Eu tenho uma extensão Today com um campo de texto. Quero usar o conteúdo do campo de texto como um URL para abrir um navegador no meu aplicativo.

Este é o meu TodayViewController.swift para o meu widget

import UIKit
import SafariServices
import NotificationCenter

// This extension to remove the white spaces from what pasteed   
extension String {
func replace(string:String, replacement:String) -> String {
    return self.replacingOccurrences(of: string, with: replacement,             
options: NSString.CompareOptions.literal, range: nil)
}

func removeWhitespace() -> String {
    return self.replace(string: " ", replacement: "")
}
}


class TodayViewController: UIViewController, NCWidgetProviding {

var clearNumber: String?

override func viewDidLoad() {
    super.viewDidLoad()

}


func widgetPerformUpdate(completionHandler: (@escaping (NCUpdateResult) -> Void)) {
    // Perform any setup necessary in order to update the view.

    // If an error is encountered, use NCUpdateResult.Failed
    // If there's no update required, use NCUpdateResult.NoData
    // If there's an update, use NCUpdateResult.NewData

    completionHandler(NCUpdateResult.newData)
}



@IBOutlet weak var textBox: UITextField!

@IBAction func clearNumber(_ sender: Any) {

    if textBox.hasText == true {
        textBox.text = ""
    }else{
        return
    }

}

@IBAction func pasteNumber(_ sender: Any) {

    if let myString = UIPasteboard.general.string {
        let pasteNumber = myString.removeWhitespace()
        textBox.insertText(pasteNumber)
    }else{
        return
    }
}

@IBAction func goButton(_ sender: Any) {

    let myAppUrl = URL(string: "main-screen:")!
    extensionContext?.open(myAppUrl, completionHandler: { (success) in
        if (!success) {
            print("error: failed to open app from Today Extension")
        }
    })
}