Pass the url from the marker into the controller - swift

Question

I'm doing the app for viewing IP cameras and want to add cameras to the map so you can click on the desired marker and go to see the desired camera. I have a map and PlayerViewController which reproduce a webcam.
Now each marker only transmits the first stream of the webcam. Help me. How to make different webcam worked?
ViewController
import UIKit
import MapKit
class ViewController: UIViewController, MKMapViewDelegate {
#IBOutlet weak var mapView: MKMapView!
var moscow: [(name: String, URLs:String, img:String, latitude: Double, longitude: Double)] =
[("cam1", "http://example/1.m3u8", "1.jpg", 55.753989, 37.620235),
("cam2", "http://example/2.m3u8", "2.jpg", 55.741308, 37.653914),
("cam3","http://example/3.m3u8","3.jpg", 55.742468, 37.629292)]
override func viewDidLoad() {
super.viewDidLoad()
var latitudes = moscow.map({ $0.latitude })
var longitudes = moscow.map({ $0.longitude })
var annotations = moscow.map({ $0.name })
for i in 0...2 {
let coordinate = CLLocationCoordinate2DMake(latitudes[i], longitudes[i])
let span = MKCoordinateSpanMake(0.003, 0.003)
let region = MKCoordinateRegionMake(coordinate, span)
mapView.setRegion(region, animated:true)
let annotation = MKPointAnnotation()
annotation.coordinate = coordinate
annotation.title = annotations[i]
self.mapView.addAnnotation(annotation)
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func mapView(_ mapView: MKMapView, regionWillChangeAnimated animated: Bool) {
print(#function)
}
// Called when the annotation was added
func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
if annotation is MKUserLocation {
return nil
}
let reuseId = "pin"
var pinView = mapView.dequeueReusableAnnotationView(withIdentifier: reuseId) as? MKPinAnnotationView
if pinView == nil {
pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
pinView?.animatesDrop = true
pinView?.canShowCallout = true
pinView?.isDraggable = true
pinView?.pinColor = .purple
let rightButton: AnyObject! = UIButton(type: UIButtonType.detailDisclosure)
pinView?.rightCalloutAccessoryView = rightButton as? UIView
} else {
pinView?.annotation = annotation
}
return pinView
}
func mapView(_ mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) {
print(#function)
if control == view.rightCalloutAccessoryView {
performSegue(withIdentifier: "toTheMoon", sender: self)
}
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "toTheMoon" {
let controller = segue.destination as! PlayerViewController
var urlll = moscow.map({ $0.URLs })
for i in 0...2 {
controller.webcamURL = urlll[i] // only first cam play
}
}
}
func mapView(_ mapView: MKMapView, annotationView view: MKAnnotationView, didChange newState: MKAnnotationViewDragState, fromOldState oldState: MKAnnotationViewDragState) {
if newState == MKAnnotationViewDragState.ending {
let droppedAt = view.annotation?.coordinate
print(droppedAt)
}
}
}
PlayerViewController
import UIKit
import AVFoundation
import AVKit
class PlayerViewController: AVPlayerViewController {
var webcamURL: String!
var webcamTitle: String!
override func viewDidLoad() {
super.viewDidLoad()
self.title = webcamTitle
let url = URL(string: webcamURL)
player = AVPlayer(url: url!)
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
player!.play()
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
self.player!.pause()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
player = nil
}
}

Answer 1

First of All MKAnnotation is a Protocol so you can implement this protocol in your model class, lets say "Camera"
import UIKit
import MapKit
class Camera: NSObject, MKAnnotation {
var name: String = ""
var urlString :String = ""
var coordinate: CLLocationCoordinate2D = CLLocationCoordinate2D(latitude: 0, longitude: 0)
var imageName : String = ""
init(name:String,camUrl:String,imageNamed:String,latitude:CLLocationDegrees,longitude:CLLocationDegrees) {
super.init()
self.name = name
self.urlString = camUrl
self.imageName = imageNamed
guard latitude != 0 && longitude != 0 else
{
return
}
guard latitude.isNaN || longitude.isNaN else
{
return
}
self.coordinate = CLLocationCoordinate2D(latitude: latitude, longitude: longitude)
}
// Title and subtitle for use by selection UI.
public var title: String? {
get{
return self.name
}
}
}
Then you can reduce your ViewController code like this
import UIKit
import MapKit
class ViewController: UIViewController {
#IBOutlet weak var mapView: MKMapView!
var moscow: [Camera] = []
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
self.moscow = [Camera(name: "cam1", camUrl: "http://example/1.m3u8", imageNamed: "1.jpg", latitude: 55.753989, longitude: 37.620235),
Camera(name: "cam2", camUrl: "http://example/2.m3u8", imageNamed: "2.jpg", latitude: 55.741308, longitude: 37.653914),
Camera(name: "cam3", camUrl: "http://example/3.m3u8", imageNamed: "3.jpg", latitude: 55.742468, longitude: 37.629292)]
self.mapView.addAnnotations(self.moscow)
self.mapView.delegate = self
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
extension ViewController : MKMapViewDelegate
{
func mapView(_ mapView: MKMapView, regionWillChangeAnimated animated: Bool) {
print(#function)
}
// Called when the annotation was added
func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
if annotation is MKUserLocation {
return nil
}
let reuseId = "pin"
var pinView = mapView.dequeueReusableAnnotationView(withIdentifier: reuseId) as? MKPinAnnotationView
if pinView == nil {
pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
pinView?.animatesDrop = true
pinView?.canShowCallout = true
pinView?.isDraggable = true
pinView?.pinColor = .purple
let rightButton: AnyObject! = UIButton(type: UIButtonType.detailDisclosure)
pinView?.rightCalloutAccessoryView = rightButton as? UIView
} else {
pinView?.annotation = annotation
}
return pinView
}
func mapView(_ mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) {
print(#function)
let camera = view.annotation as! Camera
if control == view.rightCalloutAccessoryView {
performSegue(withIdentifier: "toTheMoon", sender: camera)
}
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "toTheMoon" {
let controller = segue.destination as! PlayerViewController
controller.webcamURL = (sender as! Camera).urlString
controller.webcamTitle = (sender as! Camera).name
}
}
func mapView(_ mapView: MKMapView, annotationView view: MKAnnotationView, didChange newState: MKAnnotationViewDragState, fromOldState oldState: MKAnnotationViewDragState) {
if newState == MKAnnotationViewDragState.ending {
let droppedAt = view.annotation?.coordinate
print(droppedAt)
}
}
}
Hope this helps