Xây dựng class CarDetailFragment.java - Ví lập trình android quản lý car

package com.vantinviet.adayroionline.ui.car.detail;

import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.VisibleForTesting;
import androidx.databinding.DataBindingUtil;
import androidx.lifecycle.ViewModelProviders;

import com.vantinviet.adayroionline.R;
import com.vantinviet.adayroionline.binding.FragmentDataBindingComponent;
import com.vantinviet.adayroionline.databinding.FragmentCarDetailBinding;
import com.vantinviet.adayroionline.ui.common.PSFragment;
import com.vantinviet.adayroionline.utils.AutoClearedValue;
import com.vantinviet.adayroionline.utils.Constants;
import com.vantinviet.adayroionline.utils.PSDialogMsg;
import com.vantinviet.adayroionline.viewmodel.car.CarViewModel;

public class CarDetailFragment extends PSFragment {

    private final androidx.databinding.DataBindingComponent dataBindingComponent = new FragmentDataBindingComponent(this);
    private CarViewModel carViewModel;
    private String carId;
    private PSDialogMsg psDialogMsg;

    @VisibleForTesting
    private AutoClearedValue<FragmentCarDetailBinding> binding;

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {


        FragmentCarDetailBinding dataBinding = DataBindingUtil.inflate(inflater, R.layout.fragment_car_detail, container, false, dataBindingComponent);

        binding = new AutoClearedValue<>(this, dataBinding);

        return binding.get().getRoot();

    }

    @Override
    protected void initUIAndActions() {

        psDialogMsg = new PSDialogMsg(getActivity(), false);
        binding.get().editButton.setOnClickListener(view -> navigationController.navigateToCarFormActivity(getActivity(),carId));



    }

    @Override
    protected void initViewModels() {

        carViewModel = ViewModelProviders.of(this, viewModelFactory).get(CarViewModel.class);

    }

    @Override
    protected void initAdapters() {

    }

    @Override
    protected void initData() {

        if (getActivity() != null) {
            carId = getActivity().getIntent().getStringExtra(Constants.CAR_ID);
        }

        if (carId != null && !carId.isEmpty()) {
            carViewModel.setCarByIdObj(carId);

            carViewModel.getCarByIdData().observe(this, result -> {

                if (result != null) {
                    if (result.data != null) {
                        switch (result.status) {
                            case SUCCESS:
                                binding.get().setCar(result.data);
                                break;

                            case ERROR:
                                psDialogMsg.showErrorDialog(getString(R.string.car_detail_error_message), getString(R.string.app__ok));
                                psDialogMsg.show();
                                break;

                            case LOADING:
                                binding.get().setCar(result.data);
                                break;
                        }
                    }
                }
            });
        }

    }
}