Forms

Forms for validating multiple fields

// init of fields
public final ValiFieldEmail email = new ValiFieldEmail();
public final ValiFieldUsername username = new ValiFieldUsername();
...

public final ValiFiForm form = new ValiFiForm(email, username, password, password2, phone);

And then instead of checking fields, just check form

<Button
	android:enabled="@{viewModel.form.valid}"
	android:text="Submit" />

This will ensure that all of specified fields must be valid in order to enable the submit button.

Destroying is easy

@Override
void onDestroy(){
  form.destroy();
  super.onDestroy();
}