No adapter attached; skipping layout fragment Kotlin - kotlin

Question

This is my code and I can't see what is the problem. The error I keep seeing is No adapter attached; skipping layout.
AndroidManifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.gsixacademy.android.bikesrevisited">
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/Theme.BikesRevisited"
android:usesCleartextTraffic="true"
>
<activity
android:name=".MainActivity"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
ADAPTER:
package com.gsixacademy.android.bikesrevisited.adapters
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.recyclerview.widget.RecyclerView
import com.gsixacademy.android.bikesrevisited.R
import com.gsixacademy.android.bikesrevisited.models.BikeModel
import com.gsixacademy.android.bikesrevisited.models.BikeResult
import kotlinx.android.synthetic.main.bikes_custom_row.view.*
class Adapter(
var bikeList: ArrayList<BikeResult>,
val bikesOnClickEvent:(BikesOnClickEvent)->Unit
) : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
return MyViewHolder(
LayoutInflater.from(parent.context).inflate(R.layout.bikes_custom_row, parent, false)
)
}
override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
var myHolder = holder as MyViewHolder
myHolder.bindData(bikeList[position], position)
}
inner class MyViewHolder(view: View) : RecyclerView.ViewHolder(view) {
fun bindData(itemModel: BikeResult, position: Int) {
itemView.city_TV.text = itemModel.city
itemView.country_TV.text = itemModel.country
}
}
override fun getItemCount(): Int {
return bikeList.size
}
}
BIKES ON CLICK EVENT:
package com.gsixacademy.android.bikesrevisited.adapters
import com.gsixacademy.android.bikesrevisited.models.BikeResult
sealed class BikesOnClickEvent {
data class BikesClicked(val bike:BikeResult):BikesOnClickEvent()
}
APISERVICEBUILDER:
package com.gsixacademy.android.bikesrevisited.api
import okhttp3.OkHttpClient
import retrofit2.Retrofit
import retrofit2.converter.gson.GsonConverterFactory
object ApiServiceBuilder {
val client=OkHttpClient.Builder().build()
val retrofit= Retrofit.Builder()
.baseUrl("http://api.citybik.es/v2/")
.client(client)
.addConverterFactory(GsonConverterFactory.create())
.build()
fun <T>buildService(service:Class<T>):T{
return retrofit.create(service)
}
}
BIKESAPI:
package com.gsixacademy.android.bikesrevisited.api
import com.gsixacademy.android.bikesrevisited.models.BikeModel
import retrofit2.Call
import retrofit2.http.GET
interface BikesApi {
#GET("networks")
fun getBikes(): Call<BikeModel>
}
BIKE MODEL
package com.gsixacademy.android.bikesrevisited.models
class BikeModel (val networks:ArrayList<BikeResult> )
BIKE RESULT
package com.gsixacademy.android.bikesrevisited.models
class BikeResult (
val city:String,val country:String
)
BIKE FRAGMENT
package com.gsixacademy.android.bikesrevisited
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.Toast
import androidx.fragment.app.Fragment
import com.gsixacademy.android.bikesrevisited.R
import kotlinx.android.synthetic.main.recycler_view.*
import androidx.recyclerview.widget.LinearLayoutManager
import com.gsixacademy.android.bikesrevisited.adapters.Adapter
import com.gsixacademy.android.bikesrevisited.api.ApiServiceBuilder
import com.gsixacademy.android.bikesrevisited.api.BikesApi
import com.gsixacademy.android.bikesrevisited.models.BikeModel
import com.gsixacademy.android.bikesrevisited.models.BikeResult
import kotlinx.android.synthetic.main.recycler_view.*
import retrofit2.Call
import retrofit2.Callback
import retrofit2.Response
class BikeFragment:Fragment() {
var request=ApiServiceBuilder.buildService(BikesApi::class.java)
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
val view=inflater.inflate(R.layout.recycler_view,container,false)
val call=request.getBikes()
call.enqueue(object :Callback<BikeModel>{
override fun onResponse(call: Call<BikeModel>, response: Response<BikeModel>) {
if (response.isSuccessful){
var bikeResponse=response.body()
var bikeList=bikeResponse?.networks
if (bikeList!=null){
var bikelistAdapter=Adapter(bikeList){
}
recycler_view.layoutManager=LinearLayoutManager(context)
recycler_view.adapter=bikelistAdapter
}
}
else{}
}
override fun onFailure(call: Call<BikeModel>, t: Throwable) {
Toast.makeText(activity,t.message, Toast.LENGTH_SHORT)
.show()
}
})
return view
}
}
MAIN ACTIVITY:
package com.gsixacademy.android.bikesrevisited
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
}
}
SPLASH FRAGMENT:
package com.gsixacademy.android.bikesrevisited
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.fragment.app.Fragment
import androidx.navigation.fragment.findNavController
import kotlinx.coroutines.GlobalScope
import kotlinx.coroutines.launch
class SplashFragment:Fragment() {
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
return inflater.inflate(R.layout.splash,container,false)
}
override fun onActivityCreated(savedInstanceState: Bundle?) {
super.onActivityCreated(savedInstanceState)
GlobalScope.launch {
Thread.sleep(1500)
findNavController().navigate(R.id.action_splashFragment_to_bikeFragment)
}
}
}
layouts
activity_main
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<fragment
android:id="#+id/navigation_host_fragment"
android:name="androidx.navigation.fragment.NavHostFragment"
android:layout_width="0dp"
android:layout_height="0dp"
app:navGraph="#navigation/navigation_graph"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
</androidx.constraintlayout.widget.ConstraintLayout>
bikes_custom_row
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical">
<androidx.cardview.widget.CardView
android:id="#+id/card_view_item"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:padding="10dp"
app:cardCornerRadius="10dp"
app:cardElevation="3dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:orientation="vertical"
tools:ignore="UseCompoindDrawables">
<TextView
android:id="#+id/city_TV"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:text="city"
android:textColor="#color/black"
android:textSize="18sp"
android:textStyle="bold" />
<TextView
android:id="#+id/country_TV"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:text="country"
android:textColor="#color/black"
android:textSize="18sp"
android:textStyle="bold" />
</LinearLayout>
</androidx.cardview.widget.CardView>
</LinearLayout>
recycler_view
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.recyclerview.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/recycler_view"/>
</androidx.constraintlayout.widget.ConstraintLayout>
splash
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/imageView_splash"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/ic_launcher_background"
android:scaleType="centerInside"/>
</androidx.constraintlayout.widget.ConstraintLayout>
navigation_graph
<?xml version="1.0" encoding="utf-8"?>
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/navigation_graph"
app:startDestination="#id/splashFragment">
<fragment
android:id="#+id/splashFragment"
android:name="com.gsixacademy.android.bikesrevisited.SplashFragment"
android:label="SplashFragment" >
<action
android:id="#+id/action_splashFragment_to_bikeFragment"
app:destination="#id/bikeFragment"
app:popUpToInclusive="true" />
</fragment>
<fragment
android:id="#+id/bikeFragment"
android:name="com.gsixacademy.android.bikesrevisited.BikeFragment"
android:label="BikeFragment" />
</navigation>