content: package androguard.test;
  
  import android.os.Bundle;
  import android.view.LayoutInflater;
  import android.view.View;
  import android.view.ViewGroup;
  
  import androidx.annotation.NonNull;
  import androidx.fragment.app.Fragment;
  import androidx.navigation.fragment.NavHostFragment;
  
  import androguard.test.databinding.FragmentFirstBinding;
  
  public class FirstFragment extends Fragment {
  
      private FragmentFirstBinding binding;
  
      @Override
      public View onCreateView(
              LayoutInflater inflater, ViewGroup container,
              Bundle savedInstanceState
      ) {
  
          binding = FragmentFirstBinding.inflate(inflater, container, false);
          return binding.getRoot();
  
      }
  
      public void onViewCreated(@NonNull View view, Bundle savedInstanceState) {
          super.onViewCreated(view, savedInstanceState);
  
          binding.buttonFirst.setOnClickListener(new View.OnClickListener() {
              @Override
              public void onClick(View view) {
                  NavHostFragment.findNavController(FirstFragment.this)
                          .navigate(R.id.action_FirstFragment_to_SecondFragment);
              }
          });
      }
  
      @Override
      public void onDestroyView() {
          super.onDestroyView();
          binding = null;
      }
  
  }