I'm working on Android development using Kotlin, and encountering an issue with a lateinit var named polyline. The error I'm getting suggests that even though I assigned a value to polyline inside a function called from the onCreate, the app is still crashing with the message that polyline has not been initialized.
Pls how do I go about this? Is there something I'm missing?
See the code below. I removed all unneccessary codes for this question
class CustomerMapActivity : AppCompatActivity(), OnMapReadyCallback {
private lateinit var polyline: String
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
binding = ActivityCustomerMapBinding.inflate(layoutInflater)
setContentView(binding.root)
val pickUpLocation = "Hall 2 Car Park, Benin City, Nigeria"
val dropOffLocation = "Nadia Bakery, Benin City, Nigeria"
val apiKey = R.string.google_api_key.toString()
routesDetails(pickUpLocation, dropOffLocation, apiKey)
}
override fun onMapReady(mMap: GoogleMap) {
drawRouteOnMap()
}
private fun routesDetails(origin: String, destination: String, apiKey: String){
val routeService = ServiceBuilder.buildService(RouteService::class.java)
val requestCall = routeService.getRoutes(origin, destination, apiKey)
requestCall.enqueue(object: Callback<RoutesResponse> {
override fun onResponse(call: Call<RoutesResponse>, response: Response<RoutesResponse>) {
if (response.isSuccessful) {
if (routeResponse != null && routeResponse.routes.isNotEmpty()){
polyline = response.body()?.routes?.get(0)?.overview_polyline?.points.toString()
}else{
}
}
}
override fun onFailure(call: Call<RoutesResponse>, t: Throwable) {
}
})
}
private fun drawRouteOnMap() {
val decodedPolyline = PolyUtil.decode(polyline)
}
Logcat:
FATAL EXCEPTION: main
Process: leoh.portcustomer, PID: 24494
kotlin.UninitializedPropertyAccessException: lateinit property polyline has not been initialized
at leoh.portcustomer.activities.CustomerMapActivity.drawRouteOnMap(CustomerMapActivity.kt:162)
at leoh.portcustomer.activities.CustomerMapActivity.onMapReady(CustomerMapActivity.kt:104)
at com.google.android.gms.maps.zzat.zzb(com.google.android.gms:play-services-maps@@18.1.0:1)
at com.google.android.gms.maps.internal.zzar.zza(com.google.android.gms:play-services-maps@@18.1.0:6)
at com.google.android.gms.internal.maps.zzb.onTransact(com.google.android.gms:play-services-maps@@18.1.0:3)
at android.os.Binder.transact(Binder.java:1043)
at m.ff.c(:com.google.android.gms.dynamite_mapsdynamite@232617040@23.26.17 (150700-0):8)
at com.google.maps.api.android.lib6.impl.bg.run(:com.google.android.gms.dynamite_mapsdynamite@232617040@23.26.17 (150700-0):19)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
Tried resolving it but wasnt still working. I'll appreciate your asistance
