Quick start with ViewState

Step 1: Add getID() method to your model:

public class EditViewModel implements ViewModel {

	public int getID() {
		return mID; /* uniqueID of your model */
	}
}

Step 2: Create ViewState for your ViewModel:

public class EditViewState implements ViewState<ViewHolder> {

	private final String mEnteredText;

	public EditViewState(ViewHolder holder) {
		EditText editText = holder.getViewFinder().find(R.id.your_edit_text);
		mEnteredText = editText.getText().toString();
	}

	@Override
	public void restore(@NonNull final ViewHolder holder) {
		holder.getViewFinder().setText(R.id.your_edit_text, mEnteredText);
	}
}

Note: if you use CompositeViewBinder then you should extend CompositeViewState

Step 3: Create ViewStateProvider for your ViewModel:

public class EditViewStateProvider implements ViewStateProvider<EditViewModel, ViewHolder> {
	
	@Override
	public ViewState createViewState(@NonNull final ViewHolder holder) {
		return new EditViewState(holder);
	}

	@Override
	public int createViewStateID(@NonNull final EditViewModel model) {
		return model.getID(); /* using the ID of ViewModel as a ID of ViewState */
	}
}

Step 4: Create ViewBinder for your ViewModel:

private ViewBinder getYourViewBinder() {
	return new ViewBinder<>(
			R.layout.your_edit_text_item_layout,
			EditViewModel.class,
			(model, finder, payloads) -> {
				/* your binding */
			},
			new EditViewStateProvider()
	);
}

Step 5: Register your ViewBinder:

adapter.registerRenderer(getEditViewBinder());