How can do dynamic google marker after get the coordinates from server i am fetching latitude and longitude from REST API
my showMarker function is given below:
private func showMarker(_ lat: String, _ lng: String, _ description: String){
let latitude: CLLocationDegrees = Double(lat) ?? 0.00
let longitude: CLLocationDegrees = Double(lng) ?? 0.00
print("Latitude: \(latitude), Longitude: \(longitude)")
let position = CLLocationCoordinate2DMake(latitude, longitude)
let marker = GMSMarker(position: position)
marker.title = ""
marker.map = self.mapView
}
If the below code run in ViewDidLoad() that's working fine
self.camera = GMSCameraPosition.camera(withLatitude: 6.244880, longitude: 7.001920, zoom: 10.0)
mapView.camera = self.camera
mapView.animate(toZoom: 10.0)
self.mapView = GMSMapView.map(withFrame: self.view.bounds, camera: self.camera)
But when i called them after the above code after the showMarker function then camera object get nil
I just want to add the marker after fetching the data through rest api
Related
I'm trying to zoom google map on particular pin from lat long.it working fine but i want to change pin image when zoom in on pin in swift.i have doing like this but there have putting 2 image on same lat long.
func zoom(lat: Double, long : Double){
CATransaction.begin()
CATransaction.setValue(1, forKey: kCATransactionAnimationDuration)
// It will animate your camera to the specified lat and long
let camera = GMSCameraPosition.camera(withLatitude: lat, longitude: long, zoom: 15)
self.mapView!.animate(to: camera)
let position = CLLocationCoordinate2D(latitude: lat,longitude: long)
let marker = GMSMarker()
marker.map = self.mapView
marker.icon = UIImage.init(named: "pin-1")
CATransaction.commit()
}
You can put a function that detects changes in your zoom level then put a condition that will change the value of your marker icon.
Here is how my code looks like:
import UIKit
import GoogleMaps
class ViewController: UIViewController, GMSMapViewDelegate {
let marker = GMSMarker()
override func viewDidLoad() {
}
override func loadView() {
// Create a GMSCameraPosition that tells the map to display the
// coordinate -33.86,151.20 at zoom level 6.
let camera = GMSCameraPosition.camera(withLatitude: -33.86, longitude: 151.20, zoom: 6.0)
let mapView = GMSMapView.map(withFrame: CGRect.zero, camera: camera)
self.view = mapView
mapView.delegate = self
// Creates a marker in the coordinate of the map.
marker.position = CLLocationCoordinate2D(latitude: -33.86, longitude: 151.20)
marker.title = "Sydney"
marker.snippet = "Australia"
marker.map = mapView
marker.icon = UIImage(named: "pin_orange")
}
//This detect the changes in the cameraposition
func mapView(_ mapView: GMSMapView, didChange position: GMSCameraPosition) {
let zoom = mapView.camera.zoom
print("map zoom is ",String(zoom))
//put a condition here to change the icon of your marker
if zoom > 6 {
marker.icon = UIImage(named: "icon1")
}else{
marker.icon = UIImage(named: "icon2")
}
}
}
Hope this helps!
I would like to change marker position if button tapped. I tried like below. but it will look like this. Some how color will be changed to like so.
How can I fix this? Thank you!
#objc func changeMarker() {
let next = CLLocationCoordinate2DMake(40.730610, -73.935242)
mapView.camera = GMSCameraPosition.camera(withLatitude: next.latitude, longitude: next.longitude, zoom: 13)
let marker = GMSMarker(position: next)
marker.title = "over here"
marker.map = mapView
}
Add this marker and try this
func addMarker() {
let marker = GMSMarker()
marker.position = CLLocationCoordinate2D(latitude: CLLocationDegrees(yourCoordinateLatitude), longitude: CLLocationDegrees(yourCoordinateLongitude))
marker.map = mapView
}
Now you can zoom to your marker
func zoomToCoordinate(coordinate: CLLocationCoordinate2D, zoom: Float) {
CATransaction.begin()
CATransaction.setValue(1, forKey: kCATransactionAnimationDuration)
let camera = GMSCameraPosition.camera(withLatitude: coordinate.latitude, longitude: coordinate.longitude, zoom: zoom)
self.animate(to: camera)
CATransaction.commit()
}
I would call it like this
mapView.clear() // to clear your mapView
mapView.addMarker()
mapView.zoomToCoordinate(coordinate: yourCoordinate, zoom: 15)
Always check if your function is called and if the coordinations are correct.
This code works in my project. If it doesn't work for your project please share more code from you.
New coder try to fit GoogleMap in my view.
I have searched a lot of information and I have come to this conclusion, but it does not work for me.
override func loadView() {
var markerList = [GMSMarker]()
// Create a GMSCameraPosition
let camera = GMSCameraPosition.camera(withLatitude: 4.390205, longitude: 2.154007, zoom: 8)
let mapView = GMSMapView.map(withFrame: CGRect.zero, camera: camera)
mapView.isMyLocationEnabled = true
view = mapView
mapView.settings.myLocationButton = true
//mapView.setMinZoom(10, maxZoom: 20)
//create markers
for loc in arrayOfMapStops {
let marker = GMSMarker()
marker.position = CLLocationCoordinate2D(latitude: loc.lat, longitude: loc.long)
marker.title = loc.address
marker.snippet = loc.type
if loc.type == "Entrega" {marker.icon = GMSMarker.markerImage(with: .green)}
else {marker.icon = GMSMarker.markerImage(with: .blue)}
marker.map = mapView
markerList.append(marker)
}
//fit map to markers
var bounds = GMSCoordinateBounds()
for marker in markerList {
bounds = bounds.includingCoordinate(marker.position)
}
let update = GMSCameraUpdate.fit(bounds)
mapView.moveCamera(update)
}
The map is not adjusted with the proper zoom.
