I'm trying to show some custom anotation I can see the custom picture in its place but the text disappears and reapear every time I zoom in or out. I've checked several similar question but I don't know how to apply to my code. So please help!
import UIKit
import MapKit
class LocalizacionViewController: UIViewController,MKMapViewDelegate {
var evento: Evento?
#IBOutlet weak var actIndicator: UIActivityIndicatorView!
#IBOutlet weak var contenedorView: UIView!
#IBOutlet weak var mkMapa: MKMapView!
override func viewDidLoad() {
mkMapa.delegate = self
super.viewDidLoad()
evento = eventos.eventoPulsado()
}
override func viewWillAppear(_ animated: Bool) {
contenedorView.layer.borderWidth = 2
contenedorView.aplicarFondoDegradado()
contenedorView.layer.borderColor = UIColor.white.cgColor
contenedorView.layer.cornerRadius = 10
customPin()
let initialLocation = CLLocationCoordinate2D(latitude: (evento!.lat)!, longitude: (evento!.long)!)
mkMapa.setCenter(initialLocation, animated: true)
let region = MKCoordinateRegion(center: initialLocation,latitudinalMeters: 2000,longitudinalMeters: 2000)
mkMapa.setRegion(region, animated: true)
}
func mapViewDidFinishLoadingMap(_ mapView: MKMapView) {
actIndicator.isHidden = true
actIndicator.stopAnimating()
}
func customPin(){
let addAnotation = MKPointAnnotation()
addAnotation.title = evento!.nombre
addAnotation.coordinate = CLLocationCoordinate2D(latitude: evento!.lat!, longitude: evento!.long!)
self.mkMapa.addAnnotation(addAnotation)
}
func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
if annotation is MKUserLocation {
return nil
}
var annotationView = mapView.dequeueReusableAnnotationView(withIdentifier: "custom")
if annotationView == nil {
annotationView = MKAnnotationView(annotation: annotation, reuseIdentifier: "custom")
} else {
annotationView?.annotation = annotation
}
annotationView?.image = UIImage(named:"bars.png" )
return annotationView
}
}
Related
I have two pin annotations on my map. I created a info button to perform the segue. But the button appears only on one annotation. Can anyone help me please? For the annotations I created a function that I put into the viewdidload method.
Here`s the code:
import UIKit
import MapKit
class MapVC: UIViewController, MKMapViewDelegate {
#IBOutlet weak var mapView: MKMapView!
var locManager: CLLocationManager!
override func viewDidLoad() {
super.viewDidLoad()
meinkartenPunkt1()
meinkartenPunkt2()
locManager = CLLocationManager()
locManager.requestWhenInUseAuthorization()
// Do any additional setup after loading the view.
mapView.delegate = self
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
/*
// MARK: - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
}
*/
func mapView(_ mapView: MKMapView,didUpdate userLocation: MKUserLocation){
mapView.region.center=userLocation.coordinate
mapView.showAnnotations(mapView.annotations, animated: true)
}
func meinkartenPunkt1() {
let breite: CLLocationDegrees = 8.737653
let länge: CLLocationDegrees = 47.504333
let Koordinaten = CLLocationCoordinate2DMake(länge, breite)
let Span = MKCoordinateSpanMake(0.01, 0.01)
let Region = MKCoordinateRegionMake(Koordinaten, Span)
mapView.setRegion(Region, animated: true)
let Stecknadel = MKPointAnnotation()
Stecknadel.coordinate = Koordinaten
Stecknadel.title = "Heiligberg"
mapView.addAnnotation(Stecknadel)
}
func meinkartenPunkt2() {
let breite: CLLocationDegrees = 8.734345
let länge: CLLocationDegrees = 47.508456
let Koordinaten = CLLocationCoordinate2DMake(länge, breite)
let Span = MKCoordinateSpanMake(0.01, 0.01)
let Region = MKCoordinateRegionMake(Koordinaten, Span)
mapView.setRegion(Region, animated: true)
let Stecknadel = MKPointAnnotation()
Stecknadel.coordinate = Koordinaten
Stecknadel.title = "Kanti Rychenberg"
mapView.addAnnotation(Stecknadel)
}
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!.canShowCallout = true
pinView!.animatesDrop = true
let calloutButton = UIButton(type: .detailDisclosure)
pinView!.rightCalloutAccessoryView = calloutButton
pinView!.sizeToFit()
}
else {
pinView!.annotation = annotation
}
return pinView
}
func mapView(_ mapView: MKMapView, annotationView view: MKAnnotationView,
calloutAccessoryControlTapped control: UIControl) {
if control == view.rightCalloutAccessoryView {
performSegue(withIdentifier: "bookDetails", sender: self)
}
}
}
When looking at your source code, I cannot directly see an answer, however I see an immediate problem. You do some important setup on the pinView, while it is nil. To be honest, this code certainly crashes, if it is ever reached:
if pinView == nil {
pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
pinView!.canShowCallout = true
Luckily for you, pinView never is nil however, as the mapView creates the pinView successfully. What you probably want to do, is to set the calloutButton, if it is not set. So instead of if pinView == nil you write:
if pinView?.rightCalloutAccessoryView == nil {
// Initialize the rightCalloutAccessoryView here
}
Tip: In general you should avoid force unwraps with ! as it leads to crashes. Try to use optional chaining with ? instead.
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
}
}
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
I implemented map view and created simple data model for annotations.
The pins are shown on the map, but I am still unable to get the details by tapping any pin.
My Code:
import UIKit
import MapKit
class MapViewController: UIViewController, MKMapViewDelegate {
#IBOutlet weak var mapView: MKMapView!
#IBOutlet weak var topView: MapDataView!
var dummyModel: DummyModel?
override func viewDidLoad() {
super.viewDidLoad()
dummyModel = DummyModel()
mapView.delegate = self
mapView.showsUserLocation = true
let region = MKCoordinateRegionMakeWithDistance(mapView.userLocation.coordinate, 1000, 1000)
mapView.setRegion(region, animated: true)
let range = 0..<Int((dummyModel?.objectsArray.count)!)
Array is valid and has no nil:
for i in range {
mapView.addAnnotation((dummyModel?.objectsArray[i])!)
}
The way i add annotation to the map:
mapView.selectAnnotation(mapView.annotations[0], animated: true)
}
func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
print("viewForAnnotation")
let identifier = "PubMapObject"
if annotation is PubMapObject {
var annotationView = mapView.dequeueReusableAnnotationView(withIdentifier: identifier)
if annotationView == nil {
annotationView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: identifier)
annotationView!.canShowCallout = true
let btn = UIButton(type: .detailDisclosure)
annotationView!.rightCalloutAccessoryView = btn
} else {
annotationView!.annotation = annotation
}
return annotationView
}
return nil
}
This method never called and i dont know why. i guess the problem is here, but i am unable to find it ):
func mapView(_ mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) {
print("annotationView")
let pub = view.annotation as! PubMapObject
}
}
Try to add set frame of annotation view before returning annotation view
//my annotation class and provide width and height to annotation view before returning the annotation view and give frame to
func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
if (annotation.isKind(of: MKUserLocation.self)) {
return nil
}
let reuseId = "PubMapObject"
if (annotation.isKind(of: PubMapObject.self)) {
let anView = MKAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
anView.isEnabled = true
anView.isUserInteractionEnabled = true
let btn = UIButton(type: .detailDisclosure)
btn.frame = CGRect(x: 0, y: 0, width: 50, height: 70)
anView!.rightCalloutAccessoryView = btn
anView.frame = CGRect(x: 0, y: 0, width: 50, height: 70)
return anView
}
return nil
}
Try using didSelect function instead of calloutAccessoryControlTapped.
func mapView(_ mapView: MKMapView, didSelect annotationView: MKAnnotationView) { ...
I relatively new to programming and need help switching between views by tapping a button in a mapView annotated pin.
import UIKit
import MapKit
import CoreLocation
class ViewController: UIViewController, MKMapViewDelegate, CLLocationManagerDelegate {
//REF
#IBOutlet weak var mapView: MKMapView!
#IBOutlet weak var bottompnl: UIImageView!
#IBAction func mysticsbtn(sender: AnyObject) {
}
#IBAction func bondibtn(sender: AnyObject) {
}
//MAP
let locationManager = CLLocationManager()
//Annotation
func mapView(mapView: MKMapView!, viewForAnnotation annotation: MKAnnotation!) -> MKAnnotationView! {
let identifier = "beach"
if annotation is Beach {
var annotationView = mapView.dequeueReusableAnnotationViewWithIdentifier(identifier)
if annotationView == nil {
annotationView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: identifier)
annotationView!.canShowCallout = true
let btn = UIButton(type: .DetailDisclosure)
annotationView!.rightCalloutAccessoryView = btn
} else {
annotationView!.annotation = annotation
}
return annotationView
self.performSegueWithIdentifier("mysticssegue", sender: nil)
}
return nil
}
override func viewDidLoad() {
super.viewDidLoad()
let annotations = getMapAnnotations()
// Add mappoints to Map
mapView.addAnnotations(annotations)
mapView.delegate = self
//MAP
self.locationManager.delegate = self
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest
self.locationManager.requestWhenInUseAuthorization()
self.locationManager.startUpdatingLocation()
//MAKES THE DOT
self.mapView.showsUserLocation = true
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MAP: Location Delegates Methods
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let location = locations.last
let centre = CLLocationCoordinate2D(latitude: location!.coordinate.latitude, longitude: location!.coordinate.longitude)
let region = MKCoordinateRegion(center: centre, span: MKCoordinateSpan(latitudeDelta: 3, longitudeDelta: 3))
self.mapView.setRegion(region, animated: true)
self.locationManager.startUpdatingLocation()
}
//TO FIND ERROS
func locationManager(manager: CLLocationManager, didFailWithError error: NSError) {
print("Erros: " + error.localizedDescription)
}
//MARK:- Annotations
func getMapAnnotations() -> [Beach] {
var annotations:Array = [Beach]()
//load plist file
var beaches: NSArray?
