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Building a WebView

Once you have a Portal instance and you have generated a wallet, you can now build a web view to interact with dApps using the Portal wallet.
In the example below, we have a button that initializes Portal's WebViewController and adds it as a child view controller.
import PortalSwift
class ViewController: UIViewController {
public var portal: Portal?
@IBAction func handleWebview(_ sender: UIButton) {
let webViewController = WebViewController(
portal: portal!,
url: URL(string: "")!,
onError: { (result: Result<Any>) -> Void in
// ❌ Handle any errors from the web view.
// Install the WebViewController as a child view controller.
let webViewControllerView = webViewController.view!
webViewControllerView.translatesAutoresizingMaskIntoConstraints = false
webViewControllerView.topAnchor.constraint(equalTo: view.topAnchor).isActive = true
webViewControllerView.bottomAnchor.constraint(equalTo: view.bottomAnchor).isActive = true
webViewControllerView.leftAnchor.constraint(equalTo: view.leftAnchor).isActive = true
webViewControllerView.rightAnchor.constraint(equalTo: view.rightAnchor).isActive = true
webViewController.didMove(toParent: self)
// ✅ The web view is now running! 🙌
And thats it! Remember that you will need a portal instance to start the web view and you will also need to initialize Portal with autoApprove: true if you want the web view to auto-approve transactions.
Next, let's explore how to use Portal's Swaps integration to perform swaps directly from your iOS app.