Anyone can help me with the zoom issue?
Thanks in advance :)
I solved the problem by myself. I use DispatchQueue to set the right zoom to my map.
Here is my final code:
override func loadView() {
var markerList = [GMSMarker]()
// Create a GMSCameraPosition
let camera = GMSCameraPosition.camera(withLatitude: 40.4167 , longitude: -3.70325, zoom: 8)
let mapView = GMSMapView.map(withFrame: CGRect.zero, camera: camera)
mapView.isMyLocationEnabled = true
view = mapView
mapView.settings.myLocationButton = true
//mapView.setMinZoom(10, maxZoom: 20)
//create markers
for loc in arrayOfMapStops {
let marker = GMSMarker()
marker.position = CLLocationCoordinate2D(latitude: loc.lat, longitude: loc.long)
marker.title = loc.address
marker.snippet = loc.type
if loc.type == "Entrega" {marker.icon = GMSMarker.markerImage(with: .green)}
else {marker.icon = GMSMarker.markerImage(with: .blue)}
marker.map = mapView
markerList.append(marker)
}
delay(seconds: 3) { () -> () in
//fit map to markers
var bounds = GMSCoordinateBounds()
for marker in markerList {
bounds = bounds.includingCoordinate(marker.position)
}
let update = GMSCameraUpdate.fit(bounds, withPadding: 100.0)
mapView.animate(with: update)
}
}
func delay(seconds: Double, completion:#escaping ()->()) {
let when = DispatchTime.now() + seconds
DispatchQueue.main.asyncAfter(deadline: when) {
completion()
}
}
:)
i have info window that shows after tapped, but how to make it always appear? Without user tap on the marker. I'm using Google Maps.
here's my code :
mapView.delegate = self
let camera = GMSCameraPosition.camera(withLatitude: coordinate.lat, longitude: coordinate.long, zoom: 20)
mapView.animate(to: camera)
for state in states {
let marker = GMSMarker()
marker.position = CLLocationCoordinate2DMake(state.lat, state.long)
print(marker.position)
marker.title = "Country"
marker.snippet = "Places"
marker.map = mapView
mapView.selectedMarker = marker
marker.map = mapView
}
thanks before
First we need to Add a marker.
let position = CLLocationCoordinate2D(latitude: 10, longitude: 10)
let marker = GMSMarker(position: position)
marker.title = "Hello World"
marker.map = mapView
We can Customize the marker image by this:-
let position = CLLocationCoordinate2D(latitude: 51.5, longitude: -0.127)
let london = GMSMarker(position: position)
london.title = "London"
london.icon = UIImage(named: "house")
london.map = mapView
//To change the Marker Opacity use below
marker.opacity = 0.6
To Rotate a marker:-
let position = CLLocationCoordinate2D(latitude: 51.5, longitude: -0.127)
let degrees = 90.0
let london = GMSMarker(position: position)
london.groundAnchor = CGPoint(x: 0.5, y: 0.5)
london.rotation = degrees
london.map = mapView
And to Add an info window:-
let position = CLLocationCoordinate2D(latitude: 51.5, longitude: -0.127)
let london = GMSMarker(position: position)
london.title = "London"
london.snippet = "Population: 8,174,100"
london.map = mapView
To Set an info window to refresh automatically
marker.tracksInfoWindowChanges = true
To Change the position of an info window
let position = CLLocationCoordinate2D(latitude: 51.5, longitude: -0.127)
let london = GMSMarker(position: position)
london.title = "London"
london.snippet = "Population: 8,174,100"
london.infoWindowAnchor = CGPoint(x: 0.5, y: 0.5)
london.icon = UIImage(named: "house")
london.map = mapView
For more details you can go Here
try to move mapView.selectedMarker = marker to delegate function mapView(_ mapView: GMSMapView, didTap marker: GMSMarker) -> Bool function
I am trying to find out altitude from a given point, but I am not getting that with my iPad.
I have defined my altitude var like this:
var altitude: CLLocationDistance = 0.0
I have made this func:
func getAltitude(latitude: CLLocationDistance, longitude: CLLocationDistance) -> CLLocationDistance {
//Get altitude of touched point
locationManager.requestWhenInUseAuthorization()
locationManager.distanceFilter = kCLDistanceFilterNone
locationManager.desiredAccuracy = kCLLocationAccuracyBest
let touchPointLocation = CLLocation(latitude: latitude, longitude: longitude)
let altitude = touchPointLocation.altitude
return altitude
}
For example when I touch the map I tried to get altitude like this, inside the longpress:
let touchPoint = gestureRecognizer.location(in: self.map)
let coord = map.convert(touchPoint, toCoordinateFrom: self.map) //now this coord is working ok. Its touched point coordinates
let altitude = getAltitude(latitude: coord.latitude, longitude: coord.longitude)
print(altitude) //I get 0.0 here :(
Why is this wrong? How can I do this?