: Context) -> WKWebView {
return webView!
}
func updateUIView(_ uiView: WKWebView, context: Context) {
uiView.load(request)
}
func goBack() {
webView?.goBack()
}
func goForward() {
webView?.goForward()
}
func goHome() {
webView?.load(request)
}
}
Topic:
Developer Tools & Services
SubTopic:
Xcode
Tags: