I am trying to add annotations to multiple locations on the Map. I am using Simulator with iPhone 6 selected as the Device. However when I drag the map to other locations in order to add annotations, it keeps coming back to the base location.i.e the original location the simulator displayed at the launch ( note: I have imported CoreLocation, add added NSLocationAlways and WheninUse to the info.plist).
How do I let it stay at the location I drag the map to ?
Here is the code...
import UIKit
import MapKit
import CoreLocation
class MapViewController: UIViewController, MKMapViewDelegate, CLLocationManagerDelegate {
#IBOutlet var theMap: MKMapView!
var locManager = CLLocationManager()
override func viewDidLoad() {
super.viewDidLoad()
locManager.requestWhenInUseAuthorization()
locManager.desiredAccuracy = kCLLocationAccuracyBest
locManager.delegate = self
locManager.startUpdatingLocation()
let longPress = UILongPressGestureRecognizer(target: self, action: "longPressed:")
longPress.minimumPressDuration = 2
self.view.addGestureRecognizer(longPress)
}
func longPressed(theGesture: UIGestureRecognizer) {
if theGesture.state == UIGestureRecognizerState.Began {
print("recognised")
let touchPoint = theGesture.locationInView(self.theMap)
let convertedTouchPoint = theMap.convertPoint(touchPoint, toCoordinateFromView: self.theMap)
let annotation = MKPointAnnotation()
annotation.title = "Place 1"
annotation.subtitle = "Description Place 1"
annotation.coordinate = convertedTouchPoint
theMap.addAnnotation(annotation)
}
}
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let userLocation = locations[0]
let latitude: CLLocationDegrees = userLocation.coordinate.latitude
let longitude: CLLocationDegrees = userLocation.coordinate.longitude
let latDelta:CLLocationDegrees = 0.01
let longDelta:CLLocationDegrees = 0.01
let center = CLLocationCoordinate2D(latitude: latitude, longitude: longitude)
let span = MKCoordinateSpan(latitudeDelta: latDelta, longitudeDelta: longDelta)
let region = MKCoordinateRegion(center: center, span: span)
theMap.setRegion(region, animated: true)
}
}
Just figured out that, with the Simulator selected , navigate to Debug--> Location and Select 'None'. This fixed the issue. I can now drag to different locations without getting back to the base location.
Related
I'm still fairly new to swift/xcode so this may just be a simple issue with viewDidLoad that I am over looking but here's whats happening. I am working on an application that gets your current location and displays the closest ski mountains around you using Google Maps/Places API. If I run the scene directly from the Navigation controller, the map displays properly with all the markers for the mountains. However I am implementing a log in function and therefore if I load the scene after logging in, the maps just resets to the original coordinates in the viewDidLoad function. My code is posted below. My question is first, how do i fix it so that it doesn't reset to the original coordinates and secondly, why does it do this only when I run it from a scene that isn't the navigation controller?
import UIKit
import GoogleMaps
import GooglePlaces
import CoreLocation
class MountainFinderController: UIViewController, CLLocationManagerDelegate {
let mountainModel = skiMountainData()
var placesClient: GMSPlacesClient?
var locationManager = CLLocationManager()
lazy var mapView = GMSMapView()
var currentLocation: CLLocationCoordinate2D!
var mountainMarkers = [GMSMarker]()
typealias JSONDictionary = [String: Any]
override func viewDidLoad() {
super.viewDidLoad()
//creates initial map view
let cameraGMAPS = GMSCameraPosition.camera(withLatitude: 0, longitude: 0, zoom: 8)
mapView = GMSMapView.map(withFrame: CGRect.zero, camera: cameraGMAPS)
mapView.isMyLocationEnabled = true
self.view = mapView
print("created init map")
//requests authorization to use location
locationManager.requestAlwaysAuthorization()
self.locationManager.delegate = self
locationManager.requestWhenInUseAuthorization()
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.startUpdatingLocation()
print("done loading view")
}
override func loadView() {
}
//called when startUpdatingLocation is called
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
//gets user location
let userLocation = locations.last
currentLocation = CLLocationCoordinate2D(latitude: userLocation!.coordinate.latitude, longitude: userLocation!.coordinate.longitude)
//moves the camera to the users current location and shows their current location on the map
let cameraGMAPS = GMSCameraPosition.camera(withLatitude: userLocation!.coordinate.latitude, longitude: userLocation!.coordinate.longitude, zoom: 8)
mapView = GMSMapView.map(withFrame: self.view.bounds, camera: cameraGMAPS)
mapView.isMyLocationEnabled = true
self.view = mapView
//function call to get nearest 20 mountains
mountainModel.getNearbyMountains(lat: locationManager.location!.coordinate.latitude, long: locationManager.location!.coordinate.longitude)
//adds a marker for each mountain
print("adding markers")
addMarkers()
print("added markers")
//stops updating the location
locationManager.stopUpdatingLocation()
}
//func to add a marker for each mountain to the map
func addMarkers(){
mountainMarkers.removeAll()
for currMountain in mountainModel.getSkiMountainData() {
let mountainMarker = GMSMarker()
mountainMarker.position = CLLocationCoordinate2D(latitude: currMountain.getLat(), longitude: currMountain.getLong())
mountainMarker.title = currMountain.getName()
mountainMarker.map = mapView
mountainMarkers.append(mountainMarker)
}
mountainModel.setMountainMarkers(markers: mountainMarkers)
}
}
Figured it out. Drewster was right i had to update the
mapView with mapView.camera = cameraGMAPS
Thank you guys
I have an ios application built to use mapkit and corelocation. the application works with no error but the map doesnt pin point my current location in xcode simulator and when run on an actual device it does not show the land scape and other things. just a blank map with a single road and it cannot be zoomed in or out.
