Swift

Building the interface

To be able view the connection status of the app you will need to add a UILabel element to the screen. Open ViewController.swift and add the label programmatically by replacing the entire file content with the following:

import UIKit
import NexmoClient

class ViewController: UIViewController {

    let connectionStatusLabel = UILabel()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view.
        
        connectionStatusLabel.text = "Unknown"
        connectionStatusLabel.textAlignment = .center
        connectionStatusLabel.translatesAutoresizingMaskIntoConstraints = false
        
        view.addSubview(connectionStatusLabel)
        view.addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "H:|-20-[label]-20-|",
                                                           options: [], metrics: nil, views: ["label" : connectionStatusLabel]))
        view.addConstraints(NSLayoutConstraint.constraints(withVisualFormat: "V:|-80-[label(20)]",
                                                           options: [], metrics: nil, views: ["label" : connectionStatusLabel]))
    }
}