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<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android">

    <RelativeLayout
        android:id="@+id/activity_main"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:id="@+id/tv_title"

PondThaitay

android {
   ...
   dataBinding {
        enabled true
    }
}

PondThaitay

public class MainActivity extends AppCompatActivity {

    private ActivityMainBinding binding;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        binding = DataBindingUtil.setContentView(this, R.layout.activity_main);

        binding.tvTitle.setText("What's up");

PondThaitay

public class UserModel {

    private String firstName;
    private String lastName;
    private int age;

    public String getFirstName() {
        return firstName;
    }

PondThaitay

<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android">

    <data>

        <variable
            name="data"
            type="com.jedsada.databinding.model.UserModel" />
    </data>

PondThaitay

public class FragmentExample extends Fragment {

    private FragmentExampleBinding binding;

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        binding = DataBindingUtil.inflate(inflater, R.layout.fragment_example, container, false);
        return binding.getRoot();
    }

PondThaitay

LayoutInflater inflater = (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
binding = CustomViewGroupBinding.inflate(inflater, this, true);

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public class MainActivity extends AppCompatActivity {

    private ActivityMainBinding binding;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        binding = DataBindingUtil.setContentView(this, R.layout.activity_main);
        
        UserModel user = new UserModel();

PondThaitay

public class Student extends RealmObject {

    @PrimaryKey
    private int studentId;

    private String firstName;
    private String lastName;
    private int age;
    private String gender;
    private String city;

PondThaitay

public class StudentManager {
    private final Realm realm;
    private static StudentManager instance;

    public StudentManager() {
        realm = Realm.getDefaultInstance();
    }

    public static StudentManager getInstance() {
        if (instance == null)