below is my code
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
//IF we have coordinate from manager
//let location = locations.last as CLLocation
if let location = locationManager.location?.coordinate{
userLocation = CLLocationCoordinate2D(latitude: location.latitude, longitude: location.longitude)
let region = MKCoordinateRegion(center: userLocation!, span: MKCoordinateSpan(latitudeDelta: 0.01, longitudeDelta: 0.01))
mapView.setRegion(region, animated: true)
mapView.removeAnnotations(mapView.annotations)
let annotation = MKPointAnnotation()
annotation.coordinate = userLocation!
annotation.title = "Me!"
mapView.addAnnotation(annotation)
}
}
additional codes would be supplied on request
Here, this Class that I use to show a Pin to location -
import UIKit
import MapKit
class ContactViewController: UIViewController,MKMapViewDelegate,CLLocationManagerDelegate {
#IBOutlet var viewBG1: UIView!
#IBOutlet var mapview: MKMapView!
override func showPinLocation() {
let annotation = MKPointAnnotation()
annotation.title = "Title"
var coordinate = CLLocationCoordinate2D()
coordinate.latitude = 28.702466
coordinate.longitude = 77.1016314
annotation.coordinate = coordinate
var region = MKCoordinateRegion()
var span = MKCoordinateSpan()
span.latitudeDelta = 0.002; // 0.0 is min value u van provide for zooming
span.longitudeDelta = 0.002
region.span=span;
region.center = coordinate; // to locate to the center
self.mapview.addAnnotation(annotation)
self.mapview.setRegion(region, animated: true)
self.mapview.regionThatFits(region)
// Do any additional setup after loading the view.
}
The simulator is doing what it is supposed to. You can change the location from the debug menu:
If you're using a storyboard, go to your map view and look for these things to edit your view:
And
You can set the map to hybrid and get streets and satellite, you can also make your mapView scalable and many other things.
If you want to set the type of view programmatically, you can implement a segmented control and do this:
#IBAction func segmentedControlAction(sender: UISegmentedControl!) {
switch (sender.selectedSegmentIndex) {
case 0:
mapView.mapType = .Standard
case 1:
mapView.mapType = .Satellite
default:
mapView.mapType = .Hybrid
}
}
And to programmatically set the UI :
self.mapView.zoomEnabled = true;
self.mapView.scrollEnabled = true;
self.mapView.userInteractionEnabled = true;
I am currently developing an iOS application using location.
But I want to have a customized map to show user's location, not the default map given by MapKit.
A map like this for example :
Is it possible to achieve something like this in Swift 4.0 ?
Thanks a lot
You need to use MKTileOverlay - documentation is here...
As it says:
You use tile overlay objects to represent your own tile-based content
and to coordinate the display of that content in a map view. Your
tiles can supplement the underlying map content or replace it
completely.
(my emphasis)
This is how you can make a map show your live current location.
