• On the last line add the +
• Enter the name of the group: App Transport Security
• Right click on the group and select Add Row
• Enter Allow Arbitrary Loads
• Set the value on the right to YES

    var cv_str = ""
    
    @IBOutlet weak var vv_label: UILabel!
    @IBAction func cf_lookup(_ sender: UIBarButtonItem) {
        let lv_url = URL(string: "http://ziptasticapi.com/48197")!
        cv_str = try! String(contentsOf: lv_url)        

        vv_label.text = cv_str
        vv_label.numberOfLines = 0
        vv_label.lineBreakMode = .byWordWrapping
        vv_label.frame.size.width = 240
        vv_label.sizeToFit()
    }

    @IBAction func cf_lookup(_ sender: UIBarButtonItem) {
        let lv_url = URL(string: "http://ziptasticapi.com/48197")!
        cv_str = try! String(contentsOf: lv_url)

        let lv_data = Data(cv_str.utf8)
        if let json = try! JSONSerialization.jsonObject(with: lv_data, options: .allowFragments) as? [String: Any] {
            let lv_state = json["state"] as? String ?? "N/A"
            let lv_city = json["city"] as? String ?? "N/A"
            cv_str = "\(cv_str) \n\n Address ->  \(lv_city), \(lv_state)"
        }
        
        vv_label.text = cv_str
        vv_label.numberOfLines = 0
        vv_label.lineBreakMode = .byWordWrapping
        vv_label.translatesAutoresizingMaskIntoConstraints = false
        vv_label.frame.size.width = 240
        vv_label.sizeToFit()
    }
	

    private BroadcastReceiver cv_btMonitor = null;
    private void cf_setupBTMonitor() {
        cv_btMonitor = new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
                if (intent.getAction().equals(
                        "android.bluetooth.device.action.ACL_CONNECTED")) {
                    try {
                        cv_is = cv_socket.getInputStream();
                        cv_os = cv_socket.getOutputStream();
                        cv_tvStatus.setText("Connect to " + cv_bd.getName() + " at " + cv_bd.getAddress());
                    } catch (Exception e) {
                        cf_disconnectEV3();
                        cv_is = null;
                        cv_os = null;
                    }
                }
                if (intent.getAction().equals(
                        "android.bluetooth.device.action.ACL_DISCONNECTED")) {
                    cv_tvStatus.setText("Connection is broken");
                }
            }
        };
    }

    @Override
    public void onResume() {
        super.onResume();
        registerReceiver(cv_btMonitor,new IntentFilter("android.bluetooth.device.action.ACL_CONNECTED"));
        registerReceiver(cv_btMonitor,new IntentFilter("android.bluetooth.device.action.ACL_DISCONNECTED"));
    }

    @Override
    public void onPause() {
        super.onPause();
        unregisterReceiver(cv_btMonitor);
    }

• Bluetooth socket
• Input and Output Streams

private void handleConnected() {
    try {
      is = socket.getInputStream();
      os = socket.getOutputStream();
      bConnected = true;
      btnConnect.setVisibility(View.GONE);
      btnDisconnect.setVisibility(View.VISIBLE);
    } catch (Exception e) {
      is = null;
      os = null;
      disconnectFromRobot(null);
} 

• Storyboard is a new IB file, which allows you to view the entire UI of your app in one place, including the transitions between the parts of your app and the triggers that initiated those transitions, so you can very conveniently get an overview of the app.
• Storyboards build on the familiar nib concept, and are edited in the same way, using Xcodeís Interface Builder.
• But unlike nibs, storyboards also allow you to work with multiple views, each attached to its own view controller, in a single visual workspace.
  

• A storyboard is a visual representation of the user interface of an iOS application, showing screens of content and the connections between those screens.
• A storyboard is composed of a sequence of scenes, each of which represents a view controller and its views; scenes are connected by segue objects, which represent a transition between two view controllers.
  
• A Scene Corresponds to a Single View Controller and Its Views
• A Segue Manages the Transition Between Two Scenes
  

• Select SE screen size
• Fit the image to the entire screen
• Select 'Add Missing Constraints'