I have written a simple View to help anyone trying to isolate this issue that I discovered while trying to find the source of this warning. In my instance, I am using WKWebView to load specific sites that seems to trigger the warning when load(_ request: URLRequest) method is called.
import SwiftUI
import WebKit
struct WebView: UIViewRepresentable {
typealias UIViewType = WKWebView
let webView: WKWebView
func makeUIView(context: Context) -> WKWebView {
return self.webView
}
func updateUIView(_ uiView: WKWebView, context: Context) {
}
}
struct TestView: View {
let webView = WKWebView(frame: .zero)
var body: some View {
ZStack {
WebView(webView: self.webView)
Button("Test", action: {
Task.detached(priority: .background) {
await self.webView.load(URLRequest(url: URL(string: "https://www.apple.com")!))
}
})
}
}
}
Even when attaching the load(_ request: URLRequest) method to a background thread seems to cause the warning.
I am not expert in SwiftUI or the new Concurrency methods, but is there a 'proper' why that this method is supposed to be called off the main thread?
reesourcelabs
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