package com.hyperling.roomexample import android.os.Bundle import androidx.fragment.app.Fragment import android.view.LayoutInflater import android.view.View import android.view.ViewGroup import androidx.navigation.fragment.findNavController import com.hyperling.roomexample.databinding.FragmentFirstBinding /** * A simple [Fragment] subclass as the default destination in the navigation. */ class FirstFragment : Fragment() { private var _binding: FragmentFirstBinding? = null // This property is only valid between onCreateView and // onDestroyView. private val binding get() = _binding!! override fun onCreateView( inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle? ): View { _binding = FragmentFirstBinding.inflate(inflater, container, false) return binding.root } override fun onViewCreated(view: View, savedInstanceState: Bundle?) { super.onViewCreated(view, savedInstanceState) binding.buttonFirst.setOnClickListener { findNavController().navigate(R.id.action_FirstFragment_to_SecondFragment) } } override fun onDestroyView() { super.onDestroyView() _binding = null } }