Realm Data Binding Example - MainActivity

realm-databinding-main-activity.java

public class MainActivity
        extends RealmActivity {
    Post post;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        ActivityMainBinding binding = DataBindingUtil.setContentView(this, R.layout.activity_main);
        post = realm.where(Post.class).equalTo("id", 1L).findFirst();
        post.addChangeListener(RealmDataBinding.FACTORY.create()); // this line is the key
        binding.setPost(post);
        binding.setActivity(this);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        if(post != null) {
            if(post.isValid()) {
                post.removeChangeListeners(); // remove change listeners just in case
            }
        }
    }
}