Full code:
import UIKit
import MapKit
//import CoreLocation
class ViewController: UIViewController, UIScrollViewDelegate ,CLLocationManagerDelegate, MKMapViewDelegate {
#IBOutlet var map: MKMapView!
var locationManager = CLLocationManager()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.requestWhenInUseAuthorization()
locationManager.startUpdatingLocation()
}
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let userLocation: CLLocation = locations[0]
let latitude = userLocation.coordinate.latitude
let longitude = userLocation.coordinate.longitude
let latDelta: CLLocationDegrees = 0.05
let lonDelta: CLLocationDegrees = 0.05
let span = MKCoordinateSpan(latitudeDelta: latDelta, longitudeDelta: lonDelta)
let location = CLLocationCoordinate2D(latitude: latitude, longitude: longitude)
let region = MKCoordinateRegion(center: location, span: span)
self.map.setRegion(region, animated: false)
let annotation = MKPointAnnotation()
annotation.coordinate = location
annotation.title = "My current Location"
map.addAnnotation(annotation)
}
}
Note that you also have to add the permissions to the info.plist file
the permissions are:
Privacy - Location When In Use Usage Description
Privacy - Location Always Usage Description
Here is how you can give fixed location and a pin in a map view
import UIKit
import MapKit
class ViewController: UIViewController {
#IBOutlet weak var myMap: MKMapView!
override func viewDidLoad() {
super.viewDidLoad()
let latitude : CLLocationDegrees = 86.44999
let longitude : CLLocationDegrees = 54.39
let latitudeDelta : CLLocationAccuracy = 0.05
let longituteDelta : CLLocationAccuracy = 0.05
let myLocation = CLLocationCoordinate2D(latitude: latitude, longitude: longitude)
let mySpan = MKCoordinateSpanMake(latitudeDelta, longituteDelta)
let myRegion = MKCoordinateRegion(center: myLocation, span: mySpan)
myMap.setRegion(myRegion, animated: true)
let annotation = MKPointAnnotation()
annotation.coordinate = myLocation
myMap.addAnnotation(annotation)
}
}
I can't seem to get the latitude and longitude to show up on the labels. I've tried many things though I'm guessing it might be something simple.
import Foundation
import UIKit
import CoreLocation
import MapKit
class LocationVC: UIViewController, CLLocationManagerDelegate {
var location: CLLocation! {
didSet{
longLabel.text = ("\(location.coordinate.latitude)")
latLabel.text = ("\(location.coordinate.longitude)")
}
}
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation])
{
let location = locations[0]
let span:MKCoordinateSpan = MKCoordinateSpanMake(0.5, 0.5)
let myLocation:CLLocationCoordinate2D = CLLocationCoordinate2DMake(location.coordinate.latitude, location.coordinate.longitude)
let region:MKCoordinateRegion = MKCoordinateRegionMake(myLocation, span)
map.setRegion(region, animated: true)
print("hhhhh\(location.coordinate.latitude)")
print(location.altitude)
print(location.speed)
self.map.showsUserLocation = true
}
All the views are set up correctly.
You did not change the value of the location variable of your class, which would trigger the text change of the label. Append this to didUpdateLocations:
self.location = location
Use this
longLabel.text = location.coordinate.latitude.description
latLabel.text = location.coordinate.longitude.description
New coder, trying to figure out how to use MapKit. The goal is to create a map that users can add pins to using their address. However, the step I am at now, I am having trouble figuring out how to add pins to the map at all.
How can I add a pin to the map? I have been struggling to figure out how to use annotations thus far.
That's what I'm hoping for help/direction with. Thanks!
import UIKit
import MapKit
import CoreLocation
class ViewController: UIViewController, MKMapViewDelegate, CLLocationManagerDelegate
{
#IBOutlet weak var bigMap: MKMapView!
let locationManager = CLLocationManager()
override func viewDidLoad() {
super.viewDidLoad()
self.locationManager.delegate = self
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest
self.locationManager.requestWhenInUseAuthorization()
self.locationManager.startUpdatingLocation()
self.bigMap.showsUserLocation = true
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
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: 0.02, longitudeDelta: 0.02))
self.bigMap.setRegion(region, animated: true)
self.locationManager.stopUpdatingLocation()
}
func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
print("Errors " + error.localizedDescription)
}
}
They're called annotations in the MapKit and you should instantiate them like so:
let annotation = MKPointAnnotation()
then in the viewDidLoad() method just set the coordinates and add them to the map like:
annotation.coordinate = CLLocationCoordinate2D(latitude: 11.12, longitude: 12.11)
mapView.addAnnotation(annotation)
The numbers are your coordinates
The way that I learned how to do this is:
In the same function as viewDidLoad(), place the following lines of code:
let annotation = MKPointAnnotation()
annotation.title = "Your text here"
//You can also add a subtitle that displays under the annotation such as
annotation.subtitle = "One day I'll go here..."
annotation.coordinate = center
This is the only place I can see where you have a coordinate
if all else fails, just add the coordinate (search on Google if you
need to know how to create a coordinate) and set it equal to the
"annotation.coordinate" variable
map.addAnnotation(annotation)
Dassit!