android navigation-safe args example
def nav_version = "2.3.5"
classpath("androidx.navigation:navigation-safe-args-gradle-plugin:$nav_version")
id("androidx.navigation.safeargs")
override fun onClick(v: View) {
val amountTv: EditText = view!!.findViewById(R.id.editTextAmount)
val amount = amountTv.text.toString().toInt()
val action = SpecifyAmountFragmentDirections.confirmationAction(amount)
v.findNavController().navigate(action)
}