Passing data between fragments using SafeArgs

App Gradle

plugins {
    id 'androidx.navigation.safeargs.kotlin

Project Gradle

dependencies {
   classpath "androidx.navigation:navigation-safe-args-gradle-plugin:2.3.5"

nav_graph.xml

<fragment>
<action
android:id="@+id/action_SecondFragment_to_FirstFragment"
app:destination="@id/FirstFragment" />
<argument
android:name="myArg"
app:argType="integer" />

FirstFragment

import com.example.codelabsfirstappwithkotlin.databinding.FragmentFirstBinding

val action = FirstFragmentDirections.actionFirstFragmentToSecondFragment(currentCount)
findNavController().navigate(action)

SecondFragment

import androidx.navigation.fragment.navArgs

val args: SecondFragmentArgs by navArgs()

val count = args.myArg