if let path = NSBundle.mainBundle().pathForResource("beaches", ofType: "plist") {
beaches = NSArray(contentsOfFile: path)
}
if let items = beaches {
for item in items {
let lat = item.valueForKey("lat") as! Double
let long = item.valueForKey("long")as! Double
let annotation = Beach(latitude: lat, longitude: long)
annotation.title = item.valueForKey("title") as? String
annotations.append(annotation)
}
}
return annotations
}
//END
}
It looks like you're returning from the function mapView before calling performSegueWithIdentifier.
return annotationView
self.performSegueWithIdentifier("mysticssegue", sender: nil)
Try reversing the order of these two lines. I also noticed that you have some #IBAction methods that have no code in them.
Please help, Im having trouble passing parse object from annotation Query to destinationViewController. When the user taps the annotation view it takes the user to the destinationVC, but it passes the same object no matter which annotation the user taps. I think it has something to do with the prepareForSegue function. Please let me know what Im doing wrong.
Heres my code:
class MapSearchViewController: UIViewController, MKMapViewDelegate, CLLocationManagerDelegate {
#IBOutlet weak var mapView: MKMapView!
var jobPosts = [PFObject]()
var jobPost: PFObject?
let locationManager = CLLocationManager()
var currentLoc: PFGeoPoint! = PFGeoPoint()
override func viewDidLoad() {
super.viewDidLoad()
//MARK new added code Start--
self.mapView.delegate = self
self.mapView.setUserTrackingMode(MKUserTrackingMode.Follow, animated: true)
//MARK new added code End--
self.locationManager.delegate = self
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest
self.locationManager.requestWhenInUseAuthorization()
self.locationManager.startUpdatingLocation()
//Snippet For Blue Current Location Dot:
//self.mapView.showsUserLocation = true
}
//MARK: -- Location Delegate Methods
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let location = locations.last
let center = CLLocationCoordinate2D(latitude: location!.coordinate.latitude, longitude: location!.coordinate.longitude)
let region = MKCoordinateRegion(center: center, span: MKCoordinateSpan(latitudeDelta: 1, longitudeDelta: 1))
self.mapView.setRegion(region, animated: true)
self.locationManager.stopUpdatingLocation()
}
func locationManager(manager: CLLocationManager, didFailWithError error: NSError) {
print("Errors: " + error.localizedDescription)
}
//MARK: OCT 26
override func viewDidAppear(animated: Bool) {
let annotationQuery = PFQuery(className: "JobPost")
currentLoc = PFGeoPoint(location: locationManager.location)
annotationQuery.whereKey("location", nearGeoPoint: currentLoc, withinMiles: 100)
annotationQuery.findObjectsInBackgroundWithBlock {
(posts, error) -> Void in
if error == nil {
// The find succeeded.
print("Successful query for annotations")
let jobPosts = posts as [PFObject]!
for post in jobPosts {
let point = post["location"] as! PFGeoPoint
var annotation = MKPointAnnotation()
annotation.coordinate = CLLocationCoordinate2DMake(point.latitude, point.longitude)
self.mapView.addAnnotation(annotation)
annotation.title = post["job"] as! String
let pay = post["price"] as! String
let payLabel = "\(pay)$"
annotation.subtitle = payLabel
let btn = UIButton(type: .DetailDisclosure)
self.jobPost = post
}
} else {
// Log details of the failure
print("Error: \(error)")
}
}
}
func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
var view = mapView.dequeueReusableAnnotationViewWithIdentifier("annotationIdentifier")
if view == nil {
view = MKPinAnnotationView(annotation: annotation, reuseIdentifier: "annotationIdentifier")
view?.canShowCallout = true
view?.rightCalloutAccessoryView = UIButton(type: .DetailDisclosure)
} else {
view?.annotation = annotation
}
return view
}
var selectedAnnotation: MKPointAnnotation!
func mapView(mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) {
if control == view.rightCalloutAccessoryView {
selectedAnnotation = view.annotation as? MKPointAnnotation
performSegueWithIdentifier("annotationSender", sender: self)
}
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if let destination = segue.destinationViewController as? JobDetailViewController {
destination.currentObject = jobPost
}
}
}
code for detailVC:
class JobDetailViewController: UIViewController, MFMailComposeViewControllerDelegate {
#IBOutlet weak var jobTitleLabel: UILabel!
#IBOutlet weak var priceLabel: UILabel!
#IBOutlet weak var distanceLabel: UILabel!
#IBOutlet weak var jobDescriptionContent: UITextView!
#IBOutlet weak var pictureImageView: UIImageView!
var jobPosts:[PFObject]!
var currentObject : PFObject?
var distance = "7"
var annotation = MKPointAnnotation()
override func viewDidLoad() {
super.viewDidLoad()
self.distanceLabel.text = "\(distance) miles away"
if let object = currentObject {
jobTitleLabel.text = object["job"] as! String
priceLabel.text = object["price"] as! String
jobDescriptionContent.text = object["description"] as! String
}
}