Как узнать текущее местоположение с карты в Android - PullRequest
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Как узнать текущее местоположение с карты в Android

0 голосов
/ 07 ноября 2019

В моем приложении я хочу использовать mapBox для использования карты в моем приложении, и я хочу показать текущее местоположение при загрузке приложения.
Я пишу ниже коды, но когдаЗапустите приложение, покажите мне ошибку в logcat (не принудительно закрывать) и не загружена карта !
Мои коды активности: 

class AddressMapPage : BaseActivity(), LocationEngineListener {

    override var layoutId: Int = R.layout.activity_address_map_page
    override var context: Context = this
    private lateinit var mapirMap: MapirMap
    private lateinit var latLng: LatLng

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        //Hide status bar
        window.setFlags(
            WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN
        )

        (supportFragmentManager.findFragmentById(R.id.myMapView) as SupportMapFragment)
            .getMapAsync { mapirMap ->

                this@AddressMapPage.mapirMap = mapirMap

                imageView2.setOnClickListener {
                    latLng = mapirMap.cameraPosition.target
                    toast(latLng.toString())
                    Log.e("TalAndLog", latLng.toString())
                }

                getLocationPermission()
            }
    }

    private fun getLocationPermission() {
        KotlinPermissions.with(this)
            .permissions(Manifest.permission.ACCESS_FINE_LOCATION)
            .onAccepted {
                currentLocation()
            }
            .onDenied {
                toast("Not allowed error message")
            }
            .onForeverDenied {
                toast("Not allowed error message")
            }
            .ask()
    }

    private fun currentLocation() {
        val component = mapirMap.locationComponent
        component.activateLocationComponent(context)
        component.isLocationComponentEnabled = true
        if (component.locationEngine != null) {
            component.locationEngine!!.addLocationEngineListener(this)
        }
        mapirMap.animateCamera(
            CameraUpdateFactory
                .newLatLngZoom(
                    LatLng(
                        component.lastKnownLocation!!.latitude,
                        component.lastKnownLocation!!.longitude
                    ), 14.0
                )
        )
    }

    override fun onLocationChanged(location: Location?) {
        if (location != null)
            mapirMap.animateCamera(
                CameraUpdateFactory.newLatLngZoom(
                    LatLng(
                        location.latitude,
                        location.longitude
                    ), 14.0
                )
            )
    }

    override fun onConnected() {
    }
}

Ошибки Logcat: 

kotlin.KotlinNullPointerException
        at com.app.ui.address.map.AddressMapPage.currentLocation(AddressMapPage.kt:77)
        at com.app.ui.address.map.AddressMapPage.access$currentLocation(AddressMapPage.kt:20)
        at com.app.ui.address.map.AddressMapPage$getLocationPermission$1.invoke(AddressMapPage.kt:55)
        at com.app.ui.address.map.AddressMapPage$getLocationPermission$1.invoke(AddressMapPage.kt:20)
        at com.kotlinpermissions.KotlinPermissions$PermissionCore$onAccepted$1.onResult(KotlinPermissions.kt:56)
        at com.kotlinpermissions.KotlinPermissions$PermissionCore.onReceivedPermissionResult$kotlin_permissions_release(KotlinPermissions.kt:36)
        at com.kotlinpermissions.KotlinPermissions$PermissionCore.onAcceptedPermission(KotlinPermissions.kt:132)
        at com.kotlinpermissions.KotlinPermissions$PermissionCore.ask(KotlinPermissions.kt:107)
        at com.app.ui.address.map.AddressMapPage.getLocationPermission(AddressMapPage.kt:63)
        at com.app.ui.address.map.AddressMapPage.access$getLocationPermission(AddressMapPage.kt:20)
        at com.app.ui.address.map.AddressMapPage$onCreate$1.onMapReady(AddressMapPage.kt:47)
        at ir.map.sdk_map.maps.SupportMapFragment.onMapReady(SupportMapFragment.java:124)
        at ir.map.sdk_map.maps.MapView$MapCallback.onMapReady(MapView.java:1663)
        at ir.map.sdk_map.maps.MapView$MapCallback.onDidFinishLoadingStyle(MapView.java:1701)
        at ir.map.sdk_map.maps.MapChangeReceiver.onDidFinishLoadingStyle(MapChangeReceiver.java:195)
        at ir.map.sdk_map.maps.NativeMapView.onDidFinishLoadingStyle(NativeMapView.java:995)
        at android.os.MessageQueue.nativePollOnce(Native Method)

Показать ошибку для этой строки : component.lastKnownLocation!!.latitude,

как я могу это исправить?

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