import UIKit
import GoogleMaps
import FirebaseDatabase
import GeoFire
class MapViewController: UIViewController, CLLocationManagerDelegate, GMSMapViewDelegate {
var mapView = GMSMapView()
var locationManager: CLLocationManager!
let regionRadius: CLLocationDistance = 1000
var place = CLLocationCoordinate2D()
@IBOutlet var myLocationButton: UIButton!
@IBOutlet var infoWindow: UIView!
@IBOutlet var postTitle: UILabel!
@IBOutlet var postImage: UIImageView!
var showing = false;
var pins = [String: Pin]()
var currentMarker = GMSMarker()
override func viewDidLoad() {
super.viewDidLoad()
// sets up the map view (camera, location tracker etc.)
let camera = GMSCameraPosition.camera(withLatitude: place.latitude, longitude: place.longitude, zoom: 17.0)
let mapView = GMSMapView.map(withFrame: CGRect.zero, camera: camera)
mapView.isMyLocationEnabled = true
mapView.delegate = self
view = mapView
self.view.addSubview(myLocationButton)
self.view.bringSubview(toFront: myLocationButton)
// Location manager
locationManager = CLLocationManager()
locationManager.desiredAccuracy = kCLLocationAccuracyBestForNavigation
locationManager.requestAlwaysAuthorization()
locationManager.delegate = self
locationManager.startUpdatingLocation()
// Get nearby records
let geoFire = GeoFire(firebaseRef: FIRDatabase.database().reference().child("geofire"))
let query = geoFire?.query(at: CLLocation(latitude: place.latitude, longitude: place.longitude), withRadius: 0.6)
_ = query?.observe(.keyEntered, with: { (key, location) in
let marker = GMSMarker()
let newPin = Pin(title: "post", locationName: "\(key!)", discipline: "", coordinate: (location?.coordinate)!)
self.pins[newPin.locationName] = newPin
marker.icon = UIImage(named: "icon_small_shadow")
marker.position = Pin.coordinate
marker.title = Pin.title
marker.snippet = Pin.locationName
marker.map = mapView
})
myLocationTapped(myLocationButton)
}
// sets the info in the custom info window
func mapView(_ mapView: GMSMapView, didTap marker: GMSMarker) -> Bool {
if(currentMarker == marker && showing) {
infoWindow.isHidden = true
showing = false
} else {
infoWindow.isHidden = false
self.view.addSubview(infoWindow)
self.view.bringSubview(toFront: infoWindow)
postTitle.text = marker.snippet
showing = true
}
currentMarker = marker
return true
}
@IBAction func myLocationTapped(_ sender: Any) {
print("tapped")
let cameraPosition = GMSCameraPosition.camera(withLatitude: place.latitude, longitude: place.longitude, zoom: 15.0)
mapView.animate(to: cameraPosition)
}
我设置了以下代码,旨在在谷歌地图上放置一个按钮,当点击该按钮时,谷歌地图相机会动画到该位置。但是,我的代码不起作用。 “点击”打印在控制台中,但相机没有移动。我无法在任何地方找到答案,所以任何帮助将不胜感激。
编辑:为 map View Controller 添加了完整代码
最佳答案
在我的例子中, map 没有更新,因为我没有在主队列上调用方法。下面的代码解决了这个问题:
DispatchQueue.main.async {
self.mapView.animate(to: camera)
}
任何与用户界面相关的 Action 都应该在主队列中调用
关于ios - 动画 map 到位置不工作谷歌地图 iOS,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/43952595/