Add the offerwall to your app

// Add the androidx.browser:browser library to your dependencies.
import androidx.browser.customtabs.CustomTabsIntent

fun openOfferwall(context: Context, placementId: String, userId: String) {
    val url = Uri.parse("https://wall.offerzy.io/$placementId")
        .buildUpon()
        .appendQueryParameter("user_id", userId)
        .build()
    CustomTabsIntent.Builder().build().launchUrl(context, url)
}

import SafariServices

func openOfferwall(from viewController: UIViewController, placementId: String, userId: String) {
    var components = URLComponents(string: "https://wall.offerzy.io/\(placementId)")!
    components.queryItems = [URLQueryItem(name: "user_id", value: userId)]
    viewController.present(SFSafariViewController(url: components.url!), animated: true)
}

webView.settings.javaScriptEnabled = true
webView.settings.domStorageEnabled = true
webView.webViewClient = object : WebViewClient() {
    override fun shouldOverrideUrlLoading(view: WebView, request: WebResourceRequest): Boolean {
        if (request.url.host == "wall.offerzy.io") return false // stay in the WebView
        try {
            view.context.startActivity(Intent(Intent.ACTION_VIEW, request.url))
        } catch (e: ActivityNotFoundException) {
            // No app can open this link.
        }
        return true
    }
}
webView.loadUrl(offerwallUrl)

// Set webView.navigationDelegate and webView.uiDelegate to this object.
func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction,
             decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {
    guard let url = navigationAction.request.url, url.host != "wall.offerzy.io" else {
        return decisionHandler(.allow) // stay in the WebView
    }
    UIApplication.shared.open(url)
    decisionHandler(.cancel)
}

// Links that open a new window (target="_blank") arrive here instead.
func webView(_ webView: WKWebView, createWebViewWith configuration: WKWebViewConfiguration,
             for navigationAction: WKNavigationAction, windowFeatures: WKWindowFeatures) -> WKWebView? {
    if let url = navigationAction.request.url { UIApplication.shared.open(url) }
    return